Avenue 8500 Composite / SD Legalizer and Video Processing Frame Sync

The 8500 module is a composite Legalizer, Proc Amp, TBC and Frame Sync. The Legalizer is a predictive clipper which insures signal levels will not exceed those permitted in the composite domain. While the Legal setting automatically puts in values to insure signals will not exceed composite legal limits, selecting Custom allows the you to set a range of clip values.

Noise Reducer Option

The optional 8520 Noise Reducer removes unwanted noise and artifacts with is motion- and scene-adaptive filtering. Several forms of noise reduction are employed to ensure the best possible performance. Recursive Temporal Noise filtering includes Simple Recursive, Motion Adaptive and Motion Adaptive with Impulse Filters. Controls are provided for maximum signal-to-noise improvement and for noise threshold. These can be set manually or run in automatic mode. The combination of the 8500 module and the 8520 noise reducer is perfect for MPEG compression preprocessing and satellite or ENG feeds.

Uncompromised Pictures

Whether your input is standard definition SDI Digital Component, Analog Composite or Analog Component, the 8500 handles it with precision and accuracy. The SDI input is carried at full uncompressed bandwidth throughout the entire module, and EDH monitoring of the digital input alerts you to any incoming problem. Analog inputs are 4x oversampled at 12 bits of resolution. Composite signals are decoded using an adaptive comb filter. Complete control over signal levels is provided.

Digital and Analog Outputs

With both SD SDI and 12 bit analog inputs (composite, component, or S-Video [Y/C] formats), the 8500 is easily integrated into any hybrid facility. The 8500 simultaneously outputs both SDI digital component and 12 bit analog composite.
Outputs are fully timed to your house reference, including the subcarrier and ScH phase of the composite output. The analog output is constructed at 8 x oversampling with 12 bits of quantizing resolution. On loss of input, the output can mute to black or freeze on the last good frame of video.

Rock Steady TBC/Frame Synchronizer

Input video is synchronized to your house reference by an agile TBC/Frame Synchronizer. Even noisy and jittery analog sources are faithfully tracked to provide a steady, genlocked output. Robust signal handling ensures proper time base correction for virtually any source, even a consumer VHS machine. Select the SDI input and the 8500 is a serial digital frame sync.

Complete Proc Amp Functions

The 8500 has a full-featured Proc Amp for adjustment of every signal parameter. Proc controls include Video and Chroma Gain, NTSC-style hue rotation, Black Balance, and pedestal. Black and White clips can be set to prevent excessive signal excursions.

A Detail Enhancer recovers information that has been lost due to poor frequency response in upstream systems. Certain values represented in serial digital component may be illegal in the PAL or NTSC composite domains. The Predictive Composite Clipper mode identifies picture elements that would be illegal in analog composite, and limits color saturation and luminance excursions. You can be confident that the work you’re doing in digital component will look its best in composite.

Selective (toothed) vertical blanking lets you choose to pass or strip content in the vertical interval on a line-by-line and field-by-field basis. To help optimize the settings in the Proc Amp, a Split Screen mode allows you to compare the processed output with the original material.

Audio Options

A four or eight channel audio sub module can be added to the main 8500 module. Either the 8415 or 8510 can be added to accommodate audio I/O, channel shuffling and mixing. The 8500 module passes embedded audio and Dolby without an audio sub module.

Total Control

Because the 8500 is an Avenue module, every function and parameter can be controlled from the Avenue Control System. Memory registers can be used to save the complete configuration of the module, making it easy to change instantly between different configurations. Any combination of Express Panels, Touch Screens and PCs can be used to control the 8500. The Express Panel is especially well suited for use with the 8500.