Dolby Laboratories DolbyRemote DP569, Инструкция по установке и эксплуатации, Страница: 19 / 36

DolbyRemote Installation and Operation Dolby Digital Parameters
4-3
designated as two numbers, A/B, with A indicating the number of front channels, and
B indicating the number of rear (surround) channels.
The following table lists all eight modes and defines which input channels are used
for encoding based on the selected mode. Channel names are designated as follows:
Left (L), Right (R), Center (C), Left Surround (Ls), and Right Surround (Rs). Note
that the Ls channel is the surround source for modes having a single surround channel
(2/1, 3/1). In the case of mode 1+1, two completely independent program channels
can be sourced from the L and R inputs (dual mono) and encoded into the output
bitstream. 1+1 mode is not suitable for DVD or DTV applications.
The Audio Coding Mode options available for the DP567 are 1+1 Dual Mono, 1/0
Mono and 2/0 Stereo.
Table 4-1 Audio Coding Modes
Audio Coding Mode Encoded Channels
1+1 (Dual Mono) L, R
1/0 (Mono) C
2/0 (Stereo) L, R
3/0 L, C, R
2/1 L, R, Ls
3/1 L, C, R, Ls
2/2 L, R, Ls, Rs
3/2 L, C, R, Ls, Rs
4.1.5 LFE Enable
LFE Enable determines whether the low frequency effects channel is enabled. This
is dependent on the setting of the audio coding mode and is only active with coding
modes greater than two channels. This option is also not available on the DP567.
4.1.6 Bitstream Mode
Bitstream Mode is an informational parameter that indicates the data information
service of the encoded Dolby Digital bitstream. It does not affect internal Dolby
Digital encoding.
4.1.7 Dialog Normalization
Dialog Normalization allows the user to set the value of dialnorm , a parameter that
tells the decoder how much the average dialogue level of the encoded audio is below
digital full scale. The decoder uses this to normalize the replay level. This means