Hello,
Sample Champion can do this measurement in real-time using any
soundcard. See here (in the updates about Vr. 2.8, near bottom of the
page) a short overview of the functions:

http://purebits.com/whatsnewv2.html

It can show a Correlation Meter (between -1 to 1) of the 2 channels or
the cross-correlation function of the 2 channels.

Bye,
Paolo

On 29 Jan 2005 06:51:34 -0800, "paologatto"
wrote:

Hello,
Sample Champion can do this measurement in real-time using any
soundcard. See here (in the updates about Vr. 2.8, near bottom of the
page) a short overview of the functions:

http://purebits.com/whatsnewv2.html

It can show a Correlation Meter (between -1 to 1) of the 2 channels or
the cross-correlation function of the 2 channels.

Bye,
Paolo

A correlation factor less than zero is an interesting concept.

d

Pearce Consulting
http://www.pearce.uk.com

wrote:
Is there an effective method for quantifying the correlation between
left and right audio channels, i.e. some software to do it?

There is a plugin in Steinbergs [1] Mastering Edition called PhaseScope
that does this.

[1] http://steinberg.net

Johann
--
GHETTOBLASTRE von mediamrakt sind cool und tiggt und laut mit FIEL
BASS!!! ab::: BESER IST GEHTTOBLASTRE AUS AMERICA!!!!! YO! ITS DA
ORIGINAL!!!! weil es ist mehr laut mehr cool mehr tigggt und hat mehr
BASS!!! YO! ("MC COOL" in )

Very interesting indeed!

A correlation factor of -1 means that the signals have opposite phase
:-)

A correlation factor less than zero is an interesting concept.

Very interesting indeed!

- A correlation factor of -1 means that the signals are the same and
have opposite phase
- A correlation factor of +1 means that the signals are the same have
same phase
- A correlation factor of 0 means that the signals have no similarities
and are not correlated
It's clearly explained in the web page..

:-)

P.

wrote:
Is there an effective method for quantifying the correlation between
left and right audio channels, i.e. some software to do it? The only
method I can find is Sound Forge "Process / Channel Converter" which
has a preset for "Use difference between channels" and tells me my
audio is very near mono, but it does not give a numeric correlation
value.

An X-Y display is usually the easiest way of getting some notion.

You can also use a phasemeter. Or just use an L-R meter.

Why do you want to know this? Are you cutting LPs?
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."