8 Apr
2012
8 Apr
'12
7:47 p.m.
On Sun, 8 Apr 2012 15:23:50 +0200
David Adler <david.jo.adler(a)gmail.com> wrote:
On Sun, Apr 8, 2012 at 10:40 AM, Fons Adriaensen
wrote:
I've just done a quick and dirty test of this with quite interesting results.
For a short while I have two files on my website:
http://www.musically.me.uk/Attack_Test_0mS.mp3
and
http://www.musically.me.uk/Attack_Test_15mS.mp3
These were recorded using yoshimi and the default AddSynth sound simply
triggered with the virtual keyboard. Unfortunately, I don't have time to cross
check with subSynth at the moment :(
If you look at them with audacity and at a very stretched scale, you will see
that they all start with a negative going half-cycle and there is absolutely no
offset, and no significant distortion. Therefore the seeming pulse sound is a
purely psycho-accustic effect.
The 15ms attack ones are more interesting as they show a nice increasing
amplitude at low pitches (which sounds nice and smooth) but that rapidly
dissapears as you go up in pitch. This I would suggest is a bug in the
implementation - apparently true of both zyn and yoshi. 15mS attach should
*always* be 15mS.
I don't usually cross-post but I think this will be of significant interest on
the yoshimi list.
--
Will J Godfrey
http://www.musically.me.uk
Say you have a poem and I have a tune.
Exchange them and we can both have a poem, a tune, and a song.
On Sat, Apr 07, 2012 at 11:57:57PM +0200, David
Adler wrote:
I don't here such a 'ping' on all patches, but I do recall having
had hard times trying to get a smooth sounding attack, despite
sufficiently long attack times.
When starting yosh without any instrument/parameters, there
are clicks/plops/pings on note on. Not surprising of course,
due to the short default amplitude-attack times and near sine
default waveforms.
What I do notice is that for SUBsynth, increasing attack time to
a value of ~10 is sufficient to remove note-on clicks for even
moderately low frequencies, as should be expected if the unit
is [ms]. For ADDsynth and PADsynth in contrast, a value of >35
just barely silences the somethat 'plop'-like attac sound.
The same for release times.
Naively asking my ears, I'd say those plops are not tied to the
attack ramp of the env, the ramp just decreases the volume of
some plop, irrespective of the note frequency.
I find this not to be audible (or perceived as part of the
characteristic attack spectrum) for most patches with
significant HF content.
This is no different in Zynaddsubfx.
Not sure about any repeat echo.
best,
d My experience with Yoshimi (under Linux) is
excellent,
Zynaddsubfx tended to produce dropouts/clicks and
sometimes exited from Jack, back when I used it.
Another beginner's problem: whatever instrument I select,
there always seems to be a second one active: it produces
a short 'ping' with a repeat echo on it, and seems completely
unrelated to the patch I actually want. And I can't get rid
of it...