Extron Electronics SSP 7.1 User Guide - Manual (Page 105)

Glossary
Bass Management — Low frequency sounds are usually better handled by the subwoofer
speaker. Bass Management organizes the low frequency component of designated input
signals, along with the Low Frequency Effects (LFE) information encoded in the source
format and passes that information to a subwoofer (if available). (Also see
Crossover
Frequency , Low Frequency Effects , and Speaker Size .)
Center Image Control — (DTS Neo:6 Music or Cinema) This control attenuates the level of
the front left and right speakers without affecting the level of the center channel to create
a better balance. There are eleven possible settings, from 0 to 10. At setting 0, there is no
attenuation of the right and left front channels, so that the center channel spreads out. At
setting 10, there is maximum attenuation (6 dB) of the right and left front channels, which
allows the center channel to dominate. The default setting for DTS Neo:6 Music is 3; the
default setting for DTS Neo:6 Cinema is 10.
Center Width Control — Pro Logic decoding produces a single center signal that comes
from the center speaker. If there is no center speaker, a “phantom” center image is
produced that is split between the right and left speakers. If right, left, and center speakers
are present, center width control allows variable adjustment of the center image so that it is
heard only from the center speaker, only from the right and left speakers, or from all three
speakers in varying degrees.
Compensation Delay — In a room where speakers are not equidistant from the listener,
sound from the closest speaker reaches the listener before sound from the farthest speaker.
This adjustment delays the signals going to individual speakers: the signal to the speaker
farthest from the listener is not delayed while speakers that are closer to listener, are. This
ensures that the sound from each speaker reaches the listener at the same time.
Crossover Frequency — The crossover frequency sets the boundary below which the low
frequency signals from designated output channels are incorporated into Bass Management.
The Bass Management signal is passed to the subwoofer (if present) and speakers that have
been set to output the signal. (Also see
Bass Management , Low Frequency Effects , and
Speaker Size .)
Dimension Control — This feature alters the ratio of L+R to L-R for two-channel input
signals, which adjusts the sound field towards the front or towards the back. The available
settings are Front, Neutral, or Back. The default setting is Neutral.
Dolby Noise — Dolby noise provides a bandpass-filtered noise, centered at 750 Hz with a
12 dB/octave roll off. This signal is also generated by the SSP 7.1 and is used to set speakers
to the same level when calibrating the room.
Downmix — multiple channel signals are mixed to produce a stereo or mono output signal.
Dynamic Range Compression — This control adjusts the gain applied to Dolby Digital or
DTS listening modes to compress the signal outputs during the decoding process. The three
possible settings are None, Minimum, and Maximum. The default setting is None.
Equalization — The level of different frequency bands can be adjusted to enhance tone,
compensate for differences in individual speaker output and to remove extraneous noise,
feedback, and resonance.
SSP 7.1 • Glossary 99