Linux-audio-user December 2006

linux-audio-user@lists.linuxaudio.org

161 participants
166 discussions

RE: [linux-audio-user] where are the "made in linux "logo's now ?

by Geoff Beasley

sorry Ico, i didn't mean the CD covers; there were some "mde in linux" icons i saw a while ago for use on web sites or album covers and the like. anyone else seen them ? best, g.

17 years, 5 months

[linux-audio-user] Listserve back up

by Ivica Ico Bukvic

Curiously, shortly following the changing of the network card adapter which brought the consortium Web server back up, the consortium lists are now back as well. It appears that there is some kind of "umbilical cord" :-P that my mental radar failed to notice between the two and therefore the listserve has been for some reason bogged down due to network issues we've been experiencing on the Web server (which is a rather curious thing since the Web server has mail service disabled... go figure!). Well, I am glad that got resolved, sort of :-) Best wishes, Ivica Ico Bukvic, D.M.A. Composition, Music Technology, CCTAD, and CHCI Virginia Tech Dept. of Music - 0240 Blacksburg, VA 24061 (540) 231-1137 (540) 231-5034 (fax) ico(a)vt.edu http://www.music.vt.edu/people/faculty/bukvic/

17 years, 5 months

[linux-audio-user] where are the "made in linux "logo's now ?

by Geoff Beasley

can't find them anywhere g.

17 years, 5 months

[linux-audio-user] Consortium "Made in Linux" cover idea

by Ivica Ico Bukvic

Apologies for the cross-posting -- the consortium listserv that is hosted by Agnula server continues to refuse forwarding e-mail to its members... Apropos CD covers for the vol.1, how about taking the image from the http://lau.linuxaudio.org/faq/ ? IMHO it best portrays the idea of "Tux Power" without even having to explicitly state the subtitle. So, we could have the subtitle on the side and the back but perhaps not on the front side of the cover? Or if we do have it on the front, perhaps making it intentional small and inconspicuous? Best wishes, Ivica Ico Bukvic, D.M.A. Composition, Music Technology, CCTAD, and CHCI Virginia Tech Dept. of Music - 0240 Blacksburg, VA 24061 (540) 231-1137 (540) 231-5034 (fax) ico(a)vt.edu http://www.music.vt.edu/people/faculty/bukvic/

17 years, 5 months

Re: [linux-audio-user] hdsploader / changing soundcards

by Sampo Savolainen

Quoting Georg Holzmann <georg.holzmann(a)student.kug.ac.at>: > So my question, is there also a way to get hdsploader working without > plugging out/in the card ? (and without a reboot) Sounds like you have the PCMCIA card, right? I use "sudo pccardctl eject" "sudo pccardctl insert" to reinsert the card. There is no need to physically remove the card in between the commands. So it's essentially the same as reloading the driver. Sampo

17 years, 5 months

[linux-audio-user] Re: Recording Fluidsynth playing a MIDI file with ardour

by Kjetil S. Matheussen

"Kjetil S. Matheussen": >> >> Hi, >> >> I'd like to be able to play a MIDI file with fluidsynth and have ardour record the output to I can mix other tracks into it. The two approaches I could think of were: >> >> 1. Have fluidsynth output to a WAV file and import that into ardour. I >> haven't been able to do that because I can find a fluidsynth output >> driver that writes to a file. >> >> 2. Connect the output of fluidsynth to the ardour track with jack. >> This is also problematic because I can't use qjackctl to make the >> connection until fluidsynth is started but I don't seem to be able to >> start fluidsynth and give it a MIDI file without it starting to play the >> file immediately so by the time I've made the connections and hit >> "record" it is half way through. >> >> Does anyone please have ideas how I can do this? >> > > jack_capture constantly monitors which jack ports are connected to > the soundcard, so it will record everything you hear, even if fluidsynth > makes the jack connection after it starts playing. ^^^^^^^^^^^^^^^^^^^^^^^ Hmmm. I actually meant to say: "after jack_capture starts recording". :-)

17 years, 5 months

[linux-audio-user] Re: Recording Fluidsynth playing a MIDI file with ardour

by Kjetil S. Matheussen

Steve Fosdick: > > Hi, > > I'd like to be able to play a MIDI file with fluidsynth and have ardour record the output to I can mix other tracks into it. The two approaches I could think of were: > > 1. Have fluidsynth output to a WAV file and import that into ardour. I > haven't been able to do that because I can find a fluidsynth output > driver that writes to a file. > > 2. Connect the output of fluidsynth to the ardour track with jack. > This is also problematic because I can't use qjackctl to make the > connection until fluidsynth is started but I don't seem to be able to > start fluidsynth and give it a MIDI file without it starting to play the > file immediately so by the time I've made the connections and hit > "record" it is half way through. > > Does anyone please have ideas how I can do this? > jack_capture constantly monitors which jack ports are connected to the soundcard, so it will record everything you hear, even if fluidsynth makes the jack connection after it starts playing. After recorded, you can import the sound into ardour. jack_capture can be downloaded here: http://www.notam02.no/arkiv/src/ As an alternative, I think you can use the patchbay in qjackctl as well to make sure fluidsynth always connects to ardour.

17 years, 5 months

[linux-audio-user] Fwd: freebob problem

by Ypatios Grigoriadis

Hello list! I cannot get the freebob driver running for Edirol FA101. I compiled and installed libfreebob and jackd, but when I start jack I get the following error message: ------------------------ jackd -dfreebob -dhw:0 -r48000 -p1024 -n3 -i0 -o0 jackd 0.102.20 Copyright 2001-2005 Paul Davis and others. jackd comes with ABSOLUTELY NO WARRANTY This is free software, and you are welcome to redistribute it under certain conditions; see the file COPYING for details JACK compiled with System V SHM support. loading driver .. Freebob using Firewire port 0, node -1 FreeBoB ERR: FREEBOB: Error creating virtual device cannot load driver module freebob Segmentation fault -------------------------- The test program included by libfreebob gives the following output: ------------------------------------------------ root@YpatiosLIVE:/usr/local/src/libfreebob-1.0.0/tests# ./test-freebob discover verbose level = 0 Using freebob library version: libfreebob 1.0.0 port = 0, devices_on_bus = 1 get info for device = 0, node = 1 Direction: 0 (capture) Connection Info =============== Number of connections: 1 Connection 0 ------------- [ 0] Id: 1 [ 0] Port: 0 [ 0] Node: 1 [ 0] Plug: 0 [ 0] Dimension: 11 [ 0] Samplerate: 44100 [ 0] IsoChannel: -1 [ 0] IsMaster: 0 [ 0] Number of stream infos: 11 StreamId Position Location Format Type DPort Name -------------------------------------------------- [ 0]:[ 0] 0x01 0x01 0x06 0x02 0x00 MicIn1 left [ 0]:[ 1] 0x06 0x02 0x06 0x02 0x00 MicIn1 right [ 0]:[ 2] 0x02 0x01 0x06 0x03 0x00 LineIn 3+4 left [ 0]:[ 3] 0x07 0x02 0x06 0x03 0x00 LineIn 3+4 right [ 0]:[ 4] 0x03 0x01 0x06 0x03 0x00 LineIn 5+6 left [ 0]:[ 5] 0x08 0x02 0x06 0x03 0x00 LineIn 5+6 right [ 0]:[ 6] 0x04 0x01 0x06 0x03 0x00 LineIn 7+8 left [ 0]:[ 7] 0x09 0x02 0x06 0x03 0x00 LineIn 7+8 right [ 0]:[ 8] 0x00 0x01 0x06 0x04 0x00 SpdifIn left [ 0]:[ 9] 0x05 0x02 0x06 0x04 0x00 SpdifIn right [ 0]:[10] 0x0a 0x01 0x0d 0x0a 0x00 MidiPort_1 Direction: 1 (playback) Connection Info =============== Number of connections: 1 Connection 0 ------------- [ 0] Id: 1 [ 0] Port: 0 [ 0] Node: 1 [ 0] Plug: 0 [ 0] Dimension: 11 [ 0] Samplerate: 44100 [ 0] IsoChannel: -1 [ 0] IsMaster: 0 [ 0] Number of stream infos: 11 StreamId Position Location Format Type DPort Name -------------------------------------------------- [ 0]:[ 0] 0x01 0x01 0x06 0x03 0x00 LineOut 1+2 left [ 0]:[ 1] 0x06 0x02 0x06 0x03 0x00 LineOut 1+2 right [ 0]:[ 2] 0x02 0x01 0x06 0x03 0x00 LineOut 3+4 left [ 0]:[ 3] 0x07 0x02 0x06 0x03 0x00 LineOut 3+4 right [ 0]:[ 4] 0x03 0x01 0x06 0x03 0x00 LineOut 5+6 left [ 0]:[ 5] 0x08 0x02 0x06 0x03 0x00 LineOut 5+6 right [ 0]:[ 6] 0x04 0x01 0x06 0x03 0x00 LineOut 7+8 left [ 0]:[ 7] 0x09 0x02 0x06 0x03 0x00 LineOut 7+8 right [ 0]:[ 8] 0x00 0x01 0x06 0x04 0x00 SpdifOut left [ 0]:[ 9] 0x05 0x02 0x06 0x04 0x00 SpdifOut right [ 0]:[10] 0x0a 0x01 0x0d 0x0a 0x00 MidiPort_1 -------------------------------- Has anyone some suggestions, how to get the driver work ? Many thanks, -- Ypatios. -- Ypatios.

17 years, 5 months

[linux-audio-user] Linuxaudio.org site problems

by Ivica Ico Bukvic

Just to let everyone know, we are experiencing some problems with the Linuxaudio.org server. As a result, we will have a downtime over the weekend and possibly a good portion of Monday. My sincere apologies if this unfortunate development has caused you any inconvenience. Your patience and understanding in this matter is most appreciated! Should you happen to have any additional questions and/or concerns, please do not hesitate to contact me. Best wishes, Ivica Ico Bukvic, D.M.A. Composition, Music Technology, CCTAD, and CHCI Virginia Tech Dept. of Music - 0240 Blacksburg, VA 24061 (540) 231-1137 (540) 231-5034 (fax) ico(a)vt.edu http://www.music.vt.edu/people/faculty/bukvic/

17 years, 5 months

[linux-audio-user] Pre-Amp hum (related to jack, somehow)

by Carlo Capocasa

The irony of this is killing me. I had a singing capacitor in my notebook computer, which I was able to solve using a load generator at a low scheduling priority. However, that same capacitor is what had triggered me to get a higher-end sound card in the first place. Now this higher end sound card has quite a loud hum when the phantom power for its mic pre-amps is on. Interestingly, when I mix the signals from both pre-amps by connecting them both to the same outputs in JACK, the noises from the Mics cancel each other out. The load generator has no influence on the hum; however, the sampling rate does. The higher the sampling rate the higher pitched the hum is. The inverse is true for buffer size: The larger the buffer, the lower pitched the hum. My current theory is this: Jack causes a surge of power in the CPU through an interrupt. This surge gets transformed into current in the grounding cable through electromagnetic induction, which in turn induces a current in the microphone pre-amps, which causes the hum. The hums can cancel each other out because... uh, not the slightest on that one. Help appreciated. Carlo

17 years, 5 months

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Linux-audio-user December 2006