[sdiy] Moogey jitter
Kenneth Elhardt
elhardt at worldnet.att.net
Sun Apr 16 04:44:50 CEST 2006
Ian Fritz writes:
>>He thinks he's "scientific" but he doesn't tell us much about what he
measured. What was the frequency? What is the time scale on the scope
shot? Does the jitter depend on frequency? Isn't VCR digital? What's the
spectrum of the noise? And of course you can't ever question anything he
does or says.
If someone would be willing to post a short *.wav clip of one of these
moogey waveforms, it should be quite simple to analyze the spectrum.<<
The link below is a magical moogy sawtooth wave spliced into a cold,
perfect, digitally stable, un-antialiased sawtooth generated in CoodEdit.
It switches back and forth several times. Remember, this is the most
extreme difference in the world theoretically. But there is virtually no
audible difference. Note, I have already gone through the work of measuring
jitter in a moog waveform and posted the results on AH along time ago. I
did it down to about 1/32 of a sample of resolution. Since the modern
Technosaurus oscillators had three times the amount of jitter than the Moog
did, that must mean the Technosaurus sound more Moogy than the Moog. I
don't suppose Keven mentioned that. Measuring jitter means nothing unless
one compares it to other analogs.
http://home.att.net/~elhardt5/Sawtooths.wav
Jason Proctor writes:
>>oh no let's not get into that again. search the AH archives for the
endless flamewars where kevin claims Moog magic this and Moog magic
that and ken then posts debunking information and it just goes round
and round and round.<<
When you're dealing with somebody so unreasonable that he thinks speculation
and myths hold up better than actual measurements, what are you going to do.
He's never admitted to even listening to my audio files, and anybody can do
their own jitter measurements from the file above as long as they have a
sound program that uses calculus to interpolate pitch-downed waveforms for
sub-sample measurements. It's all right there in the open. I can't believe
he keeps beating this dead horse.
-Elhardt
More information about the Synth-diy
mailing list