AERO.2000 - Audio/Loudness Manager

OVERVIEW

The Linear Acoustic AERO.2000™ provides all of the features and functionality of the AERO.100, but takes things a step further. Handling up to 16 channels of baseband or encoded audio via both AES or HD/SDSDI I/O, it offers AEROMAX® audio processing, upmixing, encoding, and metering for over the air, over the top, and mobile television broadcasts in a 2RU chassis with a front panel that includes a full-color screen, controls, and headphone output.

Base configuration includes a single processing instance in a 5.1+2+2 channel configuration, with or without Dolby® encoding and Nielsen® Watermark encoding. A second processing instance (5.1+2+2 or 2+2+2) with or without the Dolby and Nielsen options can be enabled at any time by simply entering a factory provided key.

Local audio insertion, SAP/DVS with downmix replacement, full-time downmix, and support for Audio Description (warble tone) is provided.

Failover bypass relays on all I/O maintain signal continuity and dual auto-ranging power supplies enable redundancy and worldwide compatibility.

Designed and built in the USA, the 2RU AERO.2000 combines performance, flexibility and convenience.

A full color front panel screen with rotary navigation cluster and headphone output allow for local set-up and adjustment.

 

FEATURES

  • Linear Acoustic AEROMAX loudness and dynamic range control

  • UPMAX® II upmixing with AutoMAX-II™

  • Intelligent Dynamics™ with advanced ITU (AI) Limiter

  • Standard single processing instance in a 5.1+2+2 configuration

  • Available second instance in a 5.1+2+2 or 2+2+2 configuration, with or without Dolby encoding and Nielsen Watermark encoding

  • Automatic downmix output

  • Support for SAP/DVS

  • Local audio/voiceover insertion

  • Optional Audio Description (warble tone)

  • Standard Dolby® Digital (AC-3), Dolby Digital Plus and Dolby E decoding

  • Available Dolby Digital (AC-3), Dolby Digital Plus, and Dolby E encoding

  • 3GHz HD/SD-SDI I/O with included video delay (16 channels)

  • AES I/O with reference input (16 channels)

  • Dual PSU and relay bypass

  • Extensive TCP/IP remote control and HTTP control

 

IN DEPTH

Comprehensive TCP/IP Remote

Provides control over all system settings, processing and coding parameters plus extensive metering of signal presence, processing and coding activity, and audio loudness. System status reports physical I/O details along with system, power supply and environmental health. The remote application also delivers remote audio, including 5.1 channels, to the user so that signal quality can be auditioned anywhere link bandwidth permits. The built-in HTTP server provides for simple get/set control of all parameters and status.

 

Nielsen Encoding

Generates revenue-critical Nielsen NAES II and the new Nielsen Watermarks audience measurement codes. AERO.2000 precisely inserts these signals for maximum code recovery – after audio decoding and processing and before transmission encoding.

 

Linear Acoustic Intelligent Dynamics

The Basics

Linear Acoustic Intelligent Dynamics hybrid metadata processing is a patented hybrid of traditional multiband techniques and metadata. Because it is created during transmission encoding, this metadata requires no operator intervention or special tools and is a new version of the DRC part of the Dolby Digital encoder that has always been there. Except it is now effective and uncomplicated. Featured at no additional cost, Intelligent Dynamics is actually a combination of two revolutionary technologies.

 

How it Works

The first portion of Intelligent Dynamics is the Emmy® award-winning process developed by Linear Acoustic which generates new metadata dynamic range control via traditional processing techniques. This control can be set as permanent, reversible, or anywhere in between. This technology is already present in every AERO.100, AERO.1000, AERO.2000, AERO.asi and AERO.soft product. 

The second portion of the process involves verifying and marking content as compliant upstream. This is accomplished using a portion of the new Dolby Intelligent Media Framework called Evolution which enables measurement and incorporation of authenticated loudness data within the audio at each stage of the content delivery chain from production onwards. Compliant programming can be passed through with minimal or no additional processing, while content that cannot be verified can still be made compliant.

Most current television audio processors control loudness by managing dynamic range in real time. This effectively manages “boundary issues” such as commercials that follow a quiet program segment, but also compromises the impact and excitement of intentionally dynamic scenes because all programming gets some degree of permanent correction.

Audio transmission formats such as Dolby Digital (AC-3) and Dolby Digital Plus (E-AC-3) already incorporate metadata dynamic range control (DRC) profiles, which can provide some control, but these profiles are not ideally suited for broadcast audio and often result in significant over and under processing if other metadata parameters are not correct.

Intelligent Dynamics overcomes these compromises and enables audio to be processed to the degree and permanence dictated by the programming itself. The content effectively and automatically controls the processing and eliminates the need for further downstream changes that could irreparably change it.

 

The Result 

Consumers can now enjoy the benefits of audio that is tailored to their liking using existing Dolby Digital and Dolby Digital Plus decoders. From the default of controlled dynamic range for noisy environments and small television speakers to full dynamic range for well-produced programming and multi-channel home theater systems, Linear Acoustic Intelligent Dynamics delivers the best of both worlds without compromise.

 

SPECIFICATIONS

Processing

  • AEROMAX multistage adaptive wideband and multiband loudness and dynamic range control with ITU-R BS.1770 and EBU R128 loudness metering.

  • Dual UPMAX II two-channel to 5.1-channel upmixers plus main channel downmixing with automatic bypass of discrete content.

  • Linear Acoustic Intelligent Dynamics with Advanced ITU (AI) Limiter

 

Audio Encoding/Decoding

  • Standard Dolby Digital (AC-3), Dolby Digital Plus, and Dolby E encoding

 

Reference

  • 48kHz via AES DARS (or any AES signal applied to the Ref In connector), AES In 1, SDI, or from the internal 48kHz clock (standalone use only).

 

Sample Rate/Resolution/Frequency Response

  • 48kHz, 24-bit, 20Hz to 20kHz below threshold

 

AES I/O

  • Eight main inputs plus reference via 75-Ohm BNC female connectors. Eight main outputs plus encoder output. Eight additional channels of auxillary digital I/O on DB-25 female connector. All digital inputs are 75 Ohm internally terminated, unballanced. Signal levels per SMPTE 276M/ AES-3ID-2001. 

 

HD/SD-SDI I/O

  • Auto-sensing 3GHz HD/SD-SDI (SMPTE 292M/259M) inputs, up to 1080i/60/59.94/50Hz. De-embed up to 16 channels from applied SDI signal, process and/or encode, re-embed up to 16 channels. Supports SMPTE 2020 A and B VANC metadata.

 

Headphone Output

  • 1/4’’ (6.35mm) front panel connector with volume control

  • Parallel GPI/O Parallel Control Port 

  • 25-pin female D connector, 0-5V TTL levels for 8 inputs and 8 outputs; controls simple preset recalls plus voiceover/EAS insertion

 

Serial Metadata Input

  • 9-pin female D connector; 115.2 kbps; pinout per SMPTE 207M (RS-485); Designed to directly interface with Dolby serial metadata (SMPTE RDD6)

 

Ethernet

  • Gigabit Ethernet via RJ45 supports included TCP/IP remote control application; HTTP server included for get/set control of all parameters.

 

Remote Control

  • Windows®-compatible TCP/IP remote control Included application for full setup and control, ITU-R BS.1770 metering for all programs, encoder statistics, and return audio for remote monitoring (network speed permitting). HTTP server allows get/set control from PC Front Panel Controls and Indicators.

 

Front Panel Controls

  • Rotary encoder and control keys plus color display and headphone output.

 

Power Requirements

  • Dual redundant power supplies, each rated at 100-264 VAC, auto-sensing, 50/60 Hz, 175W each maximum

 

Dimensions and Weight

  • 2RU: 3.50”H x 19”W x 17”D (89mm X 483mm X 432mm)

  • Net weight: 13 lbs. (5.9 kg), approximate.

 

Shipping Dimensions and Weight

  • 22”W x 20”D x 9”H (559 x 508 x229 mm)

  • Net weight: 18 lbs. (8.2 kg), approximate.

 

Environmental

  • Fan cooled. Operating: 0 to 50 degrees C, non-operating -20 to 70 degrees C

 

Regulatory

  • North America: Tested to comply with the limits for a class A digital device pursuant to Part 15 of the FCC rules (CFR). Power supplies are UL tested and approved.

  • Europe: Tested to comply with the requirements and harmonised Low Voltage Directive 2006/95/EC and EMC Directive 2004/108/EC as indicated by the affixed CE marking; RoHS and WEEE compliant

 

Warranty

  • Standard Telos Alliance 5-Year Warranty



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