On 11/22/06, Vitaliy wrote: > ..it is definitely worthwhile to stop recording if there isn't anything to > listen to. At the very least, don't record the silence (have a preset > threshold). There are also clever ways to eliminate at least some of the > background noise (record to buffer first, analyze -- then decide whether to > save that bit or not). That seems reasonable. Where to place the cutoff is the question, however. It's those people who speak very quietly who's speak I might be most interested in. Either way a very low power device would have to buffer it. You wouldn't want to keep the flash chip on all the time (the charge pump for flash programming does take some power). SRAM is very low power, though expensive, but a MB of SRAM would require you to power up the flash only once every 2 minutes if uncompressed, and significantly longer if compressed. -Adam - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Moving in southeast Michigan? Buy my house: http://ubasics.com/house/ Interested in electronics? Check out the projects at http://ubasics.com Building your own house? Check out http://ubasics.com/home/ -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist