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(TChelvam) wrote:

(Nousaine) wrote in message
...
Codifus wrote:

But then, that would depend on the quality of the measurment. In
phone
conversation, we aren't looking for audiophile quality, so any jitter
they find on the phone must be extreme. The jitter in audio is probably
high enough to be bothersome to those "golden ears" but more than
acceptable to phone conversations.

CD

Even if that were to be true the original claim was

Probably, prior to 1985, we do not know what a jitter was.

Which is patently untrue. Also note that Mr Pierce made reference to a bbc
paper published in 1974.

Well, when I said "we' I was refering to the digital audio world in
particular to CD sound reproduction. When CD player manufacturer and
the audio engineer paid significant attention to address jitter? 1974,
1985 or early 1990?

Well they didn't have to; because jitter is not now, nor has it ever been, a
"problem" with digital recording and playback.

But back to the original posting----- there was never a "time" when jitter was
not known or hadn't addressed in an engineering sense.