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- Path: ix.netcom.com!news
- From: jlilley@ix.netcom.com (John Lilley)
- Newsgroups: comp.lang.c,comp.lang.c++
- Subject: Re: Looking for "disques vinyle" noise eliminator
- Date: 29 Mar 1996 16:30:46 GMT
- Organization: Netcom
- Message-ID: <4jh37m$scq@dfw-ixnews6.ix.netcom.com>
- References: <1996Mar27.125940.1@eig.unige.ch>
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- X-NETCOM-Date: Fri Mar 29 10:30:46 AM CST 1996
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-
- In article <1996Mar27.125940.1@eig.unige.ch>, guinnard@eig.unige.ch says...
- >
- >I'm looking for a filter application for wave files which takes a .WAV and
- >convert it to a .WAV with the same format (really ?!?!). _BUT_ this filter
- >must eliminate noise from a 33RPM disc (disque vinyle en fracais...).
-
- Um, perhaps this really belongs on a DSP newsgroup, but...
-
- Removing noise from a recording is *not* simple. In general, you
- cannot distinguish "noise" from "sound" (is a cymbal noise?).
- Attempts to do so in commercial productions (like the Beatles on CD)
- were expensive and involved.
-
- That being said, there are some algorithms out there specifically
- for "hiss" removal (which mostly use a form of sliding-bandwidth
- lowpass filter like dolby C), and "pop" removal (which tend
- to dampen percussion a bit). If you cannot find these algorithms
- available for the PC, try a signal-processing newsgroup and you
- will probably find some code for this somewhere...
-
- john lilley
-
-