Linux-audio-user

linux-audio-user@lists.linuxaudio.org

24 participants
20701 discussions

by Jon Ellis

Hi, Yesterday i ended up created an ebuild to build jack from cvs - ardour needed v0.41 and gentoo is still using the 0.34 release. Updating jack broke alsaplayer (v0.99.72 is the latest in portage and the support for jack v0.4+ is in 0.99.73 :-) ) and it looks like another cvs build is in order... How are others coping with this stuff? Is anyone interested in setting up somewhere to share ebuilds, working together on getting them into the official portage? j. -- - I don't want knowledge, I want certainty. - David Bowie

23 years, 1 month

[linux-audio-user] possible prolems with rc6 aplay (IGNORE)

by patrick reardon

sorry, i meant to post that to alsa-devel. oops patrick

23 years, 1 month

[linux-audio-user] possible problems with rc6 aplay

by patrick reardon

hi everyone: i'm running on a PIII with kernel 2.4.18 and Alsa 0.9.0rc6 and a Hammerfall 9636 card. Alsa has been working fine for the last year, or so it seems. recently a scsi CD burner was installed. i have some recordings of live performances made with "arecord", version 0.9.0beta8a. they play back just fine, but when i tried to burn them to CD, they were low by about 2 to 3 half steps. Joerg Shilling suggested that Alsa was writing the wrong headers. so i upgraded to rc6 and on the first try on each of the old WAV files, "aplay" also played them too slowly. however, on subsequent runs, everything was fine again. i don't understand this behaviour at all. someone on LAU suggested that since it was too low by about 2-3 half steps, data was being recorded at 48000 but Alsa thought it was at 44100. info in /proc/asound/hammerfall/rme9652: ------------snip------------- . . Latency: 4096 samples (2 periods of 16384 bytes) Hardware pointer (frames): 0 Passthru: no Clock mode: autosync Pref. sync source: ADAT1 IEC958 input: Coaxial IEC958 output: Coaxial only IEC958 quality: Consumer IEC958 emphasis: off IEC958 Dolby: off IEC958 sample rate: error flag set ADAT Sample rate: 44100Hz . . ---------snip----------------- for months up until about an hour ago the ADAT sample rate read 48000. in that hour i changed my .asoundrc from -----------snip--------------- pcm.hammerfall { #"hammerfall" is the alias for "snd-rme9652" in /etc/modules.conf type hw card0 } ctl.hammerfall { type hw card0 } -----------snip--------------- to the following -----------snip--------------- pcm.rme9652 { #changed from "hammerfall" to "rme9652" on 12.15.2002 type hw card 0 } ctl.rme9652 { #same as above comment type hw card 0 } ---------snip----------------- after the .asoundrc change i recorded a fresh WAV and burned it to CD but with the same problem -- too slow. also, with the new .asoundrc, version rc6 plays WAV's recorded with the old .asoundrc and version rc6 a little too fast. i'm at a loss for new ideas to debug this. can anyone enlighten me about this, or does anyone know where i can download some reference WAV files (for example, a middle C tone) to check whether the burning problem might involve Alsa or whether it's something else in my setup? any pointers would be greatly appreciated. tia, patrick

23 years, 1 month

[linux-audio-user] Zalman cooling

by Jon Ellis

There was some talk of silent cooling earlier in the week. It reminded that i need to quiet my new pentium 4 box. Does anyone have any experience with Zalman? In particular, this: http://www.zalman.co.kr/english/product/cnps5700d.htm Seems they have "silent" power supplies... Comments? j. -- - I don't want knowledge, I want certainty. - David Bowie

23 years, 1 month

[linux-audio-user] Quicktoot release number 10

by Patrick Shirkey

We are pleased to announce Quicktoot release number 10 http://www.djcj.org/LAU/quicktoots/ ---------------------------------- A first approach using Protux - Protux tootorial Written by Reinhard Amersberger. Protux-0.14.0 works in a different paradigm. Protux will allow you to utilize the power of keyboard+mouse combination (with no clicks) "Jog-Mouse-Board" or JMB, for short, to vastly speed up the process of audio production. You can use it for a simple Multi Track Project but development from Mustux, the Musician Tools Paradigm Projects, multicultural team is rapid so expect enhancements. ----------------------------------- The purpose of the Quicktoots are to provide a community resource of informative guides for using Linux audio applications. The Quicktoots are the brainchild of Dave Phillips the man responsible for the most comprehensive webpage devoted to Linux audio applications. The Linux Sound and Midi page. Your one stop resource for Linux sound software. http://linux-sound.org/ If you are in the position to link to any of the quicktoots please link to the main page. That way we can keep more accurate statistics on the amount of people viewing the pages. If you are interested in contributing to the Quicktoots please let us know. All work must be submitted to either Dave or myself and we will give advice or make changes to ensure our publishing standard is met. If you are not in a position to format any contributions don't worry because I am willing to format any braindumps. Enjoy. -- Patrick Shirkey - Boost Hardware Ltd. For the discerning hardware connoisseur Http://www.boosthardware.com Http://www.djcj.org ======================================== "Um...symbol_get and symbol_put... They're kindof like does anyone remember like get_symbol and put_symbol I think we used to have..." - Rusty Russell in his talk on the module subsystem

23 years, 1 month

[linux-audio-user] abcmidi question

by Peter Jay Salzman

from the documentation of abcmidi, i would think this would play a Dm7: X:1 T: testing M:4/4 L:1/4 Q:1/4=40 K:C "Dm7" but instead it gives absolute silence, and reports no errors. do i need to do anything special to enable guitar chords with abcmidi? at the very least, is there an alias scheme that i can use so i don't have to type [DFac] everytime i want a Dm7? pete -- First they ignore you, then they laugh at you, then they fight you, then you win. -- Gandhi Fingerprint: B9F1 6CF3 47C4 7CD8 D33E 70A9 A3B9 1945 67EA 951D

23 years, 1 month

[linux-audio-user] Turn-key Linux Audio

by Tim Mayberry

In case it is new to anyone....apart from me. http://lulu.esm.rochester.edu/kevine/turnkey/home.html There is a discussion about it on slashdot.

23 years, 1 month

[linux-audio-user] Meterbridge 0.9.0

by Steve Harris

http://plugin.org.uk/meterbridge/ Changes * Greatly improved the readability of the VU meter * Made the VU meter conform the the AES analogue equivalent levels. This should make it more generally useful without adjustment and if you have properly calibrated DA converters and analogue equipment then the levels should agree. * Made the DPM meter look nicer and easier to read. * Cured a handful of segfaults (thanks to Melanie and Mark K.). * Reduced the maximum CPU usage of the UI. It should never have caused RT problems before, but it could have stolen cycles from other UI threads that needed them more. * Cleaned up and optimised the port insertion (input monitoring) code, its still hacky but cleaner and more reliable now. * Added a "set jack name" option, -n. * Will now make a meter for every non-flag argument, even if there is no port matching that name, so, eg. you can create an unconnected 4 channel meter with "meterbridge - - - -". * More reliable cleanup on exit. Before it goes to 1.0 I'd like some sort of documentation, and maybe to improve the input port monitoring situation. So don't hold your breath ;) If anyone wants to write anything for the docs I would be extremely greatful. I will look at any tricky things, like meter labelling, and antialiased needles after 1.0. - Steve

23 years, 1 month

[linux-audio-user] GSG for home studio? (Newbie question)

by Chris

Hello everyone. I would like to make a small home studio. I haven't played in about 5 years, so I am a little rusty, and not "in" with the times. I was looking on-line for open source mutitracking software. I came across ecasound and ardour. Ecasound looks a little more difficult to use, so I will probably start with ardour. Before I get started, however, I need know a few things, as purchasing new hardware will be a must for me. I was hoping some of you could give me some advice, or let me know what your set up is. Vexing questions: 1) How important is a da-ad converter, and how much must one spend on this? 2) What does one look for in a soundcard. Is it necessary to invest $600 in one -- I mean, where is all that money really going? What makes a card like the hammerfall so great? How much on these cards is "fluff" and how much is really practical for just recording. 3) Do people actually use fiber for their lines? Or is this super-duper high end stuff? 4) I have spent some time on some sites of card manufacturers... and I can't quite piece together how multiple inputs work on the cards... is it a one for one deal (one input = one channel), or is their some software or hardware that allows for more than one channel per input? 5) how good is open-source software for effects processing... I saw something on the ardour site saying that it does not support "plugins"... (due to lack of a standard)... does that mean no effects? 6) What do you guys do for a drum machine solution, is software adequate or do you really recommend getting a drum machine? 7) Does everybody go direct on this, or do they mic their amps (I am primarily a guitar player). How do you keep the sound quality up if you are direct? 8) I want to build a **QUIET** machine... Any suggestions on computer hardware? (I have bought from quietpc, and found that some of the stuff was no quieter than normal --even louder some times). I am sorry to hit everyone at once with these questions (and I have more, belive me), but I can't find a good place on line or otherwise to give me the low-down on what it is needed. I would love to hear the setup others have and the plusses and minuses regarding them. I am accustomed to using cassette tape 4 tracks, and analog mixers and I am pretty familiar with linux and open source stuff (although I am not primarily a coder). I have a marshall jmp-1 preamp with a valvestate 8008, a RockTron intellifex, proq and guitar silencer (all rackmount) on top of a marshall jcm-900 lead-1960. I would be sad to see some of it go, but since I am not performing, I would be willing sell some off if there is better stuff for home recording. I would only need about 4 simultaneous inputs. Excluding the pc I must build, I would like to try to keep the price around $1000 (including the sound card). Is this realistic? I might spend more if I wind up selling some of my current equipment. I would appreciate any advice here. Thank you in advance! Chris

23 years, 1 month

[linux-audio-user] jack+timidity+muse

by luis jure

hello friends, i have successfully built timidity (2.12.0), then jack (0.34.0), and finally muse --with-jack (0.6.0pre5). timidity works by itself, i can play midi files and it sounds. my intention is to use it as a software synthesizer for muse, so i launch it with the option -iA. but muse also requires jack to be running, so first i invoke jack like this: jackd -R -d alsa -d hw:0 and then i can run muse. the problem is that as soon as i have jack running timidity doesn't sound. all right, the real problem is that i never got to fully understand jack, so i have no idea how it works or how i can make things work together. as soon as i begin more confused than before so i give up. any charitable soul could give me a quick hint on how i should invoke timidity and/or jack so that i can use the combination of the two as a software midi device for muse? (i used to use it like this in the past, but that was without jack coming into play) thanks for any help. best, lj

23 years, 1 month

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Linux-audio-user