> Basically I want to make a very cheap voice playback device capable > 1. Is it a feasible way of doing this? > 2. What sampling rate would I need? (I was thinking 8KHz @ 8 bits > resolution) Is this good enough? > 3. Has anybody perhaps done something like this already? Was the sound > reasonably clear? I did this with an 8051 (not that it makes any difference) a while ago and it worked well. One of the Windows WAV file utilities lets you play with bit sizes and sample rates, so you can try it on your PC and see if it sounds good enough. It will show you the data size too, if you are planning on saving the data as a WAV file in your ROM which is about as easy as it gets. Steve. ====================================================== Steve Baldwin Electronic Product Design TLA Microsystems Ltd Microcontroller Specialists PO Box 15-680, New Lynn http://www.tla.co.nz Auckland, New Zealand ph +64 9 820-2221 email: steveb@tla.co.nz fax +64 9 820-1929 ======================================================