11 Apr
2008
11 Apr
'08
1:25 p.m.
Hello,
I'm experiencing some tonality problems with qsynth and jack.
I use them on a Debian SID, with non-realtime kernel.
I use both rosegarden and nted, and both package give me the same
results.
The problem is very simple : all the "melodic" instrument are played
half a tone upper than they should (a A sound like a A#).
I thought the problem was coming from my non-realtime kernel, but a
friend of mine has the same problem on an Ubuntu Studio distribution
with a realtime kernel and realtime enabled in jack.
The problem doesn't come from the soundfonts we use (there are many,
Crisi General 1.8, Super Evandro Drummer, and others...), as another
friend of mine, running also with Ubuntu Studio and the same settings
than the previous one (buffers sizes, etc.) doesn't have the problem.
I don't know what from it could come.
Any idea?
Thanks a lot.
--
==============================
ORL /// AMMD Booking (www.ammd.net)
° Sebkha-Chott (www.sebkhachott.net - Ohreland [FR]) - next touring period: 04-06/2008
° Unexpect (www.unexpect.com - Montréal [CA]) - Europe tour w/ Sebkha-Chott period:
09-12/2008
° La Muette (www.myspace.com/muette - Paris [FR]) - next touring period: 05/2008
(Bretagne)
° Mel-P (www.mel-p.net - Le Mans [FR]) - next touring period: 09/2008
Phone: +33 (0)95 234 72 48
11 Apr
11 Apr
1:36 p.m.
Maybe it has something to do with the sample rate jack is running at
44100 or 48000?
James
On Fri, Apr 11, 2008 at 4:25 PM, Aurelien <orl(a)ammd.net> wrote:
Hello,
I'm experiencing some tonality problems with qsynth and jack.
I use them on a Debian SID, with non-realtime kernel.
I use both rosegarden and nted, and both package give me the same
results.
The problem is very simple : all the "melodic" instrument are played
half a tone upper than they should (a A sound like a A#).
I thought the problem was coming from my non-realtime kernel, but a
friend of mine has the same problem on an Ubuntu Studio distribution
with a realtime kernel and realtime enabled in jack.
The problem doesn't come from the soundfonts we use (there are many,
Crisi General 1.8, Super Evandro Drummer, and others...), as another
friend of mine, running also with Ubuntu Studio and the same settings
than the previous one (buffers sizes, etc.) doesn't have the problem.
I don't know what from it could come.
Any idea?
Thanks a lot.
--
==============================
ORL /// AMMD Booking (www.ammd.net)
° Sebkha-Chott (www.sebkhachott.net - Ohreland [FR]) - next touring period:
04-06/2008
° Unexpect (www.unexpect.com - Montréal [CA]) - Europe tour w/ Sebkha-Chott
period: 09-12/2008
° La Muette (www.myspace.com/muette - Paris [FR]) - next touring period: 05/2008
(Bretagne)
° Mel-P (www.mel-p.net - Le Mans [FR]) - next touring period: 09/2008
Phone: +33 (0)95 234 72 48
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user(a)lists.linuxaudio.org
http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
1:58 p.m.
Most probably. This is what's missed most of the time if the user doesn't
understand the process of up/downsampling. During sequencing the audio files
are upsampled live if the project is at a higher rate, and depending on
hardware the results vary significantly (you can notice the waveform
becoming narrower). Moreover, each application has its own settings for
sample rate and they should all be reflecting the same numbers.
On 11/04/2008, James Stone <jamesmstone(a)gmail.com> wrote:
Maybe it has something to do with the sample rate jack is running at
44100 or 48000?
James
On Fri, Apr 11, 2008 at 4:25 PM, Aurelien <orl(a)ammd.net> wrote:
Hello,
I'm experiencing some tonality problems with qsynth and jack.
I use them on a Debian SID, with non-realtime kernel.
I use both rosegarden and nted, and both package give me the same
results.
The problem is very simple : all the "melodic" instrument are played
half a tone upper than they should (a A sound like a A#).
I thought the problem was coming from my non-realtime kernel, but a
friend of mine has the same problem on an Ubuntu Studio distribution
with a realtime kernel and realtime enabled in jack.
The problem doesn't come from the soundfonts we use (there are many,
Crisi General 1.8, Super Evandro Drummer, and others...), as another
friend of mine, running also with Ubuntu Studio and the same settings
than the previous one (buffers sizes, etc.) doesn't have the problem.
I don't know what from it could come.
Any idea?
Thanks a lot.
--
==============================
ORL /// AMMD Booking (www.ammd.net)
° Sebkha-Chott (www.sebkhachott.net - Ohreland [FR]) - next
touring
period: 04-06/2008
° Unexpect (www.unexpect.com - Montréal
[CA]) - Europe tour w/
Sebkha-Chott period: 09-12/2008
° La Muette (www.myspace.com/muette -
Paris [FR]) - next touring
period: 05/2008 (Bretagne)
° Mel-P (www.mel-p.net - Le Mans [FR]) -
next touring period:
09/2008
Phone: +33 (0)95 234 72 48
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user(a)lists.linuxaudio.org
http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user(a)lists.linuxaudio.org
http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
13 Apr
13 Apr
2:39 p.m.
Well, I didn't precise it, as I thought it was kinda logical things, but
both samplerates are set toe the same values.
By the way, I'm gonna try with the "forced" option that Emmanuel adviced
me.
Thanks to you all.
On Fri, Apr 11, 2008 at 11:58:21PM +0800, Ray Rashif wrote :
Most probably. This is what's missed most of the
time if the user doesn't
understand the process of up/downsampling. During sequencing the audio files
are upsampled live if the project is at a higher rate, and depending on
hardware the results vary significantly (you can notice the waveform
becoming narrower). Moreover, each application has its own settings for
sample rate and they should all be reflecting the same numbers.
On 11/04/2008, James Stone <jamesmstone(a)gmail.com> wrote:
>
> Maybe it has something to do with the sample rate jack is running at
> 44100 or 48000?
>
>
> James
>
>
> On Fri, Apr 11, 2008 at 4:25 PM, Aurelien <orl(a)ammd.net> wrote:
> > Hello,
> >
> > I'm experiencing some tonality problems with qsynth and jack.
> > I use them on a Debian SID, with non-realtime kernel.
> > I use both rosegarden and nted, and both package give me the same
> > results.
> >
> > The problem is very simple : all the "melodic" instrument are
played
> > half a tone upper than they should (a A sound like a A#).
> > I thought the problem was coming from my non-realtime kernel, but a
> > friend of mine has the same problem on an Ubuntu Studio distribution
> > with a realtime kernel and realtime enabled in jack.
> > The problem doesn't come from the soundfonts we use (there are many,
> > Crisi General 1.8, Super Evandro Drummer, and others...), as another
> > friend of mine, running also with Ubuntu Studio and the same settings
> > than the previous one (buffers sizes, etc.) doesn't have the problem.
> >
> > I don't know what from it could come.
> >
> > Any idea?
> >
> > Thanks a lot.
> >
> > --
> > ==============================
> > ORL /// AMMD Booking (www.ammd.net)
> > ° Sebkha-Chott (www.sebkhachott.net - Ohreland [FR]) - next
> touring period: 04-06/2008
> > ° Unexpect (www.unexpect.com - Montréal [CA]) - Europe tour w/
> Sebkha-Chott period: 09-12/2008
> > ° La Muette (www.myspace.com/muette - Paris [FR]) - next touring
> period: 05/2008 (Bretagne)
> > ° Mel-P (www.mel-p.net - Le Mans [FR]) - next touring period:
> 09/2008
> > Phone: +33 (0)95 234 72 48
> > _______________________________________________
> > Linux-audio-user mailing list
> > Linux-audio-user(a)lists.linuxaudio.org
> > http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
> >
> _______________________________________________
> Linux-audio-user mailing list
> Linux-audio-user(a)lists.linuxaudio.org
> http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
>
--
==============================
ORL /// AMMD Booking (www.ammd.net)
° Sebkha-Chott (www.sebkhachott.net - Ohreland [FR]) - next touring period: 04-06/2008
° Unexpect (www.unexpect.com - Montréal [CA]) - Europe tour w/ Sebkha-Chott period:
09-12/2008
° La Muette (www.myspace.com/muette - Paris [FR]) - next touring period: 05/2008
(Bretagne)
° Mel-P (www.mel-p.net - Le Mans [FR]) - next touring period: 09/2008
Phone: +33 (0)95 234 72 48
11 Apr
11 Apr
1:48 p.m.
2008/4/11, Aurelien <orl(a)ammd.net>et>:
The problem is very simple : all the "melodic" instrument are played
half a tone upper than they should (a A sound like a A#).
I have had the same problem with fluidsynth for quit some time.
Then I found out, that I would have to explicitly tell fluidsynth the
samplerate (with the -r option)
(frame-/samplerate should be the same with jackd and fluidsynth)
This should be mentioned in the man page or webpage...
example:
fluidsynth -ajack -g0.9 -malsa_seq -j -r48000 -z128 -c3 soundfont.sf2
1:59 p.m.
On Fri, Apr 11, 2008 at 05:25:53PM +0200, Aurelien wrote:
The problem is very simple : all the
"melodic" instrument are played
half a tone upper than they should (a A sound like a A#).
Sounds like you are using 44.1kHz samples on a 48 Khz system.
--
FA
Laboratorio di Acustica ed Elettroacustica
Parma, Italia
Lascia la spina, cogli la rosa.
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linux-audio-user@lists.linuxaudio.org
5 comments
5 participants
participants (5)
-
Aurelien -
Emanuel Rumpf -
Fons Adriaensen -
James Stone -
Ray Rashif