Linux-audio-user October 2015

linux-audio-user@lists.linuxaudio.org

70 participants
59 discussions

Cabbagenic - More tracks from The Swinging Sounds Of Cabbage !

by Dave Phillips

Greetings, fellow travellers, https://soundcloud.com/davephillips69/cabbagenic Incidental music for that rare occasion. Descriptive warnings/pointers to inner meanings : Part 1. Sunday morning, waking/dreaming/waking and dreaming again. Part 2. Sebkha-Chott patiently teach GWAR how to tune their instruments and play simple melodies correctly. Part 3. An imaginary fretless bass dreams of 50s Darmstadt stardom, then it all sadly fades away. All sounds made by VST plugins created with Rory Walsh's Cabbage. All instrument/processor designs by Iain McCurdy. One non-Cabbage plugin was used, Martin Eastwood's MVerb, from falkTX's DISTRHO-Extra code base. Sequenced and rendered in Bitwig 1.2.0 (beta). Best, dp

8 years, 6 months

Assumed you want to remove pulseaudio - Was: Diagnosing JACK

by Ralf Mardorf

It's off-topic for the original thread and might confuse the OP of this thread, so I opened a new one. If somebody wants to get rid of pulseaudio, without recompiling, without dummy packages, then it doesn't harm to test if software really needs pulseaudio. On Sat, 10 Oct 2015 05:32:43 +0000 (UTC), fred wrote: > De : Ralf, Envoyé le : Samedi 10 octobre 2015 1h39 >>For me it's easier to just install one sound server instead of two or >>more sound servers. I don't need to comment out something or to add >>something to an app. For most use cases it's simpler to use one sound >>server. > > That's because you have the technical ability to do it Ralf!>> For > most of "simple users" installing distros "as it comes", you just > finish with 'killall pulseaudio' before starting Jack,>> and it > works right :) My Ubuntu install has zero dependencies to pulseaudio. Since I test a lot with my Arch Linux install I need a dummy package to fulfil hard dependencies for cinnamon and vice. There are 4 optional dependencies. Even if I would like to use Cinnamon, I couldn't, because it requires an absurd fast graphics. Using the "radeon" driver Google Earth is fast as lightning, but Cinnamon is nearly unresponsive. Vice is an emulator I just planed to test, but I never did, IOW assumed recompiling without pulseaudio or just installing a dummy package, as I did, wouldn't work, I could simply remove this software [1]. If users anyway suspend/kill pulseaudio and dummy packages work too, then why is it a hard dependency for some software? Why not using simply software that doesn't require pulseaudio? I'm using openbox, but at least JWM, Xfce4 and Mate are installed too and seemingly non of them requires pulseaudio. If you're using a deb based distro, make a dry-run to test, if there really is needed software that depends on pulseaudio [2]. IMO Ubuntu and Debian aren't distro for power-users or geeks only. [1] [rocketmouse@archlinux lib]$ cd /bin/;du -sh 1.2G . [rocketmouse@archlinux bin]$ cd /lib/;sudo du -sh 5.2G . [rocketmouse@archlinux lib]$ sudo pacman -R pulseaudio pulseaudio-alsa vice cinnamon-settings-daemon cinnamon-control-center cinnamon checking dependencies... :: fluidsynth optionally requires pulseaudio: PulseAudio sound support :: phonon-qt4 optionally requires pulseaudio: PulseAudio support :: phonon-qt5 optionally requires pulseaudio: PulseAudio support :: speech-dispatcher optionally requires pulseaudio: PulseAudio support Packages (6) cinnamon-2.6.13-3 cinnamon-control-center-2.6.0-1 cinnamon-settings-daemon-2.6.3-1 pulseaudio-2013.08.18-1 pulseaudio-alsa-2-3 vice-2.4-7 Total Removed Size: 51.37 MiB :: Do you want to remove these packages? [Y/n] n [rocketmouse@archlinux lib]$ grep Driver /etc/X11/xorg.conf | grep -v "#" Driver "radeon" [2] [root@moonstudio ~]# apt-get purge --dry-run pulseaudio Reading package lists... Done Building dependency tree Reading state information... Done The following packages will be REMOVED: pulseaudio* 0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded. Purg pulseaudio [2015:09-06-moonstudio]

8 years, 6 months

Music

by Will Godfrey

Checking through 'stuff' I just realised I never mentioned on here my most extreme chill-out composition... and that was 2 years ago. So here is just over 5 minutes of wind-down music. http://www.musically.me.uk/music/Breathe.ogg Enjoy :) -- 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.

8 years, 6 months

PreparationP

by Dave Phillips

Greets, Fun with prepared piano samples : https://soundcloud.com/davephillips69/preparationp Sugar-free, low cholesterol, no trans-fats, non-GMO ingredients, produced without dyes, preservatives, or additives. "Never eat what you can't pronounce." - Smallie Biggs, (1973-1732, roughly contemporaneous with PDQ Bach.) Best, d(your ad here)p

8 years, 6 months

[ANN] Qtractor 0.7.1 - The Meson Dope beta release

by Rui Nuno Capela

Hey, Here's to all southerners for whom the so called Summer'15 didn't made much sense... Beg your pardon yet and again, but it's that time of year when grapefruit is about ripening, pretty fast and maybe late, at least on the northern hemisphere. No worries: harvesting has already been carried away. So it's your call now, wether it makes for ugly bad wine or, pretty good vinegar... "Quickly, bring me a beaker of wine so that I may wet my mind and say something clever." --Aristophanes never mind, Qtractor 0.7.1 (meson dope beta) is released! Now, for the clueless: Qtractor [1] is an audio/MIDI multi-track sequencer application written in C++ with the Qt framework [2]. Target platform is Linux, where the Jack Audio Connection Kit (JACK [3]) for audio and the Advanced Linux Sound Architecture (ALSA [4]) for MIDI are the main infrastructures to evolve as a fairly-featured Linux desktop audio workstation GUI, specially dedicated to the personal home-studio. And for the ones who can aptly tell a TL;DR apart from a hangover: Besides the incidental bug-fixes and proverbial business-as-usual stance for this dot release, the most probable and hopefully significant news about it, is that this will the last to build against Qt4 by default. The time has come to move on up to Qt5. Remember that a Qt5 build is and has been possible already for ages now but somewhat relegated on a subpar status due to the once lack of support for all non-Qt5 LV2 plug-ins GUIs out there. Not anymore! Starting from this very release onwards there's this so called <em>native</em> LV2 GTK2 and X11 UI support on Qt5. Also thriving, drobilla's libsuil is being updated to par just that as well. So things are all aligning up nigh. A special note to the voluntary packager: if you choose, for any reason you may find commendable, to build, package and distribute a Qt5 build (via ./configure --enable-qt5 ...) please be sure that every LV2 plug-ins around that take Qt as its UI framework are also build, packaged and distributed on the same premises, otherwise they might just fail and crash Qtractor [1] on show. Among those are of course the one comprised by the 'Vee One Suite', namely synthv1 [9], samplv1 [10] and drumkv1 [11], of course. Also as a(nother) side note: It has been for quite some time there's an alternate github.com [7] repository which is kept in sync with the sf.net one [8]. However, this doesn't mean that the Qtractor [1] project is about to migrate to brand new hosting whatsoever: the original upstream source code repository is, will be, as ever was, always kept somewhere else still in this world and universe. It's a Git [12] world out nowadays and as the mottos says, --everything-is-local, --distributed-is-the-new-centralized ;) Enjoy. Website: http://qtractor.sourceforge.net Project page: http://sourceforge.net/projects/qtractor Downloads: http://sourceforge.net/projects/qtractor/files - source tarball: http://www.rncbc.org/archive/qtractor-0.7.1.tar.gz - source package (openSUSE 13.2): http://www.rncbc.org/archive/qtractor-0.7.1-19.rncbc.suse132.src.rpm - binary packages (openSUSE 13.2): http://www.rncbc.org/archive/qtractor-0.7.1-19.rncbc.suse132.i586.rpm http://www.rncbc.org/archive/qtractor-0.7.1-19.rncbc.suse132.x86_84.rpm - wiki (help wanted!): http://sourceforge.net/p/qtractor/wiki/ Weblog (upstream support): http://www.rncbc.org License: Qtractor [1] is free, open-source Linux Audio [5] software, distributed under the terms of the GNU General Public License (GPL [6]) version 2 or later. Change-log: - Fixed an ages old MIDI track/channel instrument mapping (bank, program) issue that prevented normal all-shut-up messages from being sent to MIDI output buses/ports on playback stop. - Messages standard output capture has been improved again, now in both ways a non-blocking pipe may get. - Fixed port on MIDI 14-bit controllers input caching. - Fixed false value readings on the MIDI clip editor (aka. piano-roll) tool-tips, when dragging a note velocity or controller value outside the acceptable nominal range (eg. 0-127). - Added LV2_BUF_SIZE__nominalBlockLength option support (patch by falktx aka. Filipe Coelho, thanks). - Fixed wrong initial tempo/time-signature display when session is loaded from command line. - LV2 plug-in UI GTK2 and X11 in Qt5 host native support added. - Transport/Auto Backward feature now honoring (auto return) to same current location precedence as Transport/Backward. - Single/unique application instance control adapted to Qt5/X11 (cf. configure --enable-xunique). - MIDI Tools/Transpose, Resize duration display format (frames, time or BBT) have been fixed. - Build fix for Qt5.5 (patch by KaOS, thanks). - MIDI Tools/Quantize et al. are tentatively being corrected to take event times as relative to THE beginning of session, instead of MIDI clip start location. References: [1] Qtractor - An audio/MIDI multi-track sequencer http://qtractor.sourceforge.net [2] Qt framework, C++ class library and tools for cross-platform application and UI development http://qt.io/ [3] JACK Audio Connection Kit http://jackaudio.org [4] ALSA, Advanced Linux Sound Architecture http://www.alsa-project.org/ [5] Linux Audio consortium of libre software for audio-related work http://linuxaudio.org [6] GPL - GNU General Public License http://www.gnu.org/copyleft/gpl.html [7] Qtractor Git repository on github.com http://github.com/rncbc/qtractor [8] Qtractor Git repository on sourceforge.net http://git.code.sf.net/p/qtractor/code [9] synthv1 - an old-school polyphonic synthesizer http://synthv1.sourceforge.net/ [10] samplv1 - an old-school polyphonic sampler http://samplv1.sourceforge.net/ [11] drumkv1 - an old-school drum-kit sampler http://drumkv1.sourceforge.net/ [12] Git distributed version control system http://git-scm.com See also: http://www.rncbc.org/drupal/node/960 Enjoy && have fun. -- rncbc aka. Rui Nuno Capela

8 years, 6 months

JACK switcher app?

by James Greenlee

I'm looking for an audio switching application based around JACK. Ideally I want a scheduler that will connect a JACK input to a specific JACK output at specific times during the day. Bonus points for HTTP interface for the scheduler. Anybody know of anything like that? Thanks, James

8 years, 7 months

Getting started editing and playing a score

by worik

Friends I would like to get started editing a simple score and producing some sound from it. I have tried rosegarden recently but I can get no sound out of it. It is far more than I require, as my confidence increases perhaps it is what I will need but I simply cannot tell at this point. In the past I have used csound, it has a less useful interface (suits me) and is the closest to what I want but I need to get a colleague entering a score and a text editor will not do. I am at my wits end, what I might need is a beginners guide for rosegarden, or better still a simpler programme, or virtual keyboard (best). I am completely swamped by all the options that I have and hence am a bit paralysed. I can tell that whatever I choose will require a big investment in time to learn but I cannot be sure that it is worth the investment. And being unable to get any sound at all is very demoralising. Worik PS I have been doing a lot of sound recording and editing with Linux and a M-Audio interface (usually) and a PreSonus AudioBox 1818VSL when I have to mostly into audacity. When I am absolutely forced to (when using > 2 tracks where Audacity cannot cope yet) I use audacious. I find audacious endlessly irritating for the same problems I outline above, so many options, so many knobs, where do I start? But audacity pretty much just worked. -- Why is the legal status of chardonnay different to that of cannabis? root(a)worik.org 021-1680650, (03) 4821804 Aotearoa (New Zealand) I voted for love

8 years, 7 months

ffplay and alsa buffers

by Peter P.

Hi list, I am playing a http .m3u8 videostream with ffplay version 1.0.10 on Debian testing and am getting drop outs about twice a minute, with the following message being posted to the command line: ALSA lib pcm.c:7905:(snd_pcm_recover) underrun occurred This happes regardless of internet connection or used soundcard. /proc/asound/card1/pcm0p/sub0/hw_params lists: access: MMAP_NONINTERLEAVED format: S32_LE subformat: STD channels: 18 rate: 44100 (44100/1) period_size: 1024 buffer_size: 2048 I have not yet found a way to raise ffplay's playback buffers and would be glad to hear about any ideas how to get to a more fluent playback. thanks! P

8 years, 7 months

QMidiArp-0.6.2 released

by Frank Kober

Hello all, This qmidiarp release dares to come about a year after the last one...and yet again: not much new stuff, but some more bugs squeeeezed, thanks to some courageous reporters. And, after all, it's a lifesign isn't it? In other words, updating is of course highly recommended. Have fun with QMidiArp 0.6.2, below are the list of changes and links Frank ----- qmidiarp-0.6.2 (2015-10-06) Fixed Bugs o Arp: Regression: Latch mode caused the first note playing on forever and other annoyances (Bug #12 reported by Alois Cochard) o Seq: Small position error of the helper tick line relative to the notes placed o Seq: Note length values saved to file were not correct and had no correct default (Bug #14 reported by Steve Grace) o LV2 Seq and Lfo: Display was not correct when diminishing resolution or length in plugin UI Minor improvement o LV2 Seq: Vertical zoom values are part of the controls and therefore saved in presets as well ----- QMidiArp is a MIDI arpeggiator, phrase generator and controller LFO for JACK and ALSA. It can run multiple synchronized arpeggiators, LFOs and step sequencers. The modules are also available as LV2 plugins with Qt user interface. All in all it is a handy live tool. Website http://qmidiarp.sourceforge.net/ Download http://sourceforge.net/projects/qmidiarp/files/qmidiarp/0.6.2/qmidiarp-0.6.… There is now also a github repo that will be kept in sync with the sf repo for the time being https://github.com/emuse/qmidiarp

8 years, 7 months

make alsa device hw:1,0 be hw:0,0 somehow

by ansible

I compiled supercollider to play through portaudio rather than jack, as it usually does, in an attempt to reduce latency and hassle. It works for audio device hw:0,0, but it doesn't work for hw:1,0. My problem is that on my device hw:0,0 has horrible latency - 70ms - while hw:1,0 has 9ms latency, much better. So what I'd like to do is reorder the audio devices, or disable the onboard audio, and have my current hw:1,0 be the hw:0,0 device. Hopefully then supercollider will work with it and I'll have those coveted low latency numbers. This is on arch linux on a bananapi armv7 computer. So here's the output from aplay -l: ``` [bananapi@lemaker ~]$ aplay -l **** List of PLAYBACK Hardware Devices **** card 0: sunxicodec [sunxi-CODEC], device 0: M1 PCM [sunxi PCM] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: Pro [Sound Blaster X-Fi Go! Pro], device 0: USB Audio [USB Audio] Subdevices: 1/1 Subdevice #0: subdevice #0 [bananapi@lemaker ~]$ ``` According to the [alsa wiki][1], I should be able to reorder the devices using a .conf file. See 'set the default sound card'. It gives the example of this: ``` /etc/modprobe.d/alsa-base.conf options snd_mia index=0 options snd_hda_intel index=1 ``` Ok so I made a file like that, but I only know the name of the usb driver, not the onboard sound driver. lsmod reveals the following: ``` [bananapi@lemaker ~]$ lsmod Module Size Used by snd_usb_audio 96225 0 snd_hwdep 5757 1 snd_usb_audio snd_usbmidi_lib 18033 1 snd_usb_audio cdc_acm 20518 0 spidev 6217 0 spi_sun7i 17802 0 sunxi_cedar_mod 9808 0 mali_drm 2608 0 drm 209226 1 mali_drm mali 111427 0 disp_ump 861 0 ump 52415 2 mali,disp_ump ap6210 584133 0 ip_tables 12937 0 x_tables 17443 1 ip_tables ``` If I do "modprobe -r snd_usb_audio", then snd_hwdep and snd_usbmidi_lib both disappear too, so they are all for the same device I think. That leaves nothing for the driver name for the onboard audio. The alsa wiki says that the driver names should be in "cat /proc/asound/modules" but I don't have that directory on my system. So anyway I made an alsa-base.conf file as directed, which looks like this: ``` [bananapi@lemaker ~]$ cat /etc/modprobe.d/alsa-base.conf options snd_usb_audio index=0 options sunxicodec index=1 [bananapi@lemaker ~]$ ``` After creating that file and rebooting aplay just returns this. ``` [bananapi@lemaker ~]$ aplay -l **** List of PLAYBACK Hardware Devices **** card 0: sunxicodec [sunxi-CODEC], device 0: M1 PCM [sunxi PCM] Subdevices: 1/1 Subdevice #0: subdevice #0 [bananapi@lemaker ~]$ ``` So this alsa-base.conf has the effect of making only the onboard audio available instead of reordering. I most likely have the 'sunxicodec' name wrong for the onboard audio, I'm just guessing at that, and have no idea what the driver name for that is, if there even is one. I'm kind of suspecting the audio device is part of a monolithic driver for the whole system-on-chip, is that possible? [1]: https://wiki.archlinux.org/index.php/Advanced_Linux_Sound_Architecture -- View this message in context: http://linux-audio.4202.n7.nabble.com/make-alsa-device-hw-1-0-be-hw-0-0-som… Sent from the linux-audio-user mailing list archive at Nabble.com.

8 years, 7 months

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Linux-audio-user October 2015