Datasheet

Now try listening to sounds on the headphones, you should notice a strange 'effect' where you can

hear people from further away than your hearing is used to! Try setting the Gain pin to the GND

pin to get 10dB more gain. You can also remove the Gain wire, to set the gain to 60dB but you may

find the gain is way too high, and it sounds 'too noisy', so we suggest sticking to 40 or 50dB for

most purposes.

You can also try adjusting the A/R (attack/response) ratio by connecting the A/R pin to VDD or GND

but we found that the default no-wire works pretty well for most purposes.

Do more!

Now that you have the amplifier tested, you can use this microphone amp just like our non-AGC

board.

Check out http://learn.adafruit.com/adafruit-microphone-amplifier-breakout/measuring-sound-

levels (http://adafru.it/d9p) and http://learn.adafruit.com/adafruit-microphone-amplifier-

breakout/more-cool-projects (http://adafru.it/d9q) for other projects that can be adapted to use this

amplifier.

https://learn.adafruit.com/adafruit-agc-electret-microphone-amplifier-

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