Post by thread:[OT] voice chips

i've read various messages here from people messing with voice chips. i've got an application where i need to play 20 messages of 4sec each (recording is done off-site, and OTP memory would be fine). the customer talked about individual voice chips, i'm not sure whether this is a requirement (individually exchangeable) or whether i could use a bigger chip with addressable messages for all 20 (i'll find that out tomorrow). in any case, i'd be grateful for some pointers to manufacturers of easy-to-use voice chips. i saw the ISD chipcorder chips, and they seem to be fine, but since they have the recording part on-chip and i don't need that, i thought there might be some cheaper chips out there which only do the playing (which also might be safer against data loss). there would be no problem if some special programming equipment was necessary. TIA, ge

Gerhard ISD chips are very likely your best choice unless you want large volume and fixed messages. ISD chips can record but you don't need to provide the support circuitry on borad for this if you don't need it. 20msgs x 4 seconds = 80 seconds = ISD2590 as one choice. You really want to avoid u The ISD25xx family need NO external analog support and in your application need only to be addressed and appropriately "triggered". The newer ISD33xxx series are less pin intensive to control (semi serial interface) but need more analog glue chips for recording and possibly for playback (eg no internal speaker driver). regards Russell McMahon >i've read various messages here from people messing with voice chips. i've >got an application where i need to play 20 messages of 4sec each (recording >is done off-site, and OTP memory would be fine). the customer talked about >individual voice chips, i'm not sure whether this is a requirement >(individually exchangeable) or whether i could use a bigger chip with >addressable messages for all 20 (i'll find that out tomorrow).

Gerhard Fiedler wrote: > > i've read various messages here from people messing with voice chips. i've > got an application where i need to play 20 messages of 4sec each (recording > is done off-site, and OTP memory would be fine). the customer talked about > individual voice chips, i'm not sure whether this is a requirement > (individually exchangeable) or whether i could use a bigger chip with > addressable messages for all 20 (i'll find that out tomorrow). > > in any case, i'd be grateful for some pointers to manufacturers of > easy-to-use voice chips. i saw the ISD chipcorder chips, and they seem to > be fine, but since they have the recording part on-chip and i don't need > that, i thought there might be some cheaper chips out there which only do > the playing (which also might be safer against data loss). there would be > no problem if some special programming equipment was necessary. > > TIA, > ge See http://www.furb.rct-sc.br/~mw/isd_i.html

Russell McMahon wrote: {Quote hidden}> > Gerhard > > ISD chips are very likely your best choice unless you want large > volume and fixed messages. > ISD chips can record but you don't need to provide the support > circuitry on borad for this if you don't need it. > 20msgs x 4 seconds = 80 seconds = ISD2590 as one choice. You really > want to avoid u > > The ISD25xx family need NO external analog support and in your > application need only to be addressed and appropriately "triggered". > > The newer ISD33xxx series are less pin intensive to control (semi > serial interface) but need more analog glue chips for recording and > possibly for playback (eg no internal speaker driver). > > regards > > Russell McMahon > > >i've read various messages here from people messing with voice > chips. i've > >got an application where i need to play 20 messages of 4sec each > (recording > >is done off-site, and OTP memory would be fine). the customer talked > about > >individual voice chips, i'm not sure whether this is a requirement > >(individually exchangeable) or whether i could use a bigger chip > with > >addressable messages for all 20 (i'll find that out tomorrow). Did someone get success for discover the address of each message after write them in PUSH-BUTTON mode? Let's me explain better, a program that reset the IC and looks the address of each variable size message? Miguel

Gerhard, I think the ISD chip would suit you well. I made a talker unit for a guy that has a verbal handicapped daughter. I used a pic16C62 and ten buttons with an ISD25120 (2 minute device) The first 6 buttons could hold a 5 second message, 7 & 8 were 15 seconds each and 9 & 10 were 30 seconds each. -Ralph spam_OUTrlandryTakeThisOuThaywood.main.nc.us "If they call it Tourist Season why can't we shoot 'em?" ICQ# 19545315

At 17:06 01/25/99 +1300, some nice people wrote something along these lines: >ISD chips are very likely your best choice unless you want large >volume and fixed messages. thanks a lot for the quick help. i've had a closer look at their data sheets in the meanwhile, and if there are no "hidden features" (like the one that has been mentioned these days by someone here on the list), they sure look easy enough to use. ge

Has anybody done any work with ISD's offerings? I have a sample 5 minute 4000 series chipcorder product I will need to integrate into a project, and could use any available sample code or project application example info. Thanks in advance, please reply to .....billkichKILLspam@spam@nbn.net WF AUTOMACAO wrote: {Quote hidden}> > Gerhard Fiedler wrote: > > > > i've read various messages here from people messing with voice chips. i've > > got an application where i need to play 20 messages of 4sec each (recording > > is done off-site, and OTP memory would be fine). the customer talked about > > individual voice chips, i'm not sure whether this is a requirement > > (individually exchangeable) or whether i could use a bigger chip with > > addressable messages for all 20 (i'll find that out tomorrow). > > > > in any case, i'd be grateful for some pointers to manufacturers of > > easy-to-use voice chips. i saw the ISD chipcorder chips, and they seem to > > be fine, but since they have the recording part on-chip and i don't need > > that, i thought there might be some cheaper chips out there which only do > > the playing (which also might be safer against data loss). there would be > > no problem if some special programming equipment was necessary. > > > > TIA, > > ge > > See http://www.furb.rct-sc.br/~mw/isd_i.html