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Science Forum Index » Electronics Forum » Sound Recording ChipSet?
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| Jim Douglas |
 Posted: Wed Nov 15, 2006 8:02 pm |
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I want to make a small device that will record basic sound snippets, for
example, depending on the size of the memory, 100-500 3-5 seconds sound
snippets. It needs to be real small, possibly the size of a matchbook.
Any ideas on where to look, I have googled for sound chips and found
way tooo much. I am thinking there must be some type of chip that I
could i/f with memory to record and store the data, no playback in the
device as that would be done in the computer. It would need to be able
to record in a format that could be played on a PC, quality should be
good but not CD/FM quality.
Thanks!
Jim Douglas |
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| Jamie |
| Posted: Wed Nov 15, 2006 9:52 pm |
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Jim Douglas wrote:
Quote: I want to make a small device that will record basic sound snippets, for
example, depending on the size of the memory, 100-500 3-5 seconds sound
snippets. It needs to be real small, possibly the size of a matchbook.
Any ideas on where to look, I have googled for sound chips and found
way tooo much. I am thinking there must be some type of chip that I
could i/f with memory to record and store the data, no playback in the
device as that would be done in the computer. It would need to be able
to record in a format that could be played on a PC, quality should be
good but not CD/FM quality.
Thanks!
Jim Douglas
Start looking at the AVR and PIC's that have lots of ram in it..
well , enough for your short burst.
get the processor that employs an ADC input, you can use one of the
output in PWM to regenerate it. you would need to get one of those
SMT amplified ceramic mic's to drive the ADC input.
pick through the chips to find one that will operate on lower voltage
so that you can use a 3 volt lithium cell etc..
--
"I'm never wrong, once i thought i was, but was mistaken"
Real Programmers Do things like this.
http://webpages.charter.net/jamie_5 |
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| Eeyore |
| Posted: Wed Nov 15, 2006 11:14 pm |
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Jim Douglas wrote:
Quote: I want to make a small device that will record basic sound snippets, for
example, depending on the size of the memory, 100-500 3-5 seconds sound
snippets. It needs to be real small, possibly the size of a matchbook.
Holtek do this stuff IIRC.
Graham |
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| martin griffith |
| Posted: Thu Nov 16, 2006 6:25 am |
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On Thu, 16 Nov 2006 00:02:35 GMT, in sci.electronics.design Jim
Douglas <james.douglas@genesis-software.com> wrote:
Quote: I want to make a small device that will record basic sound snippets, for
example, depending on the size of the memory, 100-500 3-5 seconds sound
snippets. It needs to be real small, possibly the size of a matchbook.
Any ideas on where to look, I have googled for sound chips and found
way tooo much. I am thinking there must be some type of chip that I
could i/f with memory to record and store the data, no playback in the
device as that would be done in the computer. It would need to be able
to record in a format that could be played on a PC, quality should be
good but not CD/FM quality.
Thanks!
Jim Douglas
Use The Google for yamp (yet another mp3 player)
and check out avrfreaks, lot of stuff on mp3 there
How are you going to control it, random or in sequence, ie, what is
the interface going to be?
martin |
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