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Ambiophonics
uses room treatment, radical front channel loudspeaker positioning, computer recreation
of real, early reflections and the later reverberant fields, and additional loudspeakers,
strategically placed, to accurately propagate such ambience. Not every audiophile
will be able or willing to do all that I suggest, but as each feature of the Ambiophonic
system is implemented the improvement in realism will be easily audible and clearly
rewarding. Although Ambiophonics does not rely
on decoders, matrices or ambience extraction, it does incorporate commercially
available digital signal processors, which are essentially special-purpose computers,
to recreate the appropriate ambience signals. It is therefore a prime article
of ambiophile faith that while such signal generators are always subject to improvement,
they have already reached an audiophile level of performance if one uses them
Ambiophonically. In Ambiophonic parlance, when
we say "real" we mean that an acoustic space of appropriate size and
stage width has been created that is realistic enough to fool the human ear-brain
system into believing that it is within that space with the performers on stage
clearly delineated in front. The nice thing about Ambiophonics and existing two
channel recordings is that so-called stereo recordings are not inherently stereophonic.
That is, the microphones act like ears. They don't know that their signals are
going to be played back in an untreated room and subjected to cross talk, pinna
angle distortion, and the other ills described below. Thus virtually any two channel
recording of acoustic music, unless panned or multi-mic'ed to death, will respond
well to Ambiophonic processing and reproduction.
The
Ambiophonic techniques produce a sound stage as wide as that seen by the recording
microphones, an early reflection sound pattern that defines the hall size, and
the character of the recording space, the listener's position within that hall,
and a reverberant field that complements the content of the music and the original
recording venue.
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