mi niDSP Ltd, Hong Kong /
/ Features and speci fi cations subject to change wi thout pri or noti ce
27
The time delay corresponds to a distance. This distance is shown in cm when the cursor is hovered over the time
delay box. The maximum time delay of 80 ms corresponds to a distance of approximately 27.5 meters (about 90
feet).
Time delay can be calculated from distance using one of the following formulae:
(Time delay in ms) = (Distance in cm) / 34.4
Or:
(Time delay in ms) = (Distance in inches) / 13.54
3.4.7
Invert and mute
Each channel can be inverted in polarity, and individually muted. When either of these options is selected, the
display changes color and the label of the button reflects the current state.
3.5
B
ASS MANAGEMENT
The
nanoAVR_BM
plugin includes a dedicated tab for bass management, named
LFE Mgt
:
When movies are mixed for the cinema, each speaker is specified as a full bandwidth channel—that is, 20 Hz to
20 kHz, although 40 Hz to 18 kHz for the speakers is considered acceptable in cinema and the mixing studio (see
the Grammy paper “
Recommendations For Surround Sound Production
”). The Low Frequency Effects (LFE)
channel is used for high-level low-frequency content and is fed to dedicated subwoofers in order to avoid
overloading the speakers.
In a typical home theatre system, some or all of the speakers are not capable of reproducing frequencies down
to 40 Hz, let alone 20 Hz. The solution is
bass management
, where low frequencies are filtered out from the
speaker channels and sent to the subwoofer instead. While 80 Hz is a common frequency used to separate
content for the subwoofer and speaker channels, the bass management feature allows any frequency to be
used, and any mix of frequencies to be used across different channels.
