RTW SurroundControl 31960 Serie Bedienungsanleitung Seite 275

Examples of the Surround Sound Analyzer's displays
1 | Incoherent noise with same levels in the
channels L, R, LS and RS, set to the refe rence
monitoring sound pressure level. In each case the
correlation is r = 0, phan tom sound sources are
not locatable.
4 | Surround signal with some Center pre sence
(roof). A support microphone would be too do-
minant. A dialog in relation to mu sic would be too
quiet. The width of the PSI lines of the C channel
is a sign of co he rent signal parts in L and/or R
(crosstalk).
SurroundControl 31900/31960 Series
2 | Identical sine wave signal with same le vel in the
channels L, R, LS, RS. The corre lation is r = +1
(outward broken TVI lines), the phantom sound
sources (PSI) are in the middle, similar to a mono
signal.
5 | Surround signal with a low level Center
presence (funnel). When recording music, the
intermixture of a support microphone may enhance
the perceptibility of the C channel in relation to the
channel L and R.
3 | Same as on the left but with the phase of the
left channel rotated through 180°. In the channel
pairs L - R and L - LS each the correlation is
r = –1, there are no phantom sound sources
locatable.
6 | The widely outward broken TVI line bet ween
LS and RS, no spreading of the PSI line and the
correlation level r = +1 in the lower phase meter
indicate that an identical mono sig nal is applied in
both surround channels.
8 | Instruments (Display Modes) | 8.3 | The SSA Instrument
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