Doug Crompton on 26 Jan 2006 17:24:04 -0000 |
Ok... thanks for your help that worked fine.... wget, mpg321, sox infile -b -r 8000 outfile The final result was a 8k rate 8 bit file. It is voice only. This is to be sent over a radio communications channel and the quality is fine except for one thing. Either in the original encoding or rate change, or both, the background or silence noise is to high to do what I want to do. The recording purposely has a no speaking period but the noise floor is to high for my broadcast equipment to recognize it. I need to filter, remove all sound below a certain level. I do not think low/high pass will work but rather sensing a period of silence below a certain level and inserting pure silence. Sox has a noise filtering mode but it requires knowing where there is already silence and then doing a second pass. Since I want to do this from the command line unattended I don't think this would work. Any ideas? Doug ___________________________________________________________________________ Philadelphia Linux Users Group -- http://www.phillylinux.org Announcements - http://lists.phillylinux.org/mailman/listinfo/plug-announce General Discussion -- http://lists.phillylinux.org/mailman/listinfo/plug
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