Automatic Loudness Control (ALC)
Advanced Loudness Control Solutions Which Prevent Excessive Audio Jumps

Excessive loudness variation is probably the most common viewer complaint, and it's now something you can eliminate entirely. Our automatic loudness control solutions for our Densité interfaces are designed to address all typical loudness problems, including audio jumps between programs and commercials, without adversely impacting the program content.

Uniquely, Grass Valley offers two distinct automatic loudness control solutions which bring together the very best loudness technologies:

• ALC with Linear Acoustic AEROMAX processing

• ALC with Grass Valley wideband audio processing

Both solutions can be used effectively to address loudness problems across multiple applications, such as broadcast playout, server ingest, production and post-production. However, the best fit solution will depend on an individual facility's particular channel mix and program dynamics, as well as the associated playout workflow and equipment.

  • Automatic loudness control option for Densité interfaces smooths out irritating loudness level differences between program segments and between different channels
  • High quality processing prevents adverse effects to program content
  • Three different processing variants allow selection to best match a facility's content and workflow
  • Multiband or wideband processing
  • Up to 16 audio channels processing capacity
  • Multiprogram support using mono, stereo, 5.1 or 7.1 audio
  • "Set and forget" mode with setting of output target loudness per program
  • Actively managed processing modes, with playout automation driving a bypass mode or different profiles
  • Loudness monitoring according to ITU-R BS.1770
  • Upmixing can be combined with ALC for optimal integration (Linear Acoustic and ALC variants)
  • Manual remote control by iControl, iControl Solo PC GUI or RCP-200 remote panel
  • Now supporting loudness measurement and true-peak limiter according to ITU-R BS.1770-3
See datasheet for technical specifications.
MOD-LA-ALC-2 2-channel ALC licensed by Linear Acoustic
MOD-LA-ALC-6 6-channel ALC licensed by Linear Acoustic
MOD-LA-ALC-8 8-channel ALC licensed by Linear Acoustic
MOD-LA-ALC-2-DUP 2-channel ALC and up mix licensed by Linear Acoustic
MOD-LA-ALC-6-DUP 6-channel ALC and up mix licensed by Linear Acoustic
MOD-LA-ALC-8-DUP 8-channel ALC and up mix licensed by Linear Acoustic
ALC options for XVP-3901 up/down/crossconverter host module *
XVP-3901-OPT-ALC-2 2-channel on-board ALC option by Grass Valley
XVP-3901-OPT-ALC-6 6-channel on-board ALC option by Grass Valley
XVP-3901-OPT-ALC-8 8-channel on-board ALC option by Grass Valley
XVP-3901-OPT-ALC-16 16-channel on-board ALC option by Grass Valley
ALC options for AMX-3981 embedder *
AMX-3981-OPT-ALC-2 2-channel on-board ALC option by Grass Valley
AMX-3981-OPT-ALC-6 6-channel on-board ALC option by Grass Valley
AMX-3981-OPT-ALC-8 8-channel on-board ALC option by Grass Valley
AMX-3981-OPT-ALC-16 16-channel on-board ALC option by Grass Valley
ALC options for ADX-3981 de-embedder *
ADX-3981-OPT-ALC-2 2-channel on-board ALC option by Grass Valley
ADX-3981-OPT-ALC-6 6-channel on-board ALC option by Grass Valley
ADX-3981-OPT-ALC-8 8-channel on-board ALC option by Grass Valley
ADX-3981-OPT-ALC-16 16-channel on-board ALC option by Grass Valley
ALC options for FRS-3901 Frame synchronizer *
FRS-3901-OPT-ALC-2 2-channel on-board ALC option by Grass Valley
FRS-3901-OPT-ALC-6 6-channel on-board ALC option by Grass Valley
FRS-3901-OPT-ALC-8 8-channel on-board ALC option by Grass Valley
FRS-3901-OPT-ALC-16 16-channel on-board ALC option by Grass Valley
ALC options for EAP-3901 embedded audio processor *
EAP-3901-OPT-ALC-2 2-channel on-board ALC option by Grass Valley
EAP-3901-OPT-ALC-6 6-channel on-board ALC option by Grass Valley
EAP-3901-OPT-ALC-8 8-channel on-board ALC option by Grass Valley
EAP-3901-OPT-ALC-16 16-channel on-board ALC option by Grass Valley
ALC options for EAP-3101 embedded audio processor *
EAP-3101-OPT-ALC-2 2-channel on-board ALC option by Grass Valley
EAP-3101-OPT-ALC-6 6-channel on-board ALC option by Grass Valley
EAP-3101-OPT-ALC-8 8-channel on-board ALC option by Grass Valley
EAP-3101-OPT-ALC-16 16-channel on-board ALC option by Grass Valley
ALC options for HCO-1822 change-over
HCO-1822-OPT-ALC-2 2-channel on-board ALC option by Grass Valley
HCO-1822-OPT-ALC-6 6-channel on-board ALC option by Grass Valley
HCO-1822-OPT-ALC-8 8-channel on-board ALC option by Grass Valley
HCO-1822-OPT-ALC-16 16-channel on-board ALC option by Grass Valley
* If upmixing is required, it can be done on separate sub-module.
MOD-LA-DUP-701 Upmixing using Linear Acoustic Technology upMAX

Automatic Loudness Control (ALC): Advanced Loudness Control Solutions Which Prevent Excessive Audio Jumps Datasheet

Posted Oct 17 2014 (GVB-1-0351A-EN-DS) File Size: 1.6 MB

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