[sdiy] Sigma Delta DSP

[wayfar]

> At 05:45 PM 3/1/2006 +0100, Dave Krooshof - dendriet.nl wrote:
>
>> Hi List,
>>
>> I was wondering weather anyone here has knowledge about
>> sigma delta processing. We allready bought a AD convertor,
>> and we are interested in using the bitstream output directly.
>> Converting back to analog is nothing more then a low pass, so
>> that is easy.
>

I thought one of the major arguments *for* using that format over PCM 
was in that you *don't* need a lowpass, the format it self somewhat 
provides anti-aliasing.