12-23-2023, 05:35 PM
(06-18-2023, 06:04 AM)hasko Wrote: 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?
Yeah its normal that you can hear sound, some will hear it better some may even hear the ultrasonic frequency as you don't have much high range in the sound card but technically enough to experiment.
The tricky part is finding out a way to hold those bulky piezo plates to the skin of the forehead.
And remember this is the "toy" setup. A hookup you can do at home instead of buy the box today online. Some no name brands don't even have an ultrasound they just play back the audio in the piezo ( kind of lame )
The traditional neurophone uses low frequency RF high voltage and ultra sound mixing.