"Nick Gorham" wrote


If you have gone from a CD and taken it direct to mp3, then you won't add
jitter (or remove any), aduming it was all digital, and wasn't recorded
from the analog signal from a CD source.

As to if its read into ram and then pushed at the dac in the sound card,
thats down to the software, and the avalable ram. I suspect it will read
from the disk as required and convert on the fly, but I don't know for
sure. I could take a look at the source for mplayer and see what that
does.

Jitter will be introduced by the dac, it doesn't exist as such in the
digital domain, only when the samples are converted to analog.

If you recorded from a LP, then you will have introduced jitter then.


OK, thanks for that. I am creating MP3s from both LP and CD and, so far,
haven't heard anything to cause me any concern. There is no soundcard
(motherboard sound only) and I only use WMP9 to play them back (valve amp,
of course) and they sound perfectly fine to me. I sometimes think they sound
a little bit better played in Sound Forge though???