Linux-audio-user January 2003

linux-audio-user@lists.linuxaudio.org

119 participants
142 discussions

[linux-audio-user] lame and low sample-rate mp3's

by Marco Scoffier

I am writing here because my problem involves many tools. I have been trying to make extremely compact mp3's for download. $lame PO_audio.wav -m m -b 8 PO_audio-low.mp3 LAME version 3.93 MMX (http://www.mp3dev.org/) CPU features: i387, MMX (ASM used), SIMD Autoconverting from stereo to mono. Setting encoding to mono mode. Resampling: input 32 kHz output 8 kHz Using polyphase lowpass filter, transition band: 2742 Hz - 2839 Hz Encoding PO_audio_kino.wav.wav to PO_audio-low.mp3 Encoding as 8 kHz 8 kbps single-ch MPEG-2.5 Layer III (16x) qval=2 Frame | CPU time/estim | REAL time/estim | play/CPU | ETA 1038/1040 (100%)| 0:05/ 0:05| 0:05/ 0:05| 13.322x| 0:00 average: 8.0 kbps Everything looks right except that when I play the resulting file in xmms or mgp123 it plays much too fast. Could the headers on the mp3 be wrong? how do I check? they show up correctly in xmms and mpg123. mpg123 PO_audio-low.mp3 ( ... ) Playing MPEG stream from PO_audio-low.mp3 ... MPEG 2.5 layer III, 16 kbit/s, 11025 Hz mono I know I used to play lower than CD quality sample rates. Does anyone have an idea what is going on? I have tried differing combinations of ecasound and lame with combinations of -sr and -rate switches, to often similar results. I am using the alsa drives from cvs for my audiofile 2496, Thanks, --Marco

21 years, 3 months

[linux-audio-user] ecamegapedal 0.4.0 released

by Kai Vehmanen

1. A short summary of changes Sliders for parameter control and text inputs for lower and upper bounds have been added as well as support for LADSPA-1.1 and ecasound effect parameter hints. There has been some user interface improvements and a native JACK support has been added. Updated to use the new ecasound-2.2 libraries. --- 2. What is ecamegapedal? Ecamegapedal is a real-time effect processor software with a graphical user interface for controlling the effect parameters. It is meant to be used as a virtual guitar-fx or studio effect box. In addition to real-time operation, ecamegapedal also supports reading from and writing to audio files. All audio object and effect plugin types provided by the ecasound libraries are supported. This includes ALSA, JACK, OSS, aRts, over 20 file formats, over 30 effect types, LADSPA plugins and multi-operator effect presets. Ecamegapedal's implementation is based on ecasound and Qt libraries. Ecamegapedal is licensed under the GPL. --- 3. Changes since the last stable release * Added native JACK support. If compiled with JACK support enabled, ecamegapedal will upon startup fetch the current engine parameters from the JACK server, and initialize the ecamegapedal configuration to work with JACK. In practice this means that you don't have to manually set the buffersize and sample rate parameters to use ecamegapedal with JACK. * Support for LADSPA-1.1 and ecasound effect parameter hints. * Text inputs for overriding default upper and lower bounds for parameter values. * Sliders for controlling parameter values. * Pixmaps for transport control buttons. * Takes advantage of the newly released ecasound 2.2.0 libraries (does not work with older ecasound releases). * Should work with all released Qt2 and Qt3 versions. Tested with qt-2.3.2, qt-3.0.5 and qt-3.1.1. --- 4. Contributors Patches Kai Vehmanen Arto Hamara Bug Hunting Jaakko Prattala Justin Rosander Junichi Uekawa Feature proposals Dan Lyons --- 5. Links and files Web sites: http://www.eca.cx http://www.eca.cx/ecamegapedal http://jackit.sourceforge.net Source and binary packages: http://ecasound.seul.org/download http://ecasound.seul.org/download/ecamegapedal-0.4.0.tar.gz -- http://www.eca.cx Audio software for Linux!

21 years, 3 months

[linux-audio-user] the continuing story of mandrake 9.0.....

by iriXx

hi all thanks for the advice patrick actually im going to upgrade to cvs will give it a go shortly and let you know the outcome have to go the back route around doing it as KDE depends on the alsa rpms.. i did a lovely job of killing X last night by messing with those... so i'm going to simply tar up the modules and install cvs... i presume a few spare extra alsa libs around the place shouldnt do any harm... i hope! thanx m~ -- iriXx www.iriXx.org copyleft: creativity, technology and freedom? info(a)copyleftmedia.org.uk www.copyleftmedia.org.uk _ ( ) ascii ribbon against html email X / \ cat /dev/sda1 > /dev/dsp *** stopping make sense ***

21 years, 3 months

[linux-audio-user] RME9652 and Stereo

by Phil Moors

alsa-0.9.0rc6 RH7.3 kernel 2.4.19 with Andrew Morton's low latency patches ASUS A7M266 Mobo w/Duron 750 single proc I have compiled, installed and loaded the ALSA rme9652 driver. It's compiled without OSS. Using arecord/aplay, I can only record and playback files in mono format. Stereo is eluding me. Pardon the ascii art, monospace font required. My configuration is: LineIn1 LineIn2 Mic ElecBass | | | | main out-----Mackie 1202-VLZpro -----LineIn 5/6 L/R | | | | | input--- ---output L/R | | L/R ART DI/O 2 channel 24bit AD/DA converter | | S/PDIF---- ----S/PDIF RCA out RCA in | | | | S/PDIF S/PDIF RCA in RCA out | | -----Hammerfall--------------------- Also, I can only arecord/aplay using the plug layer. All attempts to use hw fail with: aplay: set_params:781: Access type not available The consumer card is card0 (cs46xx, Hercules Game Theater). My .asoundrc is: pcm.Crystal { type hw card 0 } ctl.Crystal { type hw card 0 } pcm.RME9652 { type hw card 1 } ctl.RME9652 { type hw card 1 } I used alsactl store/restore to enable the S/PDIF on the Hammerfall. It works fine for mono recording and playback. The card is set to AutoSync and I can see sample rate changes made on the ART converter picked up in the Hammerfall. Thanks for any help, Phil

21 years, 3 months

[linux-audio-user] [ANN] JACK TimeMachine 0.0.2

by Steve Harris

I've fixed some build issues and theoretically made it slightly more efficient. If you managed to build 0.0.1 theres no real point in you upgrading. Theres also now a webpage of sorts, with a screenshot ;) http://plugin.org.uk/timemachine/ - Steve

21 years, 3 months

[linux-audio-user] The missing link

by linuxmedia4＠netscape.net

Greetings, I always give my best effort before bothering anyone on this list. I just can't find the missing peice. Here's the situation: I create sequence tracks in jazz. Then I record live tracks in ecasound while the midi file plays via timidiy. The problem is that jazz plays from the sound card and timidity can only play .pat files. I create a lush sounding recording in jazz and when I play it with timidity, it sounds weak. Appeartenly, ecasound only supports playing midi files via timidiy. And timidiy can't access the sounds on the sound card. I've been looking all over for several solutions: (1) A midi to wav converter that creates a wav that sounds like what I created in jazz (via the sound card). Then I can just play the wav in ecasound while I record my live tracks along with it. (Timidity will covert to wav, but it's the .pat sounds). I tried using vsound, but it fails with every midi player I've tried. (2) I keep hearing about alsa "capturing" sound. I can't find any documentation on what and how it "captures". Can I press play in a midi player and the sound can be recorded to wav? If so, how? (3) Is there a program that converts .sf2 to .pat. If so, then when I play midi files with timidity, they will sound like what I created with jazz. Thanks in advance... Rocco __________________________________________________________________ The NEW Netscape 7.0 browser is now available. Upgrade now! http://channels.netscape.com/ns/browsers/download.jsp Get your own FREE, personal Netscape Mail account today at http://webmail.netscape.com/

21 years, 3 months

Re: [linux-audio-user] Linux in Sound on Sound

by nick

> For those of you who read Sound on Sound magazine, there is an introductory > feature on Linux and music that I wrote in the February issue. Richard Bown > and Steve Harris were interviewed for the piece, and there are also mentions > of Ardour and Audacity. The article is available on line, but to subscribers > only for the time being. Nice Article! How did you manage to get SOS to run a Linux article? I was wondering if it would ever happen ;-) Maybe one day there'll even be a "Linux notes" section at the back alongside mac & pc. ah, i can dream :-) -nick __________________________________________________ Do You Yahoo!? Everything you'll ever need on one web page from News and Sport to Email and Music Charts http://uk.my.yahoo.com

21 years, 3 months

[linux-audio-user] Re: seeking a software sampler for Linux

by Florian Berger

Hi there, > From: Emiliano Grilli <emillo(a)libero.it> > > * iiwusynth (http://www.hanappe.org/iiwusynth.html) > a soundfont-enabled sampler that is already included in MusE > > * timidity (http://www.onicos.com/staff/iz/timidity/), > that can be started in ALSA server mode Thank you! Looks like a good thing to start with. > From: Vincent Touquet <vincent.touquet(a)pandora.be> > > This project is your biggest hope: > http://linuxsampler.sourceforge.net/ Just subscribed to it´s list ;-). It is indeed. After having used HALion for about half a year, I started do dislike it a lot - and you can´t email the developers "Hey guys, how about fixing this and doing that in a different way"... ;-))) > Also, check this mailinglist's archives, > this question has come up before ... I did so before I wrote, but could not find a clear answer. But now I have something to get going. Thanks again, Florian Berger, Leipzig, Germany -- o GnuPG Public Key: http://home.arcor.de/florib/florib_key.txt Key fingerprint= EE0B B442 7127 24D4 4404 10D8 94D1 4419 8E89 8AF6

21 years, 3 months

[linux-audio-user] seeking a software sampler for Linux

by Florian Berger

Hello to all, I´m searching for some kind of a HALion replacement on Linux. Just a simple engine that responses to MIDI Note on/off and Main Volume per channel, and that can be triggered using some sequencer (as MUSE or Rosegarden). Any hint would be greatly appreciated. Thank you, Florian Berger, Leipzig, Germany

21 years, 3 months

[linux-audio-user] [OT] Linux Music & Sound Software site updated

by Dave Phillips

Greetings: As of January 19 2003 the Linux Music & Sound Applications pages have been updated. The site may be reached here: http://sound.condorow.net (USA) Here: http://www.linuxsound.at (Europe) And here: http://www.ymo.org/linuxsound/ (Japan) The Japanese site will not update until January 20. Enjoy ! 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, 3 months

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Linux-audio-user January 2003