On Sat, 18 Apr 2020 11:53:35 +0100 Bill Purvis wrote: > On 18/04/2020 11:05, John Murphy wrote: > > On Sat, 18 Apr 2020 09:55:12 +0100 Will Godfrey wrote: > > > >> On Sat, 18 Apr 2020 09:50:30 +0100 > >> John Murphy <rosegardener@xxxxxxxxxxxxx> wrote: > >> > >>> I use a program which plays regions of various .wav files. Its > >>> output pipes into aplay like: '| aplay -f FLOAT_LE -c 2 -r 48000' > >>> > >>> To where can I pipe its output, instead, to make a new .wav file, > >>> or make a compressed file? Preferably faster than the region(s) > >>> take to play. > >>> > >>> Or, if not, make aplay write to a file instead of playing? > >>> > >>> Thank you. > >>> > >> Use arecord instead. > >> > > Thanks. I saw the -C switch (or arecord), but didn't try it because [...] > You should be able to use sox to do that, specify the input format, and > an output format and it should sort it out. I've not done this for ages, > but it's the sort of thing sox was created for. > > Bill > Looks promising, thanks: SoX can be used in simple pipeline operations by using the special filename `-' which, if used as an input filename, will cause SoX will read audio data from `standard input' (stdin) Can't quite do it though. aplay gets -f FLOAT_LE -c 2 -r 48000 I've tried: | sox -t raw -r 48k -c 2 -L -e float - dump-SOX-test.wav sox FAIL formats: bad input format for `-': data encoding or sample size was not specified | sox -t wavpcm -r 48k -c 2 -L -e float - dump-SOX-test.wav sox FAIL formats: can't open input `-': WAVE: RIFF header not found I'm guessing though really. -- John. _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx https://lists.linuxaudio.org/listinfo/linux-audio-user
