User Guide

276 Appendix B, AC-3 Encoding
3 dB
Attenuation
A 3 dB cut to the surround channels of a multi-channel
film soundtrack when transferring to a format for
consumer home theater playback.
Off
Dynamic
Range
Compression
The amount of compression applied when the volume
reaches the Dialog Normalization level. This gives
viewers more control over audio playback so that
anything louder than the dialog level is lowered and
anything lower than the dialog level is raised.
This parameter is related to the Dialog
Normalization parameter, where the Dynamic
Range Compression sets the level of compression
and Dialog Normalization sets the amplitude at
which compression is activated.
None
RF Over
Modulation
Compression
Used for audio that will be decompressed and
broadcast within a certain bandwidth.
Off
AC-3 Parameter Settings
Parameter Definition Recommended Setting