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Marshall Electronics AR-DM3X, Operating Instructions Manual

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Marshall Electronics AR-DM3X Operating Instructions Manual Download Page 11

14

DOLBY Decoding (continued)

DOLBY Downmix Configurations

The following table shows the available downmix configurations and corresponding channel assignments for common
DOLBY E program configurations (PGM) and DOLBY DIGITAL audio coding modes (ACM).

Channel Assignments

DOLBY Type

PGM / ACM

Available Presets

Ch. 1

Ch. 2

Ch. 3

Ch. 4

Ch. 5

Ch. 6

Ch. 7

Ch. 8

1/1 5.1

L

R

C

C

L

R

-

-

1/1 Lo+Ro/Lo+Ro

C

C

C

C

C

C

-

-

1/1 L/R

L

R

-

-

-

-

-

1/1 C/C

-

-

C

-

-

-

-

-

1/1 Ls/Rs

-

-

-

-

L

R

-

-

1/1 LFE/LFE

-

-

-

C

-

-

1/1 Lt/Rt

L

R

C

C

L

R

-

-

5.1

1/1 L+C/R+C

L

R

C

-

-

-

-

-

1/2 5.1

L

R

C

C

L

R

-

-

1/2 Lo+Ro/Lo+Ro

C

C

C

C

C

C

-

-

1/2 L/R

L

R

-

-

-

-

-

-

1/2 C/C

-

-

C

-

-

-

-

-

1/2 Ls/Rs

-

-

-

-

L

R

-

-

1/2 LFE/LFE

-

-

-

C

-

-

-

-

1/2 Lt/Rt

L

R

C

C

L

R

-

-

1/2 L+C/R+C

L

R

C

-

-

-

-

-

2/2 Stereo Ch.

-

-

-

-

-

-

L

R

5.1+2

2/2 L+R/L+R

-

-

-

-

-

-

C

C

1/2 Stereo Ch.

L

R

-

-

-

-

-

-

1/2 L+R/L+R

C

C

-

-

-

-

-

-

2/2 Stereo Ch.

-

-

-

-

-

-

L

R

2+2

2/2 L+R/L+R

-

-

-

-

-

-

C

C

1/3 Stereo Ch.

L

R

-

-

-

-

-

-

1/3 L+R/L+R

C

C

-

-

-

-

-

-

2/3 Stereo Ch.

-

-

-

-

-

-

R

L

2/3 L+R/L+R

-

-

-

-

-

-

C

C

3/3 Stereo Ch.

-

-

R

L

-

-

-

-

3x2

3/3 L+R/L+R

-

-

C

C

-

-

-

-

1/8 Mono Ch.

C

-

-

-

-

-

-

-

2/8 Mono Ch.

-

C

-

-

-

-

-

-

3/8 Mono Ch.

-

-

C

-

-

-

-

-

4/8 Mono Ch.

-

-

-

C

-

-

-

-

5/8 Mono Ch.

-

-

-

-

C

-

-

-

6/8 Mono Ch.

-

-

-

-

-

C

-

-

7/8 Mono Ch.

-

-

-

-

-

-

C

-

DOLBY E

8x1

8/8 Mono Ch.

-

-

-

-

-

-

-

C

Default

L

R

C

C

L

R

-

-

Lo+Ro/Lo+Ro

C

C

C

C

C

C

-

-

L/R

L

R

-

-

-

-

-

-

C/C

-

-

C

-

-

-

-

-

Ls/Rs

-

-

-

-

L

R

-

-

LFE/LFE

-

-

-

C

-

-

-

-

Lt/Rt

L

R

C

C

L

R

-

-

3/2L

L+C/R+C

L

R

C

-

-

-

-

-

Default

L

R

C

-

L

R

-

-

Lo+Ro/Lo+Ro

C

C

C

-

C

C

-

-

L/R

L

R

-

-

-

-

-

-

C/C

-

-

C

-

-

-

-

-

Ls/Rs

-

-

-

-

L

R

-

-

Lt/Rt

L

R

C

-

L

R

-

-

3/2

L+C/R+C

L

R

C

-

-

-

-

-

L/R

L

R

-

-

-

-

-

-

2/0

C/C

C

C

-

-

-

-

-

-

DOLBY DIGITAL

1/0

C/C

C

-

-

-

-

-

-

-

C: Center (Left S Right Speaker)

L: Left Speaker

R: Right Speaker

11

Note:

If a channel pair contains a DOLBY encoded signal, the corresponding LED bar graphs will not show a signal level.

DOLBY signal presence is indicated by the illumination of the blue LED below each channel pair. See the

DOLBY

Encoded Signals

section on

page 13

for more information.

Basic Operation (continued)

Audio Monitoring

■  Monitor Modes 

Audio channels from the selected input module can be monitored through the stereo speakers in three ways: one
channel at a time (mono), two channels at a time (stereo), or as a stereo mix of multiple channels (5.1, 7.1, etc.).

Single Mode

Press the

SINGLE

button to monitor one channel at a time. The selected channel will be reproduced through both

speakers equally. Use the

LEFT

and

RIGHT

buttons to select amongst channels 1-8. Pressing the

9-16

button

will enable the

LEFT

and

RIGHT

buttons to select amongst channels 9-16.

Pair Mode

Press the

PAIR

button to monitor two channels as a stereo pair. The first channel of the pair will be reproduced

through the left speaker, and the second through the right speaker. Use the

LEFT

and

RIGHT

buttons to select

amongst channel pairs 1/2, 3/4, 5/6, and 7/8. Pressing the

9-16

button will enable the

LEFT

and

RIGHT

buttons to

select amongst channel pairs 9/10, 11/12, 13/14, and 15/16.

Downmix Mode

Press the

Mix

button to monitor a stereo downmix of multiple audio channels. Press the

9-16

button to downmix

channels 9-16.

Three downmix configurations are available:

5.1

,

7.1

, and

4L+4R

. The channel assignments in each downmix

configuration are based on the DOLBY recommended track layout for Left, Right, Center, LFE (Low Frequency
Effect), Left Surround, and Right Surround channels. Press the

LEFT

and

RIGHT

buttons to select amongst these

configurations.

The following table shows how each audio channel is monitored through the speakers for each of the available
downmix configurations:

Preset

Ch. 1

Ch. 2

Ch. 3

Ch. 4

Ch. 5

Ch. 6

Ch. 7

Ch. 8

5.1

L

R

C

C

L

R

-

-

7.1

L

R

C

C

L

R

L

R

4L+4R

L

R

L

R

L

R

L

R

C:

Center (Left S Right Speaker)

L:

Left Speaker

R:

Right Speaker

■  Channel-Assign Indicator LEDs 

In all monitor modes and downmix configurations, the

Channel-Assign Indicator LED

directly below each channel’s

signal presence indicator or bar graph indicates how that channel is currently being monitored through speakers.

The following table shows the LED color indicates channel assignment:

LED Color

Channel Assigment

Orange

Left S Right Speaker

Green

Left Speaker

Red

Right Speaker

(No Illumination)

(Muted)

Summary of Contents for AR-DM3X

Page 1: ...nsumer This warranty does not apply to the product exterior or cosmetics Misuse abnormal handling alterations or modifications in design or construction void this warranty No sales personnel of the seller or any other person is authorized to make any warranties other than those described above or to extend the duration of any warranties on behalf of Marshall Electronics beyond the time period desc...

Page 2: ...R Input Module Inputs 4 x AES EBU Balanced 110Ω XLR F via DB 25 Connector Outputs 4 x AES EBU Balanced 110Ω XLR M via DB 25 Connector Passive Loop Through Formats Professional and Consumer SPDIF Audio Coding PCM DOLBY E DOLBY DIGITAL AC 3 Sample Rates 44 1kHz 48kHz DB 25 Pinout Tascam Standard Pinout Mogami GOLD AES TD DB25 XLR 05 Break Out Cable Included ARDM AA 8XLR Input Module Inputs 8 x Analo...

Page 3: ...Power Output Left Right RMS 4Ω 8W 15W Peak Peak Acoustic Output 100dB SPL Headphone Power Output 150 mW AR DM22 B Speaker Power Output Left Right RMS 4Ω 10W 14W Peak Peak Acoustic Output 104dB SPL Headphone Power Output 150 mW ELECTRICAL AR DM21 B Power Consumption Less than 45W Voltage Requirement 24 VDC AR DM22 B Power Consumption Less than 45W Voltage Requirement 24 VDC MECHANICAL AR DM21 B Rac...

Page 4: ...UT 18 Dolby Module 18 ARDM D552 18 Module Installation 19 Input Output Module Installation 19 Dolby Module Installation 20 Specifications 22 AR DM1 B Audio Monitor 22 Input Output Modules 23 Warranty 24 21 Module Installation continued DOLBY Module Installation continued 4 After removing the top panel of the audio monitor locate the DOLBY module slot labeled J12 on the main board 5 Insert the ARDM...

Page 5: ...les provide unrivaled flexibility up to four I O modules can be installed in a single AR DM3X X audio monitor each module with up to 16 channel inputs providing a possible 64 channels per audio monitor Input choices include balanced unbalanced AES EBU SDI video with embedded audio and balanced analog audio With an optional DOLBY module the AR DM3X X supports decoding and monitoring of DOLBY E and ...

Page 6: ... Note Modules cannot be installed or hot swapped while the audio monitor is powered on Ensure that the audio monitor is powered off before installing or removing modules Audio Monitor Installation The AR DM3X X audio monitor series can be installed in an EIA standard 19 inch rack Alternately the AR DM3X X audio monitor can be placed on any level surface For optimum sound quality the audio monitor ...

Page 7: ...allation for detailed instructions 2 Connect an Audio Source Connect an audio source to the audio monitor Depending on the chosen input module the signal could be SDI video with embedded audio AES EBU digital audio analog audio etc Some modules may require a breakout cable for the appropriate connections See module specifications for details 3 Power On the Audio Monitor Supply power to the audio m...

Page 8: ... Input Modules ARDM AES BNC Features 4 Unbalanced AES EBU Inputs 8 Audio Channel Inputs 4 Passive Loop Through Outputs 8 Audio Channel Outputs Accepts Professional AES EBU and Consumer SPDIF Supports DOLBY Multi Channel Decoding with Optional Module Embedded Metadata Display with AR DM2 L Audio Monitor Operation When using passive the loop through outputs unterminate the corresponding inputs using...

Page 9: ...S alarms or disable for each input module slot and the desired LKFS calculation method selecting specific audio channels Additionally you may set your own LKFS threshold values set to 24 LKFS by default and select which preset channels to use in the LKFS calculation The LKFS threshold value will be shown as a red LED bar when monitoring LKFS via the front panel 9 Rear Panel Features Note AR DM3X X...

Page 10: ...s contain a constant bit stream even when the audio content is silent Such bit stream presence during silence is indicated by red illumination of the first LED segment of the corresponding channel s bar graph This feature is useful in differentiating between an accidentally disconnected cable from silence in the audio programming This feature is not available for analog audio inputs VU PPM Signal ...

Page 11: ...nels at a time stereo or as a stereo mix of multiple channels 5 1 7 1 etc Single Mode Press the SINGLE button to monitor one channel at a time The selected channel will be reproduced through both speakers equally Use the LEFT and RIGHT buttons to select amongst channels 1 8 Pressing the 9 16 button will enable the LEFT and RIGHT buttons to select amongst channels 9 16 Pair Mode Press the PAIR butt...

Page 12: ... any input module If this module is not present the AR DM3X X will indicate DOLBY signal presence with the aforementioned blue LED but will not be able to decode the bitstream into discrete channels Decoding and Monitoring DOLBY Signals Introduction If your AR DM3X X has been configured with the optional ARDM 552 DOLBY Module you will be able to decode and monitor a DOLBY signal on any channel pai...

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