DP564 Multichannel Audio Decoder Appendix A: Metadata
A-22
Lo/Ro Surround Mix Level
This parameter indicates the level shift applied to the surround channels when
downmixing to a Lo/Ro output. When Extended BSI parameters are active, this
parameter is used, and the Surround Mix Level parameter in the universal parameters
is not.
Lo/Ro Surround Mix Level Setting
1.414 (+3.0 dB)
1.189 (+1.5 dB)
1.000 (0.0 dB)
0.841 (–1.5 dB)
0.707 (–3.0 dB)
0.595 (–4.5 dB)
0.500 (–6.0 dB)
0.000 (–999 dB)
Surround EX Mode
This parameter is used to identify the encoded audio as Surround EX™ encoded
material. This parameter is only used if the encoded audio has two surround channels.
An amplifier or receiver with Dolby Digital Surround EX decoding can use this
parameter as a flag to switch the decoding on or off automatically. The behavior is
similar to the Dolby Surround Mode parameter.
Surround EX Setting
Not Indicated
Not Surround EX
Dolby Surround EX
A/D Converter Type
This parameter allows audio that has passed through a particular A/D conversion
stage to be marked as such so that a decoder may apply the complementary D/A
process.
A/D Converter Type Setting
Standard
HDCD