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'[EE]: Digital voice recording & playback?'
2002\01\10@235813 by Steve Ruse

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What are the best chips out there for this? I only need a max of about 10 seconds of quality record & playback. Also, is there an easy way to do this with a PIC (probably not, just thought I'd check)?

Thanks!

Steve Ruse

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2002\01\11@022509 by Ian Hynes

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Hi Steve
Do a search for ISD. They make the "chipcorder" series.
URL is http://www.isd.com   *I think*?
Regards - Ian

Original message from: Steve Ruse <.....steveKILLspamspam@spam@WOTELECTRONICS.COM>
>
>What are the best chips out there for this? I only need a max of
about 10 seconds of quality record & playback. Also, is there an easy
way to do this with a PIC (probably not, just thought I'd check)?
>
>Thanks!
>
>Steve Ruse



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2002\01\11@095052 by Edward Rupp

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Steve,

RadioShack sells a 20 second Recording Module, cost only $10.
Part # 276-1323 or bar code 40293 15199.  It's a simple board with
2 push buttons, record and play.  I bought one with the plan to
solder a couple of wires on some pads that go to the play button.
Then I could have a pic trigger the recording.

Edward Rupp



On 11 Jan 02, at 10:54, Steve Ruse wrote:

{Quote hidden}

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2002\01\11@123217 by Harold M Hallikainen

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I agree the ISD chips are great! I used the ISD4004-08M in the
BrailleMaster
(http://www.dovesystems.com/BuildPage.php3?page=braille).
       With only 10 seconds of speech, you MIGHT be able to get away with a PIC
with a bunch of ROM (18c252?) and PWM output. In the BrailleMaster, I've
got 8 minutes of speech. The ISD chip was definitely the way to go
there...

Harold

On Fri, 11 Jan 2002 17:20:31 +1000 Ian Hynes <ian.hynesspamspam_OUTSTART.COM.AU>
writes:
{Quote hidden}

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2002\01\11@215958 by Russell McMahon

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> I agree the ISD chips are great! I used the ISD4004-08M in the
> BrailleMaster
> (http://www.dovesystems.com/BuildPage.php3?page=braille).
>         With only 10 seconds of speech, you MIGHT be able to get away with
a PIC
> with a bunch of ROM (18c252?) and PWM output. In the BrailleMaster, I've
> got 8 minutes of speech. The ISD chip was definitely the way to go
> there...


Depends a lot on what he means by "quality speech". For most applications
the ISD is very very acceptable. Better than AM radio or telephone quality.
If you want "FM radio" quality the ISD does not have adequate bandwidth.

I make disability communication devices with older ISD chips (2590) running
at the "middle" speech quality and many people have commented on the good
quality of the speech compared to other products in this market.






       Russell McMahon

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