Precision Audio Generator For Musical Instrument Tune-Up Circuit


Posted on Mar 20, 2013

One section of the precision audio frequency generator uses an electret microphone element to pick up audio from the piano. That signal is then processed and sent to one channel of a dual-trace oscilloscope. The other section of the circuit is used to produce a variable-frequency signal that is fed to a digital frequency counter.


Precision Audio Generator For Musical Instrument Tune-Up Circuit
Click here to download the full size of the above Circuit.

After conditioning, the audio signal is presented to the second channel of the scope and output to a set of stereo headphones.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Infrared mains remote control Switch
VU meter circuit
DC to AC inverter
80M-amateur-radio-transmitter
Computerize Your Room/House
how to make 18 led light chaser circuit
roboat
High Side Current Monitor
Smoke Alarm Battery Life Extender
Negative Voltage Hot Swap Controllers in SOT-23
Microchip PIC18F252 druid circuit
Refrigerator power protection circuit
W7800 by the application circuit composed of power supply tracking



Top