On Sun, 19 Apr 2020 12:29:37 +0200 al3xu5 / dotcommon wrote: > Sat, 18 Apr 2020 09:50:30 +0100 - John Murphy <rosegardener@xxxxxxxxxxxxx>: > > > 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 sox: > > sox source.wav -L -c 2 -r 48000 new.wav trim <start_second> <duration_seconds> > > where: > > -L : little endian > -c 2 : 2-channels stereo > -r 48000 : freq (Hz) > <start_second> : region start (second) > <duration_seconds> : region duration (seconds) > That works a treat. Thank you. sox works so much better when it has an actual file as input that it works just as well without -L -c -r As the region lines I get give the start and end positions, I can use '=' before duration and give it the end position directly like: REGION "Fri0304.wav" 00:00:01.14181 00:00:05.07359 works in sox like: sox Fri0304.wav new.wav trim 1.14181 =5.07359 $ soxi new.wav Input File : 'new.wav' Channels : 2 Sample Rate : 48000 Precision : 16-bit Duration : 00:00:03.93 = 188725 samples ~ 294.883 CDDA sectors File Size : 755k Bit Rate : 1.54M Sample Encoding: 16-bit Signed Integer PCM I should be able to write a script to get the filename and start/end seconds from the region lines and tell sox what to do. Many thanks and best regards to all who have responded. I'll be fine now and I may even try some of the other ways, because they're there. :) -- John. _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx https://lists.linuxaudio.org/listinfo/linux-audio-user
