I got this error on my Ubuntu system. It stuck me as odd because the script I had made, ran just fine previously.
sox soxio: Failed reading `hello-thank-you-for-calling.wav': unknown file type `raw'
Upon searching, I found that for some reason sox lost all it’s available formats.
$ sox
...
SUPPORTED FILE FORMATS: pls m3uThe following installed all the available file formats.
$ sudo apt-get install libsox-fmt-all ... $ sox ... SUPPORTED FILE FORMATS: 8svx aif aifc aiff aiffc al alsa ao au auto avi avr caf cdda cdr cvs cvsd dat dvms fap ffmpeg flac fssd gsm hcom ima ircam la lpc lpc10 lu m3u m4a mat mat4 mat5 maud mp2 mp3 mp4 mpg nist nul null ogg oss ossdsp paf pls prc pvf raw s1 s2 s3 s4 sb sd2 sds sf sl smp snd sndfile sndt sou sph sw txw u1 u2 u3 u4 ub ul uw vms voc vorbis vox w64 wav wmv wve xa xi
Here is the command my script was running to convert a text2wav file into a GSM encoded file for my Asterisk setup.
sox --show-progress -V1 hello-thank-you-for-calling.wav -r 8000 -c 1 -t gsm hello-thank-you-for-calling.gsm resample -ql
