Hi, I recently got this breakout board from Spark Fun and connected it to a mic= rocontroller. I read the ADC values @ 8 kHz and recorded it to a WAV file.= =A0 I played the WAV file and it turns out that the audio content is clear i.e = I am able to listen to things I say in front of the microphone but I find m= y voice to be really feeble. It is better if I keep the microphone closer t= o me. According to the specs mentioned in the product page, the gain of the= board is 100. I am trying to learn how can I improve the audio quality tha= t is recorded using a microcontroller.=A0 I am not looking for an off-the-shelf solution but prototype things and lea= rn in this process. I am trying to learn to build a system that records the= audio in a room with some good quality. I don't know how to experiment wit= h the recorded audio files to determine where I stand now and improve the a= udio levels in the file. I did some search and the web presents a lot of so= lutions with opamps and a myriad of calculations with opamp circuits etc. M= y question is: How do I record audio in a room that is actually audible? I = want to improve on the existing setup. Currently the microphone board's opa= mp output is being fed directly to the ADC.=A0 Thanks, Sai --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .