Great! Thanks Samuel. On 14/04/15 20:12, Samuel Engelmajer wrote: > Hi David. > > I will answer only for the arecord part. > > Looking at alsa-utils 1.0.29 and back (1.0.26, 1.0.21...) it seems that > Wave header has never supported S24_3BE format. > Or at least, that arecord won't let you do it, looking at the switch case > from 'begin_wave' function in aplay.c. > > Using raw type" -t raw" (no header) should work. > > Hope this helps, > Regards > > Sam > > > > > > 2015-04-14 15:33 GMT+02:00 David W. <regulars@xxxxxxxxxxxx > <mailto:regulars@xxxxxxxxxxxx>>: > > > Hi > > I have a Fast Track Pro USB audio device which has stopped capturing sound > using ALSA. > > When trying to capture, arecord claims the format S24_3BE is not supported: > > $ arecord -D hw:Pro,1 -f S24_3BE -c2 -r48000 -t wav test.wav > Recording WAVE 'test.wav' : Signed 24 bit Big Endian in 3bytes, Rate 48000 > Hz, Stereo > arecord: begin_wave:2480: Wave doesn't support S24_3BE format... > > > but: > > $ arecord --dump-hw-params -D hw:Pro,1 > Recording WAVE 'stdin' : Unsigned 8 bit, Rate 8000 Hz, Mono > HW Params of device "hw:Pro,1": > -------------------- > ACCESS: MMAP_INTERLEAVED RW_INTERLEAVED > FORMAT: S24_3BE > SUBFORMAT: STD > SAMPLE_BITS: 24 > FRAME_BITS: 48 > CHANNELS: 2 > RATE: [8000 48000] > PERIOD_TIME: [1000 10922625] > PERIOD_SIZE: [11 87381] > PERIOD_BYTES: [66 524286] > PERIODS: [2 1024] > BUFFER_TIME: (458 21845250] > BUFFER_SIZE: [22 174762] > BUFFER_BYTES: [132 1048572] > TICK_TIME: ALL > -------------------- > arecord: set_params:1233: Sample format non available > Available formats: > - S24_3BE > > > According to http://alsa.opensrc.org/M-Audio_FastTrack_Pro, I have in > /etc/modprobe.d/fast-track-pro.conf: > > options snd_usb_audio vid=0x763 pid=0x2012 device_setup=0x9 index=5 > enable=1 > > to configure use of 24bit sampling rate. > > Attempting to capture sound through JACK also fails silently (literally: no > error messages, just nothing arriving from system in JACK ports) but I'm > sure it was working a few days ago. The only relevent thing to have changed > since then is a kernel upgrade: linux (3.19.3-1 -> 3.19.3-3) > > System info is here: > http://www.alsa-project.org/db/?f=257c31b8c899be7febffb0a34a8823e36aff2006 > > How can I get arecord working? (then I'll worry about recording in JACK but > I suspect the issues are related) > > > thanks, > > David. > ------------------------------------------------------------------------------ BPM Camp - Free Virtual Workshop May 6th at 10am PDT/1PM EDT Develop your own process in accordance with the BPMN 2 standard Learn Process modeling best practices with Bonita BPM through live exercises http://www.bonitasoft.com/be-part-of-it/events/bpm-camp-virtual- event?utm_ source=Sourceforge_BPM_Camp_5_6_15&utm_medium=email&utm_campaign=VA_SF _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
