>..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). One would probably need to record to buffer anyway, so that saved recording doesn't get cut at the beginning, after the "record" decision is made. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist