mkss — calculate average spectrum for spectral subtraction
mkss [options...] {filename}
mkss is a tool to estimate noise spectrum for
spectral subtraction on Julius. It reads a few seconds of sound data
from microphone input, calculate the average spectrum and save it to a
file. The output file can be used as a noise spectrum data in Julius
(option "-ssload").
The recording will start immediately after startup. Sampling format is 16bit, monoral. If outpue file already exist, it will be overridden.
-freq
Hz
Sampling frequency in Hz (default: 16,000)
-len
msec
capture length in milliseconds (default: 3000)
-fsize
sample_num
frame size in number of samples (default: 400)
-fshift
sample_num
frame shift in number of samples (default: 160)