Linux-audio-user June 2003

linux-audio-user@lists.linuxaudio.org

120 participants
118 discussions

by juto aviten

Dear friends, I try to use XMMS as a mp3 / streaming mixer to mix different live audio streaming... but my problems is when i want to fade out or fade in one of the source XMMS fade all the player. So i know i could use many XMMS player at the same time, but do you know if we could mix it live? Is there a plugin for that or a special option? or do you know an app in the same idea as XMMS but where we could mix the different live audio streaming source? Thanks a lot for you help best juto

21 years, 5 months

[linux-audio-user] mastering : multiband compressor

by Allan Klinbail

HI All While we're on the subject of mastering .. I can't seem to find a multiband compressor anywhere... (i.e. ladspa plugin) AM I blind or is there not one yet.. Are there easy tool sto make plugins.. or do I simply need to setup a chain.. THe other way this could work is if there is a parametric EQ plugin that has separate outs for each frequency band. Without the plugin all I can see is a very messy option of copying a track three (or more) times EQ-ing these so the represent three distinct (slightly crossing bandwidths) and then running them all through a compressor... or (this is pretty much the same) usign a sidechain from a compressor plugin to route it through an EQ plugin. If there isn't one can anyone suggest an easy tool from which to build a multiband compressor in? cheers ALlan -- Allan Klinbail <allank(a)labyrinth.net.au>

21 years, 5 months

[linux-audio-user] [OT] you might already have a hardware synth in your office

by Frank Barknecht

Hi, here's someone making music with a dot matrix printer: http://qotile.net/dotmatrix.html I wonder if ALSA supports it as well? ciao -- Frank Barknecht _ ______footils.org__

21 years, 5 months

[linux-audio-user] optimal jack settings for ice1712

by Allan Klinbail

Hi While playing around with ardour.. I notice I'm getting quite a lot of xruns. I have setup jack with tmpdir=/mnt/ramfs options.. At this stage I am just using jackstart -d alsa -d ice1712 I also am using a newer P4 processor and am wondering how to turn off HyperThreading options. As recent discussion indicates this can add to xruns. cheers -- Allan Klinbail <allank(a)labyrinth.net.au>

21 years, 5 months

[linux-audio-user] JACK 0.72.4 released

by Taybin

JACK 0.72.4 JACK is a low-latency audio server, written primarily for the GNU/Linux operating system. It can connect a number of different applications to an audio device, as well as allowing them to share audio between themselves. Its clients can run in their own processes (ie. as normal applications), or can they can run within the JACK server (ie. as a "plugin"). JACK is different from other audio server efforts in that it has been designed from the ground up to be suitable for professional audio work. This means that it focuses on two key areas: synchronous execution of all clients, and low latency operation. **CHANGES** * Updated documentation * Bug fixes * MacOSX port. Includes a ProjectBuilder file to help compilation. Requires PortAudio to be installed. * Ringbuffer example files added * New example client: simple transport master to demonstrate Jack's transport API. Requires GNU readline to compile. * Removed software monitoring and improved hardware monitoring semantics. Taybin Rutkin

21 years, 5 months

[linux-audio-user] saving mixer settings on Mandrake 9.1

by Allan Klinbail

Hi I'm getting annoyed that every time I restart the machine (or possibly just ALSA) I need to reconfigure my mixer settings. (especially for my delta 66 as I like to have the adc, dac settings setup so that the meters on the computer match those of my mixing desk and hardware compressors.. unity gain should be the same everywhere) I'm sure this is just a matter of having the right SysV init script. My confusion is that Mandrake has 3 scripts for sound.. it has alsa, alsasound and sound. Does anyone know which is the right one to be using to ensure that my mixer settings are saved? cheers -- Allan Klinbail <allank(a)labyrinth.net.au>

21 years, 5 months

[linux-audio-user] alsa dmix question(s)

by Dave Phillips

Greetings: I'd like to employ dmix on my laptop but I need to know a few things before doing so. The first thing concerns my assumptions: Am I correct in understanding that dmix will perform as a "virtual hardware mixer" a la the SBLive on my desktop machine ? My laptop is an HP Omnibook 4150, it's very nice but its sound chip is a CS4232 and is not capable of hardware mixing like the SBLive. It would be nice if dmix would let me play with more than one audio app at a time. If my first assumption is correct, how do I invoke and use dmix ? Should it be in a startup file somewhere or should it be launched from the command-line ? Given that my laptop's CPU is only a PII 366 what kind of performance can I expect ? Finally, how do I control the volume for each app playing, i.e., is there a mixer that recognizes dmix ? I'm curious as to how people are using dmix and what are their opinions about it, so fire away... Best regards, == Dave Phillips The Book Of Linux Music & Sound at http://www.nostarch.com/lms.htm The Linux Soundapps Site at http://linux-sound.org

21 years, 5 months

Re: [linux-audio-user] Quattro: part two of mail :-/

by Denis de Leeuw Duarte

Well, in that respect, can you clear up something for me about your .asoundrc file? I am not that familiar with ALSA's internals, so perhaps this is a silly question, but here goes.. The .asoundrc comments say that quattro1 is pcm0, but what exactly is pcm0? Is that outputs 1 and 2 viewed as a stereo card? I also don't really understand what all the other things are for, like quattro, q4, and q4b or how I could do practical things like record or play on one specific in/ouptut. Would you consider rewriting your comments in the file so they are more understandable to those not familiar with the intricacies of asoundrc and low level alsa stuff? It would be very helpful. Some practical hints along these lines would be great: "quattro1 is the physical input 1 and 2 and output 1 and 2 working as one stereo device. It has a maximum samplerate of foo." "To record or play a mono channel on a specific input/output using (for example) arecord, do 'bar'" ..and something similar to explain the differences between the q4, q4b and quattro entries. It would be great if you would want to do this, because it would save people the time of having to grok the whole .asoundrc syntax themselves. Thank you for writing the thing in the first place by the way!! :-) >From: Patrick Shirkey <pshirkey(a)boosthardware.com> >Reply-To: linux-audio-user(a)music.columbia.edu >To: linux-audio-user(a)music.columbia.edu >Subject: Re: [linux-audio-user] Quattro: part two of mail :-/ >Date: Fri, 13 Jun 2003 19:14:28 +0900 > >Denis de Leeuw Duarte wrote: >>..sorry, I just sent half an e-mail by accident. >> >>I was about to describe how I tried recording with my quattro: >> >> arecord -d quattro1 -r 44100 -c 1 -f S16_LE test.wav >> arecord -d quattro1 -r 48000 -c 1 -f S16_LE test.wav >> arecord -d quattro1 -r 48000 -c 2 -f S24_LE test.wav >> >>..and a few others. The sound is very much like it was sampled at a very >>low samplerate and/or bitrate. Can someone paste me a known good arecord >>line for the quattro, or does anyone know about this problem? >> > >I've been unable to record throught e inputs 1/2 for a couple of months >now. 3,4 work perfectly though. > > >-- >Patrick Shirkey - Boost Hardware Ltd. >Http://www.boosthardware.com >Http://www.djcj.org - The Linux Audio Users guide >======================================== > >Being on stage with the band in front of crowds shouting, "Get off! No! We >want normal music!", I think that was more like acting than anything I've >ever done. > >Goldie, 8 Nov, 2002 >The Scotsman > _________________________________________________________________ Add photos to your e-mail with MSN 8. Get 2 months FREE*. http://join.msn.com/?page=features/featuredemail

21 years, 5 months

[linux-audio-user] Quattro: part two of mail :-/

by Denis de Leeuw Duarte

..sorry, I just sent half an e-mail by accident. I was about to describe how I tried recording with my quattro: arecord -d quattro1 -r 44100 -c 1 -f S16_LE test.wav arecord -d quattro1 -r 48000 -c 1 -f S16_LE test.wav arecord -d quattro1 -r 48000 -c 2 -f S24_LE test.wav ..and a few others. The sound is very much like it was sampled at a very low samplerate and/or bitrate. Can someone paste me a known good arecord line for the quattro, or does anyone know about this problem? Thanks in advance, Denis de Leeuw Duarte _________________________________________________________________ MSN 8 with e-mail virus protection service: 2 months FREE* http://join.msn.com/?page=features/virus

21 years, 5 months

[linux-audio-user] Quattro records noisy

by Denis de Leeuw Duarte

Hello, I've been successfully playing sound through my quattro for a short while, but today when I tried to record, I found out that is is very noisy. It sounds a bit as if the sound is sampled at too low a bitrate. I can't imagine this is actually the case, so I'm probably doing something silly. Here's what I did: - I have Patrick Shirkey's .asoundrc. - I stuck a (good) SM47 mic into input number one. - I recorded like this: arecord arecord -d quattro1 -r 48000 -c 2 -f S24_LE test.wav arecoarecord -d quattro1 -r 48000 -c 2 -f S24_LE test.wav rd -d quattro1 -r 48000 -c 2 -f S24_LE test.wav _________________________________________________________________ MSN 8 helps eliminate e-mail viruses. Get 2 months FREE*. http://join.msn.com/?page=features/virus

21 years, 5 months

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Linux-audio-user June 2003