15 Jul
2010
15 Jul
'10
1:15 a.m.
On Thu, 2010-07-15 at 00:46 +0200, fons(a)kokkinizita.net wrote:
On Wed, Jul 14, 2010 at 11:54:35PM +0200, Ralf Mardorf
wrote:
I know very gifted musicians who do like me and they always 'preach'
that I should stop using modern computers and I don't know much averaged
people. So the listeners in my flat for sure would be able to hear even
failure that I'm unable to hear.
I could record audio for kick, snare, hi hat and
bass one after the
other and mix it to one rhythm group and additionally I could record all
instruments at the same time and send the recordings to you and you
could do the same by yourself.
That is not a valid test. If the soft instrument that generates
these sounds aligns MIDI events to Jack periods, and you are using
a period size of 1024 as you say you are, it proves nothing at all.
Apart from that, it remains to be seen if *real* timing errors of
+/- 2 ms do 'destroy the groove'. To test this, make the same
recording
- without jitter,
- with 1 ms jitter,
- with 2 ms jitter,
- with 3 ms jitter.
and check if listeners are able to identify which is which,
or at least to put them into order. What you have been doing so far is compare an
'exact' version
with one that has some unkown and uncontrolled errors. You could
'prove' anything you want in that way.
You are just jumping to conclusions and making gratituous
generalisations.
Ciao,
No doubt about it, I'm speculating.
Earlier I send somebody an email off-list (see below), anyway, even when
playing live by using ALSA MIDI just thru, there is latency, with or
without jitter, but off course without negative delay ;).
My speculations might be wrong. But there are audible issues and I'm
sure that even non-musicians are able to hear it, unfortunately I'm some
kind of freak, all the people I could ask to listen to this issues are
highly gifted musicians, unfortunately the averaged German soccer, radio
prime time, heavy rotation, music listening audience is beyond the
people that I know.
Anyway. this crowd shouldn't be the benchmark for good music. Am I
wrong?
I don't no what's bad, but something is absolutely bad for hw MIDI.
-------- Forwarded Message --------
From: Ralf Mardorf
To: [snip]
Subject: [off-list]
Date: Thu, 15 Jul 2010 00:22:17 +0200
ASAP, I guess later today (here it's 00:15 o'clock), I'll run jackd,
resp. the alsa driver with 4096frames/period at 44.1KHz and record the
external synth to the left and the virtual synth to the right channel.
This should give a clear result, regarding to the 'event happened,
before it was triggert' issue. I guess even for quantum physics such
phenomena are caused because of technical issues.
:D
Cheers!
Ralf