Linux-audio-user July 2006

linux-audio-user@lists.linuxaudio.org

131 participants
122 discussions

[linux-audio-user] X events making noise through soundcard.

by Gian Paolo Mureddu

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi everyone! I have noticed this for a long time, but did not actually thought about it until recently. It so happens that apparently a lot of X events produce some sort of noise ranging also from what I am doing. First of all, here are my system's specs: * AMD Athlon 2800+ (S754) * VIA-based motherboard with K8TMM chipset. VIA VT8235 southbridge (the box says VT8237R, but it actually is a VT8235) * 2x 512Mb RAM DIMM sticks DDR PC-2700 * 2x 80 Gb ATA-100 HDDs; one Western Digital, one Seagate. Attached to primary IDE channel. * 1x 40 Gb ATA-133 Maxtor HDD, connected through add-on IDE card. * 1x 10 Gb ATA-66/100 Seagate HDD (used mainly for storing .ogg files), connected through the IDE add-on card * 1x LG CD-RW 52x32x52, secondary IDE master. * 1x LG 16x DVD-RW , secondary IDE slave. * 1x generic brand Floppy disk drive. * 1x GeForce 5900, 128Mb VRAM. Using nVidia's proprietary driver. * 1x Sound Blaster Live! Value, the primary sound card. Using ALSA 1.0.11 emu10k1 driver... This has been my trusty sound card for so many years now. So this noise happens whenever there are events, from dragging the mouse, to cliking on windows, to scrolling a window or even typing some text. The noise is not very audible, only if I crank the volume really high, and it is composed primarily of low frequency sounds. These noises even vary from application to application. They're like clicks in Thunderbird, with a rather low repetition frequency, and a much more rapid succession in Firefox, for instance. When changing focus of windows, or when changing from one virtual desktop with some windows to another (despite if the other has or no windows) the sound I can only describe it as "similar to that sound in Diablo II when you changed tabs or clicked the close button of any other "window", like the Inventory"... I can't really describe it better than that. I will try to see if I can record some these sounds. There's a "base humming" sound in the background if I crank all the way up the volume either on my speakers or headphones. Anyway, my question is what are these, and why are these produced? I know they respond to activity in the computer, mainly from X, or the video card, but why? Another thing that I think I read somewhere a while back. I have optical drives connected to the sound card through analog cables... Is it possible that these are working as "antennas" and what I hear is actually the the activity of the PSU/CPU/Memroy, etc? -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org iD8DBQFEyHrVXM+XOp70dwoRAsj5AJ4xXaDY42LzDVqHODDortO3YK7gjwCdGQsT 3RrbKGGkvr+Sn3/fI6yEWq0= =52/R -----END PGP SIGNATURE-----

18 years, 5 months

[linux-audio-user] problem with new machine

by Dave Phillips

Greetings: Well, the hardware has been assembled, but I have a show-stopper of a problem. When I try to start the machine I get a flash from the cool blue lights on my Antec case, the CPU fan does a little jig, then nothing. :( So how do I go about diagnosing this thing ? All possible connections have been made between the case, the power supply, and the mobo. I've scoured the manuals for those pieces, I can't see that I've missed connecting anything. Here's the main machine parts: MSI K8N Neo2 Platinum motherboard AMD64 CPU Antec Sonata II case with power supply 1 GB RAM in slot 1 Seagate Barracuda drive Lite-on DVD/CD RW drive Any and all suggestions are welcome. I'd like to get this iron running myself, the bench fees at the local shops are outrageous. Best, dp

18 years, 5 months

[linux-audio-user] Re: Nomad - Nord Modular Editor

by Juhana Sadeharju

[ in linux-audio-users, originally in nmedit-devel ] >our first release of Nomad - Nord Modular Editor is now available. It is at http://nmedit.sourceforge.net if that was not mentioned. The Nomad has also a UI builder for building UIs for modules. Check the screenshots and "nomad-ui-editor.jpg". Do we have anything similar? E.g. a collection of audio related widgets for Glade? How Nomad's UI builder could be re-used in other projects? By using it like VSTGUI? By building module UIs for Csound opcodes and writing Csound exporter? I have earlier suggested that Nord Modular modules could be written as Csound instruments, i.e., Nomad + Exporter + Csound == NM clone. One may find several thousands of NM patches from the web. Many of them are advanced and well documented. http://nm-archives.electro-music.com/010_NordModular/014_Interesting_Thread… Juhana -- http://music.columbia.edu/mailman/listinfo/linux-graphics-dev for developers of open source graphics software

18 years, 5 months

[linux-audio-user] Histogram

by Markus Herhoffer

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello! For some research on musical recordings I need a software that is able to generate a graphical histogram (or a CSV table) out of an audio file. I need the dB on the x-axis and the frequency distribution on the y-axis. Audacity is somehow able to do this, but it only analyzes the first 30 seconds. That's insufficient for Beethoven's 9th :-) I could code this by myself but I don't want to invent the wheel a second time. Any ideas? Markus -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFEyefkuXdsp50C0vMRAlGCAJoCoigFdBpx9do1KN5rdBiml5WQ5QCgsGy7 IrC8WO6bwdJQZuqx/HRtThg= =xGOS -----END PGP SIGNATURE-----

18 years, 5 months

[linux-audio-user] nVidia MCP51 HDA

by Mark Knecht

Hi all, Does anyone know what the requirements are to get the high definition audio controller in an NVidia chipset working? lspci says this: 00:10.1 Audio device: nVidia Corporation MCP51 High Definition Audio (rev a2) Currently I'm running 2.6.17-gentoo-r4 with : alsa-tools-1.0.11 alsa-utils-1.0.11 A few emails and forum posts I found from last January suggested it works but I don't see it listed in the Alsa sound card database. Anyone know about this before I subscribe to the alsa-devel list again? Thanks, Mark

18 years, 5 months

[linux-audio-user] How to get SPDIF working with ALSA and M-Audio 2496

by andrew gatt

Hello all, I've been trying to get the spdif output of my m-audio 2496 card for a while now. I've played with .asoundrc files given on the alsa website and used the envy24 control but i still get nothing. Does anyone have a simple to follow step by step guide on getting the spdif to work? Any help would be really appreciated! Andrew

18 years, 5 months

[linux-audio-user] [ANN] Introducing TAPESTREA: a new system/paradigm for sound design

by Ge Wang

Dear linux audio users, (sorry for the cross-posting) tapestrea-0.1 (tap tap) is now released, for Mac OS X, Linux, and Windows. http://taps.cs.princeton.edu/ This is the very first release of TAPESTREA, a new paradigm and system for sound design (new research, led by Ananya Misra, with Perry Cook, Ge Wang, and others at the Princeton Sound Lab). In addition to the release, one can find documentation, papers, audio examples, and a video delineating the ideas and features of Taps at the URL above. The video is about 5 minutes in duration and explains the system clearly. TAPESTREA leverages sinusoidal analysis, wavelet-tree learning, transient analysis, and a new real-time graphical interface to perform analysis, transformation, and synthesis of sounds through a system of "sound templates". In addition, one can write scripts (in ChucK) to provide precise control over various parts of the system, and to script entire compositions combining taps with "traditional" audio synthesis techniques. We invite you to take a look, fire up the system, and let us know of any questions and suggestions. This is the first release, and we still working out some platform and build issues - please let us know if something seems fishy or just plain doesn't work/compile. There is also a taps mailing list for everyone interested in keeping up with the use and development of the system. Join us!!! Thanks!!! Best, Ananya, Perry, Ge!

18 years, 5 months

[linux-audio-user] Recording Problem - Intel Corporation 82801CA/CAM AC'97

by Dave Price

Greetings, I have a dell Latitude 600 with internal Intel Corporation 82801CA/CAM AC'97 Output is fine with Alsa applications I have listed the AMIXER output below - in practice, most of the controls do not appear to be functional. I tried recording with audacity, and at first could not get any signal - by playing with alsamixer, I could get some very low distorted sound to record. I am trying to patch into the mic input from a headphone out - I can hear the sound in the PC Speakers, but not record at any acceptable quality. Any advice on how to get something to record on this laptop would be appreciated. aloha, dave AMIXER reports: Simple mixer control 'Master',0 Capabilities: pvolume pswitch pswitch-joined Playback channels: Front Left - Front Right Limits: Playback 0 - 31 Front Left: Playback 29 [94%] [on] Front Right: Playback 29 [94%] [on] Simple mixer control 'Master Mono',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined Playback channels: Mono Limits: Playback 0 - 31 Mono: Playback 0 [0%] [off] Simple mixer control 'Bass',0 Capabilities: volume volume-joined Playback channels: Mono Limits: 0 - 15 Mono: 0 [0%] Simple mixer control 'Treble',0 Capabilities: volume volume-joined Playback channels: Mono Limits: 0 - 15 Mono: 0 [0%] Simple mixer control '3D Control - Center',0 Capabilities: volume volume-joined Playback channels: Mono Limits: 0 - 15 Mono: 15 [100%] Simple mixer control '3D Control - Depth',0 Capabilities: volume volume-joined Playback channels: Mono Limits: 0 - 15 Mono: 12 [80%] Simple mixer control '3D Control - Switch',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off] Simple mixer control 'PCM',0 Capabilities: pvolume pswitch pswitch-joined Playback channels: Front Left - Front Right Limits: Playback 0 - 31 Front Left: Playback 30 [97%] [on] Front Right: Playback 30 [97%] [on] Simple mixer control 'PCM Out Path & Mute',0 Capabilities: Mono: Simple mixer control 'Line',0 Capabilities: pvolume pswitch pswitch-joined cswitch cswitch-joined cswitch-exclusive Capture exclusive group: 0 Playback channels: Front Left - Front Right Capture channels: Front Left - Front Right Limits: Playback 0 - 31 Front Left: Playback 23 [74%] [on] Capture [off] Front Right: Playback 23 [74%] [on] Capture [off] Simple mixer control 'CD',0 Capabilities: pvolume pswitch pswitch-joined cswitch cswitch-joined cswitch-exclusive Capture exclusive group: 0 Playback channels: Front Left - Front Right Capture channels: Front Left - Front Right Limits: Playback 0 - 31 Front Left: Playback 28 [90%] [on] Capture [off] Front Right: Playback 28 [90%] [on] Capture [off] Simple mixer control 'Mic',0 Capabilities: pvolume pvolume-joined cvolume pswitch pswitch-joined cswitch cswitch-joined cswitch-exclusive Capture exclusive group: 0 Playback channels: Mono Capture channels: Front Left - Front Right Limits: Playback 0 - 31 Capture 0 - 15 Mono: Playback 23 [74%] [off] Front Left: Capture 0 [0%] [off] Front Right: Capture 0 [0%] [off] Simple mixer control 'Mic Boost (+20dB)',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [on] Simple mixer control 'Mic Select',0 Capabilities: Mono: Simple mixer control 'Video',0 Capabilities: pvolume pswitch pswitch-joined cswitch cswitch-joined cswitch-exclusive Capture exclusive group: 0 Playback channels: Front Left - Front Right Capture channels: Front Left - Front Right Limits: Playback 0 - 31 Front Left: Playback 0 [0%] [off] Capture [off] Front Right: Playback 0 [0%] [off] Capture [off] Simple mixer control 'Phone',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined cswitch cswitch-joined cswitch-exclusive Capture exclusive group: 0 Playback channels: Mono Capture channels: Front Left - Front Right Limits: Playback 0 - 31 Mono: Playback 0 [0%] [off] Front Left: Capture [off] Front Right: Capture [off] Simple mixer control 'IEC958',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off] Simple mixer control 'IEC958 Playback AC97-SPSA',0 Capabilities: volume volume-joined Playback channels: Mono Limits: 0 - 3 Mono: 2 [67%] Simple mixer control 'PC Speaker',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined Playback channels: Mono Limits: Playback 0 - 15 Mono: Playback 11 [73%] [on] Simple mixer control 'Aux',0 Capabilities: pvolume pswitch pswitch-joined cswitch cswitch-joined cswitch-exclusive Capture exclusive group: 0 Playback channels: Front Left - Front Right Capture channels: Front Left - Front Right Limits: Playback 0 - 31 Front Left: Playback 0 [0%] [off] Capture [off] Front Right: Playback 0 [0%] [off] Capture [off] Simple mixer control 'Mono Output Select',0 Capabilities: Mono: Simple mixer control 'Capture',0 Capabilities: cvolume cswitch cswitch-joined Capture channels: Front Left - Front Right Limits: Capture 0 - 15 Front Left: Capture 0 [0%] [off] Front Right: Capture 0 [0%] [off] Simple mixer control 'Mix',0 Capabilities: cswitch cswitch-joined cswitch-exclusive Capture exclusive group: 0 Capture channels: Front Left - Front Right Front Left: Capture [off] Front Right: Capture [off] Simple mixer control 'Mix Mono',0 Capabilities: cswitch cswitch-joined cswitch-exclusive Capture exclusive group: 0 Capture channels: Front Left - Front Right Front Left: Capture [on] Front Right: Capture [on] Simple mixer control 'External Amplifier',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [on] Simple mixer control 'Loudness (bass boost)',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off] Simple mixer control 'Simulated Stereo Enhancement',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off] .....................

18 years, 5 months

[linux-audio-user] Midi works with xfst and AmSynth but not with Bristol & ZynaddSubFx

by Esa Linna

This is strange. Started Jack, connected the midi keyboard via Edirol UM-1X and everything's fine with xfst and VST instruments, as well as AmSynth. But Bristol synths and ZynaddSubFx don't work with it..? Any suggestions to find the solution for this. Before this day everything worked fine. -- ----------------------- http://www.emvg.net/esa http://www.emvg.net -----------------------

18 years, 5 months

[linux-audio-user] Re: S/PDIF capture with m-audio 2496

by Kjetil S. Matheussen

> Rob Jackson wrote: >> Could anyone please give me a step-by-step guide to setting up my >> m-audio 2496 to capture from the S/PDIF? I am trying to record into >> either Audacity or Ardour, but cannot 'find' any sound. As far as I can see, there are no routing possibilities for input S/PDIF on an m-audio 2496 using the envy24control. For output, you can route any channel to s/pdif in hardware using that program. So what you have to do, is to use channel 9 and 10 instead, which I guess is hardwired to s/pdif in. (Maybe you could also mess around with .asoundrc, a third option is to hack the snd-ice1712 driver)

18 years, 5 months

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Linux-audio-user July 2006