Note On Auditory Perception - Tannoy KINGDOM ROYAL Manual

A NOTE ON AUDITORY
PERCEPTION
Our hearing mechanism locates natural
sound sources with great accuracy
by using the naturally occurring phase
differences (or arrival times) at middle
frequencies, and intensity differences
at higher frequencies, between each
of our ears. Naturally occurring sounds
pass through the air to the ears at
constant speed (345 metres/second
or 1132 feet/second). All frequencies
travel at the same speed and therefore
a frequency independent time delay is
associated with the distances involved.
(The familiar time delay between a flash
of lightning and the associated clap of
thunder is an example).
Human hearing relies on the constant
nature of the time delay with the
intensity to locate natural sounds
accurately. These Kingdom Royal
loudspeakers can uniquely reconstruct
stereo images and provide excellent
localisation of recorded sounds.
The Tannoy Dual Concentric™ principle
ensures that the source of sound at high
frequencies is on the same axis as the
source of sound at low frequencies.
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The careful design of crossover network
complements the drive unit to provide
a coincident sound source at
frequencies where the human ear
derives phase information for
localisation. The loudspeaker system
exhibits a time delay response that is
in essence independent of reproduced
frequencies. In addition, the amplitude
(or intensity) response is linear, smooth
and consistent. This provides the
correct intensity information to recreate
the original sound stage.