Linux-audio-user October 2006

linux-audio-user@lists.linuxaudio.org

154 participants
132 discussions

[linux-audio-user] Click and Pop Reduction

by Anna Saranti

Dear List, I would like to find a program that makes click and pop reduction. I've already searched the mailing list archives, and I haven't found anything good. Does somebody have any hints what I could use? Thanks for the help! Anna

17 years, 6 months

[linux-audio-user] .asoundrc for dummies

by Mathias Friman

Hi list. Since I'm not a programmer, trying to document the .asoundrc syntax is somewhat cumbersome. I'm writing an introductory howto for linux music making, in swedish, and I can't really get a grasp of the syntax in .asoundrc or any other alsa configuration file (like those in /usr/share/alsa/) for that matter. I wonder if anyone got easy-to-understand links for this, except the ALSA-wiki and the Gentoo ALSA-howto? These both round up an endless number of examples, but does leave out (IMHO) important parts that is needed for a thourough understanding if you're a moron like me. ;) For example: pcm.!default { type asym playback.pcm { type plug slave.pcm "hw:0,0" } capture.pcm { type plug slave.pcm "hw:1,0" } } This overrides the default setting, uses type asym (which is what exactly? asymmetrical, yes, but what does that mean?) sets a playback.pcm (which is defined where originally?) Why does it say 'slave.pcm "hw:0,0"' and nothing like: pcm_slave.sltest { pcm ens1371 } and what is the difference? etc. and so on, und so weiter A lot of questions, an probably a few stupid ones as well. Regretfully, to be able to explain it properly, I need a somewhat deeper understanding than I have now, and since some of the sharpest minds in the Linux audio community are on this list I thought I'd switch from endless googling to a cry for help. :) I'd be more than glad to write an english howto aswell, for people like me to use. However, I might need some help with correctional reading once it's done. ;) So, anyone got tips, links, an hour to spare or whatever? All is welcome. Regards, Mathias

17 years, 6 months

[linux-audio-user] Qjackctl setup

by joel silvestre

Hi, I can't see no more detailled information about Interface Input Device and Output Device in the Setting window. The "> " button to select PCM , input and output devices show only (default). aplay -l and arecord -l gives : [moa@portable ~]$ aplay -l **** List of PLAYBACK Hardware Devices **** card 0: Intel [HDA Intel], device 0: ALC880 Analog [ALC880 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: Intel [HDA Intel], device 2: ALC880 Digital [ALC880 Digital] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: default [USB Audio CODEC ], device 0: USB Audio [USB Audio] Subdevices: 1/1 Subdevice #0: subdevice #0 [moa@portable ~]$ arecord -l **** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: ALC880 Analog [ALC880 Analog] Subdevices: 2/2 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 card 0: Intel [HDA Intel], device 1: ALC880 Analog [ALC880 Analog] Subdevices: 2/2 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 card 1: default [USB Audio CODEC ], device 0: USB Audio [USB Audio] Subdevices: 1/1 Subdevice #0: subdevice #0 This happen with Qjackctl 0.2.20.10 and Mandriva 2007. I try on two different laptop and it's the same. What can I do?

17 years, 6 months

[linux-audio-user] [ANN] Aldrin 0.2 (Blowfly)

by Leonard "paniq" Ritter

Aldrin (formerly known as Mute) is an extensible modular sequencer/tracker, designed to be 1:1 compatible to Jeskola Buzz, currently in development stage. It is primarily being developed for the Linux operating system, but also builds and runs on Windows. If you want to help with testing or building packages, or if you just want to hang around, visit #aldrin on irc.freenode.net http://www.leonard-ritter.com/announcement_aldrin_0_2_blowfly -- -- leonard "paniq" ritter -- http://www.mjoo.org -- http://www.paniq.org

17 years, 6 months

[linux-audio-user] Re: ANN: bristol 0.9.5-60

by Steven Walker

On Mon, 2006-09-18 at 16:27 -0400, linux-audio-user-request(a)music.columbia.edu wrote: > ANN: bristol 0.9.5-60 This looks interesting. It built OK, but when I run it, the GUI image never appears - just an empty window. Here are the messages: # ./startBristol -b3 spawning midi thread parent going into idle loop connected to :0.0 (81442f0) display is 1024 by 768 pixels Window is w 1024, h 768, d 24, 0 0 0 Using DirectColor display masks are ff0000 ff0000 ff0000 midi sequencer Opened listening control socket: 5028 Client ID = 128 Queue ID = 0 Device name did not parse, defaults 128.0 Initialise the hammondB3 link to bristol: 814a7a8 hostname is localhost, bristol port is 5028 Connected to the bristol control socket: 5 bristolengine already active Accepted connection from 0 (3) onto 2 (5) created 16 voices: allocated 16 to synth engine MIDI channel 0 spawning audio thread bristolAudioOpen(plughw:0,0, 44100, 256, 1200008) audioOpen(b7f9a200, 0, 1024): plughw:0,0 opening device plughw:0,0, flags 0000000d open playback on plughw:0,0, pre 8 Could not configure playback period size period size is -1208655184 Problem opening audio device plughw:0,0, exiting audio thread Rescheduled thread: 95 initialising one hammond sound Null palette Terminate MIDI signalling

17 years, 6 months

[linux-audio-user] [hit] new tune

by Robert Jonsson

Hi, "I know what I'm doing now, gonna write a pop song played everywhere." \/ http://spamatica.se/music/spamatica/default/spamatica_-_one_hit_wonder1.2.o… /gwb aka One Hit Wonder -- http://spamatica.se/musicsite/

17 years, 6 months

[linux-audio-user] Can't mount usb MP4 player

by robert lazarski

Hi all, I'm trying to mount this MP4 player: http://szxc.en.alibaba.com/product/50111824/50983432/MP3_MP4_Players/MP4_pl… Doing 'cat /proc/bus/usb/devices' shows no such device, and I get nothing in /var/log/messages . The dsiplay does not light up. My /etc/fstab entry, which works fine with my pen drive, is: usbfs /proc/bus/usb usbfs noauto 0 0 I'm running the stock suse 9.3 kernel, 2.6.11 . Any ideas ? Robert

17 years, 6 months

Re: [linux-audio-user] .asoundrc for dummies

by Mathias Friman

Lee Revell wrote: > Normal users should never have to understand .asoundrc syntax or use > an .asoundrc at all. The best advice you can give is to forget there is > any such thing as an .asoundrc, and consider it an ALSA bug if their > soundcard does not do the right thing without one. I for one couldn't get ALSA to work with an USB-mic for recording and my regular onboard sound card for playback without one. I still do not fully understand what that little file does exactly, but overrides the default setting, setting an asym-type and defines playback and capture PCMs. I still do not know why slave.pcm is defined the way it is defined and not within {} brackets as it says in the alsa wiki. I would NEVER have been able to figure out the syntax all by myself. :) I know that back in the days, when men were men and wrote their own device drivers, this was not a very big problem. But now are the days of the point- and-click-user that does not aspire to grow a unix-beard just to get their sound system to work, and I would like to help them understand just a tiny bit of the general picture, not going too deep into the realms of ALSA developers. ;) The first line in what I've written so far about the .asoundrc is (translated): "You generally do not need a /etc/asound.conf or .asoundrc file to get things working correctly." So, that advice is already given, as I took it from the alsa-wiki. There are plenty of resources doing fairly advanced things with .asoundrc on several sites around the web, but nothing that bridges the leap between utter ignorance and .. well, whatever you guys call yourselves. ;) But anyway, thanks for the answer, I'll just have to dig in and grow a beard. :) Regards, Mathias

17 years, 6 months

[linux-audio-user] hello gentoo? speed up please...

by Aaron Trumm

hello all - got a question - I've only recently been stopping and taking a look at my studio computer's performance and in the almost year since I change from Red Hat 9 to gentoo, it's been more solid on some things, but I notice a huge latency difference - ie: I have to run Jack at -p 8192 to get anything done in Ardour Anybody have any tips on what to look at to tweak it? Seems like it should do better than that... I didn't see it as a problem until in the last few days I started playing with playing softsynths live directly into Ardour - you've gotta be running at -p 1024 or there's a latency that screws up your playing - at 8192 it's a downright 8th note delay... Here's some vitals that I can think of: OS: gentoo 2.6.6-rc1 kernel (alsa built in) jack: 0.99.0 ardour: beta28 jack command line: jackd -R -d alsa -d hw:0 -r 48000 -p 8192 <------- (or whatever) harddrive: multicount on io support: 32 bit unmaskirq on use dma on keepsettings off readonly off readahead on chip: 2ghz amd (I THINK - not at computer now) ram: 512MB thanks for any ideas! :) --------------------- Aaron Trumm www.nquit.com -----------------------

17 years, 6 months

[linux-audio-user] Re: flash 9 beta

by Kjetil S. Matheussen

Lee Revell: > Subject: Re: [linux-audio-user] flash 9 beta > To: A list for linux audio users <linux-audio-user(a)music.columbia.edu> > Message-ID: <1161275544.15860.201.camel@mindpipe> > Content-Type: text/plain > > On Thu, 2006-10-19 at 11:45 -0400, Paul Winkler wrote: >> finally! >> http://labs.adobe.com/technologies/flashplayer9/ >> seems to work here with firefox 1.5.0.7. >> >> *much* better sound synchronization - i can finally watch stuff on >> youtube without screaming in frustration. >> > > ARRRGGGGGGHHHHHHHH!!!!!!! On my 600Mhz machine (which plays big divx > DVD and HDTV rips perfectly in full screen mode) I get at MOST 1 FPS. > Most YouTube videos never play - the red bar fills up, I see the first > frame, and can fast forward and rewind, but the video behaves as if it's > always paused. > > > Guess I'll have to go back to Windows if I want to use this new & > improved proprietary multimedia Internet... sigh... it was fun while it > lasted. > > Lee > You could try to use vmware. Youtube seems to play perfectly through vmware on my machine (even in fullscreen), but thats an xp2800 though. (And heres an experimental jack-wrapper for vmware: http://www.notam02.no/~kjetism/vmwaredsp-1.3jack.tar.gz )

17 years, 6 months

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Linux-audio-user October 2006