Dolby Laboratories'
Demonstration and Test Laser Disc
Version 1.0


Encoded using DP561: AC-3 version 4.03

IEC-958 Mode:                 Consumer
Dialnorm:         -31 unless specified
LFE filter:                      120Hz
DC filter:                         off

Bitrate:                      384 kb/s
Sampling Rate:                48.0 kHz
Bandwidth:                    20.3 kHz
Coupling on:                  10.2 kHz
Bitstream:                    original
Copyright flag:                    off
Chapter Contents-Demo Section (02:15) Comments
1 Dolby Digital Trailer For consumer introduction
to the Dolby Surround
AC-3 Laser Disc format.
Follow this with laser disc
demo material of your choice.
2 Introduction to Dolby Surround AC-3
3 5 Voices in 5 Channels
4 Laser Disc Description
5 "Rain Logo"
Stop Code End of demo section.
Chapter Contents-Test Tone Section Mode Comments
6 1 kHz -20 dBFS L/C/R/LS/RS 3/2/.1 Standard reference level.
7 Black
Stop Code > Prepare for high level signals. <
8 1 kHz 0 dBFS L 3/2/.1 Full scale reference level in
each channel, one at a time.
9 Black
10 1 kHz 0 dBFS C
11 Black
12 1 kHz 0 dBFS R
13 Black
14 1 kHz 0 dBFS LS
15 Black
16 1 kHz 0 dBFS RS
17 Black
18 30 Hz 0 dBFS LFE
19 Black
20 30 Hz 0 dBFS L/C/R/LS/RS 3/2 Full scale bass levels in 5
main channels simultaneously.
21 Black
22 30 Hz 0 dBFS L/C/R/LS/RS/LFE 3/2/.1 Full scale bass levels in all
5.1 channels simultaneously.
23 Black
24 3 kHz -20 dBFS C
30 Hz -20 dBFS LFE
1/0/.1 Various channel coding
modes.
25 Black
26 1 kHz -20 dBFS L
1 kHz -20 dBFS R, inverted
30 Hz -20 dBFS LFE
2/0/.1
27 Black
28 1 kHz -20 dBFS L
1 kHz -20 dBFS R, inverted
1 kHz -20 dBFS S square wave
30 Hz -20 dBFS LFE
2/1/.1
29 Black
30 1 kHz -20 dBFS L
1 kHz -20 dBFS R, inverted
1 kHz -20 dBFS LS square wave
1 kHz -20 dBFS RS square wave, inverted
30 Hz -20 dBFS LFE
2/2/.1
31 Black
32 1 kHz -20 dBFS L
3 kHz -20 dBFS C
1 kHz -20 dBFS R, inverted
30 Hz -20 dBFS LFE
3/0/.1
33 Black
34 1 kHz -20 dBFS L
3 kHz -20 dBFS C
1 kHz -20 dBFS R, inverted
1 kHz -20 dBFS S square wave
30 Hz -20 dBFS LFE
3/1/.1
35 Black
36 1 kHz -20 dBFS L
3 kHz -20 dBFS C
1 kHz -20 dBFS R, inverted
1 kHz -20 dBFS LS square wave
1 kHz -20 dBFS RS square wave, inverted
30 Hz -20 dBFS LFE
3/2/.1
37 Black
Stop Code > Prepare for high level signals. <
38 1 kHz 0 dBFS L/C/R/LS/RS 3/2 Full scale reference level in 5
main channels simultaneously.
39 Black
40 Compression Control Test "Gethsemane" 3/2/.1 Compression listening test.
41 Dialog Normalizaton Test "Bistro" 0 dB 3/2/.1 Reference Program.
Gain change & dialnorm offset.
42 Dialog Normalizaton Test "Bistro" +6 dB
43 Dialog Normalizaton Test
1 kHz -20 dBFS L/C/R/LS/RS
30 Hz -20 dBFS LFE
3/2/.1 Dialnorm off, no change.
Dialnorm on, -10 dB change in
output level during chapter.
Stop Code > Prepare for high level signals. <
44 Sweep 3 Hz to 20 kHz 0 dBFS L 3/2/.1 Full level frequency response
sweeps in each channel, one at
a time.
45 Sweep 3 Hz to 20 kHz 0 dBFS C
46 Sweep 3 Hz to 20 kHz 0 dBFS R
47 Sweep 3 Hz to 20 kHz 0 dBFS LS
48 Sweep 3 Hz to 20 kHz 0 dBFS RS
49 Sweep 3 Hz to 120 Hz 0 dBFS LFE
50 3 Hz to 20 kHz 0 dBFS L
3 Hz to 20 kHz 0 dBFS C
3 Hz to 20 kHz 0 dBFS R
3 Hz to 20 kHz 0 dBFS LS
3 Hz to 20 kHz 0 dBFS RS
3 Hz to 120 Hz 0 dBFS LFE
3/2/.1 Full level frequency response
sweeps in all 5.1 channels
simultaneously.
51 5 Channel Noise Sequencer -30 dBFS 3/2 Compare to internal generator.
52 Black
53 Lt/Rt Matrixed Noise Sequencer -30 dBFS 2/0 Compare to internal generator.
54 Black
55 Positive Polarity Pulse 3/2/.1 All channels should be positive.
56 Black
57 Fade from -40 dBFS to -infinity 3/2/.1 D/A converter linearity test.
58 "Even if you Wonder" 5.1-channel mix 3/2/.1 Music for Dolby AC-3 tests.
59 "Even if you Wonder" Lt/Rt mix 2/0 Music for Dolby Pro Logic tests.
60 "Even if you Wonder" Lt/Rt mix
(Lt/Rt flag not set)
2/0 As above, plus check for Lt/Rt
channel status flag action or
channel mode display.
Stop Code



"Dolby", "AC-3", "Pro Logic" and the double-D symbol are
trademarks of Dolby Laboratories Licensing Corporation.