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- Usage: aplay [OPTION]... [FILE]...
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- -h, --help help
- --version print current version
- -l, --list-devices list all soundcards and digital audio devices
- -L, --list-pcms list device names
- -D, --device=NAME select PCM by name
- -q, --quiet quiet mode
- -t, --file-type TYPE file type (voc, wav, raw or au)
- -c, --channels=# channels
- -f, --format=FORMAT sample format (case insensitive)
- -r, --rate=# sample rate
- -d, --duration=# interrupt after # seconds
- -M, --mmap mmap stream
- -N, --nonblock nonblocking mode
- -F, --period-time=# distance between interrupts is # microseconds
- -B, --buffer-time=# buffer duration is # microseconds
- --period-size=# distance between interrupts is # frames
- --buffer-size=# buffer duration is # frames
- -A, --avail-min=# min available space for wakeup is # microseconds
- -R, --start-delay=# delay for automatic PCM start is # microseconds
- (relative to buffer size if <= 0)
- -T, --stop-delay=# delay for automatic PCM stop is # microseconds from xrun
- -v, --verbose show PCM structure and setup (accumulative)
- -V, --vumeter=TYPE enable VU meter (TYPE: mono or stereo)
- -I, --separate-channels one file for each channel
- -i, --interactive allow interactive operation from stdin
- -m, --chmap=ch1,ch2,.. Give the channel map to override or follow
- --disable-resample disable automatic rate resample
- --disable-channels disable automatic channel conversions
- --disable-format disable automatic format conversions
- --disable-softvol disable software volume control (softvol)
- --test-position test ring buffer position
- --test-coef=# test coefficient for ring buffer position (default 8)
- expression for validation is: coef * (buffer_size / 2)
- --test-nowait do not wait for ring buffer - eats whole CPU
- --max-file-time=# start another output file when the old file has recorded
- for this many seconds
- --process-id-file write the process ID here
- --use-strftime apply the strftime facility to the output file name
- --dump-hw-params dump hw_params of the device
- --fatal-errors treat all errors as fatal
- Recognized sample formats are: S8 U8 S16_LE S16_BE U16_LE U16_BE S24_LE S24_BE U24_LE U24_BE S32_LE S32_BE U32_LE U32_BE FLOAT_LE FLOAT_BE FLOAT64_LE FLOAT64_BE IEC958_SUBFRAME_LE IEC958_SUBFRAME_BE MU_LAW A_LAW IMA_ADPCM MPEG GSM SPECIAL S24_3LE S24_3BE U24_3LE U24_3BE S20_3LE S20_3BE U20_3LE U20_3BE S18_3LE S18_3BE U18_3LE U18_3BE G723_24 G723_24_1B G723_40 G723_40_1B DSD_U8 DSD_U16_LE DSD_U32_LE DSD_U16_BE DSD_U32_BE
- Some of these may not be available on selected hardware
- The available format shortcuts are:
- -f cd (16 bit little endian, 44100, stereo)
- -f cdr (16 bit big endian, 44100, stereo)
- -f dat (16 bit little endian, 48000, stereo)
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