Linux-audio-user February 2008

linux-audio-user@lists.linuxaudio.org

143 participants
139 discussions

by BRIAN.M.CARTY＠nuim.ie

Hi All,I am having a problem getting audio out of my Dell D620 using Fedora 5.Onboard sound (SigmaTel Audio)does not appear to send anything to thespeakers or headphone output when playing a cd, playing a wav file, orrendering audio with Csound.Any suggestions would be greatly appreciated.Brian Carty,NUI Maynooth

16 years, 2 months

Re: [LAU] tool to seperate elements of a song

by Sebastian Tschöpel

> > A musician can be trained to mentally separate the parts of an > > orchestra; why could not a machine do the same ? > > @daemian There isn't just a big leap from machine to musician but also: You can focus on (not seperate) certain instruments to quasi-isolate the important part. Thats just a question of pratice. schoappied asked for a program to "switch off" certain instruments which i doubt even a conductor is able to do inside his brain. And when i said it's impossible, i thought of the possibilities that are currently available. You could be right: This hasn't to be impossible at all but imho under some strong assumptions: - we are able to collect and compute all the necessary information with our senses and brain to perform this "switch off" ( i doubt that ) - we would learn what these information are - we could teach a machine to do that Thus, i think it would need a lot more, especially imagination :) @schoappied I forgot to ask: What do you want to do with the isolated tracks anyway? Maybe there's another work-around. -- Best regards, Sebastian. Web: linuxaudioblog.sternenhejim.de On Sat, 2008-02-23 at 19:30 +1100, simon wise wrote: > On 23 Feb 2008, at 10:48 AM, Jean-Baptiste Mestelan wrote: > > (I'm not implying it would be trivial, though ;-) > > it's a big leap from machine to musician! > > It is hard enough to get a machine to be a good instrument for a > musician to play, let alone to analyse a sound as a musician would. > Still, what a machine does now would have been sci-fi to most people > just 20 years ago. > > > simon > > > _______________________________________________ > Linux-audio-user mailing list > Linux-audio-user(a)lists.linuxaudio.org > http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user >

16 years, 2 months

myvideo and commandline

by Julien Claassen

Hi! Anyone know of a tool to download from myvideo. Something like youtube-dl, or could I simply modify youtube-dl to ignore the url check? Kindest regards 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

16 years, 2 months

Any links to some basic DSP code ?

by Arda Eden

Hi, I'm looking for some basic DSP algorithms, just to examine how things work. Can somebody route me to any links or documentary ? -- Arda EDEN Cumhuriyet University Faculty of Fine Arts Department of Music Technology

16 years, 2 months

Yet another jack question

by M-.-n

After successfully implementing the audio connection of my tracker with jack, I'm not trying to have the midi part running. It seems fairely easy from what I got however I'm facing a connection problem to be able to test it properly: In qjackctl, the midi connection I create appears correctly in the midi tab. However, all synth I've tried (amSynth/rtsynth) create their midi input from alsa and the connection appears in the alsa tab without any apparent way of connecting my output to their input. Is that normal ? Is there really two 'categories' or midi connection and does that mean I should use alsa driver instead ? I was kind of liking the apparent audio/midi syncronisation jack was providing... If anyone knows of a synth that uses jack for midi, it'd be nice too Thanks Marc

16 years, 2 months

can't hear the LFE channel

by Florin Andrei

Ubuntu 7.04 sound card Delta 1010 The speakers are connected to outputs #1 and 2 on the card. This works very well for stereo stuff. Today I put the Avia II DVD in the system and played the audio tests using Xine as a software DVD player. Xine uses ALSA for output. The Dolby 5.1 test for identifying the speakers was fine for the most part: - I could hear the front left and the surround left channel in the left speaker - the front right and surround right channels in the right speaker - the front center channel in both speakers However, I hear nothing during the LFE (subwoofer) channel test. Yes, my audio chain should be able to reproduce that frequency, it's a pair of fairly good studio monitors connected through a Mackie box to the 1010. I tried to reconfigure Xine, changed a few things in the Audio section, but still nothing. There are some other tests for the speakers, containing low frequency signal, and those played just fine. It looks like if there's signal only in the LFE channel, while the other channels are silent, then no sound is reproduced. I could only test with Xine, other players either crash or don't work very well on this machine. Same test failed on the laptop: ThinkPad T60 sound card Intel 82801G Ubuntu 7.10 It also failed on another laptop running Vista, tested with several players - Windows Media Player, VLC, some Dell media player. Same deal: if there's signal only in the LFE channel, then no signal is reproduced. The DVD is fine, I put it in my hardware DVD player and the LFE channel test played just fine. -- Florin Andrei http://florin.myip.org/

16 years, 2 months

Module tracker for the console

by Julien Claassen

Hi everyone! Can one of you recommend a simple modtracker or mod editor for the text-console? Preferably with alsa-support. OK, preferable it should have wings and be gold and shiny... :-) No in ernest: Nothing too fancy, for I'll have to navigate it with a braille display. The only thing I expect of it is: Load an existing module Substitue stored samples Save a mod. Ideas, suggestions anyone? Kindest regardsa and thanks 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

16 years, 2 months

Re: [LAU] jack/alsa/libfreebob with Phase X24

by Pieter Palmers

Steel Side wrote: > Wow, great! It works! > > here's the jack_lsp anyway: > [daniel@dyx ~]$ jack_lsp > JACK tmpdir identified as [/dev/shm] > Enhanced3DNow! detected > SSE2 detected > freebob_pcm:dev1c_Line_1/2 left PHASE X24 FW > freebob_pcm:dev1c_Line_1/2 right PHASE X24 FW > freebob_pcm:dev1c_SPDIF left PHASE X24 FW > freebob_pcm:dev1c_SPDIF right PHASE X24 FW > freebob_pcm:dev1p_Multichannel 1 PHASE X24 FW > freebob_pcm:dev1p_Multichannel 2 PHASE X24 FW > freebob_pcm:dev1p_Multichannel 3 PHASE X24 FW > freebob_pcm:dev1p_Multichannel 4 PHASE X24 FW > > Now, as this works, i want to progress. Is there anyway i can make > everything go out standard through my fw card? > And the no application at all as in -> i only had hydrogen, mplayer and > totem to test with atm, and none of them wanted to send it to my fw card > (well, totem and mplayer has not been so kind to even include a jack > option, and the alsa one did not send through my fw card.) > What i basically want is equal or better performance than what i had on > windows (which, judging from jack and hydrogen, sure is possible for the > more advanced applications at least), but a vital point would be that i > could have every application go through my fw card, instead of the > builtin one. At the moment you can only use jack-enabled applications. Greets, Pieter > > Grateful for your help, > yours, > Daniel > On Tue, Feb 19, 2008 at 9:41 PM, Pieter Palmers <pieterp(a)joow.be > <mailto:pieterp@joow.be>> wrote: > > Steel Side wrote: > > Heya, been looking for some days now for a fix to my problem - no > > application wants to output to my phase x24 fw soundcard. > > When i posted about it is was linked to this mailing list :) > > do you mean "no application at all" or is it a more limited set (e.g. > hydrogen only)? > > ... > > > > > From that i think it looks OK(but then I'm new to this), (except for > > the warnings, i don't know where they are from, and google wouldn't > > enlighten me) > > The warnings are not important. > > what does "jack_lsp" return? > > > > > However, when starting hydrogen i get this up my face (when i select > > JACK as output driver): > > Error starting audio driver > > Jack driver: cannot connect output port. > > I suspect that this is an autoconnect issue. It's not really a > jack/freebob issue, but is misbehavior of the application. > > In case of hydrogen, try the following: > * click away the error dialogs > * go to file->preferences > * go to the "Audio System" tab > * unselect the "Connect to default output..." checkbox > * press ok > * restart hydrogen > > Now go to qjackctl and manually connect the hydrogen ports to the > soundcard ports. > > This should work. > > .... > > > > > Sorry if this message is bloated, but i believe in more > information than > > too little. > > That's a respected attitude around here. > > Greets, > > Pieter > > > > > -- > //Cincerly SteelSide > //Mvh Daniel

16 years, 2 months

[OT] Another problem with creative commons licenses

by Cesare Marilungo

Here's the story: I published some tracks of mine at opsound.org. At the time I submitted these tracks, the license was by-nc-sa, which is the same license I've always used for all the other websites where I've put my stuff. Now they've changed the license and removed the non-commercial clause. As a result of this, may more websites (which crawl the content from opsound) host my tracks with the by-sa license. Could they do this? What can I do now? -c. -- www.cesaremarilungo.com

16 years, 2 months

disabling specific USB audio interface

by Hector Centeno

Hi, I recently bought a USB keyboard without realizing it had a built-in audio interface. Alsa loads it (using the snd-usb-audio module) and actually kind of works (a lot of xruns) but I don't really want to use it and it messes the sound routing since some apps insist in doing their output through it (like the "play" command which is used for tooltip audio preview in Nautilus and the Flash player in Firefox). I already set it to the highest index and made sure is not selected as default in the gnome sound preferences (both Sound Preferences and Audio Configuration) but keeps causing these routing problems. Is there a way of completely disabling it without blacklisting snd-usb-audio in /etc/modprobe.conf? I have a M-Audio USB interface that I would like to be able to plug in and use. (I'm using Fedora 8 and Planet CCRMA kernel). This is how my modprobe.conf is right now: options snd cards_limit=8 alias snd-card-0 snd-hda-intel options snd-hda-intel index=0 alias snd-card-1 snd-usb-audio options snd-usb-audio index=1 and: $ sudo cat /proc/asound/cards 0 [Intel ]: HDA-Intel - HDA Intel HDA Intel at 0xfebf8000 irq 22 1 [Audio ]: USB-Audio - USB Audio Elan USB Audio at usb-0000:00:1d.7-2.4, full speed Thanks, Hector

16 years, 2 months

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Linux-audio-user February 2008