sweep-users — Discussions about using Sweep

[sweep-users] just installed sweep on debian 9, cannot hear sound through my hdmi, only through direct computer port

[Dan H. <dan...@gm...>]

sweep exists as a package in the debian 9 system ("stretch").

So i installed version 0.9.3 to try it out.

It seems to correctly display sound files, and looks like it has a
bunch of useful features, but it does not play through my hdmi.

Other sound playing software (such as audacity and mpv) do play
through hdmi, so i think my audio is functional.

For the audio configuration, from Playback > Configure Audio Device,
there are four options:
    plughw:0,0
    plughw:0,1
    plughw:1,0
    plughw:1,1

Of these, 0,0 plays through the direct computer port.  01, and 1,1
give errors if i try to play.  1,0 acts as though it is playing, but i
don't hear anything.

I would like to play all my audio through the hdmi (because sometimes
i attach a different computer to it so it is more convenient that
way).

Thanks in advance for any clues!

dan

Re: [sweep-users] sweep 0.9.3 does not compile on Fedora Core 5

[Erik de C. L. <ml...@me...>]

Joao Moreira wrote:

> Hi Erik,
> 
> Erik de Castro Lopo wrote:
> > Does line 116 look like this? :
> >
> >     extern GtkRecentManager *recent_manager;
> >
> > If so then it seems like something is wrong with your GTK headers
> > and the compiler cannot find a definition for GtkRecent Manager.
> >   
> Thanks for your reply, you were right of course : I had gtk+-2.9.4 on my
> Fedora 5, and after upgrading to gtk+-2.12.12, now it works. Apparently
> GtkRecent Manager was introduced in gtk+-2.10.x.

Thanks for the feedback.

I have just updated the configure.ac file in SVN to check for libgtk+-2.0
version 2.10.0 or greater.

Cheers,
Erik
-- 
-----------------------------------------------------------------
Erik de Castro Lopo
-----------------------------------------------------------------
Open Source and Free Software means that you never sacrifice quality
of the code for meeting deadlines set up by people not participating
directly in the software development process.

Re: [sweep-users] sweep 0.9.3 does not compile on Fedora Core 5

[Joao M. <joa...@fr...>]

HI Erik,

Erik de Castro Lopo wrote:
> Does line 116 look like this? :
>
>     extern GtkRecentManager *recent_manager;
>
> If so then it seems like something is wrong with your GTK headers
> and the compiler cannot find a definition for GtkRecent Manager.
>   
Thanks for your reply, you were right of course : I had gtk+-2.9.4 on my
Fedora 5, and after upgrading to gtk+-2.12.12, now it works. Apparently
GtkRecent Manager was introduced in gtk+-2.10.x.

Thanks again,
Joao


-- 
Joao Moreira de Sa Coutinho
joa...@fr...
Tel.: 08.70.23.48.29
Mob.: 06.28.90.83.67

Re: [sweep-users] sweep 0.9.3 does not compile on Fedora Core 5

[Erik de C. L. <ml...@me...>]

Joao Moreira wrote:

> view.c:116: error: expected '=', ',', ';', 'asm' or '__attribute__' 
> before '*' token
> make[3]: *** [sweep-view.o] Error 1
> 
> Any suggestions on how I can fix this ?

Does line 116 look like this? :

    extern GtkRecentManager *recent_manager;

If so then it seems like something is wrong with your GTK headers
and the compiler cannot find a definition for GtkRecent Manager.

Erik
-- 
-----------------------------------------------------------------
Erik de Castro Lopo
-----------------------------------------------------------------
"Perl - The only language that looks the same before and after
RSA encryption." -- Keith Bostic

[sweep-users] sweep 0.9.3 does not compile on Fedora Core 5

[Joao M. <joa...@fr...>]

Hi,

I just installed sweep-0.9.3 on a Fedora Core 5 system, gcc is 4.1.0.
It fails to compile with an error in view.c :

if gcc -DHAVE_CONFIG_H -I. -I. -I.. -I../intl -I../include -I../src/tdb 
-I/w/u/libsndfile-1.0.17/include -I/w/u/sweep-0.9.3/include 
-I/w/u/sweep-0.9.3/include -I/w/u/libsamplerate-0.1.4/include 
-I/w/u/glib-2.14.5/include/glib-2.0 
-I/w/u/glib-2.14.5/lib/glib-2.0/include 
-I/w/u/atk-1.10.3/include/atk-1.0 -I/w/u/pango-1.13.0/include/pango-1.0 
-I/usr/include/cairo -I/w/u/cairo-1.6.4/include/cairo 
-I/usr/include/gtk-2.0 -I/usr/lib/gtk-2.0/include 
-I/w/u/glib-2.14.5/include/glib-2.0 
-I/w/u/glib-2.14.5/lib/glib-2.0/include -pthread 
-I/w/u/glib-2.14.5/include/glib-2.0 
-I/w/u/glib-2.14.5/lib/glib-2.0/include -I/usr/include/alsa    
-I/w7/u/libmad-0.15.1b/include -I/w/u/speex-1.2rc1/include 
-DPACKAGE_DATA_DIR='"/w/u/sweep-0.9.3/share/sweep"' -g -O2 -Wall -MT 
sweep-view.o -MD -MP -MF ".deps/sweep-view.Tpo" -c -o sweep-view.o `test 
-f 'view.c' || echo './'`view.c; \
then mv -f ".deps/sweep-view.Tpo" ".deps/sweep-view.Po"; else rm -f 
".deps/sweep-view.Tpo"; exit 1; fi
view.c:116: error: expected '=', ',', ';', 'asm' or '__attribute__' 
before '*' token
make[3]: *** [sweep-view.o] Error 1

Any suggestions on how I can fix this ?

Thanks,
Joao

-- 
Joao Moreira de Sa Coutinho
joa...@fr...
Tel.: 08.70.23.48.29
Mob.: 06.28.90.83.67

[sweep-users] Sweep 0.9.3 released

[pete s. <zen...@ze...>]

Fri April 11 2008 -- Sweep 0.9.3 Released
=======================================

Sweep is an audio editor and live playback tool for GNU/Linux, BSD and
compatible systems. It supports many music and voice formats including
WAV, AIFF, Ogg Vorbis, Speex and MP3, with multichannel editing and
LADSPA effects plugins. Inside lives a pesky little virtual stylus called
Scrubby who enjoys mixing around in your files.

This release is available as a source tarball at:

    http://prdownloads.sourceforge.net/sweep/sweep-0.9.3.tar.gz?download


New in this release
-------------------

This is a bug fix release, containing the following changes:
		
	* Fixed bounds checking of mode in speex header. relates to:
	  http://www.ocert.org/advisories/ocert-2008-2.html
	* Fixed bug preventing device dialog being reopened when
	  closed via the window manager.

All users with speex handling enabled should upgrade.

Further information
-------------------

Screenshots:

    http://www.metadecks.org/software/sweep/screenshots/

Some interesting audio recordings of Scrubby are at:

    http://www.metadecks.org/software/sweep/demos.html

Sweep is designed to be intuitive and to give you full control. It includes
almost everything you would expect in a sample editor, and then some:

	* precise, vinyl like scrubbing
	* looped, reverse, and pitch-controlled playback
	* playback mixing of unlimited independent tracks
	* looped and reverse recording
	* internationalisation
	* multichannel and 32 bit floating point PCM file support
	* support for Ogg Vorbis, MP3 and Speex compressed audio files
	* sample rate conversion and channel operations
	* LADSPA 1.1 effects support
	* multiple views, discontinuous selections
	* easy keybindings, mouse wheel zooming
	* unlimited undo/redo with fully revertible edit history
	* multithreaded background processing
	* shaded peak/mean waveform rendering, multiple colour schemes

Sweep is Free Software, available under the GNU General Public License.

More information is available at:

    http://www.metadecks.org/software/sweep/

Thanks to Pixar Animation Studios and CSIRO Australia for supporting the
development of this project.

enjoy :)

Re: [sweep-users] sweep 0.9.2-0ubuntu1 crashing under eeeXubuntu

[pete s. <zen...@ze...>]

On Thu, 21 Feb 2008 12:48:18 +1100
Erik de Castro Lopo <ml...@me...> wrote:

> k9d wrote:
> 
> > Sweep is then displaying the wave form and I can play with the menu
> > options. However, if I try and hightlight the wave form and play the
> > sound, sweep will instantly crash and disappear.
> 
> Ok, thats definitely a bug. It shouldn't just crash and disappear.

i wonder if this is related to the problems with the alsa
float plugin on ubuntu. it still seems to be missing and i vaguely
remember seeing some instantaneous crashes when pressing play.
although now, it doesn't do anything but output an error message
to stderr.

> Does it do the same thing if you don't highlight a section of the file
> and just press play?
> 
> > If I hit Playback -> Play sample I get a dialog "Error opening ALSA
> > device plughw:0,0 Device or resource busy"
> 
> This is almost certain due to something like ESD or PulseAudio grabbing
> the audio device stopping Sweep from accessing it.
> 
> > Does anyone know how to trouble shoot this?

try running sweep from a terminal. if there is any output when
it crashes, post it back here. i can also help you to get a gdb
backtrace, strace log, install debugging libs and build sweep
from source but i'd prefer to do that off list so just email
me if you want to try any of those.
 
> Try to find 'esd' or 'pulseaudio' among the running processes and kill
> it/them. If Sweep then works as its supposed to then that is (an 
> admittedly poor) solution. A better solution might be to enable esd/
> pulseaudio and then try to get Sweep to use the dmix output instead
> of plughw.

it could also be jackd, or any other audio app already running.
run this in a terminal after you have tried running sweep and
seen the "Device or resource busy" error:

 lsof /dev/snd/*

and post the output back here. 
 

cheers,
pete.

[sweep-users] sweep 0.9.2-0ubuntu1 crashing under eeeXubuntu

[k9d <cog...@gm...>]

> k9d wrote:
 >  > options. However, if I try and hightlight the wave form and play the
 >  > sound, sweep will instantly crash and disappear.
 >
 >  Ok, thats definitely a bug. It shouldn't just crash and disappear.
 >
 >  Does it do the same thing if you don't highlight a section of the file
 >  and just press play?
 >

 yes, actually when i click on the waveform with the Selector Tool or
 Scrubby is when sweep crashes, i can click and drag around fine with
 the Hand Tool.



 >  > If I hit Playback -> Play sample I get a dialog "Error opening ALSA
 >  > device plughw:0,0 Device or resource busy"
 >
 >  This is almost certain due to something like ESD or PulseAudio grabbing
 >  the audio device stopping Sweep from accessing it.
 >

 hmm, any other common sound servers? maybe xfce or ubuntus default
 sound server? i don't see ESD or PulseAudio in my running processes.

 Thanks for the quick reply! Hope to get this sorted =)



 Jordan

 --
 http://mp3death.us/~k9d/



-- 
http://mp3death.us/~k9d/

Re: [sweep-users] sweep 0.9.2-0ubuntu1 crashing under eeeXubuntu

[Erik de C. L. <ml...@me...>]

k9d wrote:

> Sweep is then displaying the wave form and I can play with the menu
> options. However, if I try and hightlight the wave form and play the
> sound, sweep will instantly crash and disappear.

Ok, thats definitely a bug. It shouldn't just crash and disappear.

Does it do the same thing if you don't highlight a section of the file
and just press play?

> If I hit Playback -> Play sample I get a dialog "Error opening ALSA
> device plughw:0,0 Device or resource busy"

This is almost certain due to something like ESD or PulseAudio grabbing
the audio device stopping Sweep from accessing it.

> Does anyone know how to trouble shoot this?

Try to find 'esd' or 'pulseaudio' among the running processes and kill
it/them. If Sweep then works as its supposed to then that is (an 
admittedly poor) solution. A better solution might be to enable esd/
pulseaudio and then try to get Sweep to use the dmix output instead
of plughw.

HTH,
Erik
-- 
-----------------------------------------------------------------
Erik de Castro Lopo
-----------------------------------------------------------------
"I am astonished by President Bush when he claims there is nothing in
the Koran that justifies jihad violence in the name of Islam. Is he
some kind of Islamic scholar? Has he ever actually read the Koran?"
-- Abu Qatada, Islamic Jihadist

[sweep-users] sweep 0.9.2-0ubuntu1 crashing under eeeXubuntu

[k9d <cog...@gm...>]

Hi All

For a while now sweep has been my favorite native wav editor when i'm
running linux (wavosaur is my boy when i'm in windows). Now I am
having trouble getting sweep to play audio on my little EEE machine
from ASUS.

The distro I'm running on my EEE is eeeXubuntu (which is based on
Xubuntu 7.10) and I have the following packages installed:

sweep 0.9.2-0ubuntu1
libsndfile1 1.0.17-4
libsamplerate0 0.1.2-5
libtdb 1.1.0-1
libmad0 0.15.1b-21ubuntu1

I don't know if I have GTK2+ installed

When I start sweep I'm able to choose Load existing file -> highlight mp3 -> ok

Sweep is then displaying the wave form and I can play with the menu
options. However, if I try and hightlight the wave form and play the
sound, sweep will instantly crash and disappear.

If I hit Playback -> Play sample I get a dialog "Error opening ALSA
device plughw:0,0 Device or resource busy"

Does anyone know how to trouble shoot this? Should I scrap the
0.9.2-0ubuntu1 deb and just build sweep for myself (maybe worth the
extra effort to be on the bleed edge of updates anyway?)

Thanks in advance and hope to hear back soon!

Jordan

-- 
http://mp3death.us/~k9d/

Re: [sweep-users] Sweep 0.9.2 and the --disable-alsa Switch

[pete <zen...@ze...>]

On Mon, 24 Sep 2007 02:43:50 +0100
pete <zen...@ze...> wrote:

> even if it's only to better serve niche use
> cases, i should probably look into making all
> applicable drivers available at run time, even
> if they aren't fully modularisabliated..
> 
> i made an attempt at modularisation but ran into
> problems with the jack driver. (which opts for
> what i think is properly referred to as a layer
> violation, in order to get around limitations of
> the existing driver api) 

i just had another go at this and it looks as 
though i managed to fight the jack encroachment
all the way back to driver_jack.c by slightly
extending the driver API. (i imagine torben was
reluctant to alter the API for one reason or 
another).  driver_jack.h was vanquished along
the way too.

good news for run time driver selection then.

the jack branch is way out of sync so i'll commit
there after i sort that out. man.. just look at
all those branches rotting away. :(

cheeorz
pete.

Re: [sweep-users] Sweep 0.9.2 and the --disable-alsa Switch

[pete <zen...@ze...>]

On Sat, 22 Sep 2007 22:53:07 +0100
Heimo Claasen <ha...@re...> wrote:

> A broken HD flushed my "old" and well-running
> install (of 0.8.x); and I'm rather tired of all
> the time searching for bits and pieces and
> recompiling - is there a reasonable
> running .rpm somewhere ? And which is _NOT_
> using ALSA ?

short of googling for it myself, i have no idea,
sorry.
 
> For other reasons I had/have to use OSS (YAREC,
> the really good=practical recorder hasn't been
> well adapted to ALSA); and there are hardware
> issues with the preferred AUMIXer and ALSA too.

s'all greek to me but i'll take your word for it
and not bore you with moot suggestions. 

even if it's only to better serve niche use cases,
i should probably look into making all applicable
drivers available at run time, even if they aren't
fully modularisabliated..

i made an attempt at modularisation but ran into
problems with the jack driver. (which opts for
what i think is properly referred to as a layer
violation, in order to get around limitations of
the existing driver api) i'm also an idiot. which
isn't the greatest aid to progress either :)

pete.

Re: [sweep-users] Sweep 0.9.2 and the --disable-alsa Switch

[Heimo C. <ha...@re...>]

A broken HD flushed my "old" and well-running install (of 0.8.x); and
I'm rather tired of all the time searching for bits and pieces and
recompiling - is there a reasonable running .rpm somewhere ?
And which is _NOT_ using ALSA ?

For other reasons I had/have to use OSS (YAREC, the really good=practical
recorder hasn't been well adapted to ALSA); and there are hardware issues
with the preferred AUMIXer and ALSA too.

-hc

Re: [sweep-users] Sweep 0.9.2 and the --disable-alsa Switch

[pete s. <zen...@ze...>]

On Wed, 19 Sep 2007 20:07:45 +0100
pete shorthose <zen...@ze...> wrote:

> On Tue, 18 Sep 2007 17:28:37 -0700 (PDT)
> jr <dia...@ya...> wrote:
> 
> > I am trying to configure Sweep 0.9.2 to use OSS and './configure --disable-alsa' produces these results:
> > 
> >   ************************************************************
> >  * Sweep 0.9.2:  Automatic configuration OK.
> > **
> > **  Configuration summary:
> > **
> > **     Experimental code: ....... no
> > **     Audio device handling: ... ALSA
> > 
> > Am I doing something wrong?
> 
> i don't think so.  i get the same results here at least.
> 
> i'll check the autoconf script in an hour or and so and if it
> is broken, i get you a patch shortly thereafter.

yep. it was broken. patch is attached and svn has been updated too.
sorry about that. let me know if you have any further problems and 
thanks for the heads up.

cheers,
pete.

Re: [sweep-users] Sweep 0.9.2 and the --disable-alsa Switch

[pete s. <zen...@ze...>]

On Tue, 18 Sep 2007 17:28:37 -0700 (PDT)
jr <dia...@ya...> wrote:

> I am trying to configure Sweep 0.9.2 to use OSS and './configure --disable-alsa' produces these results:
> 
>   ************************************************************
>  * Sweep 0.9.2:  Automatic configuration OK.
> **
> **  Configuration summary:
> **
> **     Experimental code: ....... no
> **     Audio device handling: ... ALSA
> 
> Am I doing something wrong?

i don't think so.  i get the same results here at least.

i'll check the autoconf script in an hour or and so and if it
is broken, i get you a patch shortly thereafter.

you might want to sign up to the mailing list.
posts from non subscribed addresses are held for 5 days
for list moderators to check and then automatically deleted
if they aren't explicitly approved. 
as 99.9% of posts are spam, it's possible that i may
occasionally miss legitimate posts.

:)

cheers,
pete.

[sweep-users] Sweep 0.9.2 and the --disable-alsa Switch

[jr <dia...@ya...>]

I am trying to configure Sweep 0.9.2 to use OSS and './configure --disable-alsa' produces these results:

  ************************************************************
 * Sweep 0.9.2:  Automatic configuration OK.
**
**  Configuration summary:
**
**     Experimental code: ....... no
**     Audio device handling: ... ALSA

Am I doing something wrong?

       
---------------------------------
Catch up on fall's hot new shows on Yahoo! TV.  Watch previews, get listings, and more!

[sweep-users] temporary fix for sweep 0.9.2 / libasound2 in ubuntu gusty gibbon

[pete s. <zen...@ze...>]

0.9.2 is available in the universe repository of gusty gibbon (tribe 5 is the latest alpha iirc).
unfortunately, a bug in the libasound2 package prevented
the lfloat plugin from being built and this is required
by sweep so playback crashes sweep. 
as a temporary work around, you can install the libasound2 (and possibly the libasound2-dev package if you need that) from debian, where this problem is fixed.
presumably this will be fixed in the ubuntu packages
at some point. (a bug report has been filed)

deb package is here:
http://packages.debian.org/lenny/i386/libs/libasound2


i've installed this myself and i've not noticed any adverse effects but i don't guarantee that using the deb package won't cause problems. :)

cheers,
pete.

Re: [sweep-users] Sweep 0.9.2 freezes on FC5

[pete <zen...@ze...>]

On Thu, 2007-02-15 at 22:48 +0100, MachineVictim wrote:
> Hi,
> I read about freezings on FC5. I have the same problems too, but i don't 
> know how to fix them. Everytime I set the ALSA device on 'plughw:0,0' 
> the app freezes; I think the other plughw options are unabled on my pc, 
> because i receive a 'not found' message or the-like.
> I don't know if i have to upgrade my alsa package but on repositories i 
> found nothing (you konw, i'm a newbie, i will install alsa by source 
> only if it is necessary :)), but if you know how to fix it without 
> upgrading could be better
> so, giving 'cat /proc/asound/version' I receive:
> 
> Advanced Linux Sound Architecture Driver Version 1.0.12rc1 (Thu Jun 22 
> 13:55:50 2006 UTC).
> 
> Any advice!?
> PS. Sweep is a cool software, it's exactly what i was searching for...

Hi. sorry about the delay in moderating your post, i overlooked it
in the sea of spam. 

i installed FC5 just before releasing 0.9.2 in the hopes of either
fixing this (assuming sweep has any part in the problem) or
seeing if an alsa up/downgrade would fix it. as luck wouldn't have
it, sweep worked perfectly so i was non the wiser. :/


i'll go back and have another look at it. could you run sweep
from a terminal and post any interesting output to the list
(and or/me)

cheers,
pete.

[sweep-users] Sweep 0.9.2 freezes on FC5

[MachineVictim <mac...@gm...>]

Hi,
I read about freezings on FC5. I have the same problems too, but i don't 
know how to fix them. Everytime I set the ALSA device on 'plughw:0,0' 
the app freezes; I think the other plughw options are unabled on my pc, 
because i receive a 'not found' message or the-like.
I don't know if i have to upgrade my alsa package but on repositories i 
found nothing (you konw, i'm a newbie, i will install alsa by source 
only if it is necessary :)), but if you know how to fix it without 
upgrading could be better
so, giving 'cat /proc/asound/version' I receive:

Advanced Linux Sound Architecture Driver Version 1.0.12rc1 (Thu Jun 22 
13:55:50 2006 UTC).

Any advice!?
PS. Sweep is a cool software, it's exactly what i was searching for...

Thanx,
Antonio

[sweep-users] Sweep 0.9.2 Released

[peter <zen...@ze...>]

Wed Feb 7 2007 -- Sweep 0.9.2 Released
=======================================

Sweep is an audio editor and live playback tool for GNU/Linux, BSD and
compatible systems. It supports many music and voice formats including
WAV, AIFF, Ogg Vorbis, Speex and MP3, with multichannel editing and
LADSPA effects plugins. Inside lives a pesky little virtual stylus
called
Scrubby who enjoys mixing around in your files.

This release is available as a source tarball at:

    http://prdownloads.sourceforge.net/sweep/sweep-0.9.2.tar.gz?download


New in this release
-------------------

	* ALSA is now the default driver. see README.OSS for oss
	* minimum supported gtk version raised to 2.4 
	* added the "hand tool" for panning the display with inertia
	  (Radoslaw Korzeniewski)
	* can now open multiple files via the gtk file selector
	* implemented accel editing via the usual gtk method
	* added tdb lock override (Takashi Iwai)
	* remove support for libsndfile0 (Erik de Castro Lopo)
	* remove direct flac support as it's supported by libsndfile now
	  (Erik de Castro Lopo)
	* added a new splash screen (Pascal Klein)
	* fix segfault when closing windows while others were still loading
	* other bugs addressed and changes made. run "svn log" on a copy of svn
	  trunk for details, or check http://trac.metadecks.org/timeline

Further information
-------------------

Screenshots:

    http://www.metadecks.org/software/sweep/screenshots/

Some interesting audio recordings of Scrubby are at:

    http://www.metadecks.org/software/sweep/demos.html

Sweep is designed to be intuitive and to give you full control. It
includes
almost everything you would expect in a sample editor, and then some:

	* precise, vinyl like scrubbing
	* looped, reverse, and pitch-controlled playback
	* playback mixing of unlimited independent tracks
	* looped and reverse recording
	* internationalisation
	* multichannel and 32 bit floating point PCM file support
	* support for Ogg Vorbis, MP3 and Speex compressed audio files
	* sample rate conversion and channel operations
	* LADSPA 1.1 effects support
	* multiple views, discontinuous selections
	* easy keybindings, mouse wheel zooming
	* unlimited undo/redo with fully revertible edit history
	* multithreaded background processing
	* shaded peak/mean waveform rendering, multiple colour schemes

Sweep is Free Software, available under the GNU General Public License.

More information is available at:

    http://www.metadecks.org/software/sweep/

Thanks to Pixar Animation Studios and CSIRO Australia for supporting the
development of this project.

enjoy :)

[sweep-users] pending 0.9.2 release

[pete <zen...@ze...>]

Lo folks

0.9.2 is about to drop. here's a release candidate
in case anyone has time to test it in the next day
or so.

http://www.zenadsl6252.zen.co.uk/sweep-0.9.2-rc1.tar.gz

if you've been following progress on the dev list or svn
then there's nothing new to you here. see:
http://trac.metadecks.org/browser/sweep/trunk/release_notes/sweep-0.9.2.txt
for an overview of significant changes made since 0.9.1.

cheers,
pete.

Re: [sweep-users] Sweep running under jack

[Conrad P. <co...@me...>]

On 23/12/06, pete <zen...@ze...> wrote:
> On Fri, 2006-12-22 at 12:33 +1100, Erik de Castro Lopo wrote:
> > peter wrote:
> >
> > > svn co http://svn.metadecks.org/sweep/branches/sweep-jack-testing
> > >  will get you the closest we have to a jackified sweep. there's no jack
> > > input (recording) yet and if you playback files that have a different
> > > samplerate to your running jackd then it won't sound too good given
> > > sweeps rather noisy resampling.
> >
> > When running with Jack output and the user attempts to open
> > a file at a different sample rate, I think it would be a really
> > good idea to either fail with an error dialog and/or ask
> > the user to sample rate convert it to the jack sample rate
> > using libsamplerate.
>
> well, correct me if i'm wrong but, couldn't we use libsamplerate on the
> fly to convert where needed at all output stages?
> we could have options to select the converter, optional obstructive
> warning dialogs (for the paranoid and forgetful) and some sort of
> visual indicator that highlights when source and output rates
> don't match?
>
> it's not just useful for jack either, the alsa plug layer resampler is
> limited by (current) design to linear interpolation iirc, so application
> side resampling (albeit via libsamplerate) would be a improvement there
> too.
>
> i was also wondering if we could use libsamplerate to handle scrubbing?

yeah, libsamplerate would be good for both these uses :-)

The current architecture (doing very cheap interpolation) was done
around 2001 or so. I reckon we can afford the CPU to do better quality
rate conversion now ;-)

cheers,

Conrad.

Re: [sweep-users] Sweep running under jack

[pete <zen...@ze...>]

On Fri, 2006-12-22 at 12:33 +1100, Erik de Castro Lopo wrote:
> peter wrote:
> 
> > svn co http://svn.metadecks.org/sweep/branches/sweep-jack-testing
> >  will get you the closest we have to a jackified sweep. there's no jack 
> > input (recording) yet and if you playback files that have a different
> > samplerate to your running jackd then it won't sound too good given
> > sweeps rather noisy resampling.
> 
> When running with Jack output and the user attempts to open
> a file at a different sample rate, I think it would be a really
> good idea to either fail with an error dialog and/or ask
> the user to sample rate convert it to the jack sample rate
> using libsamplerate.

well, correct me if i'm wrong but, couldn't we use libsamplerate on the
fly to convert where needed at all output stages?
we could have options to select the converter, optional obstructive 
warning dialogs (for the paranoid and forgetful) and some sort of
visual indicator that highlights when source and output rates
don't match?

it's not just useful for jack either, the alsa plug layer resampler is
limited by (current) design to linear interpolation iirc, so application
side resampling (albeit via libsamplerate) would be a improvement there
too.

i was also wondering if we could use libsamplerate to handle scrubbing?


pete.

Re: [sweep-users] Sweep running under jack

[Erik de C. L. <ml...@me...>]

peter wrote:

> svn co http://svn.metadecks.org/sweep/branches/sweep-jack-testing
>  will get you the closest we have to a jackified sweep. there's no jack 
> input (recording) yet and if you playback files that have a different
> samplerate to your running jackd then it won't sound too good given
> sweeps rather noisy resampling.

When running with Jack output and the user attempts to open
a file at a different sample rate, I think it would be a really
good idea to either fail with an error dialog and/or ask
the user to sample rate convert it to the jack sample rate
using libsamplerate.

Erik
-- 
+-----------------------------------------------------------+
  Erik de Castro Lopo
+-----------------------------------------------------------+
"One of Subversions biggest weaknesses is its lack of adequate internal
tracking for merges." -- William Nagle in "Subversion Version Control"

Re: [sweep-users] Sweep running under jack

[peter <zen...@ze...>]

> What's the right patch cocktail and/or svn path in order to get sweep working with jack?
> 
> I saw a jack-test branch but couldn't tell if it'd been merged into trunk yet, or which was earlier/later, or if that's even the right thing to be using.

svn co http://svn.metadecks.org/sweep/branches/sweep-jack-testing
 will get you the closest we have to a jackified sweep. there's no jack 
input (recording) yet and if you playback files that have a different
samplerate to your running jackd then it won't sound too good given
sweeps rather noisy resampling. basically, it's not ready for production
use. of course if you do use it and find bugs, please report them :)

cheers,
pete.