Article View: sci.electronics
Article #16644Re: Recording sound on chip
From: Gary Morton
Date: Wed, 27 Jan 1993 13:18
Date: Wed, 27 Jan 1993 13:18
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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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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 Lines: 35