User Manual

Multichannel Monitoring Tutorial Booklet (M2TB) rev. 3.5.2

Masataka Nakahara : SONA Corporation

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3-4. C

If a visual image is not used, or if an acoustically transparent screen is used, the center speaker should be

placed at the same height as the L/R speakers. If it is important to match the sound and the image, it is

good to place the center speaker slightly above the middle of the screen. This is because most people

appearing in a film will be shot at bust level or standing, so that the mouth from which dialog originates is

usually located in the upper half of the screen. By placing the center channel — which is used mainly for

dialog — in the upper part of the image, we can increase the fusion between the dialog and the image.

[Fig. 26] Height of the center loudspeaker placement : Acoustical transparent screen or without

video images

If an acoustically transparent screen is not used, the center speaker should be placed above or below the

video image. If the center speaker is placed below the video image, it will be easy to align the L/C/R

speakers vertically, allowing you to easily construct an environment with good acoustical playback

response. On the other hand, placing the center speaker above the video image will provide good

matching of the dialog and the visual image, and will be better for the audio-video programs. In this case,

keeping the vertical difference between the L/R speakers and the center speaker to less than 7˚ will make

it easier for L ↔ C ↔ R panning to move the sound image smoothly.

[Fig. 27] Height of the center loudspeaker placement : Video Monitor

Dialog

for Audio with video images

for Audio

7deg. >

Dialog

for Audio

for Audio with video images