Neurophone / more information

[nemanjar]

Hi im looking for schematics of neurophone build any information would be helpfull.

[admin]

Hi im looking for schematics of neurophone build any information would be helpfull.

I will built it once I get all my programs back, I just had to reformat.

[nemanjar]

Hi im looking for schematics of neurophone build any information would be helpfull.

I will built it once I get all my programs back, I just had to reformat.

Thanks in advnace !

[admin]

Hi im looking for schematics of neurophone build any information would be helpfull.

I will built it once I get all my programs back, I just had to reformat.

Thanks in advnace !

Here is  a Web App I made that can simplify this process if you wish to experiment.  http://typeright.social/neurophone/

[hasko]

Can i use these kind of piezo buzzers?
   

[nemanjar]

Hey Joel thank you for making web app I have struggles with making the circuit and connecting everything together , can you post few crude images of youre neurophone so I can replicate it based on image , im new to electronics so it would be so much easier to do it based if few images , thanks !

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Can i use these kind of piezo buzzers?

check the rating of piezo buzzer some can only go up to 1khz but yeah that type of piezo buzzers should work .

[hasko]

These are technical specification of the buzzers. Is these OK?
   

I found this piezo ultrasonic transducer in local store. I think this is the right one? What you think?
https://vikiwat.com/product/19807/ultras...mm.en.html

Also what kind of transformer is good to use, i mean 12 to 12 volts? Or 220 to 12?

[JoeLag]

These are technical specification of the buzzers. Is these OK?


I found this piezo ultrasonic transducer in local store. I think this is the right one? What you think?
https://vikiwat.com/product/19807/ultras...mm.en.html

Also what kind of transformer is good to use, i mean 12 to 12 volts? Or 220 to 12?

Is it silly of me that the first thing I think of is a guitar pickup transducer.?
As far as transformer goes an "isolation" transformer would work best. Any AC transformer should also work well, Typically, a high impedance device like a piezoelectric buzzer should be connected to the higher voltage output of the transformer. This is because a high impedance device requires a higher voltage to drive it than a low impedance device.

[hasko]

Hi, is that the correct setup? Can you see the images? Minus of the piezo is open or connect with ground of soundcard? No extra power supply for transformer? Only from sound card?
       

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https://youtu.be/aje_lGmC_wY
i made a video.
I try with common ground for transformer and piezo minus, it goes stronger sound.
Should there be sound?

[hasko]

Also i think, maybe piezo must be touched to the skin? Like echograph touch the belly of pregnant mother? Also cant figured out how to use two transducers?