Linux-audio-user September 2014

linux-audio-user@lists.linuxaudio.org

99 participants
80 discussions

by Gabriel Nordeborn

Hey all! After quite a long period of "no time or no space to make music", I've finally had time and peace of mind enough to sit down and make some new music. I've just published a new track to my SoundCloud, which features vocals from the user "snowflake" of ccmixter.org (a great resource for finding acapella/other remix material, which I sincerely recommend). It's a bit of hiphop/glitch mixed in there, and I hope you'll enjoy it. Please let me know what you think! :) https://soundcloud.com/zthmusic/never-stop-raising-the-bar If there's anyone who can't download from/listen on SoundCloud, just let me know and I'll arrange for an extra download through the website. The song is licensed CC-BY-SA-NC. Thanks a bunch for listening and for any feedback I get! Cheers, Gabriel/zth

10 years, 1 month

How-to for simple recording for 3.5 hours?

by Jonathan E Brickman

Last Sunday I set up my laptop for a 3.5-hour recording session, Audacity crashed after 2.5 hours. Anyone know why this might have occurred, what to do about it, whether Audacity is in fact best for simple recording? Jonathan E. Brickman Ponderworthy Music | jeb(a)ponderworthy.com<mailto:jeb@ponderworthy.com> | (785)233-9977 | http://ponderworthy.com

10 years, 1 month

Re: [LAU] qjackctl prettyname (metadata) patch (was: Bridging alsa and jack midi)

by Rui Nuno Capela

On 09/28/2014 07:06 PM, Paul Davis wrote: > patch from svn diff attached > i see that your patch only reads the pretty-names (metadata) if exists at runtime and uses them as the "official" port-names instead. so, who or what does the pretty-name setup? that is, who or what sets the pretty-names of each port in the first place? i was thinking about the user using the qjackctl client/port aliases functionality already in place and use it eg. to run jack_set_property() on each renamed client/port alias on jack server start (as read from Qjackctl.conf file, on a per preset basis). what you think? -- rncbc aka Rui Nuno Capela rncbc(a)rncbc.org

10 years, 1 month

Re: [LAU] Bridging alsa and jack midi

by Len Ovens

On Fri, 26 Sep 2014, Philipp Überbacher wrote: > Alles klar. Well, mostly. I guess that alsa_midi only makes sense > when alsa is used as a backend, so I don't quite see why it is a server > option instead of a backend option. Anyway, using the -X alsa_midi as > server option works. That is not true at all, Audio and MIDI are separate and so it is very possible (even likely) that the backend for audio may not be relevant to MIDI. MIDI is handled by ALSA, but is not treated as a part of the same audio interface as the sound that goes with it. So the user who has a FW audio IF with no MIDI would not be able to use a USB MIDI along with it if this was in the backend only. Along the same lines is the FW user who does have MIDI in their FW IF wants to use a lot of the older SW that creates ALSA MIDI ports they are again stuck if it is only available in the ALSA back end. The only thing I would like to see different in a2jmidi is the naming. (I am not sure how jack1 works) a2j opens as one client called a2j that when expanded has the alsa client name followed by the actual port name. This is hard to read and use. It is also confusing to new users who ask where the port is just because a2j has not been expanded. I would guess the best thing (from a user POV) would be for a2j to open a new jack client for each ALSA client with the ALSA name. I am not sure what other consequences this would have though :) -- Len Ovens www.ovenwerks.net

10 years, 1 month

JACKDUB

by Patrick Shirkey

Hi, Some of you might be interested in a new project I have been working on: http://jackdub.channellinux.com/ It is a fully realtime automated music playback system built with various FLOSS tools. The system runs entirely in the cloud and doesn't even have a sound card. It's a work in progress so YMMV... Cheers -- Patrick Shirkey Boost Hardware Ltd

10 years, 1 month

What is wrong with jackdbus?

by Phil CM

Dear LAU Whenever I'm starting to get xruns, I do a quick ps aux|grep jack and sure enough, in place of the usual (...) /usr/bin/jackd -dalsa -dhw:XStation,0 -r48000 -p512 -n3 -Xseq I get a nasty (...) /usr/bin/jackdbus auto I' suspecting pulseaudio to launch it (I use 3.13.0-36-lowlatency #63-Ubuntu SMP PREEMPT) so I edited /etc/pulse/default.pa To comment out those lines ### Automatically connect sink and source if JACK server is present # .ifexists module-jackdbus-detect.so # .nofail # load-module module-jackdbus-detect channels=2 # .fail # .endif But nope, at some point, jackdbus rears its ugly head. Then I have to reboot :[ because just killing -9 it prevents the jack server to start anew. Questions - What is wrong with jackdbus ? - How can I prevent it from starting ? Thanks -- Phil CM

10 years, 1 month

Master Control disappears

by shal＠free.fr

Hi, My sound card is a Edirol UA-1000 that is supported by the module snd_ua101. In the past, I have a master control in alsamixer. This sound card have a real master volume. Now, this master control has disappears in alsamixer. I am in Ubuntu 14.04. I don't want a soft volume in order to keep the sound quality. I have only control on midi: $ amixer Simple mixer control 'MIDI Input Mode',0 Capabilities: enum Items: 'High Load' 'Light Load' Item0: 'High Load' There is a way to recovered my Master volume ? Thank you. Olivier

10 years, 1 month

Creative Music Coding lab tonight - 30 sept 2014 - STEIM, Amsterdam

by nescivi

Hiho, tonight is the next edition of the Creative Music Coding lab: We welcome again all creative music coders at STEIM for an evening of exchanging current work, problems and solutions - and music together. More information: http://steim.org/event/creative-music-coding-lab-14/ Entrance is free. And let us know if you plan to join (just to get an idea of how many seats, and how much coffee and tea we should prepare)! sincerely, Marije

10 years, 1 month

mplayer no go with snd-hdsp

by Janina Sajka

Hi, I've recently gotten my RME Multiface up and working quite satisfactorally with current Linux kernels. I'm very happy, especially as I had a long run of it not working for some reason I never teased out. So, I find I can aplay and arecord, and I can use ecasound, and a few other cli tools. But, I can't use mplayer. Am I the only one? Anyone else tried mplayer on the Multiface? For cli tools mplayer gives me the ability to pause, or move backwards and forwards through the audio file. This is important to me because I learn music these days by ear. I know one can do this in the gui, but as a blind user the Linux gui audio apps aren't particularly friendly in my experience. Besides, it's so terribly simple, if rather imprecise, to use spacebar, left-arrow, and right-arrow. The error I get: Opening audio decoder: [pcm] Uncompressed PCM audio decoder AUDIO: 48000 Hz, 2 ch, s16le, 1536.0 kbit/100.00% (ratio: 192000->192000) Selected audio codec: [pcm] afm: pcm (Uncompressed PCM) ========================================================================== [AO_ALSA] alsa-lib: pcm_hw.c:327:(snd_pcm_hw_hw_params) SNDRV_PCM_IOCTL_HW_PARAMS failed (-16): Device or resource busy [AO_ALSA] Unable to set hw-parameters: Device or resource busy Failed to initialize audio driver 'alsa:device=plughw=8.0' Could not open/initialize audio device -> no sound. Audio: no sound Video: no video Exiting... (End of file) Meanwhile, aplay and ecaplay have no problems. So, I thought I should ask if anyone else has experienced this before reporting to mplayer devs. TIA Janina -- Janina Sajka, Phone: +1.443.300.2200 sip:janina@asterisk.rednote.net Email: janina(a)rednote.net Linux Foundation Fellow Executive Chair, Accessibility Workgroup: http://a11y.org The World Wide Web Consortium (W3C), Web Accessibility Initiative (WAI) Chair, Protocols & Formats http://www.w3.org/wai/pf Indie UI http://www.w3.org/WAI/IndieUI/

10 years, 1 month

New content on the Yoshimi wiki

by Jonathan E. Brickman

Greetings, everyone. I am doing some work "in fits and starts" on the Yoshimi wiki, here: http://sourceforge.net/p/yoshimi/wiki/Home/ The new page is the Overview: https://sourceforge.net/p/yoshimi/wiki/an%20Overview I am also working on an old-school "Links" page. If you have web-facing recordings with some or all content generated using Yoshimi, please shoot me some URLs; if you have any web sites discussing Yoshimi I'll very much want those as well; and if there is a third category you can think of, please do let me know. I am interested in building a page to be called something like "Innovations", which could contain some developer-thoughts of areas in which Yoshimi shines brightest. I am definitely not the one to generate or update the list of items, but I'd be very happy to format it for friendly reading. There are other pages in thought, including one called "Approaches to Setup". Suggestions on this and all pages are definitely encouraged, but I am not promising anything in particular except the above :-) -- Jonathan E. Brickman Ponderworthy Music 805 SW Jewell Ave, Topeka KS 66606-1610 jeb(a)ponderworthy.com "Normal" is however we are right now!

10 years, 1 month

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Linux-audio-user September 2014