John Gilmore wrote: > > My first thought is to just increase the sample rate and effective > bits per sample of the audio processing hardware, and increase the > number of channels so that ordinary stereo audio can happen > simultaneously with analog I/O. I think it's a crime that cheap > analog I/O chips top out at 200 kilosamples per second. > I think that adding a fast, complex, sampler capable of doing many megasamples, with DMA support, etc, would be a worthy goal. A little anti-alias filtering and some digitally-controllable gain (70dB or more) in front of the samplers, and you have yourself a nice little HF receiver. I wonder if you could suck the entire 30Mhz of HF spectrum into the Geode in one gulp if there's adequate DMA support, etc?
If not, you'd probably like some hardware-based DDCs and decimators, etc.
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