#sox /tmp/warning1.gsm

sox: SoX v14.0.1
Failed: Not enough input filenames specified
Usage summary: [gopts] [[fopts] infile]... [fopts] outfile [effect [effopts]]...
SPECIAL FILENAMES:
-               stdin (infile) or stdout (outfile)
-n              use the null file handler; for use with e.g. synth & stat
GLOBAL OPTIONS (gopts) (can be specified at any point before the first effect):
--buffer BYTES  set the buffer size (default 8192)
--combine concatenate  concatenate multiple input files (default for sox, rec)
--combine sequence  sequence multiple input files (default for play)
-h, --help      display version number and usage information
--help-effect NAME  display usage of specified effect; use `all' to display all
--interactive   prompt to overwrite output file
-m, --combine mix  mix multiple input files (instead of concatenating)
-M, --combine merge  merge multiple input files (instead of concatenating)
--plot gnuplot|octave  generate script to plot response of filter effect
-q, --no-show-progress  run in quiet mode; opposite of -S
--replay-gain track|album|off  default: off (sox, rec), track (play)
-R              use default random numbers (same on each run of SoX)
-S, --show-progress  display progress while processing audio data
--version       display version number of SoX and exit
-V[LEVEL]       increment or set verbosity level (default 2); levels are:
                  1: failure messages
                  2: warnings
                  3: details of processing
                  4-6: increasing levels of debug messages
FORMAT OPTIONS (fopts):
Format options only need to be supplied for input files that are headerless,
otherwise they are obtained automatically.  Output files will default to the
same format options as the input file unless otherwise specified.
-c, --channels CHANNELS  number of channels in audio data
-C, --compression FACTOR  compression factor for output format
--comment TEXT  Specify comment text for the output file
--comment-file FILENAME  file containing comment text for the output file
--endian little|big|swap  set endianness; swap means opposite to default
-r, --rate RATE  sample rate of audio
-t, --type FILETYPE  file type of audio
-x              invert auto-detected endianness
-N, --reverse-nibbles  nibble-order
-X, --reverse-bits  bit-order of data
-B/-L           force endianness to big/little
-s/-u/-U/-A/    sample encoding: signed/unsigned/u-law/A-law
  -a/-i/-g/-f   ADPCM/IMA ADPCM/GSM/floating point
-1/-2/-3/-4/-8  sample size in bytes
-v, --volume FACTOR  volume input file volume adjustment factor (real number)
SUPPORTED FILE FORMATS: 8svx aif aifc aiff aiffc al alsa au auto avr cdda cdr cvs cvsd dat dvms fssd hcom ima ircam la lpc lpc10 lu m3u maud nist nul null pls prc raw s1 s2 s3 s4 sb sf sl smp snd sndt sou sph sw txw u1 u2 u3 u4 ub ul uw vms voc vox wav wavpcm wve xa
SUPPORTED EFFECTS: allpass band bandpass bandreject bass chorus compand dcshift deemph dither earwax echo echos equalizer fade filter flanger highpass key ladspa lowpass mcompand mixer noiseprof noisered oops pad pan phaser polyphase rabbit repeat resample reverb reverse silence speed stat swap synth tempo treble tremolo trim vol
effopts: depends on effect