GRASS VALLEY XIP-3901, Руководство пользователя

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Configuring the XIP - 3901 - UDC - IP v1.2 Application with iControl
Downmix Tab
Downmix Tab
This tab allows you to downmix a 5.1 surround sound signal to a LoRo or LtRt stereo
channel pair. Downmix generates 2 new audio channels that are added to the audio
processing path: DMIX - CH1 to CH2 that can be used as inputs to other audio processing
tabs. See also Overview of XIP - 3901 - UDC - IP Audio Processing , on page 154.
All incoming audio channels, new mixed and upmixed audio channels are available:
This feature requires the XIP - 3901 - UDC - AUD option. See Options Panel , on page 166 for
details about how to activate card options.
LFE Mix Level Set the gain level for the low-frequency effects (LFE) upmix channel.
Possible values are: +10.0 dB, + 9.0 dB, +7.5 dB, +6.0 dB, +4.5 dB, +3.0 dB, +1.5 dB, 0.0 dB, -
1.5 dB, -3.0 dB, -4.5 dB, -6.0 dB, and Mute.
The default level is Muted.
LFE Filter
Frequency
Set the crossover frequency for bass at which:
• Bass program content is filtered to the low-frequency effects (LFE) upmix channel.
• The remaining upper frequency band is filtered to the other upmix channels (left,
right, center, left surround, and right surround).
• The default frequency is 120Hz.
Property Description
Audio Channel Description
Audio 1 - CH1 to CH64 Audio coming from the 1st audio receiver.
Audio 2 - CH1 to CH16 Audio coming from the 2nd audio receiver.
Audio 3 - CH1 to CH16 Audio coming from the 3rd audio receiver.
Audio 4 - CH1 to CH16 Audio coming from the 4th audio receiver.
Mixer - CH1 to CH2 Mixed audio channels.
Upmix - CH1 to CH6 Upmixed audio channels.