Thanks to CL.'s comment I came up with this:
sox -t raw -r 44100 -e signed -b 16 -c 1 raw_audio audio.wav
Question
I'm trying to convert a MIDI
file to a WAV
file, on OS X.
So far, I have this:
fluidsynth -F output_sound soundfont.sf2 note.mid
This creates an output_sound
file, however, that file is not WAV, it seems to be in sint16
format given that I get this output:
~ $ fluidsynth -O help
FluidSynth version 1.1.6
Copyright (C) 2000-2012 Peter Hanappe and others.
Distributed under the LGPL license.
SoundFont(R) is a registered trademark of E-mu Systems, Inc.
-O options (audio file format):
's16'
Is there an easy way to convert the output_sound
to a WAV
file in Terminal (or in any scriptable fashion)?
Solution 3
Thanks to CL.'s comment I came up with this:
sox -t raw -r 44100 -e signed -b 16 -c 1 raw_audio audio.wav
OTHER TIPS
There is a simpler way than using SoX: when FluidSynth is installed with libsndfile support, it outputs WAV by default. This is how Homebrew installs FluidSynth by default:
$ brew install fluid-synth
...
$ fluidsynth -T help
FluidSynth runtime version 2.0.8
Copyright (C) 2000-2019 Peter Hanappe and others.
Distributed under the LGPL license.
SoundFont(R) is a registered trademark of E-mu Systems, Inc.
-T options (audio file type):
'aiff','au','auto','avr','caf','flac','htk','iff','mat','mpc','oga','paf','pvf','raw','rf64','sd2','sds','sf','voc','w64','wav','wve','xi'
auto: Determine type from file name extension, defaults to "wav"
I found the easiest solution to be timidity:
timidity input.mid -Ow -o out.wav
If you use homebrew it's also trivial to install:
brew install timidity