Re: [Alsa-user] arecord: begin_wave:2480: Wave doesn't support S24_3BE format

[David W. <reg...@d-...>]

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. <reg...@d-...
> <mailto:reg...@d-...>>:
> 
> 
>     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.
>