Linux-audio-user December 2011

linux-audio-user@lists.linuxaudio.org

103 participants
104 discussions

by Dave Phillips

Greetings, http://linux-sound.org/audio/bathyal.mp3 http://linux-sound.org/audio/bathyal.ogg A very simple ambient study created with Jean-Pierre Lemoine's AVSynthesis (sound by Csound) and edited with mhWaveEdit. Best, dp

13 years, 2 months

pulseaudio in realtime mode

by Emanuel Rumpf

I can't start pulseaudio in realtime mode: I: module-jack-sink.c: JACK buffer size changed. I: module-jack-sink.c: JACK thread starting up. I: core-util.c: Successfully enabled SCHED_RR scheduling for thread, with priority 9. I: core-util.c: Successfully enabled SCHED_RR scheduling for thread, with priority 13. W: module-jack-sink.c: JACK error >Cannot use real-time scheduling (RR/67)(1: Operation not permited)< W: module-jack-sink.c: JACK error >JackClient::AcquireSelfRealTime error< But /etc/secuity/limits.conf @audio - rtprio 99 @audio - nice -20 @audio - memlock 6000000 @pulse-rt - rtprio 99 @pulse-rt - nice -20 @pulse-rt - memlock 6000000 groups user user dialout cdrom audio plugdev lpadmin pulse admin sambashare pulse-rt -- E.R.

13 years, 2 months

New arrangement and mix

by Folderol

... of a 3 year old tune. The original is: http://www.musically.me.uk/music/In_Search_Of_The_Lost_Tribes.mp3 and the latest version is: http://soundcloud.com/soft-sounds/in-search-of-the-lost-tribes/download This is not fixed yet. I'm hoping for suggestions. That's also why I've put up just mp3s as I'm casting a wide net :) -- Will J Godfrey http://www.musically.me.uk Say you have a poem and I have a tune. Exchange them and we can both have a poem, a tune, and a song.

13 years, 3 months

Anyone in London/Edinburgh during New Year?

by Louigi Verona

Hey guys! Heading up to London and Edinburgh for New Year (28 Dec - 5 Jan). In case anyone wants to meet up with a fellow linux musician, do drop an email ;) Cheers! -- Louigi Verona http://www.louigiverona.ru/

13 years, 3 months

Re: [LAU] mackie onyx blackjack

by Peter Crighton

So I got the Blackjack for Christmas and it works flawlessly with JACK (playback tested in Ardour and Audacity, I haven't tested recording yet). In Audacity ALSA playback works without problems as well, but it doesn't work with Phonon, it seems. I can't get sound out of VLC, Amarok and the like, it just falls back to my internal soundcard. I am using KDE on Arch Linux with the recent 3.1.5 kernel – any ideas somebody how to fix that? But apart from that I must say that I am impressed and glad that the Blackjack works out of the box with JACK, that's the important thing after all. Can't wait to test recording when I am back at my home. Thanks, drz, for letting us know that the device works. I think I will have some wonderful time with it. And funnily I also had cast an eye on the Rode NT-1A microphone, so that will be my next investment. -- Peter Crighton | (mainly) Progressive Rock musician based in Mainz/Wiesbaden, Germany http://www.petercrighton.de 2011/12/7 drz <drz(a)rizzux.org>: > Am Montag 05 Dezember 2011, 23:14:18 schrieben Sie: >> This is good news! I'm looking for a good USB 2-channel audio >> interface for christmas and I was almost decided on the M-Audio Fast >> Track Pro, which should be working out of the box with a 3.1 kernel, >> too. But I reckon the Mackie is a way better device. It only lacks >> 96kHz recording, but I think I can go without that. >> >> -- >> Peter Crighton | (mainly) Progressive Rock musician based in >> Mainz/Wiesbaden, Germany >> http://www.petercrighton.de >> > > This may be getting OT, because its more of a help in a buy-decision. Sorry > for that. > > First of all, I bet its way better than the Fast Track Pro. Mainly because of > the preamps. But I havent checked the M-Audio out myself. > > But I have to add, that I did not check it out with a realtime kernel. Im on > PowerPC (Powerbook G4) so I think I would have to compile the kernel myself. > (I couldnt find a realtime kernel for PowerPC in the debian repositories, > PowerPC repositories seem not to be that well maintained, cuz its kind of rare > hardware these days, whatever, so Im hesitating fearing to have to struggle > with too many problems, I want to make music rather than kernel compiliing in > my freetime). I record in Cubase (Win XP) if I it depends on latency. > > This brings me to latency, which i didnt really check out in linux yet. > Latency in Windows is no problem at all. But I heard about the lack of a good > working 64-bit Windows 7 driver. So check that out if you are on Windows 7 64- > bit. I once installed it on Windows 7 32-bit and there was no problem > recording in Virtualdub (with Video, camcorder-micros are crap ;) ). > > So what I want to say is, I dont know if realtime kernels depend on special > (and working) features in the driver or if it just works (realtime) if the > driver gets the signals out of the box. > I just tried out recordings in audacity, meaning 'live' recordings. The sound > of the blackjack is great with a decent micro (Rode NT-1A here). > > Greetings to neighbours from Frankfurt/Main > > drz >

13 years, 3 months

Audio stopped working - troubleshooting help

by jonetsu

Hello everyone, The setup has worked for many years. M-Audio 1010LT on Fedora 8. I know, old OS, I should update. Nevertheless, it worked nicely... until yesterday when suddenly mplayer would stop right in its track whne starting to play a .flv file. Same with xine: it freezed at the beginning of an ogg file, w/o any further error msg. Rebooting the machine, a KDE error was shown reporting that the sound device was not there. Indeed, there is no /dev/dsp. And, lspci does not list the audio card. In this case, dmesg reports nothing about the audio card, no good news, no errors. Rebooting a few times shows that sometimes dmesg does report: ACPI: PCI Interrupt 0000:01:06.0[A] -> Link [APC1] -> GSI 16 (level, low) -> IRQ 16 PCI: Setting latency timer of device 0000:01:06.0 to 64 invalid EEPROM version 0 invalid CS8427 signature 0x0: let me try again... unable to find CS8427 signature (expected 0x71, read 0x0), initialization is not completed CS8427 initialization failed ACPI: PCI interrupt for device 0000:01:06.0 disabled ICE1712: probe of 0000:01:06.0 failed with error -14 ... Which is about the 1010lt. At other boot times the dsp device shows up but there's no audio, with 'mplayer -msglevel all=7 <file>' reporting: [AO_ALSA] Playback open error: Connection refused Failed to initialize audio driver 'alsa' AO: [oss] 44100Hz 2ch s16le (2 bytes per sample) Starting playback... What would this be really about ? Is this a case of a failing 1010lt card after so many years ? Can it suddenly fail anyways ? Or is it a power supply that fails to deliver the necessary voltage to the 1010lt ? Or would it be a motherboard whose PCI tracks are getting off the pcboard (or something like that) ? There was no software change made to the Fedora 8 OS. Is there a way to be certain of which component is failing ? Thanks for any suggestions, observations and comments. The audio component of the machine is quite useful and after a day now I already miss it and do not know how to approach this problem. I would not want to go out on a shopping spreee for a new MB (CPU, RAM) or/and new power supply or 1010LT card without knowing what is going on.

13 years, 3 months

Re: [LAU] qjackctl and ubuntu 11.10 unity

by Ralf Madorf

On Thu, 2011-12-29 at 12:00 +0000, linux-audio-user-request(a)lists.linuxaudio.org wrote: > Message: 2 > Date: Wed, 28 Dec 2011 14:20:07 +0100 > From: Hartmut Noack <zettberlin(a)linuxuse.de> > Subject: Re: [LAU] qjackctl and ubuntu 11.10 unity > To: linux-audio-user(a)lists.linuxaudio.org > Message-ID: <4EFB1787.3040804(a)linuxuse.de> > Content-Type: text/plain; charset=UTF-8; format=flowed > > [snip] a DE should be good in handling multiple apps and > their windows simultaneously. Apps that are written in GTK, QT and any > other GUI-set. > > To me that means, that GNOME 3 is not perfect(though perfectly usable) > since I want to keep everything about the 10-15 windows in my sessions > under MY control. I want virtual desktops for Ardours editor and > Ardours mixer and others for Qtractor, Guitarix, Hydrogen you name it. > And I want to be the one who decides what window is on what desktop > and when and how do I switch to another. Usually I have 6 Desktops > involved in audio sessions plus others for Mozilla etc. If session handles should be able to handle the windows size, the windows positions and the work space where windows should appear, than I'll use a session handler too. > Try XFCE I switched to Xfce > or KDE KDE3 was my first choice, but I can't stand KDE4. AND KDE3 was to resource hungry for an old PC I used, it was the perfect desktop for my current PC. KDE3 was able to handle windows size, IIRC also positions, but IIRC it couldn't handle the work space. - Ralf

13 years, 3 months

Best midi/osc controllers for linux?

by Iain Duncan

Hey folks, I'm wondering if people can let me know which pad/knob controllers they know to work well if you're going to use them in home brewed linux rigs. IE, which ones can be configured flexibly to send whatever I want from the pads and knobs, and won't turn out to be kinda useless if I'm not using commercial software with them. thanks! Iain

13 years, 3 months

Re: [LAU] voices from midi

by Jeremiah Benham

Lilypond can convert midi to lilypond and then also produce midi. Lilypond is mainly what I use. In the past I have exported to musicxml in proprietary programs then used lilypond utilities to convert musicxml into midi. Jeremiah Sent from my Samsung smartphone on AT&T "S. Massy" <lists(a)wolfdream.ca> wrote: >On Thu, Dec 29, 2011 at 08:39:16AM +0530, Rustom Mody wrote: >> On Thu, Dec 29, 2011 at 1:20 AM, Jeremiah Benham <jjbenham(a)chicagoguitar.com >> > wrote: >> >> > I am not aware of an application that does this. What do you need this for? >> > >> > Jeremiah >> > >> >> I have lots of music typed into nted -- probably 100s of hours of work. >> I need to port this to... well shall we say... more portable applications? >> I like to use linux and nted is a sweet app. >> But to expect my music-buddies to know how to spell "linux", or that OS and >> Windows are not synonymous is faintly ridiculous. For that it looks like >> musescore fits the bill. I work on linux they work on windows (some macs) >> and there are not conflicts when we swap music. >> >> If I could get things out via lilypond or musicxml that would be ideal but >> neither work. >> >> So midi is the only (constricted) pipeline between nted and musescore. >I have no idea how useful/convenient this could be, but have you >considered abc? >http://abc.sf.net > >I believe there are other options out there for converting midi to >textual representation and back, but, once again, I really don't know >how useful any of it would be in this context. > >Cheers, >S.M.

13 years, 3 months

Re: [LAU] ALSA device/resource busy when using alsa-jack plugin

by James Morris

On 29 December 2011 13:54, James Warden <warjamy(a)yahoo.com> wrote: > Hello James, > > I have no problem with this (using the aloop trick of mine). > Here is my command line: > > ./arnold -fps 62 -soundplugin ALSA -kbdtype 0 What version of arnold are you using? The -fps option is unrecognised here. I'm using the latest in Arch's AUR: arnold 2009.03.17-2 (also the most recent dl on berlios.de). Disabled Pulse in the PKGBUILD. I've found it necessary to give it the ALSA option - which works when nothing else is using sound, but I thought DMIX was supposed to take care of things when something else was using sound? When arnold successfully has sound, it blocks other programs from using sound (ALSA). Is there something in the ALSA API which means programs can block/be blocked by the usage of DMIX? If so, are there reasons programs would require to do so? Or could I just change the code to use the more DMIX/ALSA-JACK-plugin friendly methods (assuming there are some)? Cheers, James > I started arnold after the whole ALSA-bridge shebang. > > I attach a small sound sample I recorded in ardour from the "cloop" alsa_in > client. > > You may have something blocking the sound device ? > > J. > > > ________________________________ > From: James Morris <jwm.art.net(a)gmail.com> > To: LAU <linux-audio-user(a)lists.linuxaudio.org> > Sent: Thursday, December 29, 2011 12:18 PM > Subject: [LAU] ALSA device/resource busy when using alsa-jack plugin > > Hi, > > I want to record some sound from arnold (a CPC emulator) which has > ALSA output. Unfortunately when using the alsa-jack plugin, arnold > says: > > Playback open error: Device or resource busy > > So I then tried the "Jack and Loopback device as Alsa-to-Jack bridge" > as referenced in the JACK FAQ but still the same busy message. > > Does anyone know why the asoundrc trickery does not work for this > application and if anything can be done? > > Arnold has not been developed since 2009 so I'm wondering if it is > using a deprecated way of using ALSA? > > > > > Cheers, > James. > _______________________________________________ > Linux-audio-user mailing list > Linux-audio-user(a)lists.linuxaudio.org > http://lists.linuxaudio.org/listinfo/linux-audio-user > >

13 years, 3 months

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Linux-audio-user December 2011