I've spent several hours wandering around trying to find an accurate description of the WAVE file hearder for an IMA ADPCM file or stream, such as that produced by the Microchip IMA ADPCM algorithm. I've created anIMA ADPCM file using Audacity, but there are several bytes that don't make a lot of sense. So, can anyone point me towards a detailed description of this header? THANKS! Harold --=20 FCC Rules Updated Daily at http://www.hallikainen.com - Advertising opportunities available! Not sent from an iPhone. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .