Linux-audio-user January 2013

linux-audio-user@lists.linuxaudio.org

140 participants
130 discussions

by Chris Bannister

Hi, SCNR A musical director was having a lot of trouble with one drummer. He talked and talked and talked with the drummer, but his performance simply didn't improve. Finally, before the whole orchestra, he said, "When a musician just can't handle his instrument and doesn't improve when given help, they take away the instrument, and give him two sticks, and make him a drummer." A stage whisper was heard from the percussion section: "And if he can't handle even that, they take away one of his sticks and make him a conductor." -- "If you're not careful, the newspapers will have you hating the people who are being oppressed, and loving the people who are doing the oppressing." --- Malcolm X

11 years, 11 months

questions re: systemd and audio in Arch

by Dave Phillips

Greetings, As fellow Arch users know, as of now Arch is officially deprecating the use of initscripts and sysvinit. Systemd is now supported, and I'm getting ready to make the switch. It doesn't seem like a difficult thing to do, but I'd appreciate any advice before taking the plunge. I have a smoothly running Arch 64 system now, I'd like to keep it that way. :) TIA, dp

11 years, 11 months

can't get virtual midi ports working under wine

by Matt and Irina

I'm unable to get virtual midi ports (snd-virmidi) working under WINE 1.4. In my windows app (bomes midi translator) under wine, I set the output port to one of the virtual ports created by snd-virmidi driver, but midi is not sent thru the port under wine. I have verified by connecting within the JACK control. I also tried through ports created by snd_seq_dummy without success. Maybe I'm doing something wrong. Anybody else get virtual midi ports working from within wine?

11 years, 11 months

ANN: Audiality 2 1.9.0 - Refactored, renamed, rearmed!

by David Olofson

Audiality 2 1.9.0 - Refactored, renamed, rearmed! ------------------------------------------------- "Audiality 2 is a realtime audio and music engine, primarily intended for video games. While it supports traditional sample playback as well as additive, subtractive and granular synthesis, the distinctive feature is subsample accurate realtime scripting." Audiality 2 (previously released as ChipSound) is used for sound effects and music in the game Kobo II. The name originates from an old structured audio and sampleplayer engine, originally developed as part of the XKobo port Kobo Deluxe. The old engine is no longer maintained, so the new one, which has similar goals but much greater potential, is now inheriting the name. Key features: * Microthreaded realtime scripting engine * Modular voice structures * Subsample accurate timing * Designed for hard realtime applications * No hardwired voice/channel/bus structures * No hardwired "MIDI-isms" or similar * No hardwired instruments or songs - only programs * Lock-free timestamping C API * Audio I/O drivers: * SDL audio * JACK * Application provided drivers * System drivers: * libc malloc (soft RT) * Application provided drivers * Implemented in portable C * zlib license Official site: http://audiality.org/ Direct download: http://audiality.org/download/Audiality2-1.9.0.tar.bz2 Related; Kobo II site: http://kobo2.net/ -- //David Olofson - Consultant, Developer, Artist, Open Source Advocate .--- Games, examples, libraries, scripting, sound, music, graphics ---. | http://consulting.olofson.net http://olofsonarcade.com | '---------------------------------------------------------------------'

11 years, 11 months

Mother Board IRQ allocation

by Len Ovens

I don't know how useful this will be. My MB, an A-bit AC7 (10 years old?), has the option to turn off IRQs for USB and/or video. My first thought was that would not be useful, but it turns out what it does is turn of the bios IRQ selection. This means the Linux kernel has to do this... and the Linux kernel does a better job of allocating IRQs than the bios does. The ehci IRQ is now on it's own (USB 2.0) where it used to be lumped on 16 with 4 other things. eth0 has it's own irq too, as do both my audio cards. I was still able to boot from a USB 2 device as well. So in the case of finding PCI slots that give solo IRQs, it is worth playing with the bios settings, even things that do not make sense. -- Len Ovens www.OvenWerks.net

11 years, 11 months

Dual Delta Setup

by Ben Bell

Hi all, Having recently acquired a second Delta 1010 for my setup I've been trying to run the two in tandem using the alsa Multi hack. I'm getting the xruns that I understand are expected but harmless[1] but I'm also getting some audible ones, which are obviously more of a problem. They're synched via the S/PDIF link and running either card on its own seems pretty solid. I've seen on various mailing lists people talking about digging into this but not found any conclusions. Is anyone here running dual Delta 1010s who can double check I'm running the latest recommended settings? I'm on a dual core 2.3GHz Athlon (4450e), running linux 3.2.0-2-rt with cpu scaling disabled, and the cards have exclusive use of IRQs 17 and 18. Jack is running at 44.1KHz with 6 frames and 64 periods, audio IRQs at rtprio 85 and Jack at rtprio 82. bjb [1] http://www.jrigg.co.uk/linuxaudio/ice1712multi.html

11 years, 11 months

Francesco Biadene EP - made with Linux

by Lorenzo Cecchi

Hi all, I just want to share some songs recorded, mixed and mastered a couple of months ago by me, using Linux (Ardour on Ubuntu). https://soundcloud.com/francesco-biadene They're taken from Francesco Biadene's first EP, a young and talentuos song writer/guitarist, from Pistoia, center of Italy. It's my first work. I've understood a lot of mistakes i made in recording and mastering (like too much compression, a little bit confusion on the low freq and other bigger or smaller things to correct). But any advice, comment, question, insult!.. about the technical part of the stuff is really welcome. pps. unfortunatly soundcloud is the only "place" the songs are uploaded in the www for now. i'm managing to make Francesco do the "Jamendo's step". Saluti, lroe

11 years, 11 months

Incunabular v2

by Dave Phillips

Greetings, http://linux-sound.org/audio/Incunabular.mp3 http://linux-sound.org/audio/Incunabular.ogg A rather dark "cradle song", inspired by piano music by Hugo Wolf, dedicated to Julien and Will. Best, dp

11 years, 11 months

asoundrc questions

by John Murphy

I'm trying to follow the example .asoundrc provided at http://alsa.opensrc.org/RME_Hammerfall_.asoundrc I've read elsewhere that references to 'card 0', 'card 1' etc. can not be relied upon to always refer to the same card. It wouldn't matter, I suppose, if there are only two identical cards, but I have another two. One is switched off in the BIOS, but the other always shows up like: card 0: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0] But not always as 'card 0'. I've configured a udev rule which always names my two RME cards as RME_1 and RME_2, so can I use those names in place of the card N designations? Are the strings which contain "9652" in the example just made up? Or are they references to the author's udev dabblings? The first one is particularly confusing as it's the only case of rme9652_s. Lastly; I don't suppose there's anything which can sanity test an .asoundrc, so will there be complaints logged somewhere if I get it wrong? -- Thanks again, John.

11 years, 11 months

Sonatina sonatina sonatina....

by Ketil Thorgersen

Hi list I might be an impationent lazy fellow, but I have now googled and toyed and experimented with qsampler and the sonatina orchstra samples in different varieties through different sources with the OpenOctave file and without, and some samples load and some don't and I just want to load the whole thing into linuxsampler and play... Some people seem to be able to from the googling I've done. Can one of you please step up and give a step by step instruction as to what to do - please!! All the best Ketil

11 years, 11 months

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Linux-audio-user January 2013