Linux-audio-user

linux-audio-user@lists.linuxaudio.org

8 participants
20676 discussions

by Sam Tuke

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Hi all, First post here. I wrote a new blog entry yesterday: "Achieve reverse reverb (echo) effect with GNU/Linux audio plugins" https://blogs.fsfe.org/samtuke/?p=599 I used Qtractor and IR.LV2 to recreate an effect like one applied to pianos by the famous electro group Justice. It might be of interest to some of you. Best, Sam. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.13 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iF4EAREIAAYFAlII7o8ACgkQ1bR1Itj7YQVreQD+PIlYFfeT7lDYGxOiA0Cc3Y9P M9gC92WTZ7iBPWDC24IA/Rsddcb/XsTx9rYX0K9/77c3qpc1AVrvC3OTFmy5l3LD =WuoC -----END PGP SIGNATURE-----

12 years, 3 months

[Music] Two little tracks

by Florian Paul Schmidt

Hi, getting back into Renoise a bit lately. So here's two rough cuts. One is more experimental than the other :D https://soundcloud.com/fps-2/check-refrac https://soundcloud.com/fps-2/whence Have fun, Flo

12 years, 3 months

Wires for Empathy Trailer Release (Tube Open Source Video Project)

by Thomas Vecchione

So the Tube project has been chugging along in the background and a new trailer has been released... http://urchn.org/post/wires-for-empathy-trailer All the sounds were recorded on a Tascam DR-40 with a small variety of mics (Built In Mics for a surprising amount, SM57s, and AKG c451/ck94 on a jury rig for a M/S combo). Everything with one exception was done on Linux with Ardour3.3, or git versions near that, the exception being cleaning up the audio (Noise reduction primarily) which sad fact of life is that there isn't much on Linux to compare to even basic tools on Mac or Windows sadly, but will comment more on that some other time. Many thanks to Robin Gaerus for putting up with me over the past couple weeks as I broke and he fixed his wonderful work on the Video Timeline of course:) Seablade

12 years, 3 months

Soviet Classical Radio Stream

by Patrick Shirkey

Hi, Some of you might be interested in a radio stream with Soviet Era Classical. Excellent production quality from that bygone era. All audio digitised and professionally restored using Linux Audio Tools of course. You can access the stream and others from the community directly in your browser via the Radio Station link at http://linux-audio.com. For those of you have text based (no js) interfaces or prefer to use their own player there's a direct link at this site: http://lowcostrestaurantmusic.com It's not a very powerful server but I am interested to see what kind of load it can tolerate. If you notice any glitches or have any other feedback about the selection please let me know. -- Patrick Shirkey Boost Hardware Ltd

12 years, 3 months

Unusual error message when recording

by Kevin Utter

Hi all! I haven't seen this error before, and don't know what it means: subgraph starting at a2j timed out (subgraph_wait_fd=19, status = 0, state = Finished, pollret = 0 revents = 0x0) This occurred when recording the audio from a softsynth played by a MIDI sequence. Applications were: MIDISH, setBfree, Nama, Jackd, and A2JMIDID. It occurs consistently after aprox. 20-25 seconds. A similar error occurs when recording no audio from Jack with Nama: subgraph starting at Nama timed out (subgraph_wait_fd=17, status = 0, state = Running, pollret = 0 revents = 0x0) This is without MIDISH or setBfree. At the same time, Nama responds: **** alsa_pcm: xrun of at least 2.411 msecs zombified - calling shutdown handler At which point Nama has to be stopped with Ctrl-C. This occurs with and without lightdm (desktop manager) running. I'm currently running Jack 1. Previously when running Jack 2, I would get XRuns at the same 20-25 second interval, but recording would continue. I had thought that perhaps the error might be caused because my whole operating system is on a USB disc, in order to keep the rest of the system unchanged, but is this the type of error I would expect in a situation where audio file writing to a perhaps slow disc would give, or is this something else? I probably need to reconsider running from a USB disc, but I wasn't quite ready to play with re-partitioning Windows discs, and playing with dual boot situations yet, although it is still perhaps a better idea. Sorry to be so verbose, but wanted to be thorough. Thanks for any help or suggestions. Kevin

12 years, 3 months

Re: [LAU] Using a USB pedalboard to trigger keystrokes

by Jeff Sandys

I would use one of the Python midi classes to read the midi input and fire the commandline. No soldering required, just a little Python script. http://wiki.python.org/moin/PythonInMusic -- Jeff Sandys Julian said: Hello everyone! Someone told me, that they were intending to get a pedalboard to trigger keystrokes to control some commandline applications. And I've been wondering. ...

12 years, 3 months

Re: [LAU] alsaplayer error using USB Audio DAC

by Len Ovens

On Thu, August 8, 2013 4:10 am, Roger Weinheimer wrote: > **** List of PLAYBACK Hardware Devices **** > card 0: SoundByLayout [SoundByLayout], device 0: Master [] > Subdevices: 1/1 > Subdevice #0: subdevice #0 > card 1: default [USB Audio DAC ], device 0: USB Audio [USB Audio] > Subdevices: 1/1 > Subdevice #0: subdevice #0 > **** List of CAPTURE Hardware Devices **** > card 0: SoundByLayout [SoundByLayout], device 0: Master [] > Subdevices: 1/1 > Subdevice #0: subdevice #0 Ok, going back to your original post :) You do show both cards, good. Your USB card is playback only, but that is what you are trying to do, so that is ok. The portion of /var/lib/alsa/asound.state that you show is for the internal card. That may mean your USB card has no controls which is ok, it just means volume can only be changed at the card or is always "100%". I find alsamixer easiest to use to check that. You used a commandline of: alsaplayer /path/filename.flac Generally for trouble shooting I would hit the card directly: alsaplayer -i hw:1,0 filename.flac aplay --device=hw:1,0 filename.flac may still get errors -- Len Ovens www.OvenWerks.net

12 years, 3 months

Re: [LAU] Linux-audio-user Digest, Vol 78, Issue 2

by Roger Weinheimer

Thanks, Clemens, but no joy. miniG4:~$ cat .asoundrc #pcm.!default { # type hw # card 1 #} # #ctl.!default { # type hw # card 1 #} defaults.pcm.card 1 defaults.ctl.card 1 miniG4:~$ alsaplayer flac/ripit/B/Beatles/Let_It_Be..._Naked/10_Across_The_Universe.flac error on set_format SND_PCM_FORMAT_S16 Unavailable hw params: ACCESS: RW_INTERLEAVED FORMAT: S16_LE SUBFORMAT: STD SAMPLE_BITS: 16 FRAME_BITS: [16 32] CHANNELS: [1 2] RATE: 48000 PERIOD_TIME: [1000 5461334) PERIOD_SIZE: [48 262144] PERIOD_BYTES: [96 524288] PERIODS: [2 1024] BUFFER_TIME: [2000 10922667) BUFFER_SIZE: [96 524288] BUFFER_BYTES: [192 1048576] TICK_TIME: ALL error on set_format SND_PCM_FORMAT_S16 Unavailable hw params: ACCESS: RW_INTERLEAVED FORMAT: S16_LE SUBFORMAT: STD SAMPLE_BITS: 16 FRAME_BITS: [16 32] CHANNELS: [1 2] RATE: 48000 PERIOD_TIME: [1000 5461334) PERIOD_SIZE: [48 262144] PERIOD_BYTES: [96 524288] PERIODS: [2 1024] BUFFER_TIME: [2000 10922667) BUFFER_SIZE: [96 524288] BUFFER_BYTES: [192 1048576] TICK_TIME: ALL failed to configure output device...trying OSS error on set_format SND_PCM_FORMAT_S16 Unavailable hw params: ACCESS: RW_INTERLEAVED FORMAT: S16_LE SUBFORMAT: STD SAMPLE_BITS: 16 FRAME_BITS: [16 32] CHANNELS: [1 2] RATE: 48000 PERIOD_TIME: [1000 5461334) PERIOD_SIZE: [48 262144] PERIOD_BYTES: [96 524288] PERIODS: [2 1024] BUFFER_TIME: [2000 10922667) BUFFER_SIZE: [96 524288] BUFFER_BYTES: [192 1048576] TICK_TIME: ALL error on set_format SND_PCM_FORMAT_S16 Unavailable hw params: ACCESS: RW_INTERLEAVED FORMAT: S16_LE SUBFORMAT: STD SAMPLE_BITS: 16 FRAME_BITS: [16 32] CHANNELS: [1 2] RATE: 48000 PERIOD_TIME: [1000 5461334) PERIOD_SIZE: [48 262144] PERIOD_BYTES: [96 524288] PERIODS: [2 1024] BUFFER_TIME: [2000 10922667) BUFFER_SIZE: [96 524288] BUFFER_BYTES: [192 1048576] TICK_TIME: ALL failed to configure output device...trying OSS miniG4:~$ On Aug 8, 2013, at 3:15 AM, linux-audio-user-request(a)lists.linuxaudio.org wrote: > Message: 18 > Date: Wed, 07 Aug 2013 08:33:47 +0200 > From: Clemens Ladisch <clemens(a)ladisch.de> > To: linux-audio-user(a)lists.linuxaudio.org > Subject: Re: [LAU] alsaplayer error using USB Audio DAC > Message-ID: <5201EA4B.1010705(a)ladisch.de> > Content-Type: text/plain; charset=us-ascii > > Roger Weinheimer wrote: >> ~/.asoundrc >> pcm.!default { >> type hw >> card 1 >> } >> >> ctl.!default { >> type hw >> card 1 >> } > > Replace that with: > > defaults.pcm.card 1 > defaults.ctl.card 1 > > > Regards, > Clemens

12 years, 3 months

Re: [LAU] Linux-audio-user Digest, Vol 78, Issue 2

by Roger Weinheimer

**** List of PLAYBACK Hardware Devices **** card 0: SoundByLayout [SoundByLayout], device 0: Master [] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: default [USB Audio DAC ], device 0: USB Audio [USB Audio] Subdevices: 1/1 Subdevice #0: subdevice #0 **** List of CAPTURE Hardware Devices **** card 0: SoundByLayout [SoundByLayout], device 0: Master [] Subdevices: 1/1 Subdevice #0: subdevice #0 On Aug 8, 2013, at 3:15 AM, linux-audio-user-request(a)lists.linuxaudio.org wrote: > Message: 17 > Date: Tue, 6 Aug 2013 20:47:31 -0700 > From: "Len Ovens" <len(a)ovenwerks.net> > To: linux-audio-user(a)lists.linuxaudio.org > Subject: Re: [LAU] alsaplayer error using USB Audio DAC > Message-ID: > <a38062bad0472967ee159a08208d77b4.squirrel(a)ssl.ovenwerks.net> > Content-Type: text/plain;charset=iso-8859-1 > > > On Tue, August 6, 2013 8:40 pm, Roger Weinheimer wrote: >> Hi All, >> >> I'm an alsa novice with a barely surface knowledge of alsa, and I could >> use some help troubleshooting a problem. I am connecting a Mac Mini (ppc) >> running the following to a Rega DAC. >> >> miniG4:~$ cat /etc/debian_version >> 6.0.7 >> miniG4:~$ uname -a >> Linux miniG4 2.6.32-5-powerpc #1 Fri May 10 08:12:18 UTC 2013 ppc >> GNU/Linux >> miniG4:~$ > > aplay -l gives what? (might as well try arecord -l too) > aplay -l > should list what alsa thinks it has for devices. > > -- > Len Ovens > www.OvenWerks.net

12 years, 3 months

gxtuner 2.1

by hermann meyer

Hi A maintain release of gxtuner is available, thanks goes to the debian project (Jaromír Mikeš) for forwarding the patches. https://sourceforge.net/projects/guitarix/files/gxtuner/

12 years, 3 months

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Linux-audio-user