Linux-audio-dev

linux-audio-dev@lists.linuxaudio.org

4 participants
7502 discussions

by hermann

Hi Today I receive a message from Bernardo Barros, he have ported the core dsp code from the Guitarix Project to make SuperCollider plugins out of each Guitarix effect/amp module. May it is of some interest for SuperCollider users here. https://github.com/smoge/gxplugins regards hermann

14 years, 5 months

[LAA] [ANN] guitarix update release gx_head-0.13.0

by hermann

gx_head is a simple guitar mono tube amplifier simulation based on the work we have done in the guitarix project. gx_head provide 3 tube models (12AX7, 12AU7, 6V6) and 8 different tonestack models(Bassman, Twin Reverb, Princeton, JCM-800, JCM-2000, M-Lead, M2199, AC30), so you can simply create the amp-model to your needs. gx_head comes with a bunch of in-build effects, like distortion, crybaby, autowah, phaser, flanger, echo, delay, . . . The effects could ordered in two Racks, on for the mono effects, witch could be load for pre or post processing, and one for the stereo effects, witch could only used in post processing. Effects are loadable over the menu, a pop-up menu in the racks, or a plugin bar. Settings could saved/load as presets. gx_head comes with some factory settings provided by guitarix/gx_head friends "funkmuscle" and "zettberlin", thanks therefore. All UI controllers could connected over jack midi via MIDI learn with your external MIDI controllers. gx_head is ready for language support via gettext() and comes thanks to Pablo Fernández with Spanish , and thanks to Ivan Tarozzi with Italian translation. The style file gx3-dezert is contributed by zettberlin, thanks Hartmut new features in short: * add mix tubes * add post amp * add noise gate * add Italian translation by Ivan Tarozzi * add desert skin by zettberlin * add factory settings by zettberlin have fun _________________________________________________________________________ gx_head is licensed under the GPL. screen-shots and sound examples: http://sourceforge.net/apps/wordpress/guitarix/ direct download: http://sourceforge.net/projects/guitarix/files/gx_head/gx_head-0.13.0.tar.b… download: http://sourceforge.net/projects/guitarix/ please report bugs and suggestions in our forum here: http://sourceforge.net/apps/phpbb/guitarix/ ________________________________________________________________________ For extra Impulse Responses, gx_head uses the zita-convolver library, and, for resampling we use zita-resampler, both written by Fons Adriaensen. http://www.kokkinizita.net/linuxaudio/index.html We use the marvellous faust compiler to build the amp and effects and will say thanks to : Julius Smith http://ccrma.stanford.edu/realsimple/faust/ : Albert Graef http://q-lang.sourceforge.net/examples.html#Faust : Yann Orlary http://faust.grame.fr/ ________________________________________________________________________ For faust users : All used Faust dsp files are included in /gx_head/src/faust, the resulting .cc files are in /gx_head/src/faust-generated The tools we use to convert (post-processing and plot) the resulting faust cpp files to the needed include format, stay in the /gx_head/tools directory. ________________________________________________________________________ regards guitarix development team

14 years, 5 months

jack plugin

by kallipygos＠inbox.lv

Hi Developers. I have more as one sound players on my system mplayer, vlc, qmmp ... Each of em uses jack output , for example 2 independent instances of mplayer mplayer -ao jack  -srate 16000 '/home/alf/mp3/mettwoch-de-doof-nuss.mpa.mp2' mplayer -ao jack  -srate 16000 '/home/alf/mp3/effeckt006.mp3' So far everything is excellent. How i do write my own DSP plugin for jack ? I wanna use my DSP plugin at this point, where all input channels are mixed together . How my plugin can ioctl() detect current samplerate, endianess, nr channels, samples interleaved or not, ... and maybe some more stream parameters. How do compile jack plugins ? What #include-s  must be used ? If my plugin will grow, and eat more and more CPU, how i prevent x-runs ? Is somewhere _simple_ C example how i can write jack plugins ? In simplest case - what is minimal program where i do each sample divide by 2 ( or for 16bit short type just  shift  sample>>1 ) Tnx in advance. Alf ----

14 years, 5 months

Re: [LAD] Meego pulseaudio "compliance" and "enforcement" (was Re: [Meego-handset] Enabling Speakerphone)

by Niels Mayer

FYI, here's an example of the kind of app that needs to have good audio performance on a handset: http://www.youtube.com/watch?v=bwqflVX5oNo http://www.warmplace.ru/soft/sunvox/ ( http://lists.linuxaudio.org/pipermail/linux-audio-user/2010-December/074828… ) It has decent performance on maemo and appears to use pulseaudio, which eats 1/3 of the CPU of the 'sunvox' process. The sunvox application appears to have a UI thread and a worker thread each consuming about 1/2 of the 35% CPU load of the app. Mem: 238432K used, 7108K free, 0K shrd, 3396K buff, 67580K cached CPU: 52.2% usr 7.8% sys 0.0% nice 39.8% idle 0.0% io 0.0% irq 0.0% softirq Load average: 0.99 0.45 0.16 PID PPID USER STAT RSS %MEM %CPU COMMAND 1916 1162 user S 6388 2.5 35.1 /usr/bin/sunvox 825 1 pulse R < 3812 1.5 12.1 /usr/bin/pulseaudio --system --high-priority 897 730 root S < 16524 6.7 9.6 /usr/bin/Xorg -logfile /tmp/Xorg.0.log -logverbose 1 -nolisten tcp -noreset -s 0 -core Doing an "ls -lR /" in a remote xterm (over SSH) results in some audio glitching, but no "desynchronization" where the audio just stops playing. -- Niels.

14 years, 5 months

Re: [LAD] Audio Files: Bpm tagging

by Bearcat M. Sandor

On 2/3/2011 1:14 PM, Stefan Kost wrote: > On 02/03/2011 09:27 PM, Bearcat M. Sandor wrote: >> On 2/2/2011 2:43 PM, Stefan Kost wrote: >>> Am 16.01.2011 17:42, schrieb Harry Van Haaren: >>>> Hey guys, >>>> >>>> I'm looking for the "lowest-common-denominator" of audio file >>>> formats that >>>> handle BPM info. >>> mp3, wav, vorbis, mp4, mkv files can have BPM metadata (according to >>> my grep in >>> the gstreamer source code). GStreamer has a bpm detector as well. >>> >>> Stefan >>> >> What? No love for my favorite, wavpack? Wavpack never gets any >> respect! :"( >> >> Bearcat M. Sandor > Erm, it should work already. From the wavpack homepage: > Uses ID3v1 and APEv2 tags for metadata (including ReplayGain) > Both are well supported by gstreamer. :) > > Stefan I got it working. I didn't realize that the gst-plugins-soundtouch plug-in package did not exist in Gentoo as part of the gst-plugins-bad package. One that was installed i was able to get it all working. Bearcat M. Sandor

14 years, 5 months

Re: [LAD] Audio Files: Bpm tagging

by Bearcat M. Sandor

On 2/3/2011 1:14 PM, Stefan Kost wrote: > On 02/03/2011 09:27 PM, Bearcat M. Sandor wrote: >> On 2/2/2011 2:43 PM, Stefan Kost wrote: >>> Am 16.01.2011 17:42, schrieb Harry Van Haaren: >>>> Hey guys, >>>> >>>> I'm looking for the "lowest-common-denominator" of audio file >>>> formats that >>>> handle BPM info. >>> mp3, wav, vorbis, mp4, mkv files can have BPM metadata (according to >>> my grep in >>> the gstreamer source code). GStreamer has a bpm detector as well. >>> >>> Stefan >>> >> What? No love for my favorite, wavpack? Wavpack never gets any >> respect! :"( >> >> Bearcat M. Sandor > Erm, it should work already. From the wavpack homepage: > Uses ID3v1 and APEv2 tags for metadata (including ReplayGain) > Both are well supported by gstreamer. :) > > Stefan Thank you Stefan, The bpm detection, tagging is not working in banshee. I'll do some sniffing around and see why that might be. Thanks, Bearcat M. Sandor

14 years, 5 months

Re: [LAD] [LAA] gst123-0.1.4

by Niels Mayer

On Sun, Jan 16, 2011 at 6:13 AM, Stefan Westerfeld <stefan(a)space.twc.de> wrote: > Website: http://space.twc.de/~stefan/gst123.php > Download: http://space.twc.de/~stefan/gst123/gst123-0.1.4.tar.bz2 Stefan -- Thanks for making this new version of gst123 available... I tried my usual torture test on gst123 0.1.4 and it's still having the same problem on the KCRW live stream, which IMHO stems from some kind of memory leak related to changing of program text (since other streams that don't change the program text don't seem to crash). The crashes happen after several hours of playing, usually after a new program text label is output on the stream. (note parsing oddities seen before a crash e.g. "Title : <HTML> Artist : " ). I ran the test by outputting to each of the stereo channels on an ice1712 soundcard, which allows for five simultaneous gst123 instances to run (see the end of http://nielsmayer.com/npm/dot-asoundrc.txt for details on the setup). ................................ gnulem-411-~/gst123-0.1.4> gst123 -a alsa=66ch12 http://64.12.61.1:80/stream/1046 Playing http://64.12.61.1:80/stream/1046 Title : All Things Considered - 5 Artist : Album : Genre : Eclectic, Alternative, NPR, Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 168.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 170.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 169.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 170.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 180.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 180.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 180.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 180.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Title : Art Talk - All Things Con Artist : Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Title : All Things Considered - 5 Artist : Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Title : Which Way, L.A.? - 7P-8P Artist : Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Title : Garth Trinidad 89.9FM Hand- Artist : Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Title : <HTML> Artist : Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Title : Raul Campos 89.9FM Hand--Pi Artist : Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s *** glibc detected *** gst123: free(): invalid pointer: 0x00007fe0540f4410 *** ======= Backtrace: ========= /lib64/libc.so.6[0x3680a75336] /usr/lib64/libgstreamer-0.10.so.0[0x369b2344a9] /usr/lib64/libgstreamer-0.10.so.0(gst_mini_object_unref+0x121)[0x369b2578c1] /usr/lib64/libgstaudio-0.10.so.0[0x38eae18716] /usr/lib64/libgstaudio-0.10.so.0(gst_ring_buffer_release+0x16e)[0x38eae0b11e] /usr/lib64/libgstaudio-0.10.so.0[0x38eae135c8] /usr/lib64/libgstreamer-0.10.so.0(gst_element_change_state+0x2c)[0x369b242f8c] /usr/lib64/libgstreamer-0.10.so.0[0x369b2464e8] /usr/lib64/libgstreamer-0.10.so.0[0x369b232954] /usr/lib64/libgstreamer-0.10.so.0(gst_element_change_state+0x2c)[0x369b242f8c] /usr/lib64/libgstreamer-0.10.so.0[0x369b2464e8] /usr/lib64/libgstreamer-0.10.so.0[0x369b232954] /usr/lib64/gstreamer-0.10/libgstplaybin.so(+0x1b380)[0x7fe0618ae380] /usr/lib64/libgstreamer-0.10.so.0(gst_element_change_state+0x2c)[0x369b242f8c] /usr/lib64/libgstreamer-0.10.so.0[0x369b2464e8] /usr/lib64/libgstreamer-0.10.so.0[0x369b232954] /usr/lib64/libgstreamer-0.10.so.0[0x369b2659f0] /usr/lib64/gstreamer-0.10/libgstplaybin.so(+0x118cf)[0x7fe0618a48cf] /usr/lib64/libgstreamer-0.10.so.0(gst_element_change_state+0x2c)[0x369b242f8c] /usr/lib64/libgstreamer-0.10.so.0(gst_element_change_state+0xaf)[0x369b24300f] /usr/lib64/libgstreamer-0.10.so.0[0x369b2464e8] gst123[0x408dca] gst123[0x405f19] /usr/lib64/libgstreamer-0.10.so.0[0x369b237cb4] /lib64/libglib-2.0.so.0(g_main_context_dispatch+0x22e)[0x368223923e] /lib64/libglib-2.0.so.0[0x368223cc28] /lib64/libglib-2.0.so.0(g_main_loop_run+0x1a5)[0x368223d075] gst123[0x407212] /lib64/libc.so.6(__libc_start_main+0xfd)[0x3680a1eb1d] gst123[0x404b89] ======= Memory map: ======== 00400000-00416000 r-xp 00000000 fd:00 1151830 /usr/local/bin/gst123 00615000-00616000 rw-p 00015000 fd:00 1151830 /usr/local/bin/gst123 00616000-00619000 rw-p 00000000 00:00 0 02376000-0267d000 rw-p 00000000 00:00 0 [heap] 3093600000-3093697000 r-xp 00000000 fd:00 7756 /usr/lib64/libfreetype.so.6.3.22 3093697000-3093896000 ---p 00097000 fd:00 7756 /usr/lib64/libfreetype.so.6.3.22 3093896000-309389c000 rw-p 00096000 fd:00 7756 /usr/lib64/libfreetype.so.6.3.22 3093a00000-3093a34000 r-xp 00000000 fd:00 7911 /usr/lib64/libfontconfig.so.1.4.4 3093a34000-3093c34000 ---p 00034000 fd:00 7911 /usr/lib64/libfontconfig.so.1.4.4 3093c34000-3093c36000 rw-p 00034000 fd:00 7911 /usr/lib64/libfontconfig.so.1.4.4 3093e00000-309425d000 r-xp 00000000 fd:00 16306 /usr/lib64/libgtk-x11-2.0.so.0.1800.9 309425d000-309445c000 ---p 0045d000 fd:00 16306 /usr/lib64/libgtk-x11-2.0.so.0.1800.9 309445c000-3094467000 rw-p 0045c000 fd:00 16306 /usr/lib64/libgtk-x11-2.0.so.0.1800.9 3094467000-3094469000 rw-p 00000000 00:00 0 3094600000-30946b6000 r-xp 00000000 fd:00 16012 /usr/lib64/libgdk-x11-2.0.so.0.1800.9 30946b6000-30948b6000 ---p 000b6000 fd:00 16012 /usr/lib64/libgdk-x11-2.0.so.0.1800.9 30948b6000-30948bb000 rw-p 000b6000 fd:00 16012 /usr/lib64/libgdk-x11-2.0.so.0.1800.9 3094a00000-3094ac0000 r-xp 00000000 fd:00 31404 /usr/lib64/libavformat.so.52.64.2 3094ac0000-3094cbf000 ---p 000c0000 fd:00 31404 /usr/lib64/libavformat.so.52.64.2 3094cbf000-3094ccc000 rw-p 000bf000 fd:00 31404 /usr/lib64/libavformat.so.52.64.2 3095400000-3095428000 r-xp 00000000 fd:00 15422 /usr/lib64/libpangoft2-1.0.so.0.2600.2 3095428000-3095628000 ---p 00028000 fd:00 15422 /usr/lib64/libpangoft2-1.0.so.0.2600.2 3095628000-309562a000 rw-p 00028000 fd:00 15422 /usr/lib64/libpangoft2-1.0.so.0.2600.2 3095800000-309580b000 r-xp 00000000 fd:00 15988 /usr/lib64/libpangocairo-1.0.so.0.2600.2 309580b000-3095a0b000 ---p 0000b000 fd:00 15988 /usr/lib64/libpangocairo-1.0.so.0.2600.2 3095a0b000-3095a0c000 rw-p 0000b000 fd:00 15988 /usr/lib64/libpangocairo-1.0.so.0.2600.2 3095c00000-3095c76000 r-xp 00000000 fd:00 7764 /usr/lib64/libcairo.so.2.10800.8 3095c76000-3095e76000 ---p 00076000 fd:00 7764 /usr/lib64/libcairo.so.2.10800.8 3095e76000-3095e79000 rw-p 00076000 fd:00 7764 /usr/lib64/libcairo.so.2.10800.8 3096000000-3096010000 r-xp 00000000 fd:00 12469 /lib64/libbz2.so.1.0.6 3096010000-309620f000 ---p 00010000 fd:00 12469 /lib64/libbz2.so.1.0.6 309620f000-3096211000 rw-p 0000f000 fd:00 12469 /lib64/libbz2.so.1.0.6 3680600000-368061e000 r-xp 00000000 fd:00 7632 /lib64/ld-2.11.2.so 368081d000-368081e000 r--p 0001d000 fd:00 7632 /lib64/ld-2.11.2.so 368081e000-368081f000 rw-p 0001e000 fd:00 7632 /lib64/ld-2.11.2.so 368081f000-3680820000 rw-p 00000000 00:00 0 3680a00000-3680b73000 r-xp 00000000 fd:00 7675 /lib64/libc-2.11.2.so 3680b73000-3680d72000 ---p 00173000 fd:00 7675 /lib64/libc-2.11.2.so 3680d72000-3680d76000 r--p 00172000 fd:00 7675 /lib64/libc-2.11.2.so 3680d76000-3680d77000 rw-p 00176000 fd:00 7675 /lib64/libc-2.11.2.so 3680d77000-3680d7c000 rw-p 00000000 00:00 0 3680e00000-3680e83000 r-xp 00000000 fd:00 15447 /lib64/libm-2.11.2.so 3680e83000-3681082000 ---p 00083000 fd:00 15447 /lib64/libm-2.11.2.so 3681082000-3681083000 r--p 00082000 fd:00 15447 /lib64/libm-2.11.2.so 3681083000-3681084000 rw-p 00083000 fd:00 15447 /lib64/libm-2.11.2.so 3681200000-3681202000 r-xp 00000000 fd:00 18795 /lib64/libdl-2.11.2.so 3681202000-3681402000 ---p 00002000 fd:00 18795 /lib64/libdl-2.11.2.so 3681402000-3681403000 r--p 00002000 fd:00 18795 /lib64/libdl-2.11.2.so 3681403000-3681404000 rw-p 00003000 fd:00 18795 /lib64/libdl-2.11.2.so 3681600000-3681617000 r-xp 00000000 fd:00 18462 /lib64/libpthread-2.11.2.so Abort (core dumped) .................................. gnulem-144-~> gst123 -a alsa=66ch34 http://64.12.61.1:80/stream/1046 Playing http://64.12.61.1:80/stream/1046 Title : All Things Considered - 5 Artist : Album : Genre : Eclectic, Alternative, NPR, Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 171.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 169.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 170.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 180.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 180.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Title : Art Talk - All Things Con Artist : Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Title : All Things Considered - 5 Artist : Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Title : Which Way, L.A.? - 7P-8P Artist : Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Title : Garth Trinidad 89.9FM Hand- Artist : Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Title : <HTML> Artist : Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Title : Raul Campos 89.9FM Hand--Pi Artist : Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Title : Morning Edition - 3A-5A Artist : Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s *** glibc detected *** gst123: double free or corruption (!prev): 0x00007f5a380ee400 *** ======= Backtrace: ========= /lib64/libc.so.6[0x3680a75336] /usr/lib64/libgstreamer-0.10.so.0[0x369b2344a9] /usr/lib64/libgstreamer-0.10.so.0(gst_mini_object_unref+0x121)[0x369b2578c1] /usr/lib64/libgstbase-0.10.so.0[0x3690e103e1] /usr/lib64/libgstbase-0.10.so.0[0x3690e115b9] /usr/lib64/libgstbase-0.10.so.0[0x3690e15b24] /usr/lib64/libgstbase-0.10.so.0[0x3690e15fc6] /usr/lib64/libgstreamer-0.10.so.0[0x369b261a05] /usr/lib64/libgstreamer-0.10.so.0[0x369b2624b6] /usr/lib64/libgstbase-0.10.so.0[0x3690e25481] /usr/lib64/libgstreamer-0.10.so.0[0x369b261a05] /usr/lib64/libgstreamer-0.10.so.0[0x369b2624b6] /usr/lib64/libgstbase-0.10.so.0[0x3690e25481] /usr/lib64/libgstreamer-0.10.so.0[0x369b261a05] /usr/lib64/libgstreamer-0.10.so.0[0x369b2624b6] /usr/lib64/libgstbase-0.10.so.0[0x3690e25481] /usr/lib64/libgstreamer-0.10.so.0[0x369b261a05] /usr/lib64/libgstreamer-0.10.so.0[0x369b2624b6] /usr/lib64/libgstreamer-0.10.so.0[0x369b261a05] /usr/lib64/libgstreamer-0.10.so.0[0x369b2624b6] /usr/lib64/gstreamer-0.10/libgstcoreelements.so(+0x20f9f)[0x7f5a467d0f9f] /usr/lib64/libgstreamer-0.10.so.0[0x369b261a05] /usr/lib64/libgstreamer-0.10.so.0[0x369b2624b6] /usr/lib64/libgstreamer-0.10.so.0[0x369b261a05] /usr/lib64/libgstreamer-0.10.so.0[0x369b2624b6] /usr/lib64/gstreamer-0.10/libgstplaybin.so(+0x25d40)[0x7f5a474b2d40] /usr/lib64/libgstreamer-0.10.so.0[0x369b261a05] /usr/lib64/libgstreamer-0.10.so.0[0x369b2624b6] /usr/lib64/libgstreamer-0.10.so.0[0x369b261a05] /usr/lib64/libgstreamer-0.10.so.0[0x369b2624b6] /usr/lib64/libgstreamer-0.10.so.0[0x369b261a05] /usr/lib64/libgstreamer-0.10.so.0[0x369b2624b6] /usr/lib64/gstreamer-0.10/libgstmad.so(+0x5e92)[0x7f5a3e8c1e92] /usr/lib64/libgstreamer-0.10.so.0[0x369b261a05] /usr/lib64/libgstreamer-0.10.so.0[0x369b2624b6] /usr/lib64/gstreamer-0.10/libgstmpegaudioparse.so(+0x63ea)[0x7f5a3eacc3ea] /usr/lib64/gstreamer-0.10/libgstmpegaudioparse.so(+0x7549)[0x7f5a3eacd549] /usr/lib64/libgstreamer-0.10.so.0[0x369b261a05] /usr/lib64/libgstreamer-0.10.so.0[0x369b2624b6] /usr/lib64/gstreamer-0.10/libgsticydemux.so(+0x2796)[0x7f5a45bad796] /usr/lib64/gstreamer-0.10/libgsticydemux.so(+0x2c4e)[0x7f5a45badc4e] /usr/lib64/libgstreamer-0.10.so.0[0x369b261a05] /usr/lib64/libgstreamer-0.10.so.0[0x369b2624b6] /usr/lib64/gstreamer-0.10/libgstcoreelements.so(+0x23a8f)[0x7f5a467d3a8f] /usr/lib64/libgstreamer-0.10.so.0[0x369b261a05] /usr/lib64/libgstreamer-0.10.so.0[0x369b2624b6] /usr/lib64/libgstreamer-0.10.so.0[0x369b261a05] /usr/lib64/libgstreamer-0.10.so.0[0x369b2624b6] /usr/lib64/gstreamer-0.10/libgstcoreelements.so(+0x1f3a9)[0x7f5a467cf3a9] /usr/lib64/libgstreamer-0.10.so.0[0x369b28691d] /lib64/libglib-2.0.so.0[0x3682263722] /lib64/libglib-2.0.so.0[0x3682262134] /lib64/libpthread.so.0[0x36816068e0] /lib64/libc.so.6(clone+0x6d)[0x3680ae0c9d] ======= Memory map: ======== 00400000-00416000 r-xp 00000000 fd:00 1151830 /usr/local/bin/gst123 00615000-00616000 rw-p 00015000 fd:00 1151830 /usr/local/bin/gst123 00616000-00619000 rw-p 00000000 00:00 0 01456000-0175d000 rw-p 00000000 00:00 0 [heap] 3093600000-3093697000 r-xp 00000000 fd:00 7756 /usr/lib64/libfreetype.so.6.3.22 3093697000-3093896000 ---p 00097000 fd:00 7756 /usr/lib64/libfreetype.so.6.3.22 3093896000-309389c000 rw-p 00096000 fd:00 7756 /usr/lib64/libfreetype.so.6.3.22 3093a00000-3093a34000 r-xp 00000000 fd:00 7911 /usr/lib64/libfontconfig.so.1.4.4 3093a34000-3093c34000 ---p 00034000 fd:00 7911 /usr/lib64/libfontconfig.so.1.4.4 3093c34000-3093c36000 rw-p 00034000 fd:00 7911 /usr/lib64/libfontconfig.so.1.4.4 3093e00000-309425d000 r-xp 00000000 fd:00 16306 /usr/lib64/libgtk-x11-2.0.so.0.1800.9 309425d000-309445c000 ---p 0045d000 fd:00 16306 /usr/lib64/libgtk-x11-2.0.so.0.1800.9 309445c000-3094467000 rw-p 0045c000 fd:00 16306 /usr/lib64/libgtk-x11-2.0.so.0.1800.9 3094467000-3094469000 rw-p 00000000 00:00 0 3094600000-30946b6000 r-xp 00000000 fd:00 16012 /usr/lib64/libgdk-x11-2.0.so.0.1800.9 30946b6000-30948b6000 ---p 000b6000 fd:00 16012 /usr/lib64/libgdk-x11-2.0.so.0.1800.9 30948b6000-30948bb000 rw-p 000b6000 fd:00 16012 /usr/lib64/libgdk-x11-2.0.so.0.1800.9 3094a00000-3094ac0000 r-xp 00000000 fd:00 31404 /usr/lib64/libavformat.so.52.64.2 3094ac0000-3094cbf000 ---p 000c0000 fd:00 31404 /usr/lib64/libavformat.so.52.64.2 3094cbf000-3094ccc000 rw-p 000bf000 fd:00 31404 /usr/lib64/libavformat.so.52.64.2 3095400000-3095428000 r-xp 00000000 fd:00 15422 /usr/lib64/libpangoft2-1.0.so.0.2600.2 3095428000-3095628000 ---p 00028000 fd:00 15422 /usr/lib64/libpangoft2-1.0.so.0.2600.2 3095628000-309562a000 rw-p 00028000 fd:00 15422 /usr/lib64/libpangoft2-1.0.so.0.2600.2 3095800000-309580b000 r-xp 00000000 fd:00 15988 /usr/lib64/libpangocairo-1.0.so.0.2600.2 309580b000-3095a0b000 ---p 0000b000 fd:00 15988 /usr/lib64/libpangocairo-1.0.so.0.2600.2 3095a0b000-3095a0c000 rw-p 0000b000 fd:00 15988 /usr/lib64/libpangocairo-1.0.so.0.2600.2 3095c00000-3095c76000 r-xp 00000000 fd:00 7764 /usr/lib64/libcairo.so.2.10800.8 3095c76000-3095e76000 ---p 00076000 fd:00 7764 /usr/lib64/libcairo.so.2.10800.8 3095e76000-3095e79000 rw-p 00076000 fd:00 7764 /usr/lib64/libcairo.so.2.10800.8 3096000000-3096010000 r-xp 00000000 fd:00 12469 /lib64/libbz2.so.1.0.6 3096010000-309620f000 ---p 00010000 fd:00 12469 /lib64/libbz2.so.1.0.6 309620f000-3096211000 rw-p 0000f000 fd:00 12469 /lib64/libbz2.so.1.0.6 3680600000-368061e000 r-xp 00000000 fd:00 7632 /lib64/ld-2.11.2.so 368081d000-368081e000 r--p 0001d000 fd:00 7632 /lib64/ld-2.11.2.so 368081e000-368081f000 rw-p 0001e000 fd:00 7632 /lib64/ld-2.11.2.so 368081f000-3680820000 rw-p 00000000 00:00 0 3680a00000-3680b73000 r-xp 00000000 fd:00 7675 /lib64/libc-2.11.2.so 3680b73000-3680d72000 ---p 00173000 fd:00 7675 /lib64/libc-2.11.2.so 3680d72000-3680d76000 r--p 00172000 fd:00 7675 /lib64/libc-2.11.2.so 3680d76000-3680d77000 rw-p 00176000 fd:00 7675 /lib64/libc-2.11.2.so 3680d77000-3680d7c000 rw-p 00000000 00:00 0 3680e00000-3680e83000 r-xp 00000000 fd:00 15447 /lib64/libm-2.11.2.so 3680e83000-3681082000 ---p 00083000 fd:00 15447 /lib64/libm-2.11.2.so 3681082000-3681083000 r--p 00082000 fd:00 15447 /lib64/libm-2.11.2.so 3681083000-3681084000 rw-p 00083000 fd:00 15447 /lib64/libm-2.11.2.so 3681200000-3681202000 r-xp 00000000 fd:00 18795 /lib64/libdl-2.11.2.so 3681202000-3681402000 ---p 00002000 fd:00 18795 /lib64/libdl-2.11.2.so 3681402000-3681403000 r--p 00002000 fd:00 18795 /lib64/libdl-2.11.2.so 3681403000-3681404000 rw-p 00003000 fd:00 18795 /lib64/libdl-2.11.2.so 3681600000-3681617000 r-xp 00000000 fd:00 18462 /lib64/libpthread-2.11.2.so 3681617000-3681816000 ---p 00017000 fd:00 18462 /lib64/libpthread-2.11.2.so 3681816000-3681817000 r--p 00016000 fd:00 18462 /lib64/libpthread-2.11.2.so 3681817000-3681818000 rw-p 00017000 fd:00 18462 /lib64/libpthread-2.11.2.so 3681818000-368181c000 rw-p 00000000 00:00 0 3681a00000-3681a15000 r-xp 00000000 fd:00 17671 /lib64/libz.so.1.2.3 3681a15000-3681c14000 ---p 00015000 fd:00 17671 /lib64/libz.so.1.2.3 3681c14000-3681c15000 rw-p 00014000 fd:00 17671 /lib64/libz.so.1.2.3 3681e00000-3681e07000 r-xp 00000000 fd:00 21801 /lib64/librt-2.11.2.so 3681e07000-3682006000 ---p 00007000 fd:00 21801 /lib64/librt-2.11.2.so 3682006000-3682007000 r--p 00006000 fd:00 21801 /lib64/librt-2.11.2.so 3682007000-3682008000 rw-p 00007000 fd:00 21801 /lib64/librt-2.11.2.so 3682200000-36822e4000 r-xp 00000000 fd:00 21965 /lib64/libglib-2.0.so.0.2200.5 36822e4000-36824e4000 ---p 000e4000 fd:00 21965 /lib64/libglib-2.0.so.0.2200.5 36824e4000-36824e5000 rw-p 000e4000 fd:00 21965 /lib64/libglib-2.0.so.0.2200.5 36824e5000-36824e6000 rw-p 00000000 00:00 0 3682600000-3682739000 r-xp 00000000 fd:00 23034 /usr/lib64/libX11.so.6.3.0Abort (core dumped) .................................. gnulem-103-~> gst123 -a alsa=66spdif http://64.12.61.1:80/stream/1046 Playing http://64.12.61.1:80/stream/1046 Title : All Things Considered - 5 Artist : Album : Genre : Eclectic, Alternative, NPR, Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 180.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 189.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 180.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 180.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 180.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 180.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Title : Art Talk - All Things Con Artist : Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Title : All Things Considered - 5 Artist : Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Title : Which Way, L.A.? - 7P-8P Artist : Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s *** glibc detected *** gst123: free(): invalid pointer: 0x00007fb4780f1620 *** ======= Backtrace: ========= /lib64/libc.so.6[0x3680a75336] /usr/lib64/libgstreamer-0.10.so.0[0x369b2344a9] /usr/lib64/libgstreamer-0.10.so.0(gst_mini_object_unref+0x121)[0x369b2578c1] /usr/lib64/libgstaudio-0.10.so.0[0x38eae18716] /usr/lib64/libgstaudio-0.10.so.0(gst_ring_buffer_release+0x16e)[0x38eae0b11e] /usr/lib64/libgstaudio-0.10.so.0[0x38eae135c8] /usr/lib64/libgstreamer-0.10.so.0(gst_element_change_state+0x2c)[0x369b242f8c] /usr/lib64/libgstreamer-0.10.so.0[0x369b2464e8] /usr/lib64/libgstreamer-0.10.so.0[0x369b232954] /usr/lib64/libgstreamer-0.10.so.0(gst_element_change_state+0x2c)[0x369b242f8c] /usr/lib64/libgstreamer-0.10.so.0[0x369b2464e8] /usr/lib64/libgstreamer-0.10.so.0[0x369b232954] /usr/lib64/gstreamer-0.10/libgstplaybin.so(+0x1b380)[0x7fb485a3e380] /usr/lib64/libgstreamer-0.10.so.0(gst_element_change_state+0x2c)[0x369b242f8c] /usr/lib64/libgstreamer-0.10.so.0[0x369b2464e8] /usr/lib64/libgstreamer-0.10.so.0[0x369b232954] /usr/lib64/libgstreamer-0.10.so.0[0x369b2659f0] /usr/lib64/gstreamer-0.10/libgstplaybin.so(+0x118cf)[0x7fb485a348cf] /usr/lib64/libgstreamer-0.10.so.0(gst_element_change_state+0x2c)[0x369b242f8c] /usr/lib64/libgstreamer-0.10.so.0(gst_element_change_state+0xaf)[0x369b24300f] /usr/lib64/libgstreamer-0.10.so.0[0x369b2464e8] gst123[0x408dca] gst123[0x405f19] /usr/lib64/libgstreamer-0.10.so.0[0x369b237cb4] /lib64/libglib-2.0.so.0(g_main_context_dispatch+0x22e)[0x368223923e] /lib64/libglib-2.0.so.0[0x368223cc28] /lib64/libglib-2.0.so.0(g_main_loop_run+0x1a5)[0x368223d075] gst123[0x407212] /lib64/libc.so.6(__libc_start_main+0xfd)[0x3680a1eb1d] gst123[0x404b89] ======= Memory map: ======== 00400000-00416000 r-xp 00000000 fd:00 1151830 /usr/local/bin/gst123 00615000-00616000 rw-p 00015000 fd:00 1151830 /usr/local/bin/gst123 00616000-00619000 rw-p 00000000 00:00 0 01e27000-0212c000 rw-p 00000000 00:00 0 [heap] 3093600000-3093697000 r-xp 00000000 fd:00 7756 /usr/lib64/libfreetype.so.6.3.22 3093697000-3093896000 ---p 00097000 fd:00 7756 /usr/lib64/libfreetype.so.6.3.22 3093896000-309389c000 rw-p 00096000 fd:00 7756 /usr/lib64/libfreetype.so.6.3.22 3093a00000-3093a34000 r-xp 00000000 fd:00 7911 /usr/lib64/libfontconfig.so.1.4.4 3093a34000-3093c34000 ---p 00034000 fd:00 7911 /usr/lib64/libfontconfig.so.1.4.4 3093c34000-3093c36000 rw-p 00034000 fd:00 7911 /usr/lib64/libfontconfig.so.1.4.4 3093e00000-309425d000 r-xp 00000000 fd:00 16306 /usr/lib64/libgtk-x11-2.0.so.0.1800.9 309425d000-309445c000 ---p 0045d000 fd:00 16306 /usr/lib64/libgtk-x11-2.0.so.0.1800.9 309445c000-3094467000 rw-p 0045c000 fd:00 16306 /usr/lib64/libgtk-x11-2.0.so.0.1800.9 3094467000-3094469000 rw-p 00000000 00:00 0 3094600000-30946b6000 r-xp 00000000 fd:00 16012 /usr/lib64/libgdk-x11-2.0.so.0.1800.9 30946b6000-30948b6000 ---p 000b6000 fd:00 16012 /usr/lib64/libgdk-x11-2.0.so.0.1800.9 30948b6000-30948bb000 rw-p 000b6000 fd:00 16012 /usr/lib64/libgdk-x11-2.0.so.0.1800.9 3094a00000-3094ac0000 r-xp 00000000 fd:00 31404 /usr/lib64/libavformat.so.52.64.2 3094ac0000-3094cbf000 ---p 000c0000 fd:00 31404 /usr/lib64/libavformat.so.52.64.2 3094cbf000-3094ccc000 rw-p 000bf000 fd:00 31404 /usr/lib64/libavformat.so.52.64.2 3095400000-3095428000 r-xp 00000000 fd:00 15422 /usr/lib64/libpangoft2-1.0.so.0.2600.2 3095428000-3095628000 ---p 00028000 fd:00 15422 /usr/lib64/libpangoft2-1.0.so.0.2600.2 3095628000-309562a000 rw-p 00028000 fd:00 15422 /usr/lib64/libpangoft2-1.0.so.0.2600.2 3095800000-309580b000 r-xp 00000000 fd:00 15988 /usr/lib64/libpangocairo-1.0.so.0.2600.2 309580b000-3095a0b000 ---p 0000b000 fd:00 15988 /usr/lib64/libpangocairo-1.0.so.0.2600.2 3095a0b000-3095a0c000 rw-p 0000b000 fd:00 15988 /usr/lib64/libpangocairo-1.0.so.0.2600.2 3095c00000-3095c76000 r-xp 00000000 fd:00 7764 /usr/lib64/libcairo.so.2.10800.8 3095c76000-3095e76000 ---p 00076000 fd:00 7764 /usr/lib64/libcairo.so.2.10800.8 3095e76000-3095e79000 rw-p 00076000 fd:00 7764 /usr/lib64/libcairo.so.2.10800.8 3096000000-3096010000 r-xp 00000000 fd:00 12469 /lib64/libbz2.so.1.0.6 3096010000-309620f000 ---p 00010000 fd:00 12469 /lib64/libbz2.so.1.0.6 309620f000-3096211000 rw-p 0000f000 fd:00 12469 /lib64/libbz2.so.1.0.6 3680600000-368061e000 r-xp 00000000 fd:00 7632 /lib64/ld-2.11.2.so 368081d000-368081e000 r--p 0001d000 fd:00 7632 /lib64/ld-2.11.2.so 368081e000-368081f000 rw-p 0001e000 fd:00 7632 /lib64/ld-2.11.2.so 368081f000-3680820000 rw-p 00000000 00:00 0 3680a00000-3680b73000 r-xp 00000000 fd:00 7675 /lib64/libc-2.11.2.so 3680b73000-3680d72000 ---p 00173000 fd:00 7675 /lib64/libc-2.11.2.so 3680d72000-3680d76000 r--p 00172000 fd:00 7675 /lib64/libc-2.11.2.so 3680d76000-3680d77000 rw-p 00176000 fd:00 7675 /lib64/libc-2.11.2.so 3680d77000-3680d7c000 rw-p 00000000 00:00 0 3680e00000-3680e83000 r-xp 00000000 fd:00 15447 /lib64/libm-2.11.2.so 3680e83000-3681082000 ---p 00083000 fd:00 15447 /lib64/libm-2.11.2.so 3681082000-3681083000 r--p 00082000 fd:00 15447 /lib64/libm-2.11.2.so 3681083000-3681084000 rw-p 00083000 fd:00 15447 /lib64/libm-2.11.2.so 3681200000-3681202000 r-xp 00000000 fd:00 18795 /lib64/libdl-2.11.2.so 3681202000-3681402000 ---p 00002000 fd:00 18795 /lib64/libdl-2.11.2.so 3681402000-3681403000 r--p 00002000 fd:00 18795 /lib64/libdl-2.11.2.so 3681403000-3681404000 rw-p 00003000 fd:00 18795 /lib64/libdl-2.11.2.so 3681600000-3681617000 r-xp 00000000 fd:00 18462 /lib64/libpthread-2.11.2.so Abort (core dumped) .................................. here's the two out of the five streams i've started are still running and hasn't crashed yet: gnulem-103-~> gst123 -a alsa=66ch56 http://64.12.61.1:80/stream/1046 .... gnulem-102-~> gst123 -a alsa=66ch56 http://64.12.61.1:80/stream/1046 Playing http://64.12.61.1:80/stream/1046 Title : Marketplace - 2P-2:30P Artist : Album : Genre : Eclectic, Alternative, NPR, Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 202.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 199.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 189.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 180.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 180.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 190.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 190.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 190.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 189.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 190.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 190.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 189.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Title : All Things Considered - 3 Artist : Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Title : Opening the Curtain - All Artist : Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Title : All Things Considered - 3 Artist : Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Title : All Things Considered - 5 Artist : Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s gnulem-103-~> gst123 -a alsa=66ch56 http://64.12.61.1:80/stream/1046 Playing http://64.12.61.1:80/stream/1046 Title : All Things Considered - 5 Artist : Album : Genre : Eclectic, Alternative, NPR, Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 168.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 170.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 180.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 180.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 180.0 kbit/s Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Title : Art Talk - All Things Con Artist : Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Title : All Things Considered - 5 Artist : Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Title : Which Way, L.A.? - 7P-8P Artist : Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Title : Garth Trinidad 89.9FM Hand- Artist : Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Title : <HTML> Artist : Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Title : Raul Campos 89.9FM Hand--Pi Artist : Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Title : Morning Edition - 3A-5A Artist : Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Title : Morning Edition - 7A-9A Artist : Codec : MPEG 1 Audio, Layer 3 (MP3) Bitrate : 179.0 kbit/s Time: 13:40:38.90

14 years, 5 months

snd-usb-audio dying on jackd xruns

by Rods Bobavich

So I start jackd and it runs fine for a while. Then ALSA crashes and triggers an xrun. Jackd continues to do its merry thing - minus the part about spitting info out to my soundcard... I've tried multiple usb intefaces. All work fine with other computers. I've tried multiple version of Ubuntu with various versions of ALSA. Only this machine is affected. I have 3 other machines that run these interfaces just fine... So it seems to be a hardware compatibility issue not a software glitch in one version. I've tried many boot flags but to no avail. Am at a loss on how to troubleshoot. The machine is M4N75TD motherboard with a Phenom II 1055T and the latest bios flash. ...Rods ;-)

14 years, 5 months

Audio Files: Bpm tagging

by Harry Van Haaren

Hey guys, I'm looking for the "lowest-common-denominator" of audio file formats that handle BPM info. Do programs like Ardour / Audacity / Mixxx write BPM info when exporting / analysing a file? Cheers, -Harry

14 years, 5 months

incorrect number of samples reading from /dev/dsp1

by farhan baluch

Hi All, I am trying to read data from a usb microphone and using the pretty standard method of using ioctl's to setup the sampling rate, channels, bits and block size . This all works so the device is correctly setup. I then use "read" to read samples from the device which shows up as /dev/dsp1. I get a lot more samples from this read command in one second of recording than the set sample rate. E.g. if i set 10Khz on one run i got 269312 samples. Looking at the raw data it looks like there is a lot of duplication of data? is this common for the audio input device? if so what kind of encoding is it (e.g with some specific redundancy built in)? thanks farhan

14 years, 5 months

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Linux-audio-dev