[sdiy] jitter analysis

[Fredrik Carlqvist]

> any system that is band limited

I agree and I follow you. But do we know the band limit of the human ear? It
doesn't have to be the same as the hearing limit.

The ear is a hardware (flesh-ware?) spectrum analyzer. The sensor part is
limited to say 18kHz. But the resolution depends on the density of sensory
hairs on the basilar membrane, which contains the hearing neurons. 

> My assumption is that the noise component which is interesting here
> is very low in frequency, < 10Hz.
> After all, we do not percieve those waves as noisy, but drifting.

My assumption is the opposite; I think it is the period to period jitter
that makes the difference. My thought is that the jitter widens the peak on
the sensory hairs on the basilar membrane, thereby making the sound fuller.


Fredrik C