http://sox.sourceforge.net/
http://sourceforge.net/projects/sox/files/sox/
Generating 5 seconds of 96/24 stereo silence.wav
sox -D -n -r 96000 -b 24 -c 2 silence.wav trim 0 5
Format confirmation:
soxi silence.wav
Input File : 'silence.wav'
Channels : 2
Sample Rate : 96000
Precision : 24-bit
Duration : 00:00:05.00 = 480000 samples ~ 375 CDDA sectors
File Size : 2.88M
Bit Rate : 4.61M
Sample Encoding: 24-bit Signed Integer PCM
Contents confirmation:
sox silence.wav -n stats
Overall Left Right
DC offset 0.000000 0.000000 0.000000
Min level 0.000000 0.000000 0.000000
Max level 0.000000 0.000000 0.000000
Pk lev dB -inf -inf -inf
RMS lev dB -inf -inf -inf
RMS Pk dB -inf -inf -inf
RMS Tr dB -inf -inf -inf
Crest factor - 1.00 1.00
Flat factor 113.62 113.62 113.62
Pk count 960k 960k 960k
Bit-depth 0/0 0/0 0/0
Num samples 480k
Length s 5.000
Scale max 1.000000
Window s 0.050