Harmonics question

[Christian Oncken]

Wow... great minds think alike, I guess.  :)

I recently got ahold of an 8-bit ADC (adc0809ccn) and an 8-bit DAC
(dac0800lcn) for this purpose.  I originally wanted to just experiment with
the 8-bit AD/DA conversion, to see if it introduced any interesting
distortion.  I also wanted to try reducing the resolution to see what
happens to the sound.  Flipping specific bits in response to other bit
combinations might also be neat.  Any other ideas?  Has anyone here
experimented with this?

Christian Oncken




> Another trick that can be interesting is by quantising (A/D) a signal
> and then start doing tricks with the bits, like inverting a bit,
> droping a bit (in the middle), having a bit inverting another (XOR).
> The output of this bit manipulation is then D/A converted. One could
> possibly mix this with the original signal. A friend of mine
> experienced "interesting" phenomenes of digital distorsions when the
> old 3M digital 32-channel tapemachnies lost a bit every now and
> then...
> 
> Cheers,
> Magnus