Audio configuration advanced tab – smpte-302m lpcm – Cobalt Co9992-4ENC-4K-HEVC Software-Defined Broadcast Encoder User Manual

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If the channel is configured for 5.1 Surround operation, the following additional parameters
become available:



LFE Channel:

This control allows for the LFE channel to be disabled.



Dolby Surround EX Mode:

Select from drop-down menu; options are

Not Indicated,

Dolby Surround EX Disabled,

Dolby Surround EX Enabled



LFE Low Pass Filter:

Select the check box to enable the LFE low-pass filter.



Surround 90-deg Phase Shift:

Select check box to enable a 90-degree phase shift in the

surround channels.



Surround 3dB Attenuation:

Select check box to enable 3dB attenuation in the surround

channels.



Downmix Preference:

Select from drop-down menu; options are

Not Indicated

Pro

Logic

, and

Stereo



Lo/Ro Center Mix Level:

Enter the value of the left only/right only down-mix from a

multi-channel to a two-channel output that is compatible for stereo or mono reproduction.



Lt/Rt Center Mix Level:

Enter the value of the left total/right total down-mix from a

multi-channel to a two-channel output that is compatible for stereo or mono reproduction.



Lo/Ro Surround Mix Level:

Enter the value of the left only/right only down-mix from a

multi-channel to a two-channel output that is Dolby Surround compatible.



Lt/Rt Surround Mix Level:

Enter the value of the left total/right total down-mix from a

multi-channel to a two-channel output that is Dolby Surround compatible.

Audio Configuration Advanced Tab – SMPTE-302M LPCM