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Article #16644

Re: Recording sound on chip

#16644
From: Gary Morton
Date: Wed, 27 Jan 1993 13:18
35 lines
2183 bytes
In article <1993Jan25.214046.9622@hplabsz.hpl.hp.com> sivaram@hplabsz.hpl.hp.com (S. Sivaramakrishnan) 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?
>
Maplin Electronics (in the UK) sell a chip which has all the features (just
about) that you describe. You need to add a 256k byte static ram to store the
digitised data. A project based around this chip has appeared in Electronics
"the Maplin Magazine", and a kit of all parts including PCB is available
from them. They give an example circuit in their catalogue anyway. I keep
my catalogue at home, so I don't have a price ($20-$30 I guess), or their
phone number (it was posted recently). Mail me if you would like further
details.

I am amazed the number of times people ask questions about the availability
of parts, and the solution is available from Maplin. Has anyfrom from outside
the UK ordered from Maplin, and if so what was their service like ?

BTW - no connection - just a satified customer.

--Gary
+---------------------------( Gary Morton )-----------------------------+
|Disclaimer: The opinions above are my own personal views etc.          |
|Inmos Ltd, 1000 Aztec West, Bristol, UK         Email : gary@inmos.com |
+-----------------------( +44 454 616616 X526 )-------------------------+
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Path: arc1-ca.pugleaf.net!sparky!uunet!inmos!inmos.co.uk!usenet
References: <1993Jan25.214046.9622@hplabsz.hpl.hp.com>

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Newsgroups: sci.electronics
Path: arc1-ca.pugleaf.net!sparky!uunet!inmos!inmos.co.uk!usenet
From: gary@mario.inmos.co.uk (Gary Morton)
Subject: Re: Recording sound on chip
Message-ID: <1993Jan27.131806.13886@inmos.co.uk>
Sender: usenet@inmos.co.uk (The Usenet News System)
Reply-To: gary@inmos.co.uk (Gary Morton)
Organization: INMOS Limited, Bristol, UK.
References: <1993Jan25.214046.9622@hplabsz.hpl.hp.com>
Date: Wed, 27 Jan 1993 13:18:06 GMT
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