reduce the resonance effects.
The base monitoring width (also referred to as monitoring angle) is important for both music and film sound reproduction. Monitoring angles from 45 to 60 degrees are commonly used for proper translation and accurate stereo imaging. While the stereo base width will become greater in larger rooms or with greater monitoring distances, in rooms where picture is used as reference the size of the picture will dictate the available width. In general. a stereo base width corresponding to angles of 45 degrees, relative to the left and right loudspeakers, when viewed from the principal seating location, is preferable for mixing sound with picture. Wider monitoring angles up to 60 degrees (are more common for music mixing). Placement optimization should also include locating the speakers in such a way as to put all speakers equidistant from the listening position. This time- aligns the speakers to the monitoring position and improves imaging. A digital delay may be used to achieve similar results.
ITU-R BS.775-1 Recommendation
Many professionals find the
The
FIGURE 2 ITU-R BS.775-1 SPEAKER
DVD authoring.
PLACEMENT RECOMMENDATION
6.INPUTS & CONTROLS (SEE FIGURE 3)
A)XLR - 1/4” (Phone) Balanced Input
•Pin 1 Sleeve (ground)
•Pin 2 Tip (plus)
•Pin 3 Ring (minus).
B) Unbalanced RCA Input
C)Power Indicator LED
D)Input Sensitivity Selector – use the FIXED position when a 200mV referenced signal is delivered to the XLR input or when a 100mV referenced signal is delivered to the RCA input. In order to use the variable gain knob (E), the input gain switch must be set to the VARIABLE position.
NOTE: Pink Noise input signal to give a set output SPL:
“Fixed” = 200mV Balanced (100mV unbalanced) gives 91 dB at 1m “+4dBu” = 1.23V Balanced (615mV unbalanced) gives 91 dB at 1m
E)Variable Input Gain Controller – offers variable gain from
(Note: This control is only effective when the input gain switch (D) is set to the VARIABLE position.)
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