Dolby Laboratories DP569 ユーザーズマニュアル

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Model DP569 User’s Manual 
Metadata 
A–4 
Both types of metadata can be examined, modified, or passed through during 
encoding. Table A-1 lists the active metadata parameters and indicates if each 
parameter is informational or control. 
Table A-1 Metadata Parameters 
Extended Bitstream Information parameters are in italics. 
Metadata Parameter  
Informational  Control 
Dialogue Level 
 
Channel Mode 
 
LFE Channel 
 
Bitstream Mode 
 
Line Mode Compression 
 
RF Mode Compression 
 
RF Overmodulation Protection 
 
Center Downmix Level 
 
Surround Downmix Level 
 
Dolby Surround Mode 
 
Audio Production Information 
 
Mix Level 
 
Room type 
 
Copyright Bit 
 
Original Bitstream 
 
Preferred Stereo Downmix 
 
Lt/Rt Center Downmix Level 
 
Lt/Rt Surround Downmix Level 
 
Lo/Ro Center Downmix Level 
 
Lo/Ro Surround Downmix Level 
 
Dolby Surround EX Mode 
 
A/D Converter Type 
 
DC Filter 
 
Lowpass Filter 
 
LFE Lowpass Filter 
 
Surround 3 dB Attenuation 
 
Surround Phase Shift 
 
 
A.2 Dialogue 
Level 
Dialogue level (also known as dialogue normalization or dialnorm) is perhaps the 
single most important metadata parameter. The dialogue level setting represents the 
average loudness of dialogue in a presentation.