Apple Soundtrack Pro 2 - Manual (Page 298)

298 Chapter 9 Mixing Surround Sound
Surround Speaker Placement
There are several ways you can arrange 5.1 surround speakers for playback. You can
follow the International Telecommunications Union Operational Bulletin No. 775 or the
“ITU Standard” for 5.1 surround sound. Here are the basic points of this
recommendation:
 Place all the speakers on the same plane. In other words, if you place some speakers
on the floor and mount some on the ceiling, you will defeat the psychoacoustical
benefit of having surround speakers in the first place.
 With the center speaker directly in front, the Left and Right speakers should be
positioned 30 degrees away from center at about a 60-degree angle aiming for a
spot 3 to 6 inches behind the mixer’s (or listener’s) head.
Note: This angle can be reduced to 45 degrees or extended out to 60 or even 90
degrees and still provide satisfactory results.
 Place the surround (rear) speakers at about 110 degrees off center (to the sides and
somewhat behind the listener). To ensure one cohesive soundfield, do not position
these speakers too far to the rear.
Ls Left surround speaker Place to the left and slightly behind your listening position.
L Left speaker Place in front and to the left.
C Center speaker Place on top of or below your viewing screen.
R Right speaker Place in front and to the right.
Rs Right surround speaker Place to the right and slightly behind your listening position.
LFE (LFE) Subwoofer Can be placed anywhere.
L R
LFE
C
Ls Rs
80˚
30˚ 30˚
80
˚