Make your own wedding audio guestbook - a step-by-step guide!
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- Опубликовано: 6 июл 2024
- In this tutorial, I'll explain how you can convert any telephone handset into an "Audio Guestbook" - a fun way for guests to leave recorded messages for you, and perfect for wedding receptions, events, or parties.
I'm aware of a couple of companies that offer these kind of products - "After the Tone", "FêteFone", "Life on Record", "At the Beep", and others - but they typically cost ~$400 to hire the equipment, and then additional charges to obtain copies of the audio files afterwards!
The guestbook I've built cost about £30 to make. It uses a Teensy microcontroller to save individual 16bit, 44.1kHz, CD-quality recordings to an SD card. Every time the handset is lifted, a new, numbered file is saved, which you can then load on your PC, and convert to MP3, save or share with your friends etc.
You'll need to have a little knowledge of electronics and coding, but I'll describe the entire process step-by-step. If you have any comments or questions, please leave them below and I'll do my best to answer!
Hardware used:
- A telephone! You can pick one up second hand for ~£10. Doesn't need to be fully-working, just so long as the microphone and speaker work! e.g. www.ebay.co.uk/itm/194940719631
- Teensy 4.0, ~£18. I bought mine from coolcomponents.co.uk/collecti..., but they're available from many suppliers, including Amazon.
- Teensy Audio Shield, ~£14
coolcomponents.co.uk/collecti...
- Screw terminal strips (A.K.A. Choc Block connectors), www.screwfix.com/p/3a-12-term...
- 3.5mm jack breakout board, thepihut.com/products/sparkfu...
Software used (all free, open-source):
- Audacity (www.audacityteam.org/) - for recording your greeting message and loading raw audio recordings from the SD card.
- Arduino IDE (www.audacityteam.org/) - for creating the code.
- TeensyDuino (www.pjrc.com/teensy/td_downlo...) - an extension to the Arduino IDE that allows you to target the Teensy hardware.
- SOX (sourceforge.net/projects/sox/) - for batch conversion of all raw audio recordings on the SD card into WAV or MP3 format.
Timings:
00:00:00 - 00:01:47 Introduction
00:01:48 - 00:08:12 Identifying Telephone Components
00:08:13 - 00:10:46 Teensy Controller
00:10:47 - 00:11:26 Fritzing Wiring Diagram
00:11:27 - 00:15:06 Wiring the Telephone
00:15:07 - 00:18:00 Installing TeensyDuino Software
00:18:01 - 01:00:07 Programming the Teensy using the Arduino IDE
01:00:08 - 01:02:13 Loading Recorded Messages using Audacity
01:02:14 - 01:04:02 Batch conversion of Raw Audio Recordings using SOX
01:04:03 - 01:05:17 Wrapup
You can find the code on my GitHub account: github.com/playfultechnology/...
A HUGE thankyou to my Patreon supporters who support me to create these video tutorials. If you're interested in finding out more, please do check out / playfultech , and don't forget to like and subscribe to this channel for more playful project ideas :) 
Хобби
Anyone else come here thinking this might be a great way to save money on this awesome guest book idea, only to end up thinking, well gosh no wonder they charge so much for this stuff. I was trying to keep up but this certainly is not easy DIY. Best of luck to anyone trying this for your wedding.
I've built this for my brother, took me a couple of hours to understand and build everything, but it works perfectly fine and the total cost was less than 70 Euros. It's easier than the code might suggest! :)
Thank you so much!!! You have no idea how helpful and meaningful this is for me and my fiancée. Look forward to spending many-a-weekends tinkering with this project!!! Thank you!!!! Again, really appreciate it!
Hi Kenneth did you manage it?
Getting married in 1 year and so happy I found this!!! Thank you❣️❣️❣️❣️
Thank you for this fantastic tutorial! Looking forward to trying more of your builds. Keep up the great work!
Thankyou!
Wow! This explains how to do so many things I’m wanting to incorporate into Teensy and audio board projects. Thank you SO much!
Did you get yours working?
I’ve gotten several working 😉
@@skinko8102 how did you gets yours working i am stuck at the comping stage
This was the inspiration for a really fun element at our wedding. Thanks for sharing!
Thank you for this. I was able to get it working in time for a wedding. This video is a great starter to get going but like others have said it isn’t a plug and play situation. You will need some basic soldering skills. I am completely new to coding but between this video and the github I was able to troubleshoot everything. This was a fun project.
Excellent instructions with great documentation & info. I built the telephone guest book using the instructions - it worked perfectly at a friend's wedding.
The bride and groom were very happy about this surprise.
Many thanks and greetings from Nuremberg :)
question, does it require soldering? Also, did you do this double height connector thing? Can I buy those and how do I connect it? Also, it looks like I need to get a Teensy board that comes with pins? Both the teensy dev board and audio adaptor board don't come with pins from these websites i can buy them from in canada
Ich würde so etwas gerne mit meinen Verlobten für unsere Hochzeit bauen. Könntest du uns vielleicht helfen und erklären wie du das hinbekommen hast? Wir wären wirklich sehr dankbar🙏🏼
My wedding planner told me about this idea for our vintage 1920s themed wedding. The companies that rent them were all sold out everywhere for our wedding day (coming up in October), so since I'm a data engineer by trade I decided to try building my own. Thankfully I found your video and github repo, spectacular work! I was able to get everything working beautifully, even on a 100-year-old candlestick telephone. Thank you so much!
interested in building for me? watched this video and have absolutely zero clue LOL
where did you source your teensy? Seems to be out of stock everywhere.
@@torileighr im looking for them as well... no luck
I’ll pay big money for you to make me one lol
@@torileighr any luck on sourcing one? I’m also looking
Thank you for taking the time to produce this video. A very detailed tutorial.
Saw several instagram ads for this service, then noticed the same setup on etsy for half the price relative to even that, and figured it's probably very easy if so many companies are offering it
lo and behold, a guide with $50 worth of kit and some code already written
thanks brother, this'll be going into a 1930s cradle telephone me and my fiance picked up in london over the summer
Hi where did you find the code already written? Is it in the tinseey board? I'm not a coder but would really like this for my wedding
Just built one! Thanks so much for the info, I was even able to run it off of 3 AA Batteries, and stuffed it all into the space of the phone, thanks again! So cool!
Awesome - great job!
@@PlayfulTechnology oh one question, seems like my recording quality like into the phone, do you think that’s a setting on the teensy, or just the old phone quality? If it’s the original 1970s mic, have you ever replaced or thought of replacing the mic in the receiver?
@@photobusta Hey Dan,
I did exactly this! I replaced the mice in the headset with a tiny electret mic I got from Amazon. It made an incredible difference! Just use the same cable going to the handset, cut the old mic off, and solder the new mic to the same cable. It's without a doubt 100% worth it.
@@kavilgajipra7951 what mic did you buy from amazon?
@@kavilgajipra7951 do you mind sharing the model of mic that you used? Greatly appreciate it!
When I saw how much the rental companies charged for an audio guestbook, I thought "surely I could build one of these myself". Thanks to your video, it gave me the confidence, and 95% of the information I needed to make it happen! I just finished my audio guestbook build a couple days ago and I'm excited to have it at our wedding. It took me around 6-8 hours, half of which was soldering and wiring, the other half was code and troubleshooting, but I was pumped to get it to work!
A word of caution to those attempting this. It is not a simple DIY for those who don't have experience with soldering circuit boards and basic coding knowledge. I don't want to discourage anyone from trying, go for it, but if you've never soldered before, watch some videos on that and get a practice board to hone your soldering skills. I have experience with soldering, but basically have no experience coding an Arduino, so I had a learning curve there (I do have some C++ and Visual Basic coding experience thankfully). Fortunately, the Github project associated with this video has the whole code already written, but it does require some tweaking to make it work properly. Read the main page of the project and also the "Issues" tab to see how people troubleshot the code.
A question to anyone out there, have you tried replacing the microphone on an old phone to get better recording quality? Mine sounds okay, but it sounds like an old phone (which it is), but it would be great to get clearer messages from our wedding guests.
I haven't changed the microphone (mine too sounds old). One thing I'm thinking of doing is buying a rotary phone from Bunnings (Australian warehouse) for $85. So if you live in Australia you could try that
I ended up swapping my "old" telephone microphone for a AOM-6738P-R that I purchased online for $9 including shipping. I had to increase the microphone gain in the Arduino code to a value of 30, but it sounds much better than the old microphone. Hope that helps anyone who has sub-par recordings from their current phone's microphone.
Just got mine working - thanks to you and all the folks who've updated the github, this was legitimately an easy project - once I figured out that the usb cable I was using to try and load the teensy with was data only -_- Once we got past that, no issues at all! I put a 2x 18650 holder inside the phone, so I won't need to have anything external at all, just a small hole to poke a screwdriver in to turn the battery on or off.
Cheers!
Thank you for this amazing tutorial and great solution!
Thank you for this tutorial. I ended up soldering instead of using the terminal connections, which allows you to pack everything in comfortably. I was quite relieved when it worked, as the wedding is in 2 days! Haha!
interested in building for me? watched this video and have absolutely zero clue LOL
@@tylers7526 hey. I can help if you are still interested.
@@salaib1157 hi there. Would you be able to assist me please. Parts on order
@@salaib1157 do you still built ?
Made this for our ceremony - worked perfectly! There's an additional library that needed to be installed for the program to run but that was easy enough to sort out. Thanks for this!
What was the library? Trying to get my ducks in a row when the components come in.
What's the Library that was needed?
Yeah, facing similar issues myself. Seems like the code linked in the description looks somewhat different to what's in the video. I also received errors about SD.h as there were multiple versions installed, and a complete absense of MTP_Teensy.h. Downloaded and installed this into the same location with the rest of the libraries and through more error lines than there are actual code lines. Still working through this now...
What did you do with the phone afterwards?
would you sell the phone now that your ceremony is over? Im extremely interested in it. Thank you in advance.
Great video. Thank you. Making this my weekend project.
Just finished my Telephone and it works perfectly thank you so much for this gem!!!
Where did you find the teensy 4.0 module? Thanks
Share how uploading files looks like. for me it does not work on Teensy 4.1. I can not run
@@koyenriquez4799 I took a risk with aliexpress If I remember correctly.
You sir are going to make my fiancé an extremely happy woman. Our wedding is next month so the timing on this blows my mind 😂
Awh, congrats! And don't forget to write your speech too!
@@PlayfulTechnology I need some help!!! I believe that I've wired everything correctly and have uploaded the code onto the Teensy. I have "greeting.wav" saved as a greeting on the SD card, but it seems that it is skipping over the playback and sine wav tones straight to the recording. Furthermore, I am seeing .RAW files being printed to the SD card, but there are no waveforms for the audio when imported into Audcaity :/
Our Wedding is next Saturday 5/28!! I hope I can make more progress in the meantime!
Here is my current serial monitor output:
Handset lifted
Button (pin 0) Press
Starting Recording
Recording to 00000.RAW
Stopping Recording
Handset lifted
Starting Recording
Recording to 00001.RAW
Stopping Recording
Happy to report that I have everything working. 😎😎
For anyone wondering.... Check the pins under your stack to make sure none of them missed the socket and are poking out into the middle of the stack..... (PIN 23 had done that on my board). My microphone was wired correctly the entire time but produced silent files until I made that correction.
Secondly, It might seem a bit elementary, but I found success playing the greeting file when I changed the file name on the SD card to "greeting" instead of "greeting.wav" as shown on line 147 of the code. Windows will assume the file extension as long as it was exported correctly (EX: if you name the file on the SD card "greeting.wav", it will actually read as "greeting.wav.wav" and will not be recognized).
serial monitor report when working:
Starting Recording
Recording to 00022.RAW
Stopping Recording
Handset lifted
Starting Recording
Recording to 00023.RAW
Stopping Recording
Handset lifted
Starting Recording
Recording to 00024.RAW
Stopping Recording
Handset lifted
Starting Recording
Recording to 00025.RAW
Stopping Recording
@@AlexTBall18 can you tell me which phone you bought, the one I bought its so old and has no battery , no board
@@AlexTBall18 hi can u send me a dm plz
Thank you for creating this video. I was originally going to tackle this using a Raspberry Pi as I had no idea how capable the Teensy was. The Teensy and audio card arrived yesterday from CC and I have a GPO746 arriving Tuesday.
Hey Scott,
We're you able to get this working? Are you using a vintage or modern 746 replica?
Could I use the teensy 4.1 as opposed to the 4.0? Would that make a difference? Thank you!
What happened? Did it work?
@@brittanikieta842 I'm doing the same thing. Do you have any tips or suggestions to get this to work?
All the companies were super overpriced but I loved this idea, building this for $50 USD even in this current economy. Thanks!
Thank you for documenting this project (docs have some room for improvement, but are good enough to get it working with some extra research) and making it available for others to try out!
Thankyou so much! It's hard to keep the documentation up-to-date, as I've merged changes submitted by other users and now the video no longer matches exactly what's in the repository, but do ask if there's something you can't figure out!
This video is fantastic and the comments have been helpful too. I have all of the parts and I'm trying to make this. I know some people haven't included the button, but if you did - where did you buy it??? I've replied so heavily on his links and now I'm stumped! TIA!!
This is a great video, very informative. I love that you explain the code and the reasoning behind the code and how to adjust it as need be. I do have a question about adding another button. Could one be added so that once you hear back the last recording you can delete it? I'm not sure if that would make it so that somebody could just keep replaying and deleting or not.
Just finished mine and got it working, thank you so much! Can't wait to use it at my wedding later this year. I managed to order the Teensy boards from the manufacturer in the US.
I am trying to find a way to afford this for my wedding. My fiancé has some IT knowledge but I think this might be outside our skill level. Can I ask if you are located in the US and if you will be selling your phone after you use it?
@@alexlee000 I can help you out.
Brilliant video! I was planning on building something similar using a raspberry pi I have lying around - the teensy appears to be much more suitable for the task; especially with the audio libraries already provided. Thanks a lot!
Awesome that this is up online and he's taken the time to produce it to show what is possible. But don't think this is easy or all steps are there. For a complete newbie, you need to learn quickly about headers, jumper leads and configuring the teensy. I can't get the code to work as it throws up some warnings and all the steps aren't present with installing all the software and libraries needed then uploading it to the teensy board. All of it you can of course learn but just be mindful that if you think you'll pick this up without having done anything like this before, you might not get to the end result. I'll need to get a programmer in to figure out the coding issues. But again, awesome this has been made.
This is a really cool project. I think rather than a playback button, a record button might be more useful, to allow the bride and groom to be able to record the playback message. Or maybe a handset hook combination to trigger the recording of the playback message.
The problem with having an easily-accessible record button is that your guests may either deliberately or intentionally over-record the greeting message!
I suppose you could have something where you hold the button for 10 seconds to record a greeting. That way it won't be accidently pressed by a guest
This was answered earlier in the thread. Just hijack time functionality for 5 seconds - wait() or whatever - and add another button to a different input slot and have it re-write ‘greeting.wav’
Love this video! I realized a few different ways of doing things and used some other resources but finally got up and running! I made 6 and you can access audio on an iPad!
Do you have a tutorial on how to do that?
Very interested in how you got the components working this way... im very new to all this and would love the tidbits and tricks!!
Tengo problemas con el mensaje de greeting, no se carga y lo tengo bien editado en formatoWav y la frecuencia correcta.
Thank you! It works perfect. Nice instruction!
Would anyone that successfully built one of these be able to share a diagram of how everything goes together and all the parts needed. The video just isn't detailed enough for a beginner like me.
I will post this tomorrow-ish and hope it helps you
@@markhickey4979 are you for real? That would help a lot :)
@@markhickey4979are you still posting the video?
@@Maikomans3rdid you do it? 😊😊
My wedding guestbook came out really well off of this tutorial! Thanks for the help!
Awh, that's great! Thanks for letting me know!
I'm having issues with the recording of messages. If I count 1-10, it's picking up every other number. What SD card did you use?
@@bnoogen Trying upgrading everything: the latest version of alistair's github code from three months ago fixed a lot of sd related issues for me, as well updating to latest teensyduino. As long as your card is under 64gb or lower in capacity I had no problems after updating the code.
@@REALMKANG Thanks for the insight! It works!
@@REALMKANG what did you do with the phone afterwards?
Would you be able to share which headers you used when slotting the Audio Shield with Teensy? Also, what header was used for 3.5mm head jack? Thank you!
Thanks so much! Everything works perfectly!
Can I ask you a few questions in private if you dont mind?
i got the order from my sister to build an audio guestbook for her daughters marriage - had no idea where to start - now you saved my life and the party - thxs !!!!
Does she still have it?
Nice tutorial! I really want to make one for my wedding next year, but as a wiring rookie I have no idea what the pins and female counter parts are called (so that I can acquire it) and how to install it on the teensy parts. A nice follow up video would be a step by step beginners guide on the hardware installation (rather than just showing the end result) 😇
I’d pay for this info
Hi, and thanks for the comment - that's a good idea! Sometimes it's hard to realise what bits need explaining more, and what is common knowledge that people would just find boring and obvious. But happy to do a video about soldering pin headers, choosing between male/female pins etc. if that would be helpful!
Yeah I get that! For me, a video like that would be really useful 🤩
Same here, that would be great to follow step by step if you get to do the follow up video. Thanks
@@PlayfulTechnology oh sir, yes please!!
I love this video and appreciate the step-by-step instructions! Everything was super helpful! I have an issue with my recordings being super low. I pumped up the micgain code from 15dB to 30dB and it got louder both in the recording and sputtering. The recording volume level isn't where I think it should be. Is there any suggestions you could give for fixing this issue? I am picking up a different phone tomorrow to test the microphone on the headset. Any advice well be greatly appreciated! Thank you again for making such a wonderful guide.
Update - I was able to get all my issues resolved. My wiring was the issue, sharing same points of contact caused my problems. I also had issues in coding to which library it was using between teensy and ardiuno, renamed the ardiuno library SD folder fixed that and added the MTP library from github.
Where specifically were the points of contact that eliminated sputtering? I’ve ran into this and each time have just spent loads of time picking apart heat shrink and desoldering and resolderimg every connection.
@skinko8102 where the wires were connected to the base. I initially shared the points where it was screwed into the base. Once I separated the points of contact for each wire, it cleaned up. So, different ground points for each connection.
@@b-rock4975 I'm getting very low volume on playback of the greeting and the recording. Recording seems to come out like there's a helicopter in the background as well. Reduced gain back to default of 10, tried up to 15 but it sounded even worse. I'm not sharing any connections for ground. I am using that chockbox thing rather than directly connecting the phone wires for the speaker/mic/hangup. A little frustrating that I got this far and it works only kinda.
@dragonsandflagons1928 This was the similar sounds I had before doing what I suggested in previous comments. I would review your wiring and also check the microphone as well to verify they are good. I was lucky enough to have a spare headset and tested with both. Without actually seeing it, I can't really suggest other options to check.
Hi, we have the same problem with my fiance. Could You please explain where exactly was the problem with wiring? What do You mean by „base”? We will be thankfull for any tip.
Thnak you a lot for the tutorial, can you please note what should I be carful about and what are the differences when using teensy 3.2?
Are you able to post up close pictures of the teensy board and audio shield together and separately? Just trying to figure out what header pieces you used and where. (I’m new to all of this so I’m trying to figure it out)
This video was so very helpful! I am struggling to find a Teensy 4.0 board, everywhere is sold out! Does anyone have any alternate solutions or any substitutions? Thanks in advance!
Same here, no where to be found, but I wonder if a Raspberry Pi would do just the same?
@@emeraldcitydjgil I got a Teensy 4.0 without pins and teensy header kits. Still working to figure it out. I might have to get a soldering kit :|
Thanks so much for the guide! I'm trying to put this together for my friends' wedding coming up soon, and I haven't really done many Arduino or similar projects. How would you advise going about finding some of the smaller components like the wiring, double height headers with the male pins and female connectors, button for playback, choc block connector? I see online there are many kits of different varieties, but they don't necessarily have the few components needed, or they have way too many pieces that I wouldn't use after this project. Some even have separate headers and pins that would have to be put together, not sure if you did the same.
Also, how large of an SD card would you recommend? And what kind of external box did you end up using for the housing of the board and components?
Any advice you can provide would be greatly appreciated!
I have the exact same questions! I would just like the names of the smaller components so I can try and order them. I also wanted to know about the battery supply! Any help would be great. Thanks so much
ALLOW ME TO ANSWER YOUR QUESTIONS
1. Answering these questions becomes a question of where do you live, I'm in sydney so i'll answer as if you were in sydney
2. RE " How would you advise going about finding some of the smaller components like the wiring"
FOR THE WIRING IF YOU DON'T CARE ABOUT THE COLOURS YOU CAN STRIP DOWN A CAT 5e OR CAT 6 ETHERNET CABLE
the cable used in old phone systems is Stranded core
these days it's UTP (Unshielded Twisted Pair) specifically CAT 2
but you can use Stranded core or solid core, in simple terms
You can use CAT5e (to go with stranded core)
You can use CAT 6 (to go with solid core)
Now if you care about the colours, i would go to Jaycar and buy some hookup wire (which is a stranded core) wire
3. RE
" double height headers with the male pins and female connectors, button for playback, choc block connector? "
GO TO JAYCAR
Look
RED SHEATH WIRE (comes in various colours)
www.jaycar.com.au/red-wire-wrap-wire-on-spool/p/WW4344?pos=14&queryId=3f553dcff45a5f9bc19e1b042d153669&sort=relevance
HERE IS THE PIN HEADER
www.jaycar.com.au/40-pin-dual-in-line-dil-jumpers/p/HM3250?pos=1&queryId=16ee491b2c3b595839d99d9174803361
TERMINATION BLOCK
Now these things come in hundreds of types and styles and colours
here is just one of them
www.jaycar.com.au/8-pole-pc-mount-pluggable-terminal-block-socket-5-08mm/p/HM3128?pos=18&queryId=29604db68cc69e5454e49f0369a6d6eb&sort=relevance
THE BUTTON
Basically you are looking for either a button or a switch, it doesn't have to be a button
Electronically speaking you are looking for a SPDT (Single Pole Double Throw) Switch
and then you have 2 versions, LATCHING and NON LATCHING (also called MOMENTARY SWITCHES)
Meaning... the latching one stays in place , the other one pops back after you release it YOU WANT A LATCHING SPDT Switch or Button
here is a switch
www.jaycar.com.au/spdt-flattened-actuator-mini-toggle-switch/p/ST0546?pos=17&queryId=5a191bc53f99bf7d8d66eac2aacee57a&sort=relevance
Now you should be able to either find this shit on ebay or a local electronics store or supplier
i think America also has Jaycar, you can also try Element 14 online or Digikey Electronics
ANY OTHER QUESTIONS
@@martinkuliza hi mate.
Can we hook up via zoom/Skype whenever you’re free please. I’m about to start building and would love your help? Happily pay you for your time. I’m UK and understand you’re Sydney. No issues with time whatever suits you I’ll work with.
Thank you so much
Tom
The price has certainly shot up since you posted this useful tutorial.
Hello,
Thank you for this video. I have a few questions.
1. What did you use for the box to contain everything.
2. How did you connect the microphone to the teensy?
Hi there - thanks so much for this. I know you've had a lot of questions but is there any chance you could list out the smaller components? I have got the phone, the Teensy 4.0, the Audio shield, jack breakout board and the screw terminal strips, SD card, as well as a soldering kit. I am wondering about what other components a beginner would need i.e. the headers, wires, and also how to connect to 5V battery. Thanks so much.
I'm also interested in getting this info!
Same here please!
Yes please!
Me also please - great video, can’t wait to have a go
@@connornewsomecn97 h
My cousin and I are going to use this tutorial and try to make this happen for my wedding next month! I’ve already bought the parts/waiting for them to come in. If you have any tips for someone with no background in this realm (besides your amazingly detailed video which I have already watched through once), they are appreciated! Thanks for putting this together!
How did it turn out?
Hi Nicole! I'm also attempting this, I just bought a few parts and I'm hoping I'll be able to put them together! Did you manage to create it? I also have no IT background, but I'm happy to learn. Have you been able to find any additional tips that helped you?
@@jerwj2001 my cousin has been helping me with the hardware part of it and we will be working on the next part with programming tomorrow! so hopefully we will get it done this week
@@sharonwidmer3709 Hi! I bought all the parts but my cousin has been helping me with her boyfriend because I have a lot on my plate right now haha. But we are going to work on the programming tomorrow so we'll see how it goes!
@@thenicoduzi any update! Im going to try this week 😅
Thanks! Worked greats and was a big hit!
Oh, that's so great to hear! Thankyou :)
Thanks a lot for this video and the additional instructions! Happy that my Audio Guestbook is fine with one little problem: i wired an eclectic microphone and the input signal is quite low (despite adjusting microphone gain level in the code). Could i replace the eclectic mic with an microphone solded on an amplifier (for example: GY-MAX4466) and the problem would be solved (without any additional capaciter?)? Thanks a lot for your help!
I was so excited when I saw this video as I have spent countless hours researching all of the ways that we can be frugal for our wedding. purchasing an audio guestbook through one of the established companies is a cost I'm struggling to justify, but having the audio guestbook means a LOT to me and my fiance as several of our family members are getting up in age and a recording of their voice and a message would be priceless for us.
all of that being said, I'm a little over halfway through this video and am doubting my ability to pull this off. is there anyone here that would be willing to build this for us if we purchase all of the parts and pay for your labor while still keeping it within reason? PLEASE let me know, it would mean the world to us. thanks
Hello! I happened to log in and see this. I have one black phone to sell for $350 + shipping and can put yours together (I can provide buttons and battery packs) for $200.
@@skinko8102 hi! I really appreciate the offer, but unfortunately that's what the audio guestbook companies are charging and I'm trying my best to do it for less. thanks anyway!
@@laurenstone3178 hey no worries! I just sold my last one. Yes, most cost that much to RENT. Most customers choose to rent their phone after use or resell for the same price or more. Thanks though!
Would you be willing to help me with the error code I am getting ? I will pay you for your time and effort
@skinko8102 I will pay for your time and effort. If you can fix my error code, I would appreciate it.
Very good video, thank you very much! Is it possible to record with a camera during audio recording? Do you have any ideas for it? Or should I use another controller for it?
this was awesome ! my first Arduino program and it almost did me. but once i worked out what i was doing wrong it worked great. It was a big hit at my daughters wedding :D
Hello, Can you help me .
@@emiliendelplanque462 well i suppose that depends what is wrong , it was may when i made this and i havnt touched Arduino since :D but will try
@@bradjhaye7732 Thank you. I'm French, I use a translator, excuse me. Can you tell me which code to use? When I want to check in the software, I get an error message. : Arduino: 1.8.19 (Windows 10), TD: 1.58, Board: "Teensy 4.0, Serial, 600 MHz, Faster, US English
C:\Users\EmilienDELPLANQUE\Documents\Arduino\sketch_jan13b\sketch_jan13a_test\sketch_jan13a_test.ino:30:10: fatal error: MTP_Teensy.h: No such file or directory
Multiple libraries were found for "SD.h"
30 | #include
Used: C:\Program Files (x86)\Arduino\hardware\teensy\avr\libraries\SD
| ^~~~~~~~~~~~~~
Not used: C:\Program Files (x86)\Arduino\libraries\SD
compilation terminated.
Error compiling for board Teensy 4.0.
This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
I really want to do this, but I'm a beginner. You explained the code bit really well. Would be useful to get a step by step of how you put the physical components together. How did you install the headers onto the teensy?
Like this ;) : ruclips.net/video/JFIR4xJmBjA/видео.html
@@PlayfulTechnology Thanks, gonna give it a go
@@PlayfulTechnology Been trying to do this without installing the double height headers (to keep it simple for myself)- Is there another way I can connect the hook switch wires to ground and to 0 on the teensy?
@@janonesu1657 It's a bit of a pain that the Teensy Audio shield uses up all the pins on the Teensy (even those that it doesn't need) - is there are way you can bend one of the pins sideways so you can access it?
some of the products are out of stock can you use the teensy 4.1 in place of the 4.0?
Did you ever find out?
I think so since the pins are in the same place. I'll be trying it out in the following months
Yes. This has been answered several times 😊. Purchase 4.1 audio shield too. Arduino Uno and Music Maker shield also works.
Hi, love the idea. Could you provide an alternate board since the teensy 4.0 is not available anywhere at the moment. Thank you in advance.
I enjoyed the good video.
It is easy to find the teensy 4.0 audio shield product. but teensy 4.0 is hard to find. so can I use the previous version of 2.0 or 3.0?
New to this whole thing I really want to do this for my wedding in a year. Teensy 4.0 is sold out everywhere with the chip shortage. Would a teensy 4.1 work as well?
Same for me .
Any answer for this?
@@becky92000 Yes, a Teensy 4.1 does the same job (tried it myself)
@@M8RTX Hey! How did you manage? I purchased everything and im struggling to transfer the code to board, up until the //global section
I have a teensy 4.1 with a 4.0 audio shield. Will this code work without many edits, I am new to the language and not much of a whiz.
My fiance and I have recorded 3 recordings that all say leave a message after the tone in stupid ways. Is it possible to randomly play one of 3 pre-recorded greetings when the guest picks up the phone?
Please sir :)
It’s be easier to do them in rotation than ‘randomly.’ Maybe a simple for loop for your ‘g0,g1,g2’ recordings. Or parse time and play based off odd/even/ending in 0
@@skinko8102 thanks for the idea!
Verry good, thank you. I'll try it with Teensy 4.1 instead. Apharently it has everything in one board so no shield needed. Do you see any inconvenient that I may be missing using this board??
I built it! The task was difficult and took a lot of time, but I got it done.
Hi, I am currently trying to build this for my sisters wedding. I keep getting a ton of error codes when I try to compile the codes and I've spent hours trying to trouble shoot so i was wondering if you could send me your code lines for me to use as reference?
This is awesome! Thank you so much for the video, just ordered everything, hoping I can keep up. Question:
How would the code change if after the wedding all we want to do is pick up the phone to listen to the playback and hit the momentary push button to go to the next message? No longer need the record feature after then :)
Did you manage to work out how to do this? It's possibly the main feature I want to have. I love the idea of keeping it in the livingroom and listening to the messages randomly as and when I want
Thanks a lot for this detailed tutorial! Will be a wonderful part of my brothers wedding! Ordered all the hardware for the installation mentioned in the list. Does somebody of you have a list of cables etc needed for this audio guestbook? Would be highly appreciated! Thanks a lot!
I'm interested in getting this info as well!
When your hardware arrives (Regarding the Cabling) shoot me a message and i can help you out with this
but simply stated
1. The cabling in the old phones is Stranded Copper (usually Diameter of 0.32 or 0.40) but it's not crucial, it's not like you have a 4 km run and we need to concern ourselves with Impedance mismatch
so simply stated, COPPER STRANDED CABLE (such as Hook up wire) is what your'e after
CAT5e Ethernet Cable uses the same
You can also use solid Core Copper such as CAT 6 Ethernet Cable
although the only colours that will be available to you are Blue, Orange, Green, Brown
2. for the entire project, You'll only need hook up wire or Ethernet Cabling
and of course IF YOU WANT , you'll need an Audio Cable can't remember if it was 2.5" Jack or 3.5" I think it was 2.5" Male to Male Cable
that's pretty much it
for the speaker you use the audio cable
for the Microphone, , Switch, Hang up level you pretty much use the solid or stranded core stuff for the rest of it
as i said, if you need help, hit me up for it
we can jump on skype or zoom or whatever if you need a hand
Electronics is my Forte
@@martinkuliza I keep having issues with compiling from the arduino IDE, I get the error message “multiple libraries were found for SD.h” do you know about I’m wondering if I extracted the teensy library to the wrong file but it seems like the rest of them are working, any help would be appreciated, thank you!
@@MegaSickduck
go to the Arduino library location
Delete the SD.h file (but ensure you don't delete it from the Teensy Location)
the recompile
you'll likely find that everything works now
also the Multiple libraries thing is not really an error , it's more like , it's telling you that it found multiple libraries but IT SHOULD TELL YOU it's using the Teensy library
in any case, Delete the Arduino one because you can always add it later in future projects if need be,
Delete it
Recompile
that should fix it
let me know how you go
i got this exact issue and that's how i solved it
@@martinkuliza it worked thank you!! I recorded a few messages and now it’s not recording anymore when I take it off the hook, I can playback old messages but not record new ones, is there any way we can talk to each other directly? I’m trying to figure this out
Such a great project! I'm getting married at the end of November and have been working on a couple of issues but can't seem to find a solution. I was hoping you might be able to help me out.
The first is that the recording of someone's message isn't starting until 3 seconds after the beep tone, cutting off any beginnings of messages. Can this be fixed?
The second is that sometimes the greeting doesn't play at all and just starts recording instead. Following on from this issue, after clicking the button a few times after it not playing the greeting, it just starts to squeal.
Really hoping you can help me out
Thanks for this great tutorial! Finally got it working! :)
Is it possible to save the audio files as Mp3-files instead of Wav and what would this require? (This might be a stupid question, but this was my first time trying programming so I'm a total amateur). Thanks once again!
Hi everyone! I am also trying to get this going. I was having a problem with the greeting playback. It would play at about half the speed or less even though I had 16pcm 44.1K. It turns out the problem was Audacity/my laptop microphone. I corrected the problem by connecting my Bluetooth headset and changing the setting to use that microphone in Audacity. After re-recording and copying to the SD card, the audio is now OK. Hope this helps some of you.
Where did you get your headers, wires, SD card and also how to connect to 5V battery?
Do you still have the phone?
Thanks a lot for a great tutorial! I just made one for a friend's wedding and there are two things I noticed:
- it's best to use "greeting.RAW" instead of "greeting.WAV", as there seems to be some problem reading the "wav" file even when exported correctly in mono (one of the commenters already pointed it out below);
- I got choppy recording from the microphone, even though I used a Sandisk Ultra micro SD card which previously worked on a GoPro. I got around this problem by buying a newer Class 10 card.
Did you notice that the Raw file plays way faster?
@@chrisfall706 How do you mean? Mine plays at normal speed, like it was recorded. I saved it as WAV first, but then had playback issues (like mentioned below), so I re-exported the file as RAW from Audacity with required settings (16bit, 44.1kHz, mono).
@@AndreiBorisenok by chance, do you know when the teensy board is fully programmed? I have everything hooked up but when i turn the power on, nothing happens.
@@jorgeruiz8505 do you have the teensy board connected to a computer or already to a phone? Can you upload the code to the board? If the upload shows no errors, then the board is programmed and should work, provided you connected all the wiring from the phone correctly.
@@AndreiBorisenok Hi Surrlic, yes I believe I connected all the wiring to the boards correctly and programmed the board with no errors. But when I turn on the power I only hear a deep tick and nothing else. I am not sure if its the coding that went wrong of the wiring connections although I have gone in detail to make sure all the wiring is correct.
Hi, thank you for your awesome tutorial, but would like to know that at 8:22 you mentioned that teensy 4.0 is best for audio recording? What about 4.1? Considering 4.1 has the SD card slot already, would I still need an audio shield?
Great project! I have a problem. The beep sound is playing before my greeting and also it's starting to record while my greeting is playing. How can I fix that? Thank you in advance.
I am also interested in building an alternative Version since the Teensy is not available. If the same is possible to do with a Arduino or any other hardware - this would be great! If anyone can give some hints or links how to do this - this would be awesome :-)
I just ordered parts from Adafruit and eBay to make another one. Parts come in tomorrow. I’m also working on an Arduino Uno version as it uses the same platform and logic. I’m having trouble recording with the carbon mic. I think I need to utilize a separate power circuit with bypass capacitor to eliminate noise from the junk hardware the Adafruit “Music Maker” audio shield uses. It has the same processor so I at least know it’s capable for this project. You may beat me though
You can use 4.1 teensy instead of 4.0
@@skinko8102 I figured out how to record with the Arduino Uno version - you're on the right track. Working on the logic now. I power my mic with a separate circuit powered by AAA battery to bypass noise from the Arduino Uno 3V power source.
@@skinko8102 Hi, Did you have any luck with your uno/adafruit music maker version?
Love this channel! I’m getting married this October. What would you charge to build and ship me one of these? :)
Sounds like he might not be looking to do that lol 😂
There are companies already providing that service as mentioned in the video description - the purpose of this video is to enable people to build their own ;)
@@PlayfulTechnology thanks for the reply. Yeah some one is asking me to do it ugh 😂. But it alot of thought 🤔 and I'm lazy.
Worked out perfectly - thanks a lot! Only problem i got is that the recording has noisy sounds if someone is speaking to the microphone with a smartphone nearby. Is there a proper solution how to reduce/eliminate those noises caused by the smartphones?
And another, just because this was so detailed!
It might be helpful for any others using your guide in the future if the parts list were a little more complete. SD card, aux cable, the various bits that help connect wires to circuit boards, etc.
Agreed. A 4xAA battery holder, on/off switch, playback button from Adafruit. And the audio jack breakout board, aux cable, and plastic screw terminals aren’t necessary - stick with soldering all wires for best sound/recording quality.
yea im watching the video for the tenth time now and realizing i have to buy a button and a "double height header"
@@adrag8095 definitely recommend gorilla glue and zip ties to douse wires and connections to make everything rugged
There’s also a mountable micro USB port that fastens to the phone cover and extends the Teensy input so the cover doesn’t need to be removed to transfer files to/from the micro SD card.
@@skinko8102 Hi, looks like you are quite experienced with the hardware to use :) Maybe you could me an provide more detailed specifications of the parts that are needed? Teensy 4.0 incl. audio shield is clear, but what else do I need? I'm not sure exactly what kind of "double height connectors/headers" and button(s)/switches I need. I would charge the micro controller via a powerbank (so, the battery holder is not needed). And I would also leave out the jack breakout board as already recommended here in the comments. Thanks a lot for your help!
If your an amateur and are using anything other than the exact windows or whatever I would suggest not attempting. I have a mac and can't get it to work to save my life. Bummed I spent a couple hundred bucks on parts to save me 100 bucks (instead of renting for 400 I spent 300 on parts) and now I'm ending up going to rent because its so complex (without extensive computer and code knowledge) so I'm 700 bucks into this instead of the 400 to just rent in the beginning. Thats the cost of two nice dinners on my honeymoon I lost thinking I could get this to work. trust me, once you get to programming the arduino board it gets messy. its not a copy the code and paste it into arduino sketchbook type deal. its copy paste then pray you can figure out all the error codes.
I can help you if you need it.
hi, thank you very much for the great tutorial video!
if I hang up the phone while the message is playing, the message starts again (despite hanging up). Otherwise it works great! am I doing something wrong?
thank you very much, best regards
Great video, What did you use to connect the mic wires and switch wires to the teensy?
Also how did you hook up the recording decide to a SD card?
It's just a cable with a 2.54mm header crimped on the end. See ruclips.net/video/8sHeR4Uozck/видео.html
So he says for about roughly 30 pounds. Which equals out to about $37 USD. I am here to tell you that this is just not accurate. The price of just the Teesy and the Teensy Audio Shield is just shy of $50 USD after shipping. On top of the breakout board being roughly $7 but the shipping being almost 3xs that. I was given $100 to complete this project. The budget has already been increased by $50-60 to get the multimeter needed, and the extra wiring needed. Other than that, this is a fantastic project and I will definitely post a comment again when I am done with it!!!!
There is currently a global chip shortage which has unfortunately affected the price (and availability) of many microcontrollers including the Teensy and Raspberry Pi, but I'm surprised that the shipping to the U.S. is that much (obviously I'm in the UK so not affected by that)
@@PlayfulTechnology is this possible to do with the raspberry pi? I have a 3 and wondered if there was an easy way to do this the same way?
Even if it's more than the $37 USD, it's still significantly less expensive than renting a device!
@@amyblankenship789 no, factoring in time, knowledge needed, learning time if you don't posses said knowledge, ECT. It's is infinitely cheaper to rent one. Unless of course you have absolutely nothing else to do then this is right up your alley. But if I wasn't being paid to create this for a friends wedding, I would have just rented one if I needed it lol but that's just me. Have you built one yet? If not I don't think you're really qualified to interject your opinion here lol 😂
@@amyblankenship789 just materials wise, we're $160 in. Lol this video is assuming you have a lot of stuff laying around also to use, like extra 22awg wire and terminal connectors and such like he uses in this. If you don't also have those things, the price increases. Luckily I had some of the stuff laying around but not all of it. Also a lot of the parts used are UK based and shipping is expensive. That's where MOST of the money has gone actually. I tried to source them closer but no where seemed to have exactly what I needed. As previously mentioned, the 3.5mm breakout board was $7 but $21 to ship it to the states with a tracking number. Coulda did it for $10 less with no tracking but ha, no. So that right there just one board is the price of the original video. I mean if you want to spend the money and this is a project you want to do, more power to you. Just the description/implication is slightly misleading in the years following this video as it's now cheaper to rent one due to shortages and inflation
@Playful Technology did you release your code as a general template? I would love to look at it while I write mine to make sure I'm getting all the functions coded correctly lol
Hello! I have procured a Teensy 4.0 and audio shield which are permanently soldered together (i.e. there are no female headers on the Teensy board to allow the connection of wires for the hook switch). Is it okay to solder the wires directly into the solder joint (the solder joint that exists for the headers that stack into the Audio Shield)?
Can you recommend a resource for the double-height headers that are compatible with a teensy 4.0? Thanks!
I hope my question doesn't get lost like the rest: How do you exactly use the shielded microphone cable?
I love your video and how you explain things. This is a wonderful resource however, I feel I’m missing some basic knowledge or fundamentals. To clarify I have all the tools do tackle this project I just need to buy the components.
Some questions I have:
Can I purchase a new GPO 746 retro or does it need to be vintage?
The teensy 4.0 does it need headers or just a teensy 4.0?
The audio Shield is it normal or rev d?
Should I buy a sandisk SD card and if so what type?
For context I have to order the parts from Core Electronics in Australia
I'm using an original 746, but in theory this will work with any handset (because you're not actually using the vast majority of the telephone's electronics - you're just using a few of its components - the microphone, speaker, and the switch to tell when the handset is lifted - and those are common to *any* phone).
You can buy one already pre-soldered with headers or one without - just notice the point I make about needing to access a few of the GPIO pins which would otherwise become slotted into the audio shield.
The version of the audio shield needs to match the version of the Teensy you're using. If it's a Teensy 4.0, get a 4.0 audio shield. If it's a Teensy 3.6, get a 3.6 audio shield, etc. You *can* use a mismatched version, but the pins won't line up neatly, so you'll have to wire it in manually with some short wires instead.
Brand is unimportant, but get a good quality (i.e. fast) SD card so that it can transfer data fast enough to record the audio data in real-time without corruption.
Thank you for the tutorial, can this project use Arduino Nano?
Hello, and thank you for sharing. This really makes me want to try, but it seems quite advanced for novices, even though you explain things very well.
Could there be an answer way, like maybe to connect a telephone to a dictaphone?
Best regards from Corsica.
I know I'm a bit late to this vid but as someone who is technologically inclined but new to this type of building I appreciate the detailed explanation. I am a complete beginner when it comes to coding and purchasing the items needed for this project, so I have a question. I see I can purchase the teensy 4.0 with pins or without pins, in the vid you seem to have a teensy with pins, correct? can I purchase a teensy without pins and add them? It's difficult to find these at all in the US right now. Also, do I have to use the 4.0, or can I use a different version without affecting the final product? any advice would be helpful! Thank you!
@Emma Greenbury said they bought additional stuff in another comment:
" + breadboard to balance the teensy and audio
shield while I was soldering
* 40 goldpin female headers (2.54mm)
* 40 goldpin male headers (2.54mm)
+ 8-pin goldpin header 10mm extender
(2.54mm)
*40x jumper wires male to male - I stripped
off one of the male ends, exposed the wire
and put it in a WAGO connector (see below),
then connected the male jumper end to the
corresponding female header
+ 6x 4 hole WAGO splicing connectors -
because I had to cut my mic and speaker
wires in order to connect them to the Teensy.
I ended up finding the 4 hole ones were best
(I used them with, say, al14 yellow mic wires,
then another for all black wires etc)."
Going off this I bought:
Breakaway Male headers,
Female headers,
Stackable headers
I think its better to buy the board without pins then solder them in
So I got everything to work so I wanted to pack everything nicely into the phone, which required me to take things apart. After running some final tests, I can't seem to be able to record a message anymore, this is, the only thing I record is either silence (when imported in Audacity using Signed 16-bit PCM, little-endian) or very noise when using the 'detect' button (signed 8-bit PCM, which is also strange). During the integration i accidently switched the mic and speaker inputs; could this have damaged the teensy boards? Note that I tried it with a horn from another phone (in case the mic got damaged), but got the same results. It is only a few more days before i need it so any help on this would be very much appreciated.
I’d really love to build this project but the teensy and audio board components seem impossible to find in stock anywhere. Are there any alternatives I could use? Thanks in advance!
Are the speaker and microphone wiring on the wiring diagram swapped? In the video at 3:26 you mention that the white and blue wires drive the microphone but in the diagram the white and blue wires are connected to the speaker.
Is these any possibility to provide the material to purchase from US like Amazon ? Thank you
Hi would you supply the system premade and programmed so i can just install into a phone
Allistair- would you be willing to do a walk through with the latest Arduino interface and library installation fo Teensy 4.1?
Hello! You are amazing for putting this video together!
I am an industrial electrician, so I am not knowledgeable about the technical/IT part.
Is there any way you can send me more links to the parts needed? The ones you added are sold out. Can I get them anywhere? I am very determined to do this for my wedding in June.
Is it possible to use the Teensy 3.0? The 4.0 isn't available until late July which won't give me enough time to do before my daughter's wedding.
Is it possible to make it in a way, that the maximum recording time is, for example, 5 minutes?
Audio Jack Breakout board- what is the name of the thin black connector that has the two wires (red and green in it)? Thanks
Can this be done with a telephone that has a modulated handset? (wires are not strung through the handset directly to telephone's internal components)
I'm so thankful for finding this video! Now, as a complete layperson, I'm a little wary of launching into this, but it seems the worst that can happen is I'll be out some money. I was wondering, could you share where you got the headers for the audio shield?
Headers (Pololu) from Pimoroni or Hobbytronics.
Thanks for this, Im from mexico so evrything that you're selling its difficult to obtain from your web. Can you make something like this, but converting the phone in a server? so the people can save everithing in a computer?
I finally figured out getting the phone to work, what line of code do I need to edit to raise the mic record volume and also extend the recording length of time as it cuts its self of through the message. Fantastic video thanks for sharing.
Increase the micGain, as described @37:00
Hey! Awesome video, just what I was looking for!! I have an old 3.2 Teensy board… do you think it’d work or should I upgrade?
I'm pretty sure the Teensy 3.2 is perfectly capable of running this project. The audio shield won't snap directly onto it, because I think the pinout/form factor differs slightly, but you should be able to connect it using short connection cables instead.
Hey there! Did you test the 3.2???
I really appreciate the tutorial! I do have a question, I just bought a rotary phone but obviously it's landline. How would it work connection wise? Do you need an adptor for a plug in? What If the location doesn't have a landline connection?
You don't need to plug the telephone in. The speaker and microphone in the handset are passively powered from the Teensy (which you can run off a 5V USB powerbank)