X-Git-Url: http://shamusworld.gotdns.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=include%2Fstereo-panner.html;h=b02feb695ad3514c8cef07d7d193c3f6dd368ce5;hb=dfec6899ef2a121ccf2ff1d47008e7ac4844cf70;hp=8c33e2c9072ac4c9d7fa914eae3dc36f19061068;hpb=e6123839d20de4f903ed74820cc087fc8401f625;p=ardour-manual diff --git a/include/stereo-panner.html b/include/stereo-panner.html index 8c33e2c..b02feb6 100644 --- a/include/stereo-panner.html +++ b/include/stereo-panner.html @@ -189,7 +189,7 @@

The stereo panner will introduce unwanted side effects on material that includes a time difference between the channels, such -as A/B, ORTF or NOS microphone recordings, or delay-panned mixes.
+as A/B, ORTF or NOS microphone recordings, or delay-panned mixes.
When you reduce the with, you are effectively summing two highly correlated signals with a delay, which will cause comb filtering.

@@ -204,13 +204,13 @@ Since pink noise contains equal energy per octave, the expected readout is a straight line, which would indicate that our signal chain does not color the sound:

+ +

-To simulate an ORTF, we use Robin Gareus' stereo balance -control LV2 to set the level difference and time delay. Ignore the Trim/Gain -— its purpose is just to align the test signal with the 0dB line of the -analyser. + To simulate an ORTF, we use Robin Gareus' stereo balance control LV2 to set the level difference and time delay. Ignore the Trim/Gain—its purpose is just to align the test signal with the 0dB line of the analyser.

+

Recall that an ORTF microphone pair consists of two cardioids spaced 17 cm apart, with an opening angle of 110°. @@ -238,9 +238,7 @@ get to keep the pieces.

Depending on your material and on how much you need to manipulate the width, some degree of comb filtering may be acceptable. Then again, it may not. Listen -carefully for artefacts if you manipulate unknown stereo signals — many +carefully for artefacts if you manipulate unknown stereo signals—many orchestra sample libraries for example do contain time-delay components.

- -