Introduction; Arc: What It Is, And Why We Made It; About This User Guide - Linear Acoustic ARC Installation & User Manual

Automatic realtime control

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Introduction

Congratulations on your purchase of the Linear Acoustic ARC!

The name "ARC" – which stands for "Automatic Realtime Control" – provides a good clue as to what it is: A realtime television

loudness processor featuring APTO®, our latest loudness adaptation algorithm.

Most of the television processors in the Linear Acoustic lineup are designed to process stereo and 5.1-channel audio, upmix

2-channel audio to 5.1, insert audience measurement watermarking, handle Dolby® coded audio, and insert local audio

sources such as EAS. They also use multiband processing to help mitigate spectral inconsistencies and provide a consistent-

sounding output.

In contrast, we designed ARC to simply and effectively process two 2-channel mono or stereo PCM programs, making it ideal

for stereo-only channels in the U.S. as well as regions where support for 5.1-channel and coded audio is not required. The

ATPO algorithm does not employ multiband processing, so the output audio is spectrally identical to the source material.

ARC also provides the ability to easily set a LUFS/LKFS output target loudness value and maximum true peak levels.

ARC offers SDI, AES-3, and AES67 I/O, making it equally at home in today's facilities as well as forward-looking SMPTE ST 2110

installations. Dual internal redundant universal auto-ranging power supplies ensure reliable operation anywhere in the world.

A printed copy of the ARC Quick Start Guide was included with your ARC and will walk you through the rear panel

connections, setting up and configuring network control, basic I/O and program routing, and choosing an appropriate

loudness control preset.

A PDF of the QSG is available for download from our website at

https://www.telosalliance.com/Linear/ARC

This manual will provide more detailed information, including an in-depth description about the individual control

parameters of the APTO processing algorithm inside ARC.

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