Ken Restivo:
The only tool I've found so for that can handle IEEE FLOAT WAV's is
oggenc. Yay Vorbis. But, the FLAC tools, even though they're from the
same developers as Ogg Vorbis, dies horribly, with ERROR: unsupported
compression type 3
I think IEEE floats can't be used in flac, because its a lossless
compressor and that it gurantees not to alter the data. Floats are
probably too hard (probably impossible?) to handle to sattisfy
requirements.
----------------------------------------
Sample Rate : 48000
Frames : 14277625
Channels : 2
Format : 0x00010006
Sections : 1
Seekable : TRUE
Duration : 00:04:57.450
Signal Max : 0.724668 (-2.80 dB)
This is the format that jack_capture produces. It supposedly has
I chose this format as default because its the most common one for audio
processing.
options to save in other bit-depths, which I tried, but they didn't
seem to do anything.
Works here:
kjetil@ttleush ~ $ jack_capture -b 16
Recording to "jack_capture_03.wav". Press <Return> or <Ctrl-C> to stop it.
Please wait while writing all data to disk. (shouldn't take long)
disk thread finished
connection thread finished
kjetil@ttleush ~ $ sfinfo jack_capture_03.wav
File Name jack_capture_03.wav
File Format Microsoft RIFF WAVE Format (wave)
Data Format 16-bit integer (2's complement, little endian)
Audio Data 278528 bytes begins at offset 44 (2c hex)
2 channels, 69632 frames
Sampling Rate 44100.00 Hz
Duration 1.579 seconds
Granted, I can open these files in Audacity or Rezound or Sweep, and with the GUI convert the file to just about anything. However, I dislike GUI's, and I'd like to be able to do this with the commandline tools. Opening 20 WAV files and click-clacking around on menu options is anathaema: the whole process wants to be a 1-liner bash script really.
OK after a bit more experimentation, I solved my own problem.
This is for converting from 32-bit 48000 to redbook CD format:
sox something-32bit.wav -t wav -w -r 44100 something-cd.wav resample -ql
You might want to be careful with sox's resampling... You probably want to
listen to the results, but sndfile-resample or resample are probably
safer program to use instead.
And, for making FLAC's:
sox something-32bit.wav -w -t wav - | flac - > something.flac
jack_capture actually supports flac very conveniently:
"$jack_capture -f flac"
A similar thing works for making mp3's; I just pipe it to lame instead of to flac. Et voila.
I have a script called makemp3.sh that looks like this:
#!/bin/sh
sndfile-convert -pcm32 $1.wav $1o.wav
lame $1o.wav
mv $1o.wav.mp3 $1.mp3
rm $1o.wav
