That Circuit Cellar article is pretty nice! It seems that we could do something entirely on a PIC now. Quite a bit more ram, eeprom, and flash is now available (compared to 1998). You could also possibly use comparators inside the PIC, though external filters and preamps would be required. I wonder if something could be done with an analog input, capturing the high and low frequency "counts" in real time off the ADC (instead of capturing the waveform to RAM and analyzing later). Harold > Circuit Cellar ran an article on how to do this using a > microcontroller alone a few years back: > > http://www.circuitcellar.com/pastissues/articles/Stewart91/Stewart-91.pdf > > Also, a company called Sensory makes chips that do voice recognition: > > http://www.sensoryinc.com/ > > -Randy > > On 1/11/07, Brooke Clarke wrote: >> Hi: >> >> Is there a simple way to add voice recognition for the numbers 0 through >> 9 and maybe a couple of key words to a 16F88 level PIC project? >> I'm thinking there may be an IC that does this that's speaker >> independent? >> >> Have Fun, >> >> Brooke Clarke >> >> -- >> w/Java http://www.PRC68.com >> w/o Java http://www.pacificsites.com/~brooke/PRC68COM.shtml >> http://www.precisionclock.com >> >> -- >> http://www.piclist.com PIC/SX FAQ & list archive >> View/change your membership options at >> http://mailman.mit.edu/mailman/listinfo/piclist >> > > > -- > -Randy Glenn > Computer Eng. and Mgt. Year V, McMaster University > Regional Student Representative, IEEE Canada > > randy.glenn-at-gmail.com - glennrb-at-mcmaster.ca > randy.glenn-at-computer.org - randy_glenn-at-ieee.org > http://www.randyglenn.ca > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > -- FCC Rules Updated Daily at http://www.hallikainen.com - Advertising opportunities available! -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist