A few decades ago there was one in the Science Museum in Saint Paul, MN and it was shocking how well it worked. I suspect that listening to private conversations of other visitors eventually became untenable.
This would be fantastic for hunting, out where there are no cars, no roads ... you'd be able to hear deer walking around, hear how it amplifies the ambient or 'background" noise. That's Impressive.
I did make one of those back in the day. Stereo with both internal and external microphone 🎤 it's a pretty cool device, but I never found a nice enough parabolic dish for the reflector part. An old metal lampshade was not quite good enough. 😊
Pretty cool. I could barely hear the talking when you were close to the player at first, and couldn't hear it at either distance, but I have a hearing loss, so I'll take your word for it. I used to build DIY projects like that years ago. I built a windshield wiper variable delay from a magazine design for a little '85 Dodge RAM D150 that only had 2-speeds and off. I bought a cruise control for it from JC Whitney and installed it. I designed my own car alarm system for an '82 Oldsmobile Cutlass. I've built all kinds of things from electronics projects magazines, but I tend to buy products that I want and need now instead of building them. I still try to repair everything I can and am usually successful at it, be it electrical, electronic, mechanical, etc. Persistence and determination are key, just like you making improvements on this project. I wonder if other things for the parabolic bowl would be more efficient and/or cleaner. Maybe insulate the outer metal with something because it's rather thin. Extending the bowl with cardboard or something may help block the wind and background noises from the sides. A true parabola shape might help, too. Even still, great job, Scott! Just sharing thoughts.
I have some questions about the microphones used in parabolic microphones, instead of using lavalier mics would it increase volume input with a shotgun mic or a condenser mic or would this decrease its performance?
While shotgun microphones are great for direct sound capture, in a parabolic microphone setup, an omnidirectional microphone is typically preferred because it's better suited to capture the focused sound delivered by the parabola. The parabolic reflector essentially replaces the directional function of a shotgun microphone. 😊
Funny you should say that, I just saw one for sale 5 minutes ago and had the same idea and so I started looking for diy parabolic listening devices and found this
I have a really nice handheld digital recorder and I have a condenser mic as well as a few dynamic mics. I'd rather make one and buy a generic $50 piece of junk 😊
Terrific thumbnail and thanks for another great video!
Oh project farm in the house 🤙
2 of my favorite Utubers!
Aw Project Farm here too!
A few decades ago there was one in the Science Museum in Saint Paul, MN and it was shocking how well it worked. I suspect that listening to private conversations of other visitors eventually became untenable.
Awesome demonstration!
Glad you like the video! Be sure to share with others. Thank you
This would be fantastic for hunting, out where there are no cars, no roads ... you'd be able to hear deer walking around, hear how it amplifies the ambient or 'background" noise. That's Impressive.
When you walk you can hear loud crunching on the ground.
That was like a hundred years ago! You haven’t aged a bit my man! Thanks for the content.
When using a police scanner no longer trips your trigger...lol
Amazing diy
Good job , LIKE
thanks for another great video
I did make one of those back in the day. Stereo with both internal and external microphone 🎤 it's a pretty cool device, but I never found a nice enough parabolic dish for the reflector part. An old metal lampshade was not quite good enough. 😊
I was lucky to find a metallic dish that had a flat bottom that I hammered out. Thanks for watching!
@@electronicsNmorecan i use tv dish
@@electronicsNmorecan i use tv dish
That's awesome, what is it like listening if pointed at a window with other people talking behind it?
@shangex4795 🤣
Pretty cool. I could barely hear the talking when you were close to the player at first, and couldn't hear it at either distance, but I have a hearing loss, so I'll take your word for it. I used to build DIY projects like that years ago. I built a windshield wiper variable delay from a magazine design for a little '85 Dodge RAM D150 that only had 2-speeds and off. I bought a cruise control for it from JC Whitney and installed it. I designed my own car alarm system for an '82 Oldsmobile Cutlass. I've built all kinds of things from electronics projects magazines, but I tend to buy products that I want and need now instead of building them. I still try to repair everything I can and am usually successful at it, be it electrical, electronic, mechanical, etc. Persistence and determination are key, just like you making improvements on this project.
I wonder if other things for the parabolic bowl would be more efficient and/or cleaner. Maybe insulate the outer metal with something because it's rather thin. Extending the bowl with cardboard or something may help block the wind and background noises from the sides. A true parabola shape might help, too. Even still, great job, Scott! Just sharing thoughts.
I have some questions about the microphones used in parabolic microphones, instead of using lavalier mics would it increase volume input with a shotgun mic or a condenser mic or would this decrease its performance?
While shotgun microphones are great for direct sound capture, in a parabolic microphone setup, an omnidirectional microphone is typically preferred because it's better suited to capture the focused sound delivered by the parabola. The parabolic reflector essentially replaces the directional function of a shotgun microphone. 😊
Unable to locate the link for making this.
It's a video thumbnail at the very end of the video you can't miss it.
Altoids can?
It looks like a perfect case for a guitar distortion pedal or preamp!
What happens when you process the audio through one of the new noise cancellation applications such as NVIDIA RTX Voice?
I use Audacity to remove noise I do not want, which makes it much easier to hear what you're targeting.
Nice 🎉
A good source for a parabolic reflector is a 1950s type electric heater with the coiled element removed.
Yes!
Funny you should say that, I just saw one for sale 5 minutes ago and had the same idea and so I started looking for diy parabolic listening devices and found this
Where’s the link to learn how to build it
Please, could I have the instuctions? Is awesome!
Click the video link thumbnail at the end of the video
Where is the mentioned link?
would a small satellite dish work too?
too bad you cant make it focus on the specific point of noise.
Yes. If the mics are properly positioned
I can't see the link to the making of video.
How can you miss it? Clearly you left the video before it was done.
I'm on the phone and it's not showing
I want to buy it how much?
Incredible Talented 🚹.
Now, do it the other way and make a long distance sound thrower 🤔🤔
Or acquire an ultrasonic listening device & use it with your parabolic reflector.
I have a really nice handheld digital recorder and I have a condenser mic as well as a few dynamic mics. I'd rather make one and buy a generic $50 piece of junk 😊
Great for guys who are creepy and frugal 😂
Leave your wife and me alone we tryna talk!
LOL
I heard nothing thought we were going sample a real conversation not static and maybe a cricket or two.
Wow if you couldn't hear anything, then you better get your hearing checked.
Couldn't hear a thing.
007
If you do the correct math and make a less deep and more wide dish it works much better
Creepy for creeps
Not very convincing...
that's crap
Incredible Talented 🚹.