[linux-audio-user] Filtering out sounds?

Vince Werber ka1iic at prexar.com
Fri Mar 9 16:12:04 EST 2007

The phase inverting is exactly how it has been done as far as I know.  try 
to phase invert a mono recording and you get no output if the system is 
working right.

So if you could invert the vocals that should take care of most, if not 
all, of the vocals..


On Fri, 9 Mar 2007, Eric Dantan Rzewnicki wrote:

> On Fri, Mar 09, 2007 at 02:25:03PM -0500, Lee Revell wrote:
>> On 3/9/07, terrence at terrencevak.net <terrence at terrencevak.net> wrote:
>>>        This might sound like a *really* odd question, but here goes.  I'm
>>> also looking for a strictly command-line program.  I have some old tapes
>>> that I'm converting to MP3s so I can get rid of the old cassettes.  One of
>>> these is a tape on which I can't stand the sound of my own voice.  If such
>>> a program exists, I'd love to be able to feed my voice into the program
>>> and then have it filtered out, or at least obscured from, the recording.
>>> Am I shooting at the moon or can this be done?
>> I'm sure it's possible to get close - I think this is what karaoke
>> machines do.  No idea how though.
> I thought they relied on the vocal being panned center and did some
> trick with phase inverting to cancel it out ... but, somehow that sounds
> too simple.
> -Eric Rz.

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