Is there a way to check from the command line the audio length (not the
size of the file) of an audio file (assume wav, but I also want to do
other types, especially flac). So far I have only found this:
sox myaudiofile.wav -n stat
which gives me more information than I need, but at least I can parse
out the length from that output. Is there a simpler more direct
approach using some other command line utility ?
Bill
Hi again!
The csound utility is called sndinfo, but it also gives more than you need.
I know that the sndfile-* and eca* utilities can handle quite a collection
of formats .flac definitely included.
Kindest regards
Julien
--------
Music was my first love and it will be my last (John Miles)
======== FIND MY WEB-PROJECT AT: ========
http://ltsb.sourceforge.net
the Linux TextBased Studio guide
======= AND MY PERSONAL PAGES AT: =======
http://www.juliencoder.de
Announcing the DSSI Soft Synth Interface version 1.0 release:
http://dssi.sourceforge.net/
DSSI is an audio plugin API for software instruments and effects,
based on LADSPA, the ALSA sequencer event types, and OSC (Open
Sound Control) communications.
DSSI is now supported by six full-featured hosts, several
specialized hosts, and at least twenty-two DSSI plugins. (See the
above URL for a list.)
This release contains one small addition to the DSSI API itself,
allowing for communication of the sample rate to DSSI UIs. Since the
DSSI API has been stable now (with minor additions) for four and a
half years, and since most active interest in further extending a
Linux softsynth plugin standard has been absorbed by the LV2
project, it seems appropriate to call this release "version 1.0".
In addition to the API addition, code and documentation updates have
been made in the DSSI release itself, and in FluidSynth-DSSI,
hexter, and Xsynth-DSSI. New versions of each are available at the
above URL. Specific changes include:
DSSI 1.0.0:
* Addition to API of the new 'sample-rate' OSC method.
* Addition of a Karplus-Strong example synth.
* Documentation improvements.
* Updates for newer gcc/glibc, for Mac OS X, and for newer JACK.
* Addition of man pages thanks to Mark Hymers and Debian.
FluidSynth-DSSI 1.0.0:
* Fixed a bug that caused distorted sound when hosted by Aldrin.
* Updates for Mac OS X.
* Changed GUI to handle (ignore) the 'sample-rate' method.
* Added '-test' option to allow testing the GUI without a host.
hexter 0.6.2:
* Updates for newer GTK+.
* Changed GUI to handle (ignore) the 'sample-rate' method.
Xsynth-DSSI 0.9.2:
* Updates for newer gcc/glibc, RPM-based distros, Mac OS X, and
newer GTK+.
* Changed GUI to handle (ignore) the 'sample-rate' method.
* Added '-test' option to allow testing the GUI without a host.
Enjoy!
Sean Bolton
Hi
I recently update my debian glibc to 2.8.1, and surprise ... GTK based apps can't connect to jackd server, well even Ardour can't start the server,
maybe is a debian glibc/gtk issue, or maybe not .... can anyone check and confirm in other distro? btw qt, fltk jack based apps run fine, and other GTK stuff run.
Josep
--
Josep Andreu <holborn(a)telefonica.net>
Hi all,
Many thanks for your replies. Audacity and Traverso are certaintly
well-established projects, so I think I could learn a lot from them. I also
spoke previously (about a year ago now) with Remon from Traverso, who kindly
invited me to join so perhaps that could be an option too. I'm very keen to
learn about how audio software works so hopefully this will be the start of
my learning. Slightly off the topic...has anybody been having issues with
the new pulseaudio server in Ubuntu Intrepid? I tried one of the fixes
suggested on the forums (reverting to esound) but it still crashes
sometimes. It's annoying me now, the previous version was fine!
Thanks,
Daire
On Wed, Jan 7, 2009 at 2:00 AM, <
linux-audio-dev-request(a)lists.linuxaudio.org> wrote:
> Send Linux-audio-dev mailing list submissions to
> linux-audio-dev(a)lists.linuxaudio.org
>
> To subscribe or unsubscribe via the World Wide Web, visit
> http://lists.linuxaudio.org/mailman/listinfo/linux-audio-dev
> or, via email, send a message with subject or body 'help' to
> linux-audio-dev-request(a)lists.linuxaudio.org
>
> You can reach the person managing the list at
> linux-audio-dev-owner(a)lists.linuxaudio.org
>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of Linux-audio-dev digest..."
>
>
> Today's Topics:
>
> 1. open source audio transcribing software? (Ted Walther)
> 2. Re: open source audio transcribing software? (Chris Cannam)
> 3. Re: open source audio transcribing software? (Ted Walther)
> 4. Re: Hello (Patrick Shirkey)
> 5. Re: Hello (Grammostola Rosea)
> 6. Re: Hello (hollunder(a)gmx.at)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Mon, 5 Jan 2009 13:35:47 -0800
> From: Ted Walther <ted(a)reactor-core.org>
> Subject: [LAD] open source audio transcribing software?
> To: linux-audio-dev(a)lists.linuxaudio.org
> Message-ID: <20090105213547.GA14451(a)reactor-core.org>
> Content-Type: text/plain; charset=us-ascii; format=flowed
>
> I tried to install Express Scribe, but it wouldn't install under Ubuntu.
>
> It has the features I'd need.
>
> The features I need in such a program is a way to "remotely" signal to
> it to pause, rewind five seconds then unpause. A desired feature would
> be some way to speed up and slow down the audio stream without altering
> the pitch.
>
> Do I need to program a transcription program for the Open Source world,
> or is there one already?
>
> I worked in the past on FreeBSD audio drivers, and have done some simple
> audio applications under Linux, such as a text to morse-code generator.
>
> I have a lot of transcribing to do, so writing such a program may be
> worthwhile if it isn't already done yet.
>
> Ted
>
> --
> There's a party in your skull. And you're invited!
>
> Name: Ted Walther
> Phone: 604-625-7635
> Email: ted(a)reactor-core.org
> Address: 26337 64 Ave, Langley, BC V4W1M3
>
>
> ------------------------------
>
> Message: 2
> Date: Mon, 5 Jan 2009 22:01:11 +0000
> From: "Chris Cannam" <cannam(a)all-day-breakfast.com>
> Subject: Re: [LAD] open source audio transcribing software?
> To: "Ted Walther" <ted(a)reactor-core.org>
> Cc: linux-audio-dev(a)lists.linuxaudio.org
> Message-ID:
> <587e90db0901051401l32b7737ek110d596130c24813(a)mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> On Mon, Jan 5, 2009 at 9:35 PM, Ted Walther <ted(a)reactor-core.org> wrote:
> > The features I need in such a program is a way to "remotely" signal to
> > it to pause, rewind five seconds then unpause. A desired feature would
> > be some way to speed up and slow down the audio stream without altering
> > the pitch.
>
> Sonic Visualiser (http://www.sonicvisualiser.org/) can do this with
> remote control via OSC, but (a) its visualisation may be overkill, at
> least if you are transcribing speech rather than music, and (b)
> setting up OSC control for it is a bit of a project in itself.
>
> There is a small program (sv-osc-send) in the data/osc directory of
> the Sonic Visualiser distribution which can be used to send an OSC
> command to any program; there is also a shell script (sv-command)
> which tries to look up the Sonic Visualiser OSC port and send your
> command to the right place; and there is a rather convoluted example
> remote-demo script for SV using OSC -- but none of these are provided
> with any of the SV binary packages, you need the source package or
> repository checkout. Also, for any of this to work, your copy of SV
> must have been built with OSC support in the first place (it is
> optional).
>
>
> Chris
>
>
> ------------------------------
>
> Message: 3
> Date: Mon, 5 Jan 2009 14:29:03 -0800
> From: Ted Walther <ted(a)reactor-core.org>
> Subject: Re: [LAD] open source audio transcribing software?
> To: Chris Cannam <cannam(a)all-day-breakfast.com>
> Cc: linux-audio-dev(a)lists.linuxaudio.org
> Message-ID: <20090105222903.GA29879(a)reactor-core.org>
> Content-Type: text/plain; charset=us-ascii; format=flowed
>
> On Mon, Jan 05, 2009 at 10:01:11PM +0000, Chris Cannam wrote:
> >On Mon, Jan 5, 2009 at 9:35 PM, Ted Walther <ted(a)reactor-core.org> wrote:
> >> The features I need in such a program is a way to "remotely" signal
> >> to it to pause, rewind five seconds then unpause. A desired feature
> >> would be some way to speed up and slow down the audio stream without
> >> altering the pitch.
> >
> >Sonic Visualiser (http://www.sonicvisualiser.org/) can do this with
> >remote control via OSC, but (a) its visualisation may be overkill, at
> >least if you are transcribing speech rather than music, and (b) setting
> >up OSC control for it is a bit of a project in itself.
> >
> >There is a small program (sv-osc-send) in the data/osc directory of the
> >Sonic Visualiser distribution which can be used to send an OSC command
> >to any program; there is also a shell script (sv-command) which tries
> >to look up the Sonic Visualiser OSC port and send your command to the
> >right place; and there is a rather convoluted example remote-demo
> >script for SV using OSC -- but none of these are provided with any of
> >the SV binary packages, you need the source package or repository
> >checkout. Also, for any of this to work, your copy of SV must have
> >been built with OSC support in the first place (it is optional).
>
> Thanks Chris. That sounds like overkill. While browsing the web for my
> needs, it seems like there is a similar situation with dictation
> software. Lots of things that "almost" work as needed for the
> application, or that work well but with tremendous overhead.
>
> Ted
>
> --
> There's a party in your skull. And you're invited!
>
> Name: Ted Walther
> Phone: 604-625-7635
> Email: ted(a)reactor-core.org
> Address: 26337 64 Ave, Langley, BC V4W1M3
>
>
> ------------------------------
>
> Message: 4
> Date: Tue, 06 Jan 2009 09:36:06 +0700
> From: Patrick Shirkey <pshirkey(a)boosthardware.com>
> Subject: Re: [LAD] Hello
> To: Daire O'Neill <oneill.daire(a)gmail.com>
> Cc: linux-audio-dev(a)lists.linuxaudio.org
> Message-ID: <4962C396.4000103(a)boosthardware.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Daire O'Neill wrote:
> > Hi all,
> >
> > My name is Daire O'Neill. I've just joined the list to hopefully begin
> > my learning on audio development and possibly to contribute to some
> > current projects. As a beginner, I have only basic C/C++ skills, and
> > have never worked on any major project before. I do have a good
> > knowledge of audio technology and some basic DSP concepts, its the
> > programming side of things that lets me down! I'm currently working my
> > way through 'Accelerated C++' by Koenig and Moo though, so I'm
> > learning every day. I really want to learn about audio development and
> > become involved with an audio project, particularly a multitrack
> > recorder. I would like to be able to write my own simple multitrack
> > recorder eventually. Anyway, if anyone has any tips or suggestions, or
> > can recommend a project where I could be of help, then please let me
> > know.
> >
> Hi,
>
> Welcome to Linux Audio Development.
>
> There are several projects that you may be interested in contributing to.
>
> The most advanced is Ardour. It uses c++ and you will learn a lot
> studying the code.
>
> There is also Audacity which is cross platform so that could be another
> good app to get involved with.
>
> For a full list of apps check out the apps wiki
>
> http://apps.linuxaudio.org
>
>
>
> Cheers.
>
>
>
>
> > Regards,
> >
> > Daire
> > ------------------------------------------------------------------------
> >
> > _______________________________________________
> > Linux-audio-dev mailing list
> > Linux-audio-dev(a)lists.linuxaudio.org
> > http://lists.linuxaudio.org/mailman/listinfo/linux-audio-dev
> >
>
>
> --
> Patrick Shirkey
> Boost Hardware Ltd.
>
>
>
>
>
> ------------------------------
>
> Message: 5
> Date: Tue, 06 Jan 2009 11:10:40 +0100
> From: Grammostola Rosea <rosea.grammostola(a)gmail.com>
> Subject: Re: [LAD] Hello
> Cc: linux-audio-dev(a)lists.linuxaudio.org
> Message-ID: <49632E20.5090801(a)gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Patrick Shirkey wrote:
> > Daire O'Neill wrote:
> >
> >> Hi all,
> >>
> >> My name is Daire O'Neill. I've just joined the list to hopefully begin
> >> my learning on audio development and possibly to contribute to some
> >> current projects. As a beginner, I have only basic C/C++ skills, and
> >> have never worked on any major project before. I do have a good
> >> knowledge of audio technology and some basic DSP concepts, its the
> >> programming side of things that lets me down! I'm currently working my
> >> way through 'Accelerated C++' by Koenig and Moo though, so I'm
> >> learning every day. I really want to learn about audio development and
> >> become involved with an audio project, particularly a multitrack
> >> recorder. I would like to be able to write my own simple multitrack
> >> recorder eventually. Anyway, if anyone has any tips or suggestions, or
> >> can recommend a project where I could be of help, then please let me
> >> know.
> >>
> >>
> > Hi,
> >
> > Welcome to Linux Audio Development.
> >
> > There are several projects that you may be interested in contributing to.
> >
> > The most advanced is Ardour. It uses c++ and you will learn a lot
> > studying the code.
> >
> > There is also Audacity which is cross platform so that could be another
> > good app to get involved with.
> >
> > For a full list of apps check out the apps wiki
> >
> > http://apps.linuxaudio.org
> >
> >
> >
> >
> I know Audacity was searching for a JACK developer to get better JACK
> support.
>
> You also can take a look here for some small projects:
>
> http://linuxmusicians.com/viewforum.php?f=44
>
>
>
> ------------------------------
>
> Message: 6
> Date: Tue, 6 Jan 2009 12:44:32 +0100
> From: <hollunder(a)gmx.at>
> Subject: Re: [LAD] Hello
> To: linux-audio-dev(a)lists.linuxaudio.org
> Message-ID: <20090106124432.0248455d(a)gmx.at>
> Content-Type: text/plain; charset=US-ASCII
>
> On Tue, 06 Jan 2009 11:10:40 +0100
> Grammostola Rosea <rosea.grammostola(a)gmail.com> wrote:
>
> > Patrick Shirkey wrote:
> > > Daire O'Neill wrote:
> > >
> > >> Hi all,
> > >>
> > >> My name is Daire O'Neill. I've just joined the list to hopefully
> > >> begin my learning on audio development and possibly to contribute
> > >> to some current projects. As a beginner, I have only basic C/C++
> > >> skills, and have never worked on any major project before. I do
> > >> have a good knowledge of audio technology and some basic DSP
> > >> concepts, its the programming side of things that lets me down!
> > >> I'm currently working my way through 'Accelerated C++' by Koenig
> > >> and Moo though, so I'm learning every day. I really want to learn
> > >> about audio development and become involved with an audio project,
> > >> particularly a multitrack recorder. I would like to be able to
> > >> write my own simple multitrack recorder eventually. Anyway, if
> > >> anyone has any tips or suggestions, or can recommend a project
> > >> where I could be of help, then please let me know.
> > >>
> > >>
> > > Hi,
> > >
> > > Welcome to Linux Audio Development.
> > >
> > > There are several projects that you may be interested in
> > > contributing to.
> > >
> > > The most advanced is Ardour. It uses c++ and you will learn a lot
> > > studying the code.
> > >
> > > There is also Audacity which is cross platform so that could be
> > > another good app to get involved with.
> > >
> > > For a full list of apps check out the apps wiki
> > >
> > > http://apps.linuxaudio.org
> > >
> > >
> > >
> > >
> > I know Audacity was searching for a JACK developer to get better JACK
> > support.
> >
> > You also can take a look here for some small projects:
> >
> > http://linuxmusicians.com/viewforum.php?f=44
>
> Traverso is also looking for developers, it's C++/qt4 and has an
> unusual UI concept.
>
>
> ------------------------------
>
> _______________________________________________
> Linux-audio-dev mailing list
> Linux-audio-dev(a)lists.linuxaudio.org
> http://lists.linuxaudio.org/mailman/listinfo/linux-audio-dev
>
>
> End of Linux-audio-dev Digest, Vol 23, Issue 3
> **********************************************
>
Hi!
This already went to the LAU list, please ignore if you are subscribed
there, too.
This is a call for contributions. Take your chance of becoming part of
a crowd of people all around the world, counting to the rhythm in
several languages!
Contributors will be credited in order of their submissions and this will
also likely influence the order of use in the track ;)
Besides recording yourself and family and friends and pets (if they are
able to count), you can help by spreading the word.
What I'm after are recordings of one person at a time, saying:
A: "One Two Three Four"
B: "One and Two and Three and Four and"
C: "Beat" (to be translated to whatever makes sense 4 times in one measure
at 4/4. A single utterance is enough, as I want to use these as accent.)
- Translated in a native language and any language spoken without much
of an accent. If there are special ways of counting to the beat in a
language, use those (only or even better additionally) and inform me.
- With a tempo of 110 beats per minute (to be very clear, the "and" has
to be between beats ;).
- A and B should ideally be recorded with about 4 iterations (4 measures)
Don't think that your language will already be well-represented without
you. Others might think the same ;) Also, the more I can layer in one
language, the better.
All files should be:
- ideally wavpacked, or plain WAV as second choice
- 32 bit float, 48 KHz
- Trimmed
- Normalized
- Dry
- Explicitly licensed as http://creativecommons.org/licenses/by-sa/2.0/
or released to the Public Domain
_Only_ if you don't record with a JACK application, 16 and 24 bit integer
formats are also acceptable.
Please name the files as follows:
- firstname_lastname_language_count.wav for "One Two Three Four"
- firstname_lastname_language_count_and.wav for "One and Two ..."
- firstname_lastname_language_beat.wav for "Beat"
Email attachments are no option for such large files, so only send
links to uploads. Consider using http://www.getdropbox.com/ if you have
no other space. Please mail me off-list for submissions and on-list for
questions.
I'm also available as thorwil in #lad and #ardour at irc.freenode.net.
My intention is to offer the result and the material on archive.org.
This is an open-source project ;)
I also want to submit a version to the
https://wiki.ubuntu.com/UbuntuFreeCultureShowcase
I can't promise to use all contributions. I will sort out ones that
sound suspiciously different from others claimed to be in the same
language ;)
However, all serious contributors will be given credit.
Deadline:
I will start to work with the material as soon as I have enough, but
will accept more until the 23rd of January.
Thanks!
--
Thorsten Wilms
thorwil's design for free software:
http://thorwil.wordpress.com/
Hi all,
My name is Daire O'Neill. I've just joined the list to hopefully begin my
learning on audio development and possibly to contribute to some current
projects. As a beginner, I have only basic C/C++ skills, and have never
worked on any major project before. I do have a good knowledge of audio
technology and some basic DSP concepts, its the programming side of things
that lets me down! I'm currently working my way through 'Accelerated C++' by
Koenig and Moo though, so I'm learning every day. I really want to learn
about audio development and become involved with an audio project,
particularly a multitrack recorder. I would like to be able to write my own
simple multitrack recorder eventually. Anyway, if anyone has any tips or
suggestions, or can recommend a project where I could be of help, then
please let me know.
Regards,
Daire
I tried to install Express Scribe, but it wouldn't install under Ubuntu.
It has the features I'd need.
The features I need in such a program is a way to "remotely" signal to
it to pause, rewind five seconds then unpause. A desired feature would
be some way to speed up and slow down the audio stream without altering
the pitch.
Do I need to program a transcription program for the Open Source world,
or is there one already?
I worked in the past on FreeBSD audio drivers, and have done some simple
audio applications under Linux, such as a text to morse-code generator.
I have a lot of transcribing to do, so writing such a program may be
worthwhile if it isn't already done yet.
Ted
--
There's a party in your skull. And you're invited!
Name: Ted Walther
Phone: 604-625-7635
Email: ted(a)reactor-core.org
Address: 26337 64 Ave, Langley, BC V4W1M3
Hi,
A couples months ago we started a forum at linuxmusicians.com . Our aim
is to bring Linux musicians together and help each other to make music
on the Linux platform. We want to promote FLOSS software for making
music. We also want to make making music on Linux more accessible for
newbies and less computer minded people. We think a forum is a good
platform for this.
For making music on Linux, we need of course good software. To
inspire and help people to become a Linux audio developer, we launched a
special part for developers on our forum, which you can find here:
http://linuxmusicians.com/viewforum.php?f=44
As mentioned before, this should be a good and accessible place for
newbie programmers. But we also like to invite more experienced
developers to share their stuff, knowledge and help some newbies with
their first steps. Would be cool if some of you guys will visit the
forum sometimes a month (for example) and give some feedback to newbie
programmers or projects. If someone like to write an article about how
to become a Linux audio programmer and how to start, you're very welcome!
We are aware of the fact that there is also a linux-audio-dev
mailinglist and IRC channel. We also think the Linux audio development
community should operate as centralized as possible. So people can learn
from each other and make a good interaction between different apps and
projects as good as possible. That's why we wrote a short introduction
in which we make new developers aware of the existence of these places.
http://linuxmusicians.com/viewtopic.php?f=44&t=780
We hope we can inspire young and talented people to become a Linux audio
developer. We hope that you guys will support this initiative and are
willing to help new developers find their ways in the world of Linux
audio development.
Kind regards,
\r
