[sdiy] Aliasing (or not) on Monowave

[Aaron Lanterman]

On Mon, 12 Jun 2006, Paul Maddox wrote:

>> That said, a 6kHz sawtooth generated at a 50MHz sample rate will have 
>> worst-case aliases in the -78dB range. Those will be barely audible in a 
>> mix of any complexity.
>
> spooky, the monowave uses 8bit DACs, and as I say, at 3.5Khz I can't hear 
> *any* aliasing on the raw waveforms (out of DAC, into mixer/PA)..
>
> I know the math says it should sound horrible, but it didn't :-)

Paul - on the monowave, do you have a constant-rate DAC, or are you 
varying the DAC rate? If the latter, your aliases will be landing on top 
of existing harmonics, so you won't get inharmonics and it won't sound 
icky.

- Aaron