26 Jul
2010
26 Jul
'10
11:58 p.m.
Hi everyone,
Does anyone know of a simple application for previewing samples?
Something that lists all supported audio files in a given directory,
that you can click once and hear the sample? jack support would be
necessary. I've searched the archives and found this question asked
before, but I wasn't able to find an answer. Any pointers or
suggestions would be very welcome.
Thank you!
--
Josh Lawrence
27 Jul
27 Jul
12:33 a.m.
Hey Josh et al,
I use Midnight Commander for this...I know a lot of window managers might
have a preview function built-in, but I really like the way mc does it-
arrow and enter. I don't know off the top of my head which filetypes are
supported (probably not *.gig), but it's commandline, works with wavs and
soundfonts and mp3s and oggs, and I like it.
On Mon, Jul 26, 2010 at 2:58 PM, Josh Lawrence <hardbop200(a)gmail.com> wrote:
Hi everyone,
Does anyone know of a simple application for previewing samples?
Something that lists all supported audio files in a given directory,
that you can click once and hear the sample? jack support would be
necessary. I've searched the archives and found this question asked
before, but I wasn't able to find an answer. Any pointers or
suggestions would be very welcome.
Thank you!
--
Josh Lawrence
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user(a)lists.linuxaudio.org
http://lists.linuxaudio.org/listinfo/linux-audio-user
12:51 p.m.
El 07/27/2010 12:32 AM, Eric Steinberg escribió:
Hey Josh et al,
I use Midnight Commander for this...I know a lot of window managers
might have a preview function built-in, but I really like the way mc
does it- arrow and enter. I don't know off the top of my head which
filetypes are supported (probably not *.gig), but it's commandline,
works with wavs and soundfonts and mp3s and oggs, and I like it.
But I don't think it supports JACK.
Anyway you can configure it to use an external app for that...
Best regards,
Natanael.
On Mon, Jul 26, 2010 at 2:58 PM, Josh Lawrence <hardbop200(a)gmail.com
<mailto:hardbop200@gmail.com>> wrote:
Hi everyone,
Does anyone know of a simple application for previewing samples?
Something that lists all supported audio files in a given directory,
that you can click once and hear the sample? jack support would be
necessary. I've searched the archives and found this question asked
before, but I wasn't able to find an answer. Any pointers or
suggestions would be very welcome.
Thank you!
--
Josh Lawrence
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user(a)lists.linuxaudio.org
<mailto:Linux-audio-user@lists.linuxaudio.org>
http://lists.linuxaudio.org/listinfo/linux-audio-user
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user(a)lists.linuxaudio.org
http://lists.linuxaudio.org/listinfo/linux-audio-user
28 Jul
28 Jul
9:48 p.m.
If you use KDE, the dolphin file-browser lets you preview any files
you select. Music files have a "previewer" that will allow you to
listen to any format recognized as audio, and optionally using
whatever "nonfree" plugins you might have installed for decompressing,
for example MP3.
See http://everyjoe.com/technology/dolphin-file-manager/ for a picture.
If you setup KDE's System Settings->Computer
Administration->Multimedia , you can set it up so that "Music"
applications will send the audio to a specified soundcard, but you can
also give priority to "Jack Audio Connection Kit" instead of a
specific soundcard, and then it will always send music via Jack. This
can be set on a per-task basis so that you can have VOIP always go to
a USB headset, and music always through jack, and video sound through
something else...
If browsing MIDI files, one of these days, kmid2 will be able to use
kpart come up embedded in dolphin to allow it to preview MIDI files
directly, but until then, clicking MIDI would launch kmid2 if you had
that installed. ( https://bugs.kde.org/show_bug.cgi?id=241220 )
-- Niels
http://nielsmayer.com
10:04 p.m.
On Wed, Jul 28, 2010 at 9:48 PM, Niels Mayer <nielsmayer(a)gmail.com> wrote:
If you use KDE, the dolphin file-browser lets you
preview any files
you select. Music files have a "previewer" that will allow you to
listen to any format recognized as audio, and optionally using
whatever "nonfree" plugins you might have installed for decompressing,
for example MP3.
See http://everyjoe.com/technology/dolphin-file-manager/ for a picture.
If you setup KDE's System Settings->Computer
Administration->Multimedia , you can set it up so that "Music"
applications will send the audio to a specified soundcard, but you can
also give priority to "Jack Audio Connection Kit" instead of a
specific soundcard, and then it will always send music via Jack. This
can be set on a per-task basis so that you can have VOIP always go to
a USB headset, and music always through jack, and video sound through
something else...
If browsing MIDI files, one of these days, kmid2 will be able to use
kpart come up embedded in dolphin to allow it to preview MIDI files
directly, but until then, clicking MIDI would launch kmid2 if you had
that installed. ( https://bugs.kde.org/show_bug.cgi?id=241220 )
MOC ?
http://moc.daper.net/
http://moc.daper.net/node/554
27 Jul
27 Jul
1:07 a.m.
Excerpts from Josh Lawrence's message of 2010-07-26 23:58:14 +0200:
Hi everyone,
Does anyone know of a simple application for previewing samples?
Something that lists all supported audio files in a given directory,
that you can click once and hear the sample? jack support would be
necessary. I've searched the archives and found this question asked
before, but I wasn't able to find an answer. Any pointers or
suggestions would be very welcome.
Thank you!
For sample formats I have no idea, for normal audio samples mplayer is
likely a good choice. I recently switched to ROX filer, and there you
can specify a commandline and associate it with a filetype or group of
filetypes (based on MIME). With that you could go fancier than 'mplayer
file', maybe even find a way to stop the previously played file?
Samplecat is a dedicated sample organization/playback tool, but I never
actually used it.
--
Philipp
--
"Wir stehen selbst enttäuscht und sehn betroffen / Den Vorhang zu
und alle Fragen offen." Bertolt Brecht, Der gute Mensch von Sezuan
1:42 p.m.
Hey all,
What would be the "needs" of this sample preview program?
-a file browser: GUI or CLI?
-what sample formats? (MP3 support essential? or all the files supported by
LibSndFile ok?)
-resampling essential? Ie: Sample is recorded at 96kHz, but playback at
44.1kHz?
-gui mockups? (how do you want it to look? )
-waveform preview? (Possibly pointless, it is about the sound right..?)
-length & details? (again.. possibly pointless)
-any other remarks/feature requests etc?
Cheers, -Harry
On Mon, Jul 26, 2010 at 10:58 PM, Josh Lawrence <hardbop200(a)gmail.com>wrote;wrote:
Hi everyone,
Does anyone know of a simple application for previewing samples?
Something that lists all supported audio files in a given directory,
that you can click once and hear the sample? jack support would be
necessary. I've searched the archives and found this question asked
before, but I wasn't able to find an answer. Any pointers or
suggestions would be very welcome.
Thank you!
--
Josh Lawrence
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user(a)lists.linuxaudio.org
http://lists.linuxaudio.org/listinfo/linux-audio-user
2:58 p.m.
On Tuesday 27 July 2010 07:42:14 Harry Van Haaren wrote:
Hey all,
What would be the "needs" of this sample preview program?
-a file browser: GUI or CLI?
-what sample formats? (MP3 support essential? or all the files supported by
LibSndFile ok?)
-resampling essential? Ie: Sample is recorded at 96kHz, but playback at
44.1kHz?
-gui mockups? (how do you want it to look? )
-waveform preview? (Possibly pointless, it is about the sound right..?)
-length & details? (again.. possibly pointless)
-any other remarks/feature requests etc?
Cheers, -Harry
On Mon, Jul 26, 2010 at 10:58 PM, Josh Lawrence <hardbop200(a)gmail.com>wrote;wrote:
> Hi everyone,
>
> Does anyone know of a simple application for previewing samples?
> Something that lists all supported audio files in a given directory,
> that you can click once and hear the sample? jack support would be
> necessary. I've searched the archives and found this question asked
> before, but I wasn't able to find an answer. Any pointers or
> suggestions would be very welcome.
Button to play whole file.
Button to play first X (configurable) seconds of file.
Button to play X (configurable) seconds of file starting at position Y
(configurable).
Perhaps buttons 2 & 3 could be one button. Have two data entry widgets to the
left of the button, first holds X and second holds Y. Fill out from config
and allow override.
If not combined, give button 2 one such widget for holding X.
>
> Thank you!
>
> --
> Josh Lawrence
Don't mean to be this specific other than to convey the idea.
An extra feature would be to play on hover.
all the best,
drew
3:40 p.m.
Drew Roberts:
Button to play whole file.
Button to play first X (configurable) seconds of file.
Button to play X (configurable) seconds of file starting at position Y
(configurable).
Perhaps buttons 2 & 3 could be one button. Have two data entry widgets to
the
left of the button, first holds X and second holds Y. Fill out from config
and allow override.
Ok.. see attached mockup. Its pretty basic, doesn't allow access to any
"gritty details"..
but it should be a doddle to program. Let me know what you think.
Cheers, -Harry
28 Jul
28 Jul
5:32 a.m.
2010/7/26, Josh Lawrence <hardbop200(a)gmail.com>om>:
Hi everyone,
Does anyone know of a simple application for previewing samples?
Something that lists all supported audio files in a given directory,
that you can click once and hear the sample? jack support would be
necessary. I've searched the archives and found this question asked
before, but I wasn't able to find an answer. Any pointers or
suggestions would be very welcome.
If you have Emacs and Timidity you can do this with the dired mode in
Emacs. "M-x dired" then you can browse you files. If you hit "! play"
will play it. (maybe there is another shortcut and/or you can even set
your own)
7:29 a.m.
Bernardo Barros wrote:
2010/7/26, Josh Lawrence
<hardbop200(a)gmail.com>om>:
If you use Midnight Commander, I believe you can set it to play media
files using mplayer. Mplayer has keyboard commands, has a command line
option instructing it to start at a particular point in the media file.
Or you could script this kind of stuff around mplayer - have scripts for
the various options.
--
David
gnome(a)hawaii.rr.com
authenticity, honesty, community
Hi everyone,
Does anyone know of a simple application for previewing samples?
Something that lists all supported audio files in a given directory,
that you can click once and hear the sample? jack support would be
necessary. I've searched the archives and found this question asked
before, but I wasn't able to find an answer. Any pointers or
suggestions would be very welcome.
If you have Emacs and Timidity you can do this with the dired mode in
Emacs. "M-x dired" then you can browse you files. If you hit "!
play"
will play it. (maybe there is another shortcut and/or you can even set
your own)
4:20 p.m.
looks interesting, but if you hit mplayer then you get out of mc,
right? Inside emacs you don't have to leave dired mode. Yeah, but
mplayer can read more file formats.
2010/7/28, david <gnome(a)hawaii.rr.com>om>:
Bernardo Barros wrote:
2010/7/26, Josh Lawrence
<hardbop200(a)gmail.com>om>:
If you use Midnight Commander, I believe you can set it to play media
files using mplayer. Mplayer has keyboard commands, has a command line
option instructing it to start at a particular point in the media file.
Or you could script this kind of stuff around mplayer - have scripts for
the various options.
--
David
gnome(a)hawaii.rr.com
authenticity, honesty, community
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user(a)lists.linuxaudio.org
http://lists.linuxaudio.org/listinfo/linux-audio-user
Hi everyone,
Does anyone know of a simple application for previewing samples?
Something that lists all supported audio files in a given directory,
that you can click once and hear the sample? jack support would be
necessary. I've searched the archives and found this question asked
before, but I wasn't able to find an answer. Any pointers or
suggestions would be very welcome.
If you have Emacs and Timidity you can do this with the dired mode in
Emacs. "M-x dired" then you can browse you files. If you hit "!
play"
will play it. (maybe there is another shortcut and/or you can even set
your own)
29 Jul
29 Jul
11:19 a.m.
Bernardo Barros wrote:
looks interesting, but if you hit mplayer then you get
out of mc,
right?
I don't believe so. When you exit from mplayer, you return to the MC
shell still running MC. MC fires off the selected file viewer in a subshell.
I know I routinely start MC, then run a shell script I codged together
from one I found on the internet that generates a playlist from my music
collection and proceeds to start playing it in random order using
mplayer. When I quit from mplayer, I'm back at MC ...
Inside emacs you don't have to leave dired mode.
Yeah, but
mplayer can read more file formats.
But I always thought emacs was a complete operating system unto itself! ;-)
2010/7/28, david <gnome(a)hawaii.rr.com>om>:
> Bernardo Barros wrote:
>> 2010/7/26, Josh Lawrence <hardbop200(a)gmail.com>om>:
>>> Hi everyone,
>>>
>>> Does anyone know of a simple application for previewing samples?
>>> Something that lists all supported audio files in a given directory,
>>> that you can click once and hear the sample? jack support would be
>>> necessary. I've searched the archives and found this question asked
>>> before, but I wasn't able to find an answer. Any pointers or
>>> suggestions would be very welcome.
>> If you have Emacs and Timidity you can do this with the dired mode in
>> Emacs. "M-x dired" then you can browse you files. If you hit "!
play"
>> will play it. (maybe there is another shortcut and/or you can even set
>> your own)
> If you use Midnight Commander, I believe you can set it to play media
> files using mplayer. Mplayer has keyboard commands, has a command line
> option instructing it to start at a particular point in the media file.
> Or you could script this kind of stuff around mplayer - have scripts for
> the various options.
--
David
gnome(a)hawaii.rr.com
authenticity, honesty, community
2 Aug
2 Aug
2:10 p.m.
Hey All,
Mini Announce: PreHear - A tiny sample audition program, based on GTK+,
written in Vala.
It has the features that Drew suggested, (play entire sample, play starting
at X seconds, and play from X secs to Y secs).
JACK connectivity, and the file browser filters on wav, au and aiff.
The widgets will be drawn in you own GTK theme, so the program may look
different to the attached screenshot.
Get it: git clone git://github.com/harryhaaren/PreHear.git // 2
branches: Master = source code
Tarball: http://sites.google.com/site/harryhaaren/Home/PreHear
.tar.gz?attredirects=0&d=1 // i686 with ui.glade file.
Feature request/commentary/etc welcome,
Cheers, -Harry
PS: Sent this 5 days ago with screenshot attached, was rejected by the
mailman..
4 Aug
4 Aug
7:47 p.m.
Excerpts from Harry Van Haaren's message of 2010-08-02 14:10:57 +0200:
Hey All,
Mini Announce: PreHear - A tiny sample audition program, based on GTK+,
written in Vala.
It has the features that Drew suggested, (play entire sample, play starting
at X seconds, and play from X secs to Y secs).
JACK connectivity, and the file browser filters on wav, au and aiff.
The widgets will be drawn in you own GTK theme, so the program may look
different to the attached screenshot.
Get it: git clone git://github.com/harryhaaren/PreHear.git // 2
branches: Master = source code
Tarball: http://sites.google.com/site/harryhaaren/Home/PreHear
.tar.gz?attredirects=0&d=1 // i686 with ui.glade file.
Feature request/commentary/etc welcome,
Cheers, -Harry
PS: Sent this 5 days ago with screenshot attached, was rejected by the
mailman..
It seems to be pretty common for mailinglists to not allow attachments
(besides html). You could just upload the screenshot on your page and
put a link into the mail.
Regards,
--
Philipp
--
"Wir stehen selbst enttäuscht und sehn betroffen / Den Vorhang zu
und alle Fragen offen." Bertolt Brecht, Der gute Mensch von Sezuan
5 Aug
5 Aug
1:15 a.m.
On Mon, Aug 2, 2010 at 5:10 AM, Harry Van Haaren <harryhaaren(a)gmail.com> wrote:
Mini Announce: PreHear - A tiny sample audition
program, based on GTK+,
written in Vala.
Get it: git clone git://github.com/harryhaaren/PreHear.git // 2
Got it, but don't know what to do with it.
Is there some kind of documentation on how to build or configure this
application? The README file
doesn't help for this, and the "run.sh" script refers to a nonexistent
directory.
As a developer, I'm interested in looking at working Vala sound
applications to see how it's done and what advantages this style of
application has over others. However, i don't know much about Vala so
some guidance would be helpful.
Thanks,
Niels
http://nielsmayer.com
1:24 a.m.
Hey Niels,
Sorry I do assume that everybody is familiar with the Waf build system! And
I shouldn't.
To configure, build and then run:
./waf configure
./waf
./run.sh
As for what Vala is capable of, it compiles to "intermidiate" C code (pure
C, not C++),
however its Object Oreintated, and natively supports most common stuff you
need if you use
GTK and Gnome things... (its a Gnome project I think..) All C libraries are
available if you write a
quick "vala header" so to speak, called a .vapi file. Syntax is like C# /
Java / C++
http://live.gnome.org/Vala
Also may be of intrest: Genie, (another "language" sytatically, however its
ran trough the same
compiler as Vala.) This looks more like Python, but with some "types"
throwin in around the place.
http://live.gnome.org/Genie
Hope this gives you some info, -Harry
PS: If your going to use Vala, I have parts of the Sndfile, Jack, and
Ecasound .vapi's written, and can
post them somewhere if you want. :-)
1:53 a.m.
On Wed, Aug 4, 2010 at 4:24 PM, Harry Van Haaren <harryhaaren(a)gmail.com> wrote:
Sorry I do assume that everybody is familiar with the
Waf build system! And
I shouldn't.
True, when I googled Waf, all I found was
http://en.wikipedia.org/wiki/Woman_acceptance_factor :-)
To configure, build and then run:
./waf configure
./waf
./run.sh
After installing vala.x86_64 0:0.8.1-1.fc12, I did waf confgure but
it died in compilation:
..................
gnulem-167-~/PreHear> ./waf
Setting build options & flags...
Initializing WAF build system...
Waf: Entering directory `/home/npm/PreHear/build'
Building the sources to objects...
[1/6] valac: sample.vala -> build/default/sample.c
build/default/sample.h build/default/sample.vapi
build/default/sample.deps
error: sndfile not found in specified Vala API directories or
GObject-Introspection GIR directories
error: jack not found in specified Vala API directories or
GObject-Introspection GIR directories
Waf: Leaving directory `/home/npm/PreHear/build'
Build failed: -> task failed (err #1):
{task: valac_task sample.vala ->
sample.c,sample.h,sample.vapi,sample.deps,sample.h}
.................
As for what Vala is capable of, it compiles to
"intermidiate" C code (pure
C, not C++),
however its Object Oreintated, and natively supports most common stuff you
need if you use
GTK and Gnome things... (its a Gnome project I think..) All C libraries are
available if you write a
quick "vala header" so to speak, called a .vapi file. Syntax is like C# /
Java / C++
http://live.gnome.org/Vala
As a "programming language" aficionado, I've seen the
"literature"
(kept under heading "Vala: gnome's oddball "Java"/C#") -- but
wanted
to see a working example for sound and GUI. Thus my interest in
compiling and trying out your program.
Also may be of intrest: Genie, (another
"language" sytatically, however its
ran trough the same compiler as Vala.) This looks more like Python, but with some
"types"
throwin in around the place.
http://live.gnome.org/Genie
Interesting as well although, I still wish people would stop
reinventing languages that are more or less the same as already
standardized languages. Although I'm no fan of JavaScript/ECMASCRIPT
at least it's blunders are well understood... (same opinion goes for
Java/C#/Vala).
What kind of "updake" by industry and community is Vala seeing, given
there's so many directions we're all getting pulled into? What silver
bullets are they offering?
Hope this gives you some info, -Harry
Thanks!
PS: If your going to use Vala, I have parts of the Sndfile, Jack, and
Ecasound .vapi's written, and can
post them somewhere if you want. :-)
Looks like I'll need them, unless I didn't configure correctly:
error: sndfile not found in specified Vala API directories or
GObject-Introspection GIR directories
error: jack not found in specified Vala API directories or
GObject-Introspection GIR directories
-- Niels
http://nielsmayer.com
2:01 a.m.
Looks like I'll need them, unless I didn't
configure correctly:
error: sndfile not found in specified Vala API directories or
GObject-Introspection GIR directories
error: jack not found in specified Vala API directories or
GObject-Introspection GIR directories
My bad... noobie software distrobuter.. ehum!
Attached are the .vapi files, just extract anywhere, and then either pass
"--vapi-dir=<path>" to line 25 in "wscript" (& uncomment
it).
Alternatively copy the 2 files to /usr/share/vala/vapi/
I don't have the time to update the tarball & svn now. Ill get that later in
the week
if I find some internet time. :-)
-Harry
2:21 a.m.
On Wed, Aug 4, 2010 at 5:01 PM, Harry Van Haaren <harryhaaren(a)gmail.com> wrote:
Attached are the .vapi files, just extract anywhere,
and then either pass
"--vapi-dir=<path>" to line 25 in "wscript" (& uncomment
it).
Thanks for the help. Now, it builds, but no apparent "binary" built.
gnulem-202-.../Vala/PreHear> waf clean
Setting build options & flags...
Initializing WAF build system...
Building the sources to objects...
'clean' finished successfully (0.043s)
gnulem-203-.../Vala/PreHear> waf configure
Setting build options & flags...
Initializing WAF build system...
Configuring the build enviroment...
Checking for program gcc or cc : /usr/bin/gcc
Checking for program cpp : /usr/bin/cpp
Checking for program ar : /usr/bin/ar
Checking for program ranlib : /usr/bin/ranlib
Checking for gcc : ok
Checking for program valac : /usr/bin/valac
Checking for gobject-2.0 : yes
Checking for gthread-2.0 : yes
Checking for program version valac >= 0.1.6 : ok 0.8.1
Checking for gtk+-2.0 >= 2.10.0 : yes
Checking for jack >= 0.100 : yes
Checking for sndfile : yes
'configure' finished successfully (0.151s)
gnulem-204-.../Vala/PreHear> waf
Setting build options & flags...
Initializing WAF build system...
Waf: Entering directory `/home/npm/PreHear/build'
Building the sources to objects...
Waf: Leaving directory `/home/npm/PreHear/build'
'build' finished successfully (0.016s)
gnulem-205-.../Vala/PreHear> ./run.sh
./run.sh: line 4: ./main: No such file or directory
gnulem-206-.../Vala/PreHear> td build/default/
total 16
-rw-r--r-- 1 npm npm 10755 2010-08-04 17:16 ui.glade
-rw-r--r-- 1 npm npm 13 2010-08-04 16:31 sample.deps
Niels
http://nielsmayer.com
2:38 a.m.
Hi!
Do you have Waf installed system wide? It seems like that from the command
line...
And I'm not fully sure what version of Waf I'm running for this project.
Maybe there's
a version mismatch?
Anyway the build stage isn't being completed, It should print the following:
Setting build options & flags...
Initializing WAF build system...
Waf: Entering directory `/home/harry/programming/vala/sampleGui/build'
Building the sources to objects...
[1/6] valac: sample.vala -> build/default/sample.c build/default/sample.h
build/default/sample.vapi build/default/sample.deps
[2/6] valac: main.vala -> build/default/main.c
[3/6] cc: build/default/sample.c -> build/default/sample_1.o
[4/6] cc: build/default/main.c -> build/default/main_2.o
default/main.c: In function ‘_vala_main’:
default/main.c:566: warning: format not a string literal and no format
arguments
default/main.c:589: warning: assignment from incompatible pointer type
[5/6] static_link: build/default/sample_1.o -> build/default/libsample.a
[6/6] cc_link: build/default/main_2.o -> build/default/main
Waf: Leaving directory `/home/harry/programming/vala/sampleGui/build'
'build' finished successfully (2.584s)
I'm guessing you've grabbed the tarball?
Perhaps the "master" branch from Github is a better starting point. I've
updated it to have the .vapi files,
and hopefully it wont do the crazy stuff that were getting now.
http://github.com/harryhaaren/PreHear/zipball/master
-Harry
PS: If you've got the .vapi's installed system wide, maybe replace them with
the ones from the master branch..
not 100% sure if i've worked on them since..?
8:21 a.m.
After installing ' waf.noarch 0:1.5.18-1.fc12' and rebuilding, it runs!
It's works very nice and all, and it's good to know I can build a jack
app this easily... so how would you go about adding a
spectrogram/waveform display for the samples you display, e.g.
http://www.mega-nerd.com/libsndfile/tools/#spectrogram . And then
using that as a visual reference, be able to zoom and drag out regions
on-top of the waveform or spectrogram. Then use the dimensions of the
regions to play in the loop, preferably, animating a cursor in
real-time as the sound plays. Of course you should be able to create
and destroy these loopers as independent "UI units" within a scrolling
region that can hold an infinite number of playing loops... as well as
dynamically collapse the "view" of the loop data to include a polar
spectrogram display, ala
http://freewheeling.sourceforge.net/shots.shtml but without the
reptilian GUI.
.........................................
gnulem-120-.../Vala/PreHear> delete -rf build/
gnulem-121-.../Vala/PreHear> ./waf configure
Setting build options & flags...
Initializing WAF build system...
Configuring the build enviroment...
Checking for program gcc or cc : /usr/bin/gcc
Checking for program cpp : /usr/bin/cpp
Checking for program ar : /usr/bin/ar
Checking for program ranlib : /usr/bin/ranlib
Checking for gcc : ok
Checking for program valac : /usr/bin/valac
Checking for gobject-2.0 : yes
Checking for gthread-2.0 : yes
Checking for program version valac >= 0.1.6 : ok 0.8.1
Checking for gtk+-2.0 >= 2.10.0 : yes
Checking for jack >= 0.100 : yes
Checking for sndfile : yes
'configure' finished successfully (0.154s)
gnulem-122-.../Vala/PreHear> ./waf
Setting build options & flags...
Initializing WAF build system...
Waf: Entering directory `/home/npm/Vala/PreHear/build'
Building the sources to objects...
[1/6] valac: sample.vala -> build/default/sample.c
build/default/sample.h build/default/sample.vapi
build/default/sample.deps
[2/6] valac: main.vala -> build/default/main.c
[3/6] cc: build/default/sample.c -> build/default/sample_1.o
[4/6] cc: build/default/main.c -> build/default/main_2.o
default/main.c: In function ‘_vala_main’:
default/main.c:587: warning: assignment from incompatible pointer type
[5/6] static_link: build/default/sample_1.o -> build/default/libsample.a
[6/6] cc_link: build/default/main_2.o -> build/default/main
Waf: Leaving directory `/home/npm/Vala/PreHear/build'
'build' finished successfully (1.147s)
gnulem-106-~/Documents> ~/Vala/PreHear/run.sh
Attempting to connect to JACK... Done!
WARNING: Sample not loaded. Possible uncompatible file?
currentSample.play()
WARNING: Sample not loaded. Possible uncompatible file?
currentSample.play()
currentSample.play()
currentSample.play()
currentSample.playXY(0,0)
currentSample.play()
currentSample.playXY(0,0)
currentSample.play()
currentSample.playX(10)
currentSample.playXY(10,10)
currentSample.playXY(10,10)
currentSample.playXY(10,10)
currentSample.playXY(10,10)
currentSample.playXY(10,10)
currentSample.playXY(10,10)
currentSample.playXY(10,10)
currentSample.playXY(10,10)
currentSample.playXY(10,10)
currentSample.play()
.............
Note:
gnulem-124-.../Vala/PreHear> git diff
diff --git a/wscript b/wscript
index f85ec3e..8678e23 100755
--- a/wscript
+++ b/wscript
@@ -23,6 +23,7 @@ def configure(conf):
#conf.env.append_value('CFLAGS', ['-O2', '-g',
'-Wall'])
#conf.env.append_value('VALAFLAGS', '--thread')
+ conf.env.append_value('VALAFLAGS',
'--vapidir=/home/npm/Vala/vapi/')
#conf.check_cfg(package='glib-2.0', uselib_store='GLIB',
atleast_version='2.10.0', mandatory=1, args='--cflags --libs')
conf.check_cfg(package='gtk+-2.0', uselib_store='GTK',
atleast_version='2.10.0', mandatory=1, args='--cflags --libs')
..............
Niels
http://nielsmayer.com
10:17 a.m.
Glad to hear its working. Was getting a little worried there. Are you
running 64 bits?
I've a waveform display done, so yes that's no problem. And it just involves
plotting
the sample amplitude vs sample position.. so that's easy. The spectogram you
mentioned
is my version of a nightmare, with FFT's and what not floating around the
place ;-)
I'll see how things go with the waveform, it should be ok to do the playhead
you talk bout,
the regions shouldnt be too much work either.. so Yup i will do those. in 2
weeks r so.
I'm going on holidays today :-)
Cheers, -Harry
On Thu, Aug 5, 2010 at 7:21 AM, Niels Mayer <nielsmayer(a)gmail.com> wrote:
After installing ' waf.noarch 0:1.5.18-1.fc12'
and rebuilding, it runs!
It's works very nice and all, and it's good to know I can build a jack
app this easily... so how would you go about adding a
spectrogram/waveform display for the samples you display, e.g.
http://www.mega-nerd.com/libsndfile/tools/#spectrogram . And then
using that as a visual reference, be able to zoom and drag out regions
on-top of the waveform or spectrogram. Then use the dimensions of the
regions to play in the loop, preferably, animating a cursor in
real-time as the sound plays. Of course you should be able to create
and destroy these loopers as independent "UI units" within a scrolling
region that can hold an infinite number of playing loops... as well as
dynamically collapse the "view" of the loop data to include a polar
spectrogram display, ala
http://freewheeling.sourceforge.net/shots.shtml but without the
reptilian GUI.
.........................................
gnulem-120-.../Vala/PreHear> delete -rf build/
gnulem-121-.../Vala/PreHear> ./waf configure
Setting build options & flags...
Initializing WAF build system...
Configuring the build enviroment...
Checking for program gcc or cc : /usr/bin/gcc
Checking for program cpp : /usr/bin/cpp
Checking for program ar : /usr/bin/ar
Checking for program ranlib : /usr/bin/ranlib
Checking for gcc : ok
Checking for program valac : /usr/bin/valac
Checking for gobject-2.0 : yes
Checking for gthread-2.0 : yes
Checking for program version valac >= 0.1.6 : ok 0.8.1
Checking for gtk+-2.0 >= 2.10.0 : yes
Checking for jack >= 0.100 : yes
Checking for sndfile : yes
'configure' finished successfully (0.154s)
gnulem-122-.../Vala/PreHear> ./waf
Setting build options & flags...
Initializing WAF build system...
Waf: Entering directory `/home/npm/Vala/PreHear/build'
Building the sources to objects...
[1/6] valac: sample.vala -> build/default/sample.c
build/default/sample.h build/default/sample.vapi
build/default/sample.deps
[2/6] valac: main.vala -> build/default/main.c
[3/6] cc: build/default/sample.c -> build/default/sample_1.o
[4/6] cc: build/default/main.c -> build/default/main_2.o
default/main.c: In function ‘_vala_main’:
default/main.c:587: warning: assignment from incompatible pointer type
[5/6] static_link: build/default/sample_1.o -> build/default/libsample.a
[6/6] cc_link: build/default/main_2.o -> build/default/main
Waf: Leaving directory `/home/npm/Vala/PreHear/build'
'build' finished successfully (1.147s)
gnulem-106-~/Documents> ~/Vala/PreHear/run.sh
Attempting to connect to JACK... Done!
WARNING: Sample not loaded. Possible uncompatible file?
currentSample.play()
WARNING: Sample not loaded. Possible uncompatible file?
currentSample.play()
currentSample.play()
currentSample.play()
currentSample.playXY(0,0)
currentSample.play()
currentSample.playXY(0,0)
currentSample.play()
currentSample.playX(10)
currentSample.playXY(10,10)
currentSample.playXY(10,10)
currentSample.playXY(10,10)
currentSample.playXY(10,10)
currentSample.playXY(10,10)
currentSample.playXY(10,10)
currentSample.playXY(10,10)
currentSample.playXY(10,10)
currentSample.playXY(10,10)
currentSample.play()
.............
Note:
gnulem-124-.../Vala/PreHear> git diff
diff --git a/wscript b/wscript
index f85ec3e..8678e23 100755
--- a/wscript
+++ b/wscript
@@ -23,6 +23,7 @@ def configure(conf):
#conf.env.append_value('CFLAGS', ['-O2', '-g',
'-Wall'])
#conf.env.append_value('VALAFLAGS', '--thread')
+ conf.env.append_value('VALAFLAGS',
'--vapidir=/home/npm/Vala/vapi/')
#conf.check_cfg(package='glib-2.0', uselib_store='GLIB',
atleast_version='2.10.0', mandatory=1, args='--cflags --libs')
conf.check_cfg(package='gtk+-2.0', uselib_store='GTK',
atleast_version='2.10.0', mandatory=1, args='--cflags --libs')
..............
Niels
http://nielsmayer.com
18 Aug
18 Aug
12:12 a.m.
On Wed, Aug 4, 2010 at 11:21 PM, Niels Mayer <nielsmayer(a)gmail.com> wrote:
It's works very nice and all, and it's good to
know I can build a jack
app this easily... so how would you go about adding a
spectrogram/waveform display for the samples you display, e.g.
http://www.mega-nerd.com/libsndfile/tools/#spectrogram . And then
using that as a visual reference, be able to zoom and drag out regions
on-top of the waveform or spectrogram.
FYI, the Vala-based spectrogram display, and better decoding options
for sound files is here:
http://www.spek-project.org/
This one talks to gstreamer and ffmpeg and from my quick tests, seems
blazing fast and more functional compared to similar programs using
python (
http://soundviewer.svn.sourceforge.net/viewvc/soundviewer/svt.py?view=marku…
) and http://www.ar.media.kyoto-u.ac.jp/members/david/softwares/audiolab/
(and I can code in a decent/modern language instead of Python).
http://versia.com/category/spek/ (See
http://code.google.com/p/spek/issues/detail?id=40 for spek-0.6
configuration/compilation issues and solution for Fedora12)
///////////////////////////////////
.... use FFmpeg libraries to decode audio files. There are several
reasons for the switch from GStreamer:
GStreamer is a fantastic framework for building complex multimedia
pipelines, however what Spek really needs is a simple decoder and
FFmpeg’s libavformat and libavcodec do just that.
To handle some audio formats (e.g. APE and DTS), GStreamer relies on
FFmpeg anyway, so the switch will result in lesser dependencies. It
doesn’t matter too much on GNU/Linux, but this will reduce the size of
the Windows and Mac OS X installers.
Spek used GStreamer’s spectrum plugin to perform the actual spectral
analysis, with FFmpeg I had to implement it myself. The code I ended
up with is very compact and gives room for a lot of experimentation,
from using different window functions (it’s still Hamming) and working
on performance optimisations to switching to a faster FFT library.
The last bit is actually done, Spek now uses FFTW which in my tests is
1.5x to 2x faster than Kiss FFT used by GStreamer. Apart from that,
FFTW can scale to multiple threads with near linear performance
increase, future versions of Spek will take advantage of this.
UPDATE: As one of commenters pointed out, FFTs on small number of
samples are not very parallelisable and my benchmarks confirm this.
Also, I switched from FFTW to avfft which is built into FFmpeg. It’s a
little bit faster than FFTW for my particular use case. Lastly, 1.5x
to 2x speed up was actually caused by a faster decoder, not by a
faster FFT library.
Another thing that would be hard with GStreamer is static
cross-compilation using mingw-cross-env to produce a single Windows
executable. Because FFmpeg doesn’t employ a plugin architecture,
static linking is not an issue.
Last, but not least, the whole experience was very educational. I now
remember why I loved C back in the days, the trick is to not even
attempt to write any GObject code with it, that’s what Vala is for.
Fast Fourier Transform and the maths behind it is much fun, and NR was
very helpful here.
For the curious, the code is merged to git master and pushed to
Gitorious. The next version of Spek will be released sometime in July.
////////////////////////////////
Niels
http://nielsmayer.com
28 Jul
28 Jul
9:16 p.m.
>>>> "J" == Josh Lawrence
<hardbop200(a)gmail.com> writes:
J> Hi everyone, Does anyone know of a simple application for
J> previewing samples? Something that lists all supported audio
J> files in a given directory, that you can click once and hear the
J> sample? jack support would be necessary.
Dont know if you would term it simple, but Snd has a very useful "-p"
switch to preload all files in a given directory into its
"Files"-browser, where you can hit play or click the file to load it
into the editor.
More info here:
https://ccrma.stanford.edu/software/snd/snd/snd.html#viewfiles
-anders
5245
days inactive
5267
days old
linux-audio-user@lists.linuxaudio.org
24 comments
11 participants
participants (11)
-
andersvi＠notam02.no -
Bernardo Barros -
david -
drew Roberts -
Eric Steinberg -
Harry Van Haaren -
Josh Lawrence -
Natanael Olaiz -
Niels Mayer -
Philipp Überbacher -
rosea grammostola