Voice / Speech using Arduino || Talking Arduino || Speech synthesis using talkie.h

Hello dear friends,
In today's video, I will show you how to generate voice or speech using arduino uno. This is done by speech synthesis using talkie.h library. This library generates speech or voice from a fixed vocabulary encoded with LPC (Linear Predictive Coding). Talkie comes with over 1000 words of speech data that can be included in your projects.
Link for purchasing components used:
1. Arduino Uno board : amzn.eu/d/iH03OHj
2. Flame sensor : amzn.eu/d/bbwmuYY
3. 9V Battery with connector : amzn.eu/d/iDuP5cx
4. Rocker Switch : amzn.eu/d/hfcMMYP
Link to download code
1. Voice using arduino : drive.google.com/file/d/1wPBk...
2. Fire detector with voice alert: drive.google.com/file/d/1OOZw...
List of words and their vocabulary is included below:
Vocab_US_Large.h
github.com/ArminJo/Talkie/blo...
Vocab_US_Clock.h
github.com/ArminJo/Talkie/blo...
Vocab_US_TI99.h
github.com/ArminJo/Talkie/blo...
Please enjoy watching the video. Please share the video if you like it.
🎵 Song: 'Markvard - Dreams' is under a creative commons license license.
ruclips.net/channel/UC8zg...
🎶 Music promoted by BreakingCopyright:
• 🛀 Soothing & Chill Out...
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#arduinoproject

[@arpliego]

Hey, need your help, to begin with, i am using an arduino mega, i connected loudspeaker to port 3 and does not work but works in port 7, in addition, the volume is really low, nothing like your video, can you please help me with that?

[@Science_4U_]

Hi friend. I have shown video with arduino uno. In arduino uno, the audio output comes in pin no. 3 and an inverted output comes from pin 7.. So the 2 wires from speaker has to be connected to pin no. 3 and ground or pin 7 and ground in arduino uno. But if you connect the speaker wires to pin no. 3 and its inverted output pin no. 7, you get twice the output compared to connecting one wire to ground.

[@Science_4U_]

Now for arduino mega these pins are 6 & 7 instead of pin nos. 3 & 7 in arduino uno. So in your mega, you can connect speaker to pin no. 6 and ground or to pin no 7 and ground to get output. But if you connect the speaker wires to pin no 6 and its inverted output pin no. 7 you get twice the sound output. This is the maximum you can get.

[@Science_4U_]

So just connect speaker wires to pin no. 6 and pin no. 7 of mega to get maximum output. Also see the impedance of your speaker in ohm. The lower impedance like 4 ohm will give higher output. I have used 4 ohm which has given me higher output. If you further need to increase the audio output, the only option is to use an audio amplifier.

[@Science_4U_]

Hope I have clarified your doubt. Please try this and let me know.

[@pravee_777]

Is there any need for a resistor to connect the speaker..

[@pravee_777]

wheather the resistor is nessary in the connection btw speaker and arduino?

[@Science_4U_]

Hi friend. It is good if you are using a resistor between speaker and arduino. A 100 to 200 ohm resistor will do the job. A resistor will limit the current in the circuit and protect arduino. However, the sound output from the speaker will reduce. I have not used resistor but didnt face any problem with arduino. Ptobably if you are using it for short period of time, you can connect speaker without resistor also.

[@pravee_777]

Thank you...

[@pravee_777]

How to increase the volume of the speaker..

[@Science_4U_]

@@pravee_777 only way is to connect an amplifier to the speaker. The signal from arduino has to be first given to an amplifier. Then the amplifier output has to be given to the speaker..