man dnoise (Commandes) - reduces noise in a soundfile
NAME
dnoise - reduces noise in a soundfile
SYNOPSIS
dnoise
[options]
-i noise_ref_file -o output_soundfile input_soundfile
csound -U dnoise
[options]
-i noise_ref_file -o output_soundfile input_soundfile
DESCRIPTION
dnoise reduces noise in a sound file using a frequency-domain noise-gating noise reduction scheme.
OPTIONS
- -N<number>
- Number of bandpass filters. Default is 1024.
- -w{0,1,(2),3}
- Filter overlap factor. Do not use with -M
- -M<length>
- Analysis window length. The default is N-1 unless -w is specified.
- -L<length>
- Synthesis window length. The default is M.
- -D<factor>
- Decimation factor. The default is M/8.
- -b<time>
- Begin time in noise reference soundfile.
- -B<sample>
- Starting sample in noise reference soundfile.
- -e<time>
- The end time in the noise reference soundfile. The default is end of file.
- -E<sample>
- The final sample in the noise reference soundfile. The default is end of file.
- -t<threshold>
- The threshold above noise reference, in dB. The default is 30.
- -S{1-5}
- Sharpness of noise-gate turnoff. The default is 1.
- -n<number>
- The number of FFT frames to average over. The default is 5.
- -m<gain>
- Minimum gain of noise-gate when off, in dB. The default is -40.
- -A
- AIFF output
- -W
- WAV output
- -J
- IRCAM output
- -h
- Skip soundfile header. This is not valid for AIFF or WAV output.
- -8
- Use 8-bit unsigned char sound samples.
- -c
- Use 8-bit signed char sound samples.
- -a
- Use alaw sound samples.
- -u
- Use ulaw sound samples.
- -s
- Use short int sound samples.
- -l
- Use long int sound samples.
- -f
- Use float sound samples.
- -R,-V
- Be verbose; print status info.
- -H<number>
- Print a heartbeat character for each soundfile write.
- -- filename
- Write a log to filename.
SEE ALSO
csound(1), pvlook(1), sdif2ad(1), srconv(1).
Csound is documented fully by The Public Csound Manual, available at http://www.lakewoodsound.com/csound/
Csound is also documented by The Alternative Csound Reference Manual, available at http://kevindumpscore.com/docs/csound-manual/
AUTHOR
This manual page was written by Hans Fugal <hans@fugal.net>, for the Debian project (but may be used by others).