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Speaker Setup
All connected speakers are placed in one ore more systems and can be assigned
into several subsystems for control splitting. Each loudspeaker has to be declared
with a rendering type: WFSmain, WFSsupport or subwoofer.
Frontal System
As a recommendation, a minimum of 8 loudspeakers should be installed along the
stage opening, covering its full width of the audience area. The number of
loudspeakers has to be defined depending on loudspeaker placement, loudspeaker
characteristics (sensitivity, directivity), and required Sound Pressure Level.
The speakers should be oriented vertically such that each of them covers a large
portion of the listening area. Wide dispersion speakers in the horizontal plane are
preferred for limiting individual speaker localization. Vertical dispersion should be
defined according to application scenario. Wide vertical dispersion might be
preferable for small rooms. More directive speakers in the vertical direction would be
preferable in larger rooms. All speakers should be facing the audience.
The loudspeaker system is preferably positioned onstage to provide accurate vertical
localization precision and must be accounted for as WFSmain rendering type.
It can be complemented with a secondary speaker array located above stage. It is
recommended to use loudspeakers having an enhanced vertical directivity (<60
degrees). A lower number of speakers can be considered (5 to 9 speakers) to cover
a stage of 15 to 25m width. The speakers should be less directive in the horizontal
direction (>90 degrees dispersion). They should be declared as a separate
subsystem from the lower array and have WFSsupport as rendering type.
The respective contributions of the upper and lower loudspeaker array can then be
adjusted on the Subsystem control panel of the WaveDesigner (page 23).
Spacing
As a general rule, it is recommended that
loudspeaker spacing
does not exceed
half
of the minimum distance of the loudspeakers to the audience
with reasonably
directive speakers (aperture >90°). Using more directive speakers, loudspeaker
spacing may be reduced to favor fusion between contributions of individual
loudspeakers in order to create the sound field wave front.
