DLA41-43-44_PD.pdf

DLA44/43/41 8 channel (5.1/2.0) digital audio loudness control and upmixer/downmixer unit based on Linear Acoustic algorithms A Synapse® product

COPYRIGHT ©2011 AXON DIGITAL DESIGN BV ALL RIGHTS RESERVED NO PART OF THIS DOCUMENT MAY BE REPRODUCED IN ANY FORM WITHOUT THE PERMISSION OF AXON DIGITAL DESIGN BV.

AUDIO PROCESSING

Block schematic & I/O panel DLA44 – DLA43 – DLA41

AES/EBU IN 1/2 LfRf

SRC

GAIN PHASE & DELAY

SRC

GAIN PHASE & DELAY

5.1 AES/EBU IN 3/4 C/LFE

AEROMAX 5.1 PARAM. EQ

LOUDNESS CONTROL

AUTOMAX-II (AUTO SWITCH) UPMIXING

DLA44 DLA43

DLA44 DLA41

MUX

AES/EBU IN 5/6 LsRs

AES/EBU IN 7/8

SRC

GAIN PHASE & DELAY

SRC

GAIN PHASE & DELAY

AES/EBU OUT 1/2 LfRf

UPMIX SOURCE SELECT

5.1 AES/EBU OUT 3/4 C/LFE

OUTPUT MUX AES/EBU OUT 5/6 LsRs

PAR EQ

Lt/Rt Downmix

AEROMAX 2.0

AES/EBU OUT 7/8 Lt/Rt

LOUDNESS CONTROL

METADATA INPUT

METADATA OUTPUT

ADD-ON DE-EMBED SELECTOR 8 CHANNELS OUT OF 32

GPI INPUT

ADD-ON MULTIPLEXING 8 CHANNELS INTO 32

PLL

µP

1

2

32CH OUT TO MASTER

32CH IN FROM NEXT ADD-ON

32CH OUT TO NEXT ADD-ON

REFERENCE INPUTS

FROM MASTER

32CH IN

QUAD SPEED MULTIPLEXING AUDIO BUS

RACK CONTROLLER

INTERNAL SYNAPSE BUS

BPL11

BPX11

AES/EBU IN 1/2 (LF/RF) AES/EBU IN 3/4 (C/LFE) AES/EBU IN 5/6 (LS/RS) AES/EBU IN 7/8 METADATA IN/OUT AES/EBU OUT 1/2 (LF/RF) AES/EBU OUT 3/4 (C/LFE) AES/EBU OUT 5/6 (LS/RS) AES/EBU OUT 7/8

January 2011

DLA44/43/41

AUDIO PROCESSING

Features Inconsistent DTV audio loudness, or the so-called “loud commercial problem” is the number one complaint of television viewers and it is driving them away. It is clear that with the transition to digital (HD), a simple and cost effective solution is needed right now!

The DLA44/43 is based on third generation audio and loudness management technology by Linear Acoustic. The DLA44 protects your viewers from loudness shifts and loss of surround sound in a simple, cost effective, modular and hot-swap manner next to over 150 other Synapse modules.

The DLA44 accepts three pairs of PCM audio to handle a program stream containing 5.1 and two channel audio. The unit can apply multiband, multistage loudness control and upmixing to the applied audio. Loudness control is provided by the popular AEROMAX algorithm, while upmixing is provided by the air-proven and industry standard UPMAX algorithm. Both technologies are used world-wide to provide consistent and compelling 5.1 channel audio while remaining completely downmix compatible.

The DLA44 also includes the new AutoMAX-II auto-detection algorithm to smoothly and automatically bypass upmixing when applied content is 5.1 channels. The AutoMAX-II algorithm prevents any loss of dialogue or cause of switching artifacts. Upmixing and loudness processing modes can also be controlled by the ACP protocol and Cortex or by GPI contact closures.

A full-time downmixed version of the main program is provided as the fourth AES output pair. This signal can be either a stereo LoRo downmix or an industry standard LtRt surround encoded mix compatible with all legacy consumer decoders.

Selection/swapping of 8 local inputs or ADD-ON inputs.

Input gain, phase and delay adjustments Parametric EQ for the 5.1 input and 2.0 sources 2.0 to 5.1 upmixing (DLA44 and DLA41 only) Downmix from 5.1 5.1 loudness control (DLA44/43 only) 2.0 loudness control of discrete or downmixed 2.0 input (DLA44/43 only) Metadata manipulation of external source to preset levels (DialNorm) Locks to Black & Burst, AES input and Mastercard.

Full control and status monitoring through the front panel of the SFR04/SFR08/SFR18 frame and the Ethernet port (ACP)

Applications

Transmission or ingest loudness control Transmission 2.0 to 5.1 upmixing with transparent 5.1 mode Pre Dolby Digital (plus) or Dolby Pulse processing Automated upmixing in 5.1 applications

January 2011

DLA44/43/41

AUDIO PROCESSING

Ordering information Module: DLA44: 8 channel (5.1/2.0) digital audio loudness control and upmixer/downmixer ADDON card DLA43: 8 channel (5.1/2.0) digital audio loudness control ADD-ON card DLA41: upmixer/downmixer ADD-ON card Standard I/O: BPL11_DLA44: I/O panel for DLA44with unbalanced AES/EBU in and out BPL11_DLA43: I/O panel for DLA43with unbalanced AES/EBU in and out BPL11_DLA41: I/O panel for DLA41with unbalanced AES/EBU in and out Relay bypass I/O: BPX11_DLA44: I/O panel for DLA44with unbalanced AES/EBU in and out and bypass relay BPX11_DLA43: I/O panel for DLA43with unbalanced AES/EBU in and out and bypass relays BPX11_DLA41: I/O panel for DLA41with unbalanced AES/EBU in and out and bypass relays

January 2011

DLA44/43/41

AUDIO PROCESSING

Specifications AES Audio Input Connector Standard Number of Inputs Sampling Rate Resolution Minimum Input/Output Delay Impedance Level

BNC 75 Ohm AES-1992 for synchronous or asynchronous PCM/AES, SMPTE 276M for single ended synchronous or asynchronous PCM/AES 4 32 kHz to 192 kHz Synchronous 48 kHz in Master/ADD-On mode 24 bits when AES inputs selected, 20 bits in Master/ADD-ON mode TBD 75 Ohms 0.2V to 1V nom

AES Audio Output Number of Outputs Connector Resolution Sampling Rate Minimum Input/Output delay Maximum Input/Output offset delay

4 BNC, 24 bits 48KHz synchronous TBD 1300 ms

Reference Input through RRC Number of Inputs Bi-level

Word clock

2 on SFR18, 2 on SFR08 and 1 on SFR04 PAL Black Burst ITU624-4/SMPTE318, Composite NTSC SMPTE 170M 1Vp-p nominal, 75 Ohms terminated through loop AES11-2003 Annex B, not terminated on loop 48kHz

Miscellaneous Weight Operating Temperature Dimensions

Approx. 250g 0 째C to +50 째C 137 x 296 x 20 mm (HxWxD)

Electrical Voltage Power

January 2011

+24V to +30V <10 Watts

DLA44/43/41