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Subject: Re: DSP 2's complement vs straight binary
X-Newsreader: WinVN 0.99.12 (x86 32bit)
Date: Fri, 18 Oct 2002 15:13:01 GMT
NNTP-Posting-Date: Fri, 18 Oct 2002 11:13:01 EDT
Organization: Cox Communications
In article , email@example.com says...
> Like I was telling John Larkin simply inverting the MSB
> does not convert straight binary to 2's complement. Here
> is a website that explains 2's complement.
> But you are right, there is hardwire solution for the
> conversion, but I hate adding extra circuitry to solve a
> problem like this. In software it looks like it would
> take a few executions for the conversion, but when we're
> talking about megabytes of samples it does add up.
> P.S. I'm looking for a 8 bit sampler.
How about using a lookup table? Just one operation
immediately after sampling, and then the samples are stored
in the desired format.
Your mother need never know that you used a lookup table.
None of us will tell.
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