Linux-audio-user August 2010

linux-audio-user@lists.linuxaudio.org

118 participants
112 discussions

by Jeremy

Hi all, I noticed a thread about running Tartini on debian/linux. I don't really know how to reply in thread, because I wasn't subscribed to LAU at the time. Anyway, I have written a post about how to do it under Debian, so I think this might help the OP. http://externaldocumentation.blogspot.com/2010/08/building-tartini-on-debia… Jeremy

13 years, 7 months

ubuntu lucid, ffado, firewire, jackd problems

by Luka Princic // Nova deViator

hi everyone, this one is a bit on the border between LAD and LAU, but i was hoping somebody would help pointing me to the right direction... i've installed new Ubuntu Lucid in june and didn't really check if my Edirol FA-101 still works with it. now i checked it (a week before a performance, haha) and it has problems - of course. after loads of reading wikis and forums online i'm still failing although i'm almost there. it seems the problem is the new kernel (>=2.6.32) that is including new firewire stack (called 'juju'?). seems like ffado (firewire audio 'library/driver') 2.0.0 is unable to talk to this new stack. at the moment there are two directions to go - either stick with older (-rt) kernel (i tried linux-image-2.6.31-11-rt) and ffado should work as well as jack, or go ahead and try newer kernels with that new fw (juju) stack, ffado 2.0.1 and libraw1394 2.0.5. i have come very close to running it, but it stops with jack not cooperating. ffado-test-streaming manages to talk to the device and streames data to and from and shows all 10 ins and outs! i was affraid to install jackd2 from maverick as that would upgrade a lot of packages - effectively start an upgrade to Maverick Alpha... please help. i'm somewhat desperate because of coming performance on thursday. here's what i have: - basic system is lucid, but now with maverick repos (for newer libraw1394 and ffado) - running kernel linux-image-2.6.32-24-generic-pae (from lucid) - libffado2 2.0.1+svn1856-1ubuntu1 - libraw1394-11 2.0.5-2ubuntu1 - chmod 777 /dev/raw1394 ======================================================================= $ cat /etc/security/limits.d/audio.conf @audio - rtprio 99 @audio - memlock unlimited #@audio - nice -19 ======================================================================= jack sais: $ jackd -v -d firewire [...] new client: firewire_pcm, id = 1 type 1 @ 0x85cf120 fd = -1 new buffer size 1024 01651166042: (ffado.cpp)[ 92] ffado_streaming_init: libffado 2.999.0- built Aug 11 2010 00:12:04 firewire ERR: Error creating FFADO streaming device cannot load driver module firewire starting server engine shutdown [...] ======================================================================= $ ffado-test ListDevices ----------------------------------------------- FFADO test and diagnostic utility Part of the FFADO project -- www.ffado.org Version: 2.999.0- (C) 2008, Daniel Wagner, Pieter Palmers This program comes with ABSOLUTELY NO WARRANTY. ----------------------------------------------- === 1394 PORT 0 === Node id GUID VendorId ModelId Vendor - Model 0 0x000acd120070008a 0x00000ACD 0x00000000 Linux - ohci1394 - 1 0x0040ab0000c24d8b 0x000040AB 0x00010048 EDIROL - EDIROL FA-101 no message buffer overruns ======================================================================= ffado-test-streaming ffado_streaming_wait ============================================ Xruns: 0 ============================================ ---------------------------------------------------- Dumping StreamProcessorManager information... Period count: 117 Data type: float Receive processors... StreamProcessor 0x821c3c8, Receive: Port, Channel : 0, 0 Packets, Dropped, Skipped : 25054, 802, 0 Now : 02709079182 (110s 1861c 2190t) Xrun? : False State : ePS_Running Buffer : 0x821c488 Framerate : Nominal: 44100, Sync: 44099.974339, Buffer 44099.974339 TimestampedBuffer (0x821c488): 0408 frames, 0408 events Timestamps : head: 2708841755.328, Tail: 2709069125.256, Next tail: 2709073583.490 Head - Tail : -227369.928 (-408.000762 frames) DLL Rate : 4458.225562 (557.278195) DLL Bandwidth : 4.069010e-09 1/ticks (0.100000 Hz) Transmit processors... StreamProcessor 0x821b048, Transmit: Port, Channel : 0, 1 Packets, Dropped, Skipped : 25984, 0, 0 Now : 02709088374 (110s 1864c 2166t) Xrun? : False State : ePS_Running Buffer : 0x82c07c0 Framerate : Nominal: 44100, Sync: 44099.974339, Buffer 44099.979169 TimestampedBuffer (0x82c07c0): 2032 frames, 2032 events Timestamps : head: 2709479218.231, Tail: 2710611609.514, Next tail: 2711182263.375 Head - Tail : -1132391.283 (-2032.004664 frames) DLL Rate : 570652.565216 (557.277896) DLL Bandwidth : 4.069010e-09 1/ticks (0.100000 Hz) ---------------------------------------------------- Port Information Playback 0 (0x82c0848): [0x821b048] [ on] [ Audio] 0040ab0000c24d8b_LineOut 1+2 left 1 (0x8232848): [0x821b048] [ on] [ Audio] 0040ab0000c24d8b_LineOut 1+2 right 2 (0x8234010): [0x821b048] [ on] [ Audio] 0040ab0000c24d8b_LineOut 3+4 left 3 (0x8234080): [0x821b048] [ on] [ Audio] 0040ab0000c24d8b_LineOut 3+4 right 4 (0x82328c8): [0x821b048] [ on] [ Audio] 0040ab0000c24d8b_LineOut 5+6 left 5 (0x8232938): [0x821b048] [ on] [ Audio] 0040ab0000c24d8b_LineOut 5+6 right 6 (0x82329a8): [0x821b048] [ on] [ Audio] 0040ab0000c24d8b_LineOut 7+8 left 7 (0x82c0540): [0x821b048] [ on] [ Audio] 0040ab0000c24d8b_LineOut 7+8 right 8 (0x82c0578): [0x821b048] [ on] [ Audio] 0040ab0000c24d8b_SpdifOut left 9 (0x82c05f8): [0x821b048] [ on] [ Audio] 0040ab0000c24d8b_SpdifOut right 10 (0x82c0150): [0x821b048] [ on] [ MIDI] 0040ab0000c24d8b_MidiPort_1 Capture 0 (0x82178c0): [0x821c3c8] [ on] [ Audio] 0040ab0000c24d8b_MicIn1 left 1 (0x821c390): [0x821c3c8] [ on] [ Audio] 0040ab0000c24d8b_MicIn1 right 2 (0x821b470): [0x821c3c8] [ on] [ Audio] 0040ab0000c24d8b_LineIn 3+4 left 3 (0x82c0330): [0x821c3c8] [ on] [ Audio] 0040ab0000c24d8b_LineIn 3+4 right 4 (0x82c0220): [0x821c3c8] [ on] [ Audio] 0040ab0000c24d8b_LineIn 5+6 left 5 (0x82c0290): [0x821c3c8] [ on] [ Audio] 0040ab0000c24d8b_LineIn 5+6 right 6 (0x82c0688): [0x821c3c8] [ on] [ Audio] 0040ab0000c24d8b_LineIn 7+8 left 7 (0x82c06f8): [0x821c3c8] [ on] [ Audio] 0040ab0000c24d8b_LineIn 7+8 right 8 (0x82c0730): [0x821c3c8] [ on] [ Audio] 0040ab0000c24d8b_SpdifIn left 9 (0x82c0460): [0x821c3c8] [ on] [ Audio] 0040ab0000c24d8b_SpdifIn right 10 (0x82c0788): [0x821c3c8] [ on] [ MIDI] 0040ab0000c24d8b_MidiPort_1 ---------------------------------------------------- -- sujet est machinique! Nova deViator ¤ http://deviator.si ¤ http://skylined.org ¤

13 years, 7 months

Jackd options -H --hwmon and -M --hwmeter for ice1712 -- what does it do?

by Niels Mayer

Finally reading the jackd manpage again ( http://linux.die.net/man/1/jackd ) I notice ////// ////////// ///////// ///////// ////// /////// -H, --hwmon Enable hardware monitoring of capture ports. This is a method for obtaining "zero latency" monitoring of audio input. It requires support in hardware and from the underlying ALSA device driver. When enabled, requests to monitor capture ports will be satisfied by creating a direct signal path between audio interface input and output connectors, with no processing by the host computer at all. This offers the lowest possible latency for the monitored signal. Presently (March 2003), only the RME Hammerfall series and cards based on the ICE1712 chipset (M-Audio Delta series, Terratec, and others) support --hwmon. In the future, some consumer cards may also be supported by modifying their mixer settings. Without --hwmon, port monitoring requires JACK to read audio into system memory, then copy it back out to the hardware again, imposing the basic JACK system latency determined by the --period and --nperiods parameters. ////// ////////// ///////// ///////// ////// /////// I've had this option set forever in qjackctl, and I haven't seen anything particularly special going on. The digital monitor outputs that can be mixed via envy24control(1) or http://mudita24.googlecode.com (see screenshots) are available as "catpure_11" and "capture_12" whether or not this option is given to jackd. So what exactly does this option do? Or is it automatically enabled, when set, by making a connection between the capture ports and the output ports? Being able to use "zero latency monitoring" with jackd is annoying using jackd AND envy24control(1) or mudita24 -- if you manually setup "Zero latency monitoring" in the "Patchbay/Router" panel like I have in the http://code.google.com/p/mudita24/ screenshots, eventually jackd will switch them back to PCM outputs. Therefore you must do the routing via jackd if you're using jack. It would be nice to know that the "-H" option set by qjackctl's setup actually did something useful, like magically tell ALSA (via amixer(1)) to route the output appropriately. (Note that at the ALSA level, the use of jackd only results in switching outputs back to their PCMs, I"ve never figured out how to get jack to automatically switch them back to the the digital mixer, based on routing done in qjackctl.) Niels http://nielsmayer.com PS: likewise what does the "-M, --hwmeter" option do -- again I don't see any difference between this being on or off. And how would it know of the vagaries of the ice1712's metering, the fact that it's a peak meter registering 0 to -48.1dbFS? I'd imagine other hardware metering (RME? MOTU) might have have DSP-based RMS metering, and a totally different architecture than: http://nielsmayer.com/envy24control/envy24mixer-architecture.png

13 years, 7 months

Qtractor/etc. MIDI filter plugin

by Jonathan E. Brickman

I would like to set up a Qtractor (non-mixer, etc.) channel which can lower all MIDI events on a given MIDI channel by one octave. Is there a plugin -- LADSPA, DSSI, LV2, etc. -- which does this? J.E.B.

13 years, 7 months

zynaddsubfx-dssi | yoshimi-dssi

by rosea grammostola

Hi, It seems that it is possible to compile zynaddsubfx as a dssi plugin (saw something on the Renoise forums)... There is only no gui for editing the sound patches afaik. Is it also possible to compile yoshimi as dssi plugin? \r

13 years, 7 months

Qtractor export fails?

by Jonathan E. Brickman

I have a pretty good Qtractor setup, five buses and tracks, and it records one .ogg per track very well. But when I go to do an export, it hangs (using 100% of one of my CPUs). If I click on Cancel, it waits for a while, and then says that the export failed. Anyone know what I should do? J.E.B.

13 years, 7 months

screencast for jack-session with pyjacksm

by torbenh

hi... i have jack-session more or less working in jack2... we are still quite far away from completion, but this is basically how it looks like. http://hochstrom.endofinternet.org/files/pyjacksm-cast01.ogv most of the code is still sitting in svn trunks or git branches. but i hope that stuff will slowly fall into its places -- torben Hohn

13 years, 7 months

Subconscious Affecting Music

by Patrick Shirkey

Hi, Listening to the demo track on Myna made me wonder what progress people on this list are making into the concept of music that affects peoples subconscious mind. Maybe I just have a Pavlovian response but to me that demo track has all the key elements for modern popular dance music. The intention of said music is to make it easy for large groups of people to get together in a large venue and drink alot. Sex is usually a key ingrediant in the crowd mentality that entices people to patronize on mass the venues where music such as the demo track is featured predominantly. You can hear this particular bassline and synth combination in almost all popular Club releases/remixes of the past 3 years. IMO it was Timberland who first nailed that sound. I am actively searching for a way to transcend that sound and vibe but actually get inside the head of the same audience. My intentions are purely subversive in nature ;-) I am wondering if anyone has found anything that is getting close to that level of subconscious absorption? Clearly there is the potential that music of such nature will categorically not be absorbed by people in the same way that music like the demo track is currently. I still wonder if my search will be fruitful or not... Can subconscious intelligence enhancing music actually be made or are we limited to the primitive senses of sexual reproduction and aggression for mass market appeal? -- Patrick Shirkey Boost Hardware Ltd.

13 years, 7 months

non-mixer, Fedora 13 64-bit, issues

by Jonathan E. Brickman

I have got non-mixer to compile and run on F13-64. I had to add /lib64/libpthread.so.0 to the LIBS variables in all of the makefile.inc's, and /lib64/libdl.so.2 also to the LIBS variable in the mixer makefile.inc, and then I had to set LADSPA_PATH, but that's not so bad. What's left is a run-time issue; I don't think non-mixer is finding rubberband: [jeb@youngdavid mixer]$ non-mixer WARNING: File /usr/lib64/ladspa/ladspa-rubberband.cat could not be examined dlerror() output: /usr/lib64/ladspa/ladspa-rubberband.cat: invalid ELF header 130 plugins found in 103 libraries [non-mixer] Your fun is over [jeb@youngdavid mixer]$ The rubberband rpm is installed. Anyone have a suggestion? J.E.B.

13 years, 7 months

jack_netsource question

by Julien Claassen

Hello everyone! I just discovered jack netsource, which seems to belong to the JACK package directly. I had a small play with it on m local machine and it worked fine. Now the question: If I "enslave" another computers JACK, I suppose I can hear the other machines inputs, if I connect correctly, can they also hear my input? Kindly yours Julien -------- Music was my first love and it will be my last (John Miles) ======== FIND MY WEB-PROJECT AT: ======== http://ltsb.sourceforge.net the Linux TextBased Studio guide ======= AND MY PERSONAL PAGES AT: ======= http://www.juliencoder.de

13 years, 7 months

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Linux-audio-user August 2010