RTW SurroundMonitor 10600, Руководство по эксплуатации

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RTW SurroundMonitor 10600 201
RTW SurroundMonitor 10660-VID
E 4.3.1 What is monitored in surround sound analyzer mode?
With the Surround Sound Analyzer signals in 3/1 and 5.1 surround-format can
be displayed as:
- Balance between front and surround channels
- Balance of the front L-C-R channels
- Display of front, side and rear phantom sound sources or correlation
of all channels instead
- Display of dominant sound events, with memory
- Adjustable coordinate system (SPL or loudness)
- Total sound volume indicator for the surround programme
- Surround channel phase meter for low frequencies
- 2-channel audio vectorscope (can be activated/deactivated)
- 10-fold phase correlation display for all channel pairs
- Peak level meters with additional loudness or SPL display
- Display of total loudness or SPL (sound pressure level) with separa-
te bargraph
- Loudness barpraph as specified with ITU standard
The Surround Sound Analyzer gives you an accurately-scaled visual represen-
tation of the relative volume relationships within the overall surround sound.
The interactions of sound levels (loudness or sound pressure), phase cor-
relation and level differences between all five channels contributing to the
overall sound are converted into an immediately comprehensible visual
image. In addition to this, the visual display of the Surround Sound Analyzer
has been designed to ensure that the dynamic behavior of the displays cor-
responds to the subjective acoustic impression, making it possible to under-
stand the balance of your surround programme immediately, at a single
glance. The Surround Sound Analyzer display is based on the loudness (ITU
BS.1770 RLB or RTW method) or the reference sound pressure level, when
the SurroundMonitor 10600/10660-VID and the studio monitoring system are
properly calibrated. The axes of the 45° rotated coordinate system use dB
loudness or dB SPL scales, with a reference mark that is also shown in the
loudness and SPL displays in the peak meters.
Graphical display of overall loudness
Multi-channel display devices often show the relationships between the
individual sound levels that make up a surround signal with circular or pie-
slice graphics. Despite the great popularity of round shapes we have chosen
to use a combination of a polygon and bar graphs in the Surround Sound Ana-
lyzer, because this makes it possible to display more parameters simulta-
neously and with greater clarity. The polygon is generated by combining the
displayed level values on the scales of the 45° coordinate system. When all
channels are set to the same level with a white noise signal the result is a
square, the area of which is a measure of the total sound volume. The distri-
bution of the four quadrants shows the volume distribution in the surround
system. In addition to this the display also takes into account the phase
correlation and the position of possible phantom sound sources.
See Fig. E 4-10, No. 1
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See Fig. E 4-10, No. 1 - 3
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E 4 Display Modes • E 4.3 Surround Sound Analyzer Display