Post by thread:Off Topic

Cary Smith wrote: > > Hello, > I am developing a voive record and play back system utilizing a > pick. I need to find a voice chip that is capable of recording and play > back. Any suggestions. > > Cary Smith Cary, Try ISD. They are specialise on voice recording/playback chips. I'm not sure about their web but try : WWW.ISD.COM Good luck, Nikos Papaioannou Cyprus

On Thu, 17 Jul 1997 09:52:53 -0400 Cary Smith <spam_OUTcasmithTakeThisOuTLYNX.DAC.NEU.EDU> writes: >Hello, > I am developing a voive record and play back system utilizing >a >pick. I need to find a voice chip that is capable of recording and >play >back. Any suggestions. ISD is the major (perhaps the only) producer of voicestore chips which use analog EEPROM technology. They work well and are easy to control with a PIC. Data in pdf form at http://www.isd.com, chips are available from Digi-Key.

Take a look at the ISD parts. They are widely available and interface well with PIC processors. I believe the "voice it" product uses their parts and a PIC for control. At 09:52 AM 7/17/97 -0400, you wrote: >Hello, > I am developing a voive record and play back system utilizing a >pick. I need to find a voice chip that is capable of recording and play >back. Any suggestions. > >Cary Smith > > Larry G. Nelson Sr. .....L.NelsonKILLspam@spam@ieee.org http://www.ultranet.com/~nr

Try OKIdata semiconductors at http://www.okisemi.com/public/nt/Home.html They have a number of voice chips as well as some development boards. Time is up to 2048 seconds. Good Luck Dave Mumert SDMKILLspamsoftoptions.com

Hi Cary Check out ISD, Information Storage Devices. They have a great range of "chip recorders" with 16-20 second capacity and very easy to interface with minimal circuitry. Funny thing is, I picked up a 1416 of theirs just yesterday for a project! Regards, Ian On Thu, 17 Jul 1997, Cary Smith wrote: > Hello, > I am developing a voive record and play back system utilizing a > pick. I need to find a voice chip that is capable of recording and play > back. Any suggestions. > > Cary Smith >

On Saturday, July 19, 1997 6:29 AM, pic microcontroller discussion list On Behalf Of Ian Raymond Douglas wrote: > Hi Cary > Check out ISD, Information Storage Devices. They have a great range > of "chip recorders" with 16-20 second capacity and very easy to interface > with minimal circuitry. Funny thing is, I picked up a 1416 of theirs just > yesterday for a project! > Regards, Ian > On Thu, 17 Jul 1997, Cary Smith wrote: > > > Hello, > > I am developing a voive record and play back system utilizing a > > pick. I need to find a voice chip that is capable of recording and play > > back. Any suggestions. > > > > Cary Smith > > > I just gotta ask -- If you're going to have a PIC in the mix, why not have the device read a cheap memory and DAC out the waveform? I guess we're not going to have a full six stage, twelve multiply and accumulate frequency domain decode, but it seems like some capacity is being wasted. Tom

I just gotta ask -- If you're going to have a PIC in the mix, why not have the device read a cheap memory and DAC out the waveform? I guess we're not going to have a full six stage, twelve multiply and accumulate frequency domain decode, but it seems like some capacity is being wasted. I did just see an ad for an Atmel 4Mbit Serial Flash device... BillW

At 02:22 PM 7/20/97 PDT, you wrote: > I just gotta ask -- If you're going to have a PIC in the mix, why not have > the device read a cheap memory and DAC out the waveform? I guess we're not > going to have a full six stage, twelve multiply and accumulate frequency > domain decode, but it seems like some capacity is being wasted. > >I did just see an ad for an Atmel 4Mbit Serial Flash device... The largest *serial* ones I can find (from ATmel) are only 64K bits, which are somewhat smaller than 4Mb, there are a few flash memories - the part numbers suggest parallel. Which part numbers are you referring to BillW ? Rgds Mike Perth, Western Australia

>I did just see an ad for an Atmel 4Mbit Serial Flash device... The largest *serial* ones I can find (from ATmel) are only 64K bits, which are somewhat smaller than 4Mb, there are a few flash memories - the part numbers suggest parallel. Which part numbers are you referring to BillW ? The 64k to 256kbit serial devices are (byte writable) EEPROMS. Atmel also has a line of "real" flash (sector writable), and I guess they put one of their serial interfaces on them. Apparently it's been something of a well-kept secret (!) - the 4Mbit devices were introduced in May, and this recent ad was the first I've heard of them. See http://www.atmel.com/atmel/news/19970714.html for the recent announcement of 2 and 8Mbit "Serial Dataflash" devices - the 4Mb parts were the ones introduced in May (if I'm reading the press release right.) BillW