Audio processing sub-modules
Optional Audio Processing for Densité Cards

Grass Valley offers additional audio processing power through the use of optional sub-modules that mount on compatible cards. Dolby Digital (AC-3) and Dolby E encoding/decoding, automatic loudness control (ALC) and upmixing can be added for optimal integration of system components while reducing both power and rack space. These audio processors can be easily installed after initial commissioning, reducing initial roll-out costs. Compatible products can host up to two expansion sub-modules adding complex audio processing functions to existing capabilities.

All sub-modules
  • Interchangeable modules for maximum flexibility and easy maintenance
  • Reduces hosting card complexity and cost
  • Up to 2 advanced audio functions per sub-module
  • Up to 2 sub-modules per card (XVP-3901 series)
  • Can be added later to minimize initial roll-out costs
  • High-density: minimizes space and power requirements
Dolby processing sub-modules
  • Agile decoding of both Dolby Digital and Dolby E bitstreams
  • PCM automatic pass-through on decoder
  • Power and space efficient compared to "pizza box" designs
  • Dolby metadata handling and restitution (Dolby E decoding)
  • Encoding of up to 8 channels of PCM audio on up to 8 different programs (Dolby E)
  • Dolby certified operation
Automatic Loudness Control sub-modules
  • Automatic loudness control option for Densité interfaces smoothes 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
  • (All Dolby modules are Dolby Laboratories certified)
All modules
  • Dimensions: 116 x 51 mm (4.55 x 2 in.)
  • Edge connector: As per Jedec MO-116 SIMM (72 pins)
  • Weight: ~0.125 kg (0.25 lbs.)
Dolby E Encoder characteristics
  • Audio coding algorithm: Proprietary Dolby E
  • Video frame rates: 29.97 fps, 25 fps, 23.98 fps, 24 fps, 30 fps
  • Output bitstream: As per Dolby E specification
  • Encode capacity: Up to 8 channels of audio
  • Up to 8 programs
  • Bit depth: 16, 20 or 24 bits
  • Encoding latency: 1 video frame
Dolby Digital Encoder characteristics
  • Audio coding algorithm: Dolby Digital
  • Output bitstream: ETSI TS 102 366, ATSC A/52b
  • Encode capacity: Up to 6 channels of audio
  • Encoding latency: 187 ms
Dolby Decoder characteristics
  • Decoding capabilities: Dolby Digital or Dolby E
  • Input bitstream: ETSI TS 102 366, ATSC A/52b or Dolby E
  • Decode capacity:
    • Up to 8 channels of audio (Dolby E)
    • Up to 8 programs (Dolby E)
  • Decoding latency:
    • Dolby E: 1 video frame
    • Dolby Digital: 32 ms


Product Compatibility
Expansion modules Description ADX-3981 AMX-3981 DAP-1781 EAP-3101 FRS-3901 EAP-3901 XVP-3901 series 







(1 slot) (1 slot) (1 slot) (1 slot) (1 slot) (1 slot) (2 slots)
MOD-DOLBY-DEC-2 Dolby E and Digital (AC-3) decoder Yes Yes Yes Yes Yes Yes Yes
MOD-DOLBY-ENC-E Dolby E encoder Yes Yes Yes Yes Yes Yes Yes
MOD-DOLBY-ENC-D-2 Dolby Digital (AC-3) encoder Yes Yes Yes Yes Yes Yes Yes
MOD-LA-DUP-701 Upmixing using Linear Acoustic Technology UpMAX Yes Yes Yes Yes Yes Yes Yes
MOD-LA-ALC-2 2 channel ALC licensed by Linear Acoustic Yes Yes No Yes Yes Yes Yes
MOD-LA-ALC-6 6 channel ALC licensed by Linear Acoustic Yes Yes No Yes Yes Yes Yes
MOD-LA-ALC-8 8 channel ALC licensed by Linear Acoustic Yes Yes No Yes Yes Yes Yes
MOD-LA-ALC-2-DUP 2 channel ALC and upmix licensed by Linear Acoustic Yes Yes No Yes Yes Yes Yes
MOD-LA-ALC-6-DUP 6 channel ALC and upmix licensed by Linear Acoustic Yes Yes No Yes Yes Yes Yes
MOD-LA-ALC-8-DUP 8 channel ALC and upmix licensed by Linear Acoustic Yes Yes No Yes Yes Yes Yes

Audio Processing Sub-Modules: Optional Audio Processing for Densité Cards: Datasheet

Grass Valley, a Belden Brand, offers additional audio processing power through the use of optional submodules that mount on compatible cards.

Dolby Digital (AC-3) and Dolby E encoding/decoding, automatic loudness control (ALC) and upmixing can be added for optimal integration of system components while reducing both power and rack space.

These audio processors can be easily installed after initial commissioning, reducing initial roll-out costs. Compatible products can host up to two expansion sub-modules adding complex audio processing functions to existing capabilities.

Posted Jul 25 2016 (GVB-1-0350B-EN-DS) File Size: 714.2 KB

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