<p class="warning">
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.<br />
+as A/B, ORTF or NOS microphone recordings, or delay-panned mixes.<br>
When you reduce the with, you are effectively summing two highly
correlated signals with a delay, which will cause <dfn>comb filtering</dfn>.
</p>
straight line, which would indicate that our signal chain does not color the
sound:
</p>
+
<img src="/images/stereo-panner-with-ORTF-fullwidth.png" />
+
<p>
-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.
</p>
+
<p>
Recall that an <dfn>ORTF</dfn> microphone pair consists of two cardioids spaced 17 cm
apart, with an opening angle of 110°.
<p class="note">
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.
</p>
-
-