Telestream PRISM MPI, Руководство пользователя

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Application Information
Audio Application
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PRISM MPI-MPX User Manual
indicates positive correlation between the channels, forming a localized
phantom sound source located at the white tic mark. The bar grows to full length
and changes color to yellow as the correlation moves to zero, indicating a wide,
non-localized sound image. The bar changes color to red for adjacent channels
with significant negative correlation. For negative correlations, the ends of the
PSI for the L and R channels continue to grow at a 45° angle while the other PSIs
remain at full length.
– Center-Pairs Phantom Sound Indicator: a fifth PSI at the top of the display shows
potential phantom sources formed by the LC channel pair and the CR channel
pair. If the L, R, and C channels all have the same signal level, the white tic mark
on the bar appears directly above the C level indicator. The white tic mark moves
right or left depending on the relative balance between the three channels. A
short bar to the left of the white tic mark indicates a positive correlation between
L and C. The bar grows as the correlation decreases. Like the L-R PSI, the bar
continues to grow at a 45° angle for negative signal correlations. The bar to the
right of the white tic mark behaves similarly, depending on the C-R correlation.
This PSI indicator uses the same color coding as the other PSI indicators.
Usage Notes
The displays shown here are examples of how the surround sound waveform appears
for some typical signal types.
Uncorrelated signals (example 1): This shows the same level in the L, C, R, Ls, and Rs
channels
Sine wave test tone (example 2): This has the same level in the L,C, R, Ls, and Rs
channels. All signals are in phase, creating phantom sources between the adjacent
channels.