Thanks to all the great suggestions on my D/A noise. To start I am working on adding a Butterworth filter (8 order) to the D/A output and will test again to see what it sounds like. Once that is done I will look at any jitter issues. By the way, I got the open source Speex wideband (16Khz) decoding running on my LPC2138 board. I am using Speex to compress a 10 sec file to about 25KB. I will be comparing speex's quality to just playing from a wav file. Speex sounds good on my PC but need to see if any issue come up on the LPC2138. My goal is to put 10 mins of speech on a 2MB serial flash chip. Thanks again Tom
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Re: D/A noise
2006-01-23 by tengelberth
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