Linux-audio-user March 2015

linux-audio-user@lists.linuxaudio.org

56 participants
56 discussions

by Russell Hanaghan

Are there any real benefits to building software on your local machine vs installing binaries, in this case all largely Ubuntu based? I've finally got this old mackbook 1,1 (Nov 2006 white 13") running linux audio with comparable results to its native OSx 10.6. Whatevah Snow LeopRd was. Set up dual boot. Basically installed "Linux-lite", pulled in kxstudio goodies and kernel. 3.13 seems to work best on T2500 dual core @ 2ghz. I can run 12 live tracks recording at 44.1/24 with 128/2 & almost zero xruns. Lots of neat hardware in the Mac for a 'puter of this vintage ... Only 32 bit. Processor is 64bit but some EFI issue I believe, kills ability to boot 64bit systems. I've removed lots of software I won't use on it like cups, samba, misc daemons nibbling away at memory n cycles. Xfce desktop. Can I gain any performance from building certain software on the machine? Mostly, I guess low or more efficient resource usage. Kernel included. Right now running SMP lowtatency kernel. I'm still if the belief that a RT kernel would be better but obviously in the deb world, not so many available. Thanks for any input. ~ Russell

10 years, 2 months

QJackCtl starts up with message window displaying this message

by david

Hi! When QJackCtl starts up now, it always displays the message window with this showing in it: 21:30:58.980 Patchbay deactivated. 21:30:58.999 Statistics reset. 21:30:59.007 Could not open ALSA sequencer as a client. ALSA MIDI patchbay will be not available. ALSA lib seq_hw.c:457:(snd_seq_hw_open) open /dev/snd/seq failed: No such file or directory Cannot connect to server socket err = No such file or directory Cannot connect to server request channel jack server is not running or cannot be started Happens whether I've got it set to use RAW or SEQ midi. I don't have QJackCtl set to start JACK on startup, I start it manually. When I start it manually, it starts up and everything audio works fine. But if I set it to use SEQ, there are no entries in MIDI or ALSA tab. If I set it to use RAW, it finds my E-MU XMidiX1 and adds 1 in and 1 out port. That puts only 1 midi_capture_1 port on the MIDI tab, though. It apparently no longer finds it as an outport (I can tell because the OUT port light on my interface doesn't come on. These are the snd kernel modules lsmod shows: snd_usb_audio 132946 2 snd_usbmidi_lib 19427 1 snd_usb_audio snd_rawmidi 18422 1 snd_usbmidi_lib snd_seq_device 5371 1 snd_rawmidi snd_hda_codec_via 19628 1 snd_hda_codec_hdmi 36654 1 snd_hda_codec_generic 51198 1 snd_hda_codec_via snd_hda_intel 21867 4 snd_hda_controller 17418 1 snd_hda_intel snd_hda_codec 89695 5 snd_hda_codec_hdmi,snd_hda_codec_via,snd_hda_codec_generic,snd_hda_intel,snd_hda_controller snd_hwdep 6228 2 snd_usb_audio,snd_hda_codec snd_pcm 78539 5 snd_usb_audio,snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_controller snd_timer 18102 1 snd_pcm snd 58113 24 snd_usb_audio,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_hda_codec_via,snd_pcm,snd_rawmidi,snd_hda_codec_generic,snd_usbmidi_lib,snd_hda_codec,snd_hda_intel,snd_seq_device soundcore 5359 2 snd,snd_hda_codec usbcore 165281 11 uas,btusb,snd_usb_audio,uvcvideo,usb_storage,snd_usbmidi_lib,ehci_hcd,ehci_pci,usbhid,xhci_hcd,xhci_pci When I start Rosegarden and go to Manage MIDI Devices, it reports no MIDI input or output port. Using QJackCtl 0.3.12 (QT 4.8.6) on 64-bit Aptosid (Debian Sid) kernel 3.19.0-1.slh.4-aptosid-amd64. And apparently the old ALSA package has been turned into a dummy and replaced with kmod? Any ideas? Thanks. See what happens when you upgrade things and *everything just seems to work* except for weird little things like this? Everything before upgrade was working with no problems. Stupid computers. ;) -- David W. Jones gnome(a)hawaii.rr.com authenticity, honesty, community http://dancingtreefrog.com

10 years, 2 months

jcm800 lv2 plug

by Hermann Meyer

I've just pushed a jcm800 simulation lv2 plugin to the guitarix git repository. This one is for those who are more behind the lead sounds. Guitarix users know it already as gx plugin, but for the lv2 format I've added tone, presence and master controls to the plug, so that the full jcm800 is simulated. Check it out and have fun. |git clone git://git.code.sf.net/p/guitarix/git guitarix-git|

10 years, 2 months

Re: [LAU] using home jack server (or pulse audio) as an audio sink for sound from android. possible?

by Yosef Werner

Hi Athanasios, > i wonder if I can redirect audio from my android mobile phone to a jack > server (preferably) or pulse audio server (not so preferably) through wifi, > in much the same way this can be done through bluetooth. Linux-Audio and pulse is not a good partnership and for using jack you have to build yourself the Android and for sure it has to be rooted. Not everyone can do this or wants to root his phone. An Android 4.4.2 device is needed. The code and instruction you can find on GitHub. https://github.com/KimJeongYeon/jack2_android The next problem will be wireless transfer for Jack. As far as I know netjack is not designed for wireless connections. So I'm still looking for a solution. Google has a long history in the Android latency bug, many developers left to IOs. Since Android 4.4 and the efforts by Google in 2013/14 audio programming starts to make sense in Android, but in C++ and not in Java less then Android5. Yosef

10 years, 2 months

DrumGizmo version 0.9.8.1-hotfix released!

by Bent Bisballe Nyeng

DrumGizmo version 0.9.8.1-hotfix released! After releasing 0.9.8 we discovered a rather serious bug in the resampling code that would cause sample skewing over the channels when resampling was enabled. This release fixes that. Download it from http://www.drumgizmo.org Visit us at the official irc channel at the Freenode network. Channel name #DrumGizmo. We would love to hear from you! // The DrumGizmo team

10 years, 2 months

sound sculptor

by pierre jocelyn andre

Hello, To complete the wiki http://wiki.debian-facile.org/atelier:chantier:sequenbaul I want a sound sculptor. As an example of his sculpture: http://commons.wikimedia.org/wiki/File:Capture_lmmodel30jo.png http://commons.wikimedia.org/wiki/File:Capture_du_2014-12-04_20_50_26.png http://commons.wikimedia.org/wiki/File:Capture_17_1_20_230_60_10_12_12_1_0_… The git for creating sounds is here : http://git.debian-facile.com/?p=projets/sequenbaul.git;a=summary The rules are to find the most telling dimension, make a screenshot and indicate the 16 bytes that can draw the sound. Best Regards

10 years, 2 months

RME multiface detected as digiface

by Peter P.

Dear list, the following problem is giving me headache since a very long time: My RME Multiface connected via the ExpressCard to my Lenovo X201s running Debian/GNU testing is 20% of the time detected as Digiface when inserting the card into the computer. Dmesg tells me that Hammerfall-DSP: Digiface found I have to eject the card multiple times and power cycle the Multiface until it is eventually randomly detected as the multiface it is. Does anyone have any idea why this could happen? Does anyone have similar experiences? thank you so much! Peter

10 years, 2 months

3.18.7-rt2 issue and journalctl log files

by Ralf Mardorf

Some folks are still contributing by writing RT patches for current kernel version. Several people who aren't able to contribute by programming are willing to help by testing. So far, so good. How can we provide a useful bug report, when the distros we're using comenmwith systemd? IOW journalctl rules. I send requests to archaudio-discuss(a)archaudio.org and to linux-rt-users(a)vger.kernel.org , but journalctl is an issue. For more than a decade I'm using Linux only, but I'm unable to find a way to get useful journalctl output. Any ideas?

10 years, 2 months

[ANN] Vee One Suite 0.6.1 - A fourth beta release

by Rui Nuno Capela

Hi, The 'Vee One Suite' of this 'old-school' software instruments, also self-indicted as the gang of three usual suspects thou being: synthv1 [1], as one polyphonic synthesizer, samplv1 [2], a polyphonic sampler and drumkv1 [3], as one drum-kit sampler, now released into the world, yet still beta. Not much of any audible changes I must say for this so called fourth beta release though it goes as follows: - Added application description as freedesktop.org's AppData. - Introducing LV2 port-groups (as proposed by Amadeus Folego aka. badosu, thanks). - Improved envelope widget nodes click-and-drag precision. - Introducing a brand new user preference on eye-candy: cf. Help/Configure.../Options/Custom style theme (applies to the JACK stand-alone client only though). - Envelope and filter now rendered with anti-aliased lines. - Fixed a Qt5 FTBFS re. QHeaderView::set[Section]ResizeMode(). There's no surprise as it's all made available in dual form, as usual: - a pure stand-alone JACK [4] client with JACK-session, NSM [5] (Non Session management) and both JACK MIDI and ALSA [6] MIDI input support; - a LV2 [7] instrument plug-in. The Vee One Suite are free and open-source Linux Audio software, distributed under the terms of the GNU General Public License (GPL) [8] version 2 or later. Yet again, business as usual :/ **synthv1 - an old-school polyphonic synthesizer [1]** synthv1 0.6.1 (fourth official beta) has been released! synthv1 is an old-school all-digital 4-oscillator subtractive polyphonic synthesizer with stereo fx. LV2 URI: http://synthv1.sourceforge.net/lv2 website: http://synthv1.sourceforge.net downloads: http://sourceforge.net/projects/synthv1/files - source tarball: http://download.sourceforge.net/synthv1/synthv1-0.6.1.tar.gz - source package: http://download.sourceforge.net/synthv1/synthv1-0.6.1-20.rncbc.suse132.src.… - binary packages: http://download.sourceforge.net/synthv1/synthv1-0.6.1-20.rncbc.suse132.i586… http://download.sourceforge.net/synthv1/synthv1-0.6.1-20.rncbc.suse132.x86_… **samplv1 - an old-school polyphonic sampler [2]** samplv1 0.6.1 (fourth official beta) has been released! samplv1 is an old-school polyphonic sampler synthesizer with stereo fx. LV2 URI: http://samplv1.sourceforge.net/lv2 website: http://samplv1.sourceforge.net downloads: http://sourceforge.net/projects/samplv1/files - source tarball: http://download.sourceforge.net/samplv1/samplv1-0.6.1.tar.gz - source package: http://download.sourceforge.net/samplv1/samplv1-0.6.1-20.rncbc.suse132.src.… - binary packages: http://download.sourceforge.net/samplv1/samplv1-0.6.1-20.rncbc.suse132.i586… http://download.sourceforge.net/samplv1/samplv1-0.6.1-20.rncbc.suse132.x86_… **drumkv1 - an old-school drum-kit sampler [3]** drumkv1 0.6.1 (fourth official beta) has been released! drumkv1 is an old-school drum-kit sampler synthesizer with stereo fx. LV2 URI: http://drumkv1.sourceforge.net/lv2 website: http://drumkv1.sourceforge.net downloads: http://sourceforge.net/projects/drumkv1/files - source tarball: http://download.sourceforge.net/drumkv1/drumkv1-0.6.1.tar.gz - source package: http://download.sourceforge.net/drumkv1/drumkv1-0.6.1-16.rncbc.suse132.src.… - binary packages: http://download.sourceforge.net/drumkv1/drumkv1-0.6.1-16.rncbc.suse132.i586… http://download.sourceforge.net/drumkv1/drumkv1-0.6.1-16.rncbc.suse132.x86_… References: [1] synthv1 - an old-school polyphonic synthesizer http://synthv1.sourceforge.net/ [2] samplv1 - an old-school polyphonic sampler http://samplv1.sourceforge.net/ [3] drumkv1 - an old-school drum-kit sampler http://drumkv1.sourceforge.net/ [4] JACK Audio Connection Kit http://jackaudio.org/ [5] NSM, Non Session Management http://non.tuxfamily.org/nsm/ [6] ALSA, Advanced Linux Sound Architecture http://www.alsa-project.org/ [7] LV2, Audio Plugin Standard, the extensible successor of LADSPA http://lv2plug.in/ [8] GNU General Public License http://www.gnu.org/copyleft/gpl.html See also: http://www.rncbc.org/drupal/node/874 Enjoy && keep the fun ;) -- rncbc aka. Rui Nuno Capela

10 years, 2 months

[NOOB] How to I configure jack to connect to alsa hw:0?

by Bill White

I apologize in advance for what seems like a trivial and often asked question. But I can't seem to figure out even the tools to diagnose my problem. I've been reading web pages and alsa and jackd documentation for two weeks, with no luck. I'm trying to configure my ubuntu 14.04 system to use my Akai EWI USB midi controller. I am trying to use Ted's Linux MIDI Guide <http://tedfelix.com/linux/linux-midi.html> to configure things. But before I get midi working I need to test that jackd can route audio to alsa, and I can't get audio ouput from jackd. I have verified that alsa works with pulseaudio, when pa is running. I disabled pa and then made sure that pa did not autospawn (autospawn = no in /etc/pulseaudio/client.conf.) I also verified that my hardware device is hw:0. It's the only HW device in my machine. The EWI is not currently plugged in, and it's a MIDI device anyway. When I run qjackctl and start the server I get this: 19:04:28.770 D-BUS: JACK server was started (org.jackaudio.service aka jackdbus). Sat Mar 7 19:04:28 2015: Starting jack server... Sat Mar 7 19:04:28 2015: JACK server starting in realtime mode with priority 10 Sat Mar 7 19:04:28 2015: Acquired audio card Audio0 Sat Mar 7 19:04:28 2015: creating alsa driver ... hw:0|hw:0|128|2|44100|0|0|nomon|swmeter|-|32bit Sat Mar 7 19:04:28 2015: configuring for 44100Hz, period = 128 frames (2.9 ms), buffer = 2 periods Sat Mar 7 19:04:28 2015: ALSA: final selected sample format for capture: 32bit integer little-endian Sat Mar 7 19:04:28 2015: ALSA: use 2 periods for capture Sat Mar 7 19:04:28 2015: ALSA: final selected sample format for playback: 32bit integer little-endian Sat Mar 7 19:04:28 2015: ALSA: use 2 periods for playback Sat Mar 7 19:04:28 2015: graph reorder: new port 'system:capture_1' Sat Mar 7 19:04:28 2015: New client 'system' with PID 0 Sat Mar 7 19:04:28 2015: graph reorder: new port 'system:capture_2' Sat Mar 7 19:04:28 2015: graph reorder: new port 'system:playback_1' Sat Mar 7 19:04:28 2015: graph reorder: new port 'system:playback_2' Sat Mar 7 19:04:28 2015: graph reorder: new port 'system:playback_3' Sat Mar 7 19:04:28 2015: graph reorder: new port 'system:playback_4' Sat Mar 7 19:04:28 2015: graph reorder: new port 'system:playback_5' Sat Mar 7 19:04:28 2015: graph reorder: new port 'system:playback_6' Sat Mar 7 19:04:28 2015: graph reorder: new port 'system:playback_7' Sat Mar 7 19:04:28 2015: graph reorder: new port 'system:playback_8' Sat Mar 7 19:04:30 2015: Saving settings to "/home/poppa/.config/jack/conf.xml" ... 19:04:31.000 JACK connection change. 19:04:31.031 Server configuration saved to "/home/poppa/.jackdrc". 19:04:31.032 Statistics reset. 19:04:31.038 Client activated. 19:04:31.043 JACK connection graph change. Sat Mar 7 19:04:30 2015: New client 'qjackctl' with PID 27579 (It complained initially that the server was not running, but that's because it wasn't.) export JACK_PLAY_CONNECT_TO=system:playback_%d jack.play test.wav I have played this .wav file before with aplay, so I know it plays, but no sound comes out of my speakers. I think jack thinks it's playing, since qjackctl tells me this when I run jack.play: 19:04:31.043 JACK connection graph change. Sat Mar 7 19:04:30 2015: New client 'qjackctl' with PID 27579 19:07:09.840 JACK connection graph change. 19:07:09.955 JACK connection change. Sat Mar 7 19:07:09 2015: New client 'jack.play-27607' with PID 27607 Sat Mar 7 19:07:09 2015: Connecting 'jack.play-27607:out_1' to 'system:playback_1' Sat Mar 7 19:07:09 2015: Connecting 'jack.play-27607:out_2' to 'system:playback_2' 19:07:10.772 JACK connection graph change. 19:07:10.959 JACK connection change. Sat Mar 7 19:07:10 2015: Disconnecting 'jack.play-27607:out_1' from 'system:playback_1' Sat Mar 7 19:07:10 2015: Disconnecting 'jack.play-27607:out_2' from 'system:playback_2' Sat Mar 7 19:07:10 2015: Client 'jack.play-27607' with PID 27607 is out I know it's some simple configuration error I have made. I have no .asoundrc nor an /etc/asound.conf file, so I have the default configuration. I also have the most common kind of sound card in the world, so it can't be that hard to configure it. Can anybody give me a clue? Thanks. P.S. FWIW, alsa is working fine, so I don't think that's the problem. But catting /proc/asound/cards gives me: Code: poppa@ossian:~/.config$ cat /proc/asound/cards 0 [SB ]: HDA-Intel - HDA ATI SB HDA ATI SB at 0xfdff4000 irq 16 Also, alsamixer tells me the levels are fine and not muted. P.P.S. The EWI works with alsa and fluidsynth alone, but there seems to be a noticable latency between fingering notes and hearing the notes. I'm hoping jack will fix some or all of that.

10 years, 2 months

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Linux-audio-user March 2015