🚀 go-pugleaf

In article <1993Jan25.214046.9622@hplabsz.hpl.hp.com> S.
Sivaramakrishnan, sivaram@hplabsz.hpl.hp.com writes:

>I am looking for a cheap method to record and playback about 15 seconds
of sound on a chip.
>
>The whole setup, I GUESS, will comprise:
>1) A microphone
>2) An A/D converter that digitizes the sound
>3) A unit that accepts the commands "record" and "playback"
>4) Some memory that holds the sound image
>5) A D/A converter to generate an analog signal
>6) A speaker for playback
>7) Power supply
>
>Does a chip that has most/all the features except the power supply exist?
>
Items 1 and 6 (&7 of course) are a bit tricky, but most of the rest is
achieved by a whole bunch of chips from OKI. Some examples :
MSM6308 : A/D,D/A + control circuitry for a 256k DRAM
MSM6309 : A/D,D/A + control circuitry for a 256k SRAM
MSM6322 : All the above + pitch change as well !
There are dozens of them , of varying capabilities
You may also consider the ISD analog storage devices
OKI : 1-800-TEAM-OKI (lotsa colour glossies)
cheers
Mike