Tail Width - Lexicon PCM NATIVE HALL Owner's Manual

Tail Width

The reverb tail (all components of the reverb except for early reflections, etc.) is passed through
a simple 2x2 matrix. This provides an encoding of the tail that dramatically changes its spatial
characteristics. The tail can be changed to feel narrower (even down to mono) or wider than
normal stereo. There are values for the parameter to encode the tail in such a way that it
decodes into surround channels.
The parameter operates in the range of 0 to 360 degrees, with an incremental change of 1
degree. The matrix uses Sine/Cosine rules so that power distribution remains constant. This may
be acceptable, even highly desirable, but the mix engineer must fully understand the process
and its implications. It is possible to compromise the mono compatibility of a mix by using this
parameter carelessly.
This is a powerful tool for audio whose release format is two-channel. It is not useful in any other
format. Formats include compact disc and radio/television broadcast. Some of these effects
are clear and noticeable without any sort of decoder. Many are even more dramatic when a
decoder is in place, such as in a home theater. It is strongly recommended that you monitor in
all possible formats (stereo, mono, matrix surround) when using this parameter.
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