Dolby Laboratories DP569 User Manual

Model DP569 User’s Manual 

Metadata 

A–8 

Six preset DRC profiles are available to content producers: Film Light, Film 
Standard, Music Light, Music Standard, Speech, and None. Each is applied in  
the pattern shown in Figure A-2. All DRC profiles are encoded using a modified  
B-weighted curve. 

Input Level

Low

High

Boost

Range

Null

Band

Centered at
the Dialogue

Level Setting

Cut

Range

Cut

Range

Early

Dialogue Level

Setting

Low

Hi

g

h

Un

ity

Ga

in

O

u

put

Lev

el

Figure A-2 DRC Profile Pattern 

In each case the center of the null band is assigned to the dialogue level parameter 
setting, and the DRC profile is applied in relation to that level. 

• 

Film Light 
Max Boost: 6 dB (below –53 dB) 
Boost Range: –53 dB to –41 dB (2:1 ratio) 
Null Band Width: 20 dB (–41 dB to –21 dB) 
Early Cut Range: –26 dB to –11 dB (2:1 ratio) 
Cut Range: –11 dB to +4 dB (20:1 ratio) 

• 

Film Standard 
Max Boost: 6 dB (below –43 dB) 
Boost Range: –43 dB to –31 dB (2:1 ratio) 
Null Band Width: 5 dB (–31 dB to –26 dB)  
Early Cut Range: –26 dB to –16 dB (2:1 ratio) 
Cut Range: –16 dB to +4 dB (20:1 ratio) 

• 

Music Light (No early cut range) 
Max Boost: 12 dB (below –65 dB) 
Boost Range: –65 dB to –41 dB (2:1 ratio) 
Null Band Width: 20 dB (–41 dB to –21 dB) 
Cut Range: –21 dB to +9 dB (2:1 ratio)