Linux-audio-user August 2004

linux-audio-user@lists.linuxaudio.org

148 participants
163 discussions

Re: [linux-audio-user] Linux Audio Human Interface Guidelines, 0.01 (was Re: mouse wheel behavior and RFC: human interface, guidelines)

by philicorda

Paul Winkler wrote: "I could swear I remember seeing an old tube compressor that had a gain reduction meter with "more" to the right, so it moved in opposition to the corresponding VU meter. No idea what model it was, and this was about 6 years ago so I could be mistaken. I wonder how consistent this is in the world of hardware? maybe I'll pop a question on rec.audio.pro." I built a tube compressor like that, an Altec436c. The 'gain reduction' meter measures the bias current of the vari-mu valve, which is reduced when gain reduction is required. The meter goes from right to left. (Any other way would require more circuitry, so I think it may just be a lucky accident.) Talking of meters, don't some phase meters often go left *and* right from a centre point to show averaged phase difference between the channels?

19 years, 8 months

[linux-audio-user] terratec 5.1 PCI

by Christoph Rupp

Hi, has someone made experiences with the Terratec 5.1 PCI soundcard? according to the alsa soundcard matrix, Terratec 5.1 Fun and 5.1 Sky are supported, but i found no information about 5.1 PCI. If not, maybe you can give me recommendations for another brand? the terratec 5.1 pci costs about 20 euros; i don't need MIDI, and i don't need sophisticated recording abilities. here's more about the card: http://productsen.terratec.net/modules.php?op=modload&name=News&file=articl… thanks, Chris

19 years, 8 months

[linux-audio-user] Linux Audio Human Interface Guidelines 0.01 (was Re: mouse wheel behavior and RFC: human interface guidelines)

by Lee Revell

I just realized I posted this to LAD but not LAU. Since the whole point of HIGs is to be reflect user rather than developer needs, I am reposting it here. OK, so if I were to start writing the Linux Audio Human Interface Guidelines based on all of the feedback from this post, I would say something like the following. I have used the type of language you would find in an Internet RFC. "Sliders MUST be operable with the mouse wheel. This MUST only be enabled when mousing over a slider, otherwise, the mouse wheel MUST retain its normal behavior of scrolling the window. For a vertical slider, rolling the mouse button away from you (hereafter: wheel-up event) MUST increase the value of the parameter, and wheel-down MUST decrease the value. For a horizontal slider, wheel-up SHOULD increase the value, and wheel-down SHOULD decrease the value by default. However, this behavior MUST be configurable. If a system-wide facility to control this is unavailable then the app MUST provide a configuration mechanism." Additional submissions are welcome and in fact essential, since the above only covers one aspect of one widget's behavior. Lee

19 years, 8 months

[linux-audio-user] Re: Linux Audio Human Interface Guidelines 0.01

by Matt Barber

->"Sliders MUST be operable with the mouse wheel. This MUST only be enabled when mousing over a slider, otherwise, the mouse wheel MUST retain its normal behavior of scrolling the window. For a vertical slider, rolling the mouse button away from you (hereafter: wheel-up event) MUST increase the value of the parameter, and wheel-down MUST decrease the value. For a horizontal slider, wheel-up SHOULD increase the value, and wheel-down SHOULD decrease the value by default. However, this behavior MUST be configurable. If a system-wide facility to control this is unavailable then the app MUST provide a configuration mechanism."<- Possible to make it like one of those nintendo emulators, where you have a default setting, several presets, plus "line item" configuration if you want? From what I've read about this in the past, it seems like there's enough difference in opinion that the only solution would be one that allows people to keep their difference of opinion, and to me it seems extra configuration is worth the extra work in coding... but I'm not a programmer so I don't really know how much extra the work is. Matt

19 years, 8 months

[linux-audio-user] Stopping cron jobs

by Rick B

Hi all, Is there a way to keep cron jobs from running while doing audio work? I mean heaven forbid I'm doing something at 4am and cron wants to prelink and update the database. Rick B

19 years, 8 months

Re: [linux-audio-user] Rosegarden MIDI recording

by Pedro Lopez-Cabanillas

On Wednesday 25 August 2004, Michal Seta wrote: > > I have tried just about any concievable configuration but to no > > avail. Is there anything special I have to do, other than in 0.9.8 > > (recording worked fine there) to record? > > ok, so I recompiled 0.9.8 and eveerything seems to be working for now. I'm > still willing to give 0.9.9 a go but... There is a little change between Rosegarden 0.9.8 and 0.9.9 regarding record devices. In 0.9.8 you could record only from one source, and the subscription was automatic (although you could change it later) to the first readable ALSA sequencer port in the system. In 0.9.9 you can record from any number of devices at a time, but you need to subscribe to them by hand. To do this, go to the main window menu, select "Composition/Studio/Manage MIDI devices" item to open the MIDI Manager window, and use the bottom half controls (click over some checkboxes under the "current" header column) to select the active(s) MIDI recording devices. This is a very new feature, and there can be bugs. Rosegarden is now in beta testing, prior to the 1.0 release and we are very much interested on bug reports. Please report if this doesn't work to the rosegarden-devel mailing list. Thanks. Regards, Pedro

19 years, 8 months

[linux-audio-user] Hydrogen compile problem

by Jos Laake

Hi, I'm trying to compile hydrogen on my CCRMA/RedHat PC (Pentium 4) And I get this error: -------------------------------------------------------------------- g++ -DHAVE_CONFIG_H -I. -I. -I.. -I../lib -I/usr/lib/qt-3.1/include -I/usr/X11R6/include -DQT_THREAD_SUPPORT -D_REENTRANT -O3 -c -o PatternEditor.o `test -f 'PatternEditor.cpp' || echo './'`PatternEditor.cpp PatternEditor.cpp: In constructor `PatternEditor::PatternEditor(QWidget*, PatternEditorPanel*)': PatternEditor.cpp:41: `WNoAutoErase' undeclared (first use this function) PatternEditor.cpp:41: (Each undeclared identifier is reported only once for each function it appears in.) make[3]: *** [PatternEditor.o] Error 1 make[3]: Leaving directory `/I/Useful_Stuff/Linux/Audio/hydrogen-0.9.0beta1/hydrogen_gui' make[2]: *** [all-recursive] Error 1 make[2]: Leaving directory `/I/Useful_Stuff/Linux/Audio/hydrogen-0.9.0beta1/hydrogen_gui' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/I/Useful_Stuff/Linux/Audio/hydrogen-0.9.0beta1' make: *** [all] Error 2 -------------------------------------------------------------------- Any suggestions? Thanks in advance for any reply. Peace, ~Jos~

19 years, 8 months

[linux-audio-user] Rosegarden MIDI recording

by Michal Seta

Hi, I would just like quickly whip some MIDI sequences. I had RG 0.9.8 but couldn't get metronome working (everything was fine in the setup dialog, I could hear a sound and all but no luck when rolling). SO anyways, short story, I noticed that 0.9.9 was out. Downloaded, compiled and he metronome is working but I cannot record any midi. I can see the levels associated with tracks going on MIDI events, on the track canvas I can see white lines blinking when I play but nothing actually stays recorded. I have tried just about any concievable configuration but to no avail. Is there anything special I have to do, other than in 0.9.8 (recording worked fine there) to record? thanks in advance for any pointers. ./MiS

19 years, 8 months

[linux-audio-user] darla 20

by kmd

is anyone using a Darla 20 (echo corporation) with linux & alsa? I'm about to build a linux audio box that will be integrated in a studio. I have a darla 20 left and would like using it. the card should work with alsa http://xoomer.virgilio.it/g_pochini/ea.html . but the alsa page tells me the support has been "discontinued" http://www.alsa-project.org/alsa-doc/index.php?vendor=vendor-Echo_Corporati… any experiences? regards, kmd

19 years, 8 months

[linux-audio-user] Re: fc2 and audacity and jackd

by Matt Barber

->Using fc2, I've tried to compile audacity so I can use it with jackd. Primarily so I can use my ice1712 (delta 44) recording card. I'm completely frustrated, anyone successfully done this? I'd love some help. Daryl<- Will it not compile? I assume you've read all the directions about enabling portaudio v19.... my biggest problem compiling audacity has been in the linking. There is a known bug in the configure process for portaudio v19, where you have to descend into the src directory of the build tree, open the Makefile, and in the "LIBS" section, add -lasound and -ljack at the end of the line - this may have been fixed since the last time I tried compiling it... so I'm not sure if this is still a problem. This is just my guess as to what your problem is; some specifics would be helpful. (I've never tried it under the 2.6 kernel...) Matt

19 years, 8 months

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Linux-audio-user August 2004