PROCEDE SONORE A CANAUX EN DISPOSITION CIRCULAIRE

3-CHANNEL CIRCULAR SOUND METHOD

Abrégé français

L'invention concerne un système sonore à trois canaux en disposition circulaire, des enregistrements individuels étant effectués sur trois canaux, au moyen de trois microphones disposés à équidistance sur un cercle et orientés vers l'intérieur, et restitués, de manière correspondante, au moyen de trois haut-parleurs disposés à équidistance sur un cercle et orientés vers l'extérieur.

Abrégé anglais

The invention relates to a 3-channel circular sound system, wherein individual recordings are recorded on 3 channels by means of 3 microphones, which are arranged equidistantly in a circle and are directed inward, and are played back accordingly by means of 3 loudspeakers, which are arranged equidistantly in a circle and are directed outward.

Revendications

CLAIMS: CHANNEL CIRCULAR SOUND METHOD
1. A 3-channel circular sound recording and reproduction system,
characterized in that
spatial sound processing such as recording and reproduction
is always to be performed in a circle about its focal point in the
3-channel format.
2. Sound recording system according to Claim 1,
characterized in that
the sound recording is performed with 3 microphones whose
membranes are directed towards the center, towards the source of
the sound, and arranged in a circle at distances of 120° (Fig. 1),
or with 6 microphones at 60° and 9 microphones at spaces of 40°.
3. Sound reproduction system according to Claim 1,
characterized in that
the sound reproduction of acoustic instruments and
loudspeakers takes place with their resonating bodies arranged in
a circle in the middle of the room and with the sound directed
towards the outside (Fig. 2).
4. Sound reproduction system according to Claim 1,
characterized in that
the sound reproduction of acoustic instruments and
loudspeakers takes place with their resonating bodies arranged in
a circle at the periphery of the room with the sound directed
towards the inside (Fig. 3).
5. Sound reproduction system according to Claim 1,
characterized in that
the sound reproduction of acoustic instruments and
loudspeakers takes place with their resonant bodies combined in a
circle of the region of the room, with the sound directed towards
the inside and towards the outside.

Description

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1. 3-Channel circular sound method
2.1 The conventional stereo and its multi-channel stereo formats
like Surround, THX and others, work in the quadrangular / square
spatial arrangement. In a recommended position, the listener is
positioned towards the front, in opposition to the left, right
stereo signal. In altered positions, the reproduction would not be
optimally audible.
2.2 The new 3-channel circular sound system differs substantially
from known formats. Its optimum effect range is in a circle from
the focal point outwards everywhere in the space. During sound
recordings as well as sound reproduction, the people involved can
move around because the sound is distributed in a circle / sphere.
Even at a low reproduction volume, the new format gives the
listener the feeling of being part of the resonant body. It is
supposed to establish, in combination with future image pro-
jections, the optimum sound and image/object creation and
development in a technically environmentally friendly manner.
A) Sound recording:
A.1. Individual recordings are made with 3 (or 6 or 9) microphones
on 3 channels. Their membranes are arranged towards the center,
towards the source of the sound, in a circle at 120 angles (Fig.
1). For 6 microphones, the angles are at 60 .
B) Reproduction
3.1. In the 3-channel format, loudspeakers are arranged in the
center of the space with the membranes directed outward on 3
segments at 120 angles (Fig. 2), 6 segments at 600 angles and 9
segments at 40 angles.
B.2. At the circle of the outer zone, the loudspeakers are
directed with their membranes towards the inside and distributed
over 3 and more segments in a circle at equal distances (Fig. 3).
3.3. Depending on the size and type of the space, the space can be
divided into several zones from the center outwards. In the zones,

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the membranes of the loudspeakers are directed inwards and
outwards and the loudspeakers are distributed over 3 and more
segments in a circle (all around) at equal distances.