[sdiy] Panning (again)
mr at analogue.org
Thu Dec 24 00:35:24 CET 2020
On Wed, 23 Dec 2020 at 01:55, Brian Willoughby <brianw at audiobanshee.com>
> We're actually directionally deaf for middle frequencies with medium
> wavelengths. Although stereo salesmen were fond of telling you that you
> only need one subwoofer since we're directionally deaf at low frequencies,
> that's actually not a limitation of the human brain (see above). What is
> true is that pan-pot based "multi-mono" mixing produces a sound field that
> has no directional information in the low frequencies. A binaural recording
> - or a modern mix that uses inter channel delays - does not have this
> limitation (so you'll need multiple subwoofers).
OTOH the low frequencies in a typical listening scenario in room acoustics
are sound fields from room mode excitations etc rather than directional
waves, so what is heard is to large extent something unintentional. This is
valid for both recordings made, and sound replayed, in rooms. Perhaps it's
more relevant to talk about "intended information" rather than "stereo
content" or "directional sound" in the bass region. Often there is no
intended directional information there, so a low-frequency mono signal is
appropriate even if the recording had something else.
So, the comments about certain pan laws going "over the top of your head"
Speaking of over the tops of heads - Merry Christmas! *<:-)
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