Ensemble Designs 9670 Audio Automatic Gain and Loudness Control and 9690 Audio Compliance and Monitoring Software - Manual (Page 5)

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Avenue 9670 - page 5
LevelTrack™ Audio Loudness Control AGC Software Option
LevelTrack™ Loudness Control: An Audio Loudness AGC
Software Option for Avenue Systems
Overview
The LevelTrack Audio Loudness Control Automatic Gain Control (AGC) Software option adds an
operator configurable audio level management system to Avenue signal processing modules.
LevelTrack Loudness Control will correct mismatched audio levels between different program sources
or segments within a program. Errors of this type are regrettably common due to inconsistencies
between different providers and program elements.
LevelTrack Loudness Control will automatically monitor the levels in up to 16 audio channels. Based
upon the history in each channel, LevelTrack Loudness Control applies gradual changes to prevent
the audio level from dropping below or exceeding user programmable thresholds. The operator can
apply this automatic level control to an individual channel, stereo pair, or a Dolby™ Surround group. By
adjusting the overall level of the signal rather than masking the errors with compression, LevelTrack
Loudness Control will not upset the internal dynamics of the program material.
LevelTrack Loudness Control provides operator control over the following parameters:
• audio target level and spread
• transition time
• maximum gain and attenuation
This flexibility allows the operator to customize LevelTrack Loudness Control to suit the specific audio
level challenges in a particular installation. The operator can adjust all of these parameters through the
Avenue Control System. LevelTrack Loudness Control operates downstream of the manual audio level
adjustments that are already provided in Avenue modules. This allows the automatic feature to assist
the operator when needed without needing to be enabled or disabled.
The LevelTrack Loudness Control product is available through a software license and does not require
any additional hardware.
The following Avenue Modules can be used with LevelTrack Audio Loudness Control AGC Software:
• 7555 HD/SD Video Processing Frame Synchronizer
• 7660 HD/SD Embedder, Disembedder and Data Inserter
• 7660-XV HD/SD Embedder, Disembedder and Data Inserter – Additional Video Outputs
• 9550 3G/HD/SD Video Processing Frame Synchronizer
• 9550-XA 3G/HD/SD Video Processing Frame Synchronizer – Additional Audio Outputs
• 9600 3G/HD/SD Embedder, Disembedder and Data Inserter
• 9600-XV 3G/HD/SD Embedder, Disembedder and Data Inserter – Additional Video Outputs
Note: Modules require software version 2.2.10 or higher and Avenue PC must be version
2.0.15 or higher. Software upgrades are free and can be downloaded from our
website. Please see details in the “Software Requirements” on page 6.