26 Feb
2005
26 Feb
'05
9:47 a.m.
Hi,
I'm using ardour to record and I have recorded my songs at 44100 until
now. Now I want to switch to 48000.
What's the easiest way (always within the best way to do it) to convert
my sessions to 48000?
I would like something automatic like running a script before starting
an ardour session at 44100 or clicking some option at ardour to import it.
I have googled this issue and I found:
http://sr-convert.sourceforge.net/
but it's not debian-packaged yet and I'm too lazy now...
maybe ecasound? but I'm afraid it doesn't consider so much things as
sr-convert...
26 Feb
26 Feb
12:04 p.m.
--- MarC <marc_contrib(a)ramonvinyes.es> wrote:
Hi,
I'm using ardour to record and I have recorded my
songs at 44100 until
now. Now I want to switch to 48000.
What's the easiest way (always within the best way
to do it) to convert
my sessions to 48000?
I would like something automatic like running a
script before starting
an ardour session at 44100 or clicking some option
at ardour to import it.
I have googled this issue and I found:
http://sr-convert.sourceforge.net/
I'm curious why you want to switch. The only practicle
reason I can think of is that your hardware runs at
48000 and a conversion has to take place on the fly so
you're trying to improve computational effiency.
You've already got libsndfile installed which includes
sndfile-resample. I'm not sure if you can convert the
rates, start jack at the new rate and open the Ardour
session without having Ardour complain. In theory it
makes sense that you can because Ardour shouldn't care
about samplerate. It should look at jackd for the
currently running rate and examine the files to see
what rate they are. If they are the same, open session
and run. I guess you'll need to test that.
ron
but it's not debian-packaged yet and I'm too
lazy
now...
maybe ecasound? but I'm afraid it doesn't consider
so much things as
sr-convert...
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1:49 p.m.
En/na R Parker ha escrit:
--- MarC <marc_contrib(a)ramonvinyes.es> wrote:
well the reason is a JACK bug which nobody seems to know how to solve.
Moreover, I think that Audigy runs at 48k so it may improve
computational efficiency or make it perform better... but it isn't the
main reason.
Then sbdy of the jack list has told me that with 48000, the problem
disappears, so that's why I may need to resample.
I quote here what I sent to the jack-devel list:
Hi,
I'm using ardour to record and I have recorded my
songs at 44100 until
now. Now I want to switch to 48000.
What's the easiest way (always within the best way
to do it) to convert
my sessions to 48000?
I would like something automatic like running a
script before starting
an ardour session at 44100 or clicking some option
at ardour to import it.
I have googled this issue and I found:
http://sr-convert.sourceforge.net/
I'm curious why you want to switch. The only practicle
reason I can think of is that your hardware runs at
48000 and a conversion has to take place on the fly so
you're trying to improve computational effiency.
>>>>>>>>>>>>>>>>
I don't know
whether this is a bug or not.
I have a P4, 512Mb RAM, and an Audigy. I configured JACK for a latency
of 11ms, realtime, and I have a debian-testing GNU/Linux with
kernel-multimedia-2.6.10 (from http://apt.agnula.org/demudi/)
Then, if I start xmms with jack and play some songs, everything runs
alright in the first minutes but after some time I always start hearing
an annoying noise which prevents me to use ardour to play live.
(I have recorded it and you can download it at
http://www.telefonica.net/web2/mrvinyes/marc/noise.ogg
NOTE: you will see that the noise only is present when there is a sound,
as when there is the silence between two tracks, you can't hear it)
NOTE2: when working with ardour, if I'm recording the sound of a mic,
even if I hear this noise at the final output, the mic is well recorded,
so this noise only affects the PCM output...
NOTE3: when I use alsa, I never have this problem.
After a while this noise disappears without doing anything and in the
message window of qjackqtl I get:
**** alsa_pcm: xrun of at least 0.099 msecs
18:27:46.204 XRUN callback (1 skipped).
If I configure JACK for higher latency, this noise appears later but I
can't get rid of it.
Maybe Audigy doesn't allow these latencies and this is "a normal XRUN".
However I can't understand why JACK doesn't reset before and I must hear
all this annoying noise until it stops during a minute. In fact, if I
change the latency without shutting down JACK with ardour, the noise
disappears but I can't do this manually while recording and I think JACK
should do the reset for me...
>>>>>>>>>>>>>>>>>
You've already got libsndfile installed which
includes
sndfile-resample. I'm not sure if you can convert the
rates, start jack at the new rate and open the Ardour
session without having Ardour complain.
well. In fact, ardour *complains* with warnings. How can I avoid it?
The result is that the song is read at a different speed+pitch because
it was recorded as 44100 and now it is played at 48000. I can't
understand what do you mean.
In theory it
makes sense that you can because Ardour shouldn't care
about samplerate. It should look at jackd for the
currently running rate and examine the files to see
what rate they are. If they are the same, open session
and run. I guess you'll need to test that.
ron
>but it's not debian-packaged yet and I'm too lazy
>now...
>maybe ecasound? but I'm afraid it doesn't consider
>so much things as
>sr-convert...
>
>
2:01 p.m.
Hi,
It's complaing because you haven't resampled to the
new rate. I'm trying to think of the easiest way for
you to create a working session with the new sample
rate but I'm not sure if it'll work.
I suggest, making a backup of the current session and
then 'cd sessionname/sounds' and convert the sample
rates from 44100 to 48000 with 'sndfile-resample -to
48000 inputfilename.wav outputfilename.wav'.
The remaining problem is that sndfile-resample can't
output with the same name of the input file so you
have to manually 'mv outputfilename.wav
originalfilename.wav' which is the filename that's in
the Ardour session file somename.ardour.
Maybe the way to test this method is to create a
simple Ardour session at 44100 and with one track.
Then do the above to that session. If it works, great.
At least you'll know what's gotta happen. If you've
gotta alot of sessions to convert then it might be
worth the time to do some scripting.
ron
You've already got libsndfile installed which
includes
sndfile-resample. I'm not sure if you can
convert
the
rates, start jack at the new rate and open the
Ardour
session without having Ardour complain.
well. In fact, ardour *complains* with warnings. How
can I avoid it? The result is that the song is read at a different
speed+pitch because
it was recorded as 44100 and now it is played at
48000. I can't
understand what do you mean.
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In theory it
makes sense that you can because Ardour shouldn't
care
about samplerate. It should look at jackd for the
currently running rate and examine the files to see
what rate they are. If they are the same, open
session
and run. I guess you'll need to test that.
ron
>but it's not debian-packaged yet and I'm too lazy
>now...
>maybe ecasound? but I'm afraid it doesn't consider
>so much things as
>sr-convert...
>
>
2:58 p.m.
On Sat, 2005-02-26 at 14:50 +0100, MarC wrote:
Hi,
I'm using ardour to record and I have recorded my songs at 44100 until
now. Now I want to switch to 48000.
What's the easiest way (always within the best way to do it) to convert
my sessions to 48000?
I would like something automatic like running a script before starting
an ardour session at 44100 or clicking some option at ardour to import it.
I have googled this issue and I found:
http://sr-convert.sourceforge.net/
but it's not debian-packaged yet and I'm too lazy now...
maybe ecasound? but I'm afraid it doesn't consider so much things as
sr-convert...
Sox is very good at this. I also use am emu10k1 based card so often
convert samples from 44100 to 48000. Try the "polyphase" option too.
Lee
5:32 p.m.
On Sat, 26 Feb 2005 14:50:24 +0100
MarC <marc_contrib(a)ramonvinyes.es> wrote:
Hi,
I'm using ardour to record and I have recorded my songs at 44100 until
now. Now I want to switch to 48000.
What's the easiest way (always within the best way to do it) to convert
my sessions to 48000?
I would like something automatic like running a script before starting
an ardour session at 44100 or clicking some option at ardour to import it.
I have googled this issue and I found:
http://sr-convert.sourceforge.net/
but it's not debian-packaged yet and I'm too lazy now...
If you install libsndfile and libsamplerate from Debian you will
get sndfile-resample which avoids some of the problems of the
above (difficulty with some sample rates).
Erik
--
+-----------------------------------------------------------+
Erik de Castro Lopo nospam(a)mega-nerd.com (Yes it's valid)
+-----------------------------------------------------------+
"I've nothing against OO, I do have something against C++. Its a dogs
dinner. Anyone who's (tried) to read Stroustrups book on C++ like I had
the misfortune of doing knows that the man is very intelligent but has
about as much clarity of thought as Timothy Leary on a bad day."
-- NJR in comp.os.linux.development.apps
27 Feb
27 Feb
7:24 a.m.
Erik de Castro Lopo <erikd-lad(a)mega-nerd.com> writes:
On Sat, 26 Feb 2005 14:50:24 +0100
MarC <marc_contrib(a)ramonvinyes.es> wrote:
There's no sndfile-resample in debian testing or unstable (at least I
can't find it) with the following packages installed:
libsndfile1
libsndfile1-dev
sndfile-programs
libsamplerate0
libsamplerate0-dev
Sebastian
Hi,
I'm using ardour to record and I have recorded my songs at 44100 until
now. Now I want to switch to 48000.
What's the easiest way (always within the best way to do it) to convert
my sessions to 48000?
I would like something automatic like running a script before starting
an ardour session at 44100 or clicking some option at ardour to import it.
I have googled this issue and I found:
http://sr-convert.sourceforge.net/
but it's not debian-packaged yet and I'm too lazy now...
If you install libsndfile and libsamplerate from Debian you will
get sndfile-resample which avoids some of the problems of the
above (difficulty with some sample rates).
7:47 a.m.
On Sun, 27 Feb 2005 12:24:27 +0100
Sebastian Gutsfeld <segoh(a)gmx.net> wrote:
There's no sndfile-resample in debian testing or
unstable (at least I
can't find it) with the following packages installed:
libsndfile1
libsndfile1-dev
sndfile-programs
libsamplerate0
libsamplerate0-dev
Sorry, I thought the Debian maintainer made sndfile-resample
an installation binary.
You should probably raise a bug against the libsamplerate0
package.
Your only option is the get sndfile-resample now is to install
from source.
Erik
--
+-----------------------------------------------------------+
Erik de Castro Lopo nospam(a)mega-nerd.com (Yes it's valid)
+-----------------------------------------------------------+
"The growing and dangerous intrusion of this new technology,
threatens an entire industry's economic vitality and future
security." -- Jack Valenti (MPAA president) on the video
cassette recorder, 1982.
8:09 a.m.
Erik de Castro Lopo <erikd-lad(a)mega-nerd.com> writes:
On Sun, 27 Feb 2005 12:24:27 +0100
Sebastian Gutsfeld <segoh(a)gmx.net> wrote:
Done.
There's no sndfile-resample in debian testing
or unstable (at least I
can't find it) with the following packages installed:
libsndfile1
libsndfile1-dev
sndfile-programs
libsamplerate0
libsamplerate0-dev
Sorry, I thought the Debian maintainer made sndfile-resample
an installation binary.
You should probably raise a bug against the libsamplerate0
package. Your only option is the get sndfile-resample now is to
install
from source.
I found out that the sources for the libsamplerate examples are included
in libsamplerate0-dev under /usr/share/doc/libsamplerate0-dev/examples.
Sebastian
9:39 a.m.
En/na Erik de Castro Lopo ha escrit:
On Sun, 27 Feb 2005 12:24:27 +0100
Sebastian Gutsfeld <segoh(a)gmx.net> wrote:
OK thank you anyway. Now I've got different options and I will
./configure make the most convenient.
and well... I even have discovered that some of my songs are better with
the new pitch and rythm! so no need to resample them!! XD
There's no sndfile-resample in debian testing
or unstable (at least I
can't find it) with the following packages installed:
libsndfile1
libsndfile1-dev
sndfile-programs
libsamplerate0
libsamplerate0-dev
Sorry, I thought the Debian maintainer made sndfile-resample
an installation binary.
You should probably raise a bug against the libsamplerate0
package.
Your only option is the get sndfile-resample now is to install
from source.
Erik
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days inactive
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days old
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9 comments
5 participants
participants (5)
-
Erik de Castro Lopo -
Lee Revell -
MarC -
R Parker -
Sebastian Gutsfeld