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Sound Mode Select the sound effect mode
Bass
Adjust the bass level: increase the analog value to raise
the bass level; decrease the analog value to lower the
bass level (0-100).
Treble
Adjust the treble: The bigger the analog value (0-100), the
higher the treble.
Balance
Adjust the balance between left and right channels: adjust
the analog value leftward to increase the volume of left
channel; adjust the analog value rightward to increase the
volume of right channel (L50-R50). Generally, the balance
is set to 0.
AVC Select enabling or disabling auto volume control
SPDIF Output
Select the digital sound output mode: PCM, RAW, and
OFF.