Linux-audio-user September 2006

linux-audio-user@lists.linuxaudio.org

165 participants
155 discussions

by Atte André Jensen

Hi My singing is not at good as it could be, but I'd still like to do some demo tracks. Is there anything out there that will autotune my voice, maybe in the form of a ladspa plugin, for use in ardour? Should mention that I've never used anything of this kind before and all my recent recording experience is under linux with ardour... -- peace, love & harmony Atte http://www.atte.dk | quartet: http://www.anagrammer.dk | compositions: http://www.atte.dk/compositions

18 years, 3 months

[linux-audio-user] Re: sound recording application

by Kjetil Svalastog Matheussen

Juhana Sadeharju: >>rec 4hourrecording.wav & sleep 14400; killall -INTR rec > >Come on guys! > >We need better than that. And the suggestion to use of ardour >remotely was a good start. Use jack_capture. Just change the fgets call into a sleep call. jack_capture should be just as safe as ardour for recording. >And what if disk comes full? How your simple recorder can switch >the file? And what is the file size of the largest file? E.g., "ls" >command in my Linux stops listing files larger than ~2 GB. If the disk becomes full, the recording is stopped and the recorded file contains all data recorded upto that point.

18 years, 3 months

Re: [linux-audio-user] Re: sound recording application

by Phil Mendelsohn

linux-audio-user-request(a)music.columbia.edu said: > From: Paul Davis <paul(a)linuxaudiosystems.com> > "no audio interface i have ever heard of does dithering." --- > From: Ismael Valladolid Torres <ivalladolidt(a)terra.es> > > "BTW dithering should be considered a mastering trick. I humblely > suggest forgetting about dithering except only when mastering." --- I'll pick a nit here: Dithering happens at the A/D converter. I've never heard of an interface that didn't have it, but that's talking about it at the circuit (sub IC) level. It is in every audio interface you can find outside of a museum, I'd say. *REDITHERING* is what happens in mastering -- you work at higher resolution than your delivery format (16-bit CD, usually), and then dither back at the end. Phil M -- "To misattribute a quote is unforgiveable." --Anonymous

18 years, 3 months

[linux-audio-user] [ANN] QLoud v.0.16 - no CVS-trees dependency now

by Andrew Gaydenko

QLoud is a tool to measure loudspeaker frequency response. Find it here: http://gaydenko.com/qloud/ Uwe has released Qwt v.5.0.0rc0. As a result, QLoud doesn't depend on any CVS tree now. v.0.16 is out - INSTALL is changed to be in accordance with Qwt development. Also, min. smoothing was reduced to 1/1024 :-) If you already use the app, you can stay with v.0.15 (no bugs were found). If you have rejected the app because of Qwt CVS-tree dependency - try it now :-) Andrew

18 years, 3 months

[linux-audio-user] Jack Realtime - delay of xxx usecs exceeds estimated spare time of yyy restart ...

by Mathias Friman

Hi List! I have a bit of a problem with running Jack in Realtime under Ubuntu Dapper. I've put the appropriate lines in /etc/security/limits.conf, that is: @audio - rtprio 99 @audio - memlock 250000 @audio - nice -10 I'm a member of the audio-group and have a line as follows in my fstab none /tmp/jack tmpfs defaults 0 0 but i keep getting these lines from Jack: delay of xxx usecs exceeds estimated spare time of yyy restart ... repeat ad infinitum. My soundcard (an old crappy AC'97 compatible) shares IRQ 11 with eth0 and ath0 (not running). I got a tip to turn off ACPI, but that didn't help. What does this delay mean, and how could one avoid it? regards, Mathias

18 years, 3 months

[linux-audio-user] Re: sound recording application

by Juhana Sadeharju

>rec 4hourrecording.wav & sleep 14400; killall -INTR rec Come on guys! We need better than that. And the suggestion to use of ardour remotely was a good start. I often need a recorder which records continuously to a 20 minutes file. When I come from a coffee and radio finishes playing a good song, I may just press a button and recording starts at 20 minutes past. Nothing missed. The same for TV/video. And what if disk comes full? How your simple recorder can switch the file? And what is the file size of the largest file? E.g., "ls" command in my Linux stops listing files larger than ~2 GB. Ardour as a recorder wonders me: does Ardour add a dither noise to the recording? The audio card may already add the dither and second dither only adds to the noise. Juhana -- http://music.columbia.edu/mailman/listinfo/linux-graphics-dev for developers of open source graphics software

18 years, 3 months

[linux-audio-user] [songs] songs /songs/ </songs>

by Robert Jonsson

Hey folks, Been a while since I posted any songs. I was under the impression that I had nothing created, looks like I did anyway ;)... Anyway, here goes, diverse to the point of total lack of focus. Judge for yourself. http://spamatica.se/music/spamatica/default/spamatica_-_bloodsimple1.1.ogg http://spamatica.se/music/spamatica/default/spamatica_-_preludium_to_armage… http://spamatica.se/music/spamatica/default/spamatica_-_i_gotta_hand_it_to_… http://spamatica.se/music/spamatica/default/spamatica_-_ddb3.ogg http://spamatica.se/music/spamatica/default/spamatica_-_one_minute_jazz.ogg http://spamatica.se/music/spamatica/default/spamatica_-_xper1.5.ogg Created in reverse cronological order over a period of about half a year using mainly: linux, muse, soundfonts, ladspa plugins, more ladspa plugins, some gigs pod's, guitars, microphones, deformed ears and total lack of sense. For the genreholics out there I would put them in the following categories, top to bottom: spam-metal/ambient/blues/mono-metal/jazz/bluesfusion For more info about the songs and also older material see the site: http://spamatica.se/musicsite/ Regards, Robert -- http://spamatica.se/musicsite/

18 years, 3 months

[linux-audio-user] [OT] Happy Free Software meeting

by Marcos Guglielmetti

18 years, 3 months

[linux-audio-user] Video and sound

by Sönke Hahn

Hi! I want to create sounds for a film a friend of mine is doing. So i wonder, if there is a video player that can be controlled via jack transport. I think, that would be the easiest way, cause i could just use jack capable sound apps and put the sound and the video together afterwards. Thanks, Soenke

18 years, 3 months

[linux-audio-user] noacpi, no sound

by Atte André Jensen

Hi I have glitches in my audio every 30-60 secs or so, so I thought I'd try disabling acpi and see what happens. I added this to my /boot/grub/menu.lst: title Debian GNU/Linux, kernel 2.6.15-1000hz noacpi root (hd0,0) kernel /boot/vmlinuz-2.6.15-1000hz root=/dev/hda1 ro pci=noacpi initrd /boot/initrd.img-2.6.15-1000hz savedefault boot It's an exact copy (except the name and the pci=noacpi) of my working entry. After booting using this, jack (I use qjackctl) won't start, this is what I see in the messages window: 10:37:49.720 Startup script... 10:37:49.721 artsshell -q terminate qstring_to_xtp result code -2 can't create mcop directory Creating link /home/atte/.kde/socket-ajstrup. 10:37:49.967 Startup script terminated with exit status=256. 10:37:49.967 JACK is starting... 10:37:49.967 jackd -R -P70 -dalsa -dhw:0 -r48000 -p256 -n2 -S 10:37:49.978 JACK was started with PID=11427 (0x2ca3). cannot write to jackstart sync pipe 4 (Bad file descriptor) jackd: wait for startup process exit failed jackd 0.101.1 Copyright 2001-2005 Paul Davis and others. jackd comes with ABSOLUTELY NO WARRANTY This is free software, and you are welcome to redistribute it under certain conditions; see the file COPYING for details JACK compiled with System V SHM support. loading driver .. apparent rate = 48000 creating alsa driver ... hw:0|hw:0|256|2|48000|0|0|nomon|swmeter|-|16bit control device hw:0 ALSA: Cannot open PCM device alsa_pcm for playback. Falling back to capture-only mode cannot load driver module alsa 10:37:50.006 JACK was stopped successfully. qstring_to_xtp result code -2 10:37:52.129 Could not connect to JACK server as client. Please check the messages window for more info. qstring_to_xtp result code -2 This is my .jackdrc: atte@ajstrup:~$ cat .jackdrc jackd -R -P70 -dalsa -dhw:0 -r48000 -p256 -n2 -S Moreover xmms fails with: ** WARNING **: oss_open(): Failed to open audio device (/dev/dsp): No such file or directory So something seems all messed up with my sound card (at least it doesn't seem to be available), although the modules does get loaded: atte@ajstrup:~$ lsmod | grep snd snd_seq_virmidi 7936 0 snd_seq_dummy 3972 0 snd_seq_oss 35968 0 snd_seq_midi 9504 0 snd_seq_midi_event 7552 3 snd_seq_virmidi,snd_seq_oss,snd_seq_midi snd_seq 55056 10 snd_seq_virmidi,snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event snd_intel8x0m 18316 0 snd_pcm_oss 55072 0 snd_mixer_oss 19968 1 snd_pcm_oss snd_intel8x0 34588 0 snd_ac97_codec 97440 2 snd_intel8x0m,snd_intel8x0 snd_ac97_bus 2432 1 snd_ac97_codec snd_usb_audio 79168 0 snd_usb_lib 17152 1 snd_usb_audio snd_pcm 93704 5 snd_intel8x0m,snd_pcm_oss,snd_intel8x0,snd_ac97_codec,snd_usb_audio snd_timer 26244 2 snd_seq,snd_pcm snd_page_alloc 11144 3 snd_intel8x0m,snd_intel8x0,snd_pcm snd_rawmidi 26400 3 snd_seq_virmidi,snd_seq_midi,snd_usb_lib snd_seq_device 8972 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq,snd_rawmidi snd_hwdep 9760 1 snd_usb_audio snd 57188 15 snd_seq_virmidi,snd_seq_oss,snd_seq,snd_intel8x0m,snd_pcm_oss,snd_mixer_oss,snd_intel8x0,snd_ac97_codec,snd_usb_audio,snd_pcm,snd_timer,snd_rawmidi,snd_seq_device,snd_hwdep soundcore 10592 1 snd usbcore 134916 6 snd_usb_audio,snd_usb_lib,usbhid,uhci_hcd,ehci_hcd Any idea what's wrong? -- peace, love & harmony Atte http://www.atte.dk | quartet: http://www.anagrammer.dk | compositions: http://www.atte.dk/compositions

18 years, 3 months

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Linux-audio-user September 2006