Neural Loudness Control: Control the loudness, don't squash it.

Neural Loudness Control (NLC) is an advanced loudness leveling technology that accurately measures and regulates the perceived loudness differences in audio. Annoying side-effects of traditional audio processing are eliminated and loudness is controlled without squashing the quality of the audio. The result is audio with a natural, open quality and a consistent audio experience for all viewers.

NLC actually mimics human perception of audio and provides tight control of loudness. Neural's Loudness Measurement detects spectral and density differences, inter-channel relationships and temporal overlaps within the audio signal. After detection, NLC applies the appropriate gain or attenuation to the audio to achieve a user-defined loudness level.

If NLC is used ahead of an AC3 (Dolby Digital) transmission, the target loudness level will also match the DialNorm metadata information, thus providing viewers with a consistent audio experience.

Key Benefits of Neural Loudness Control

• Guarantees a consistent viewer experience despite variations in consumers' equipment
• Adheres to the ITU BS.1770 loudness recommendation, and--more importantly--agrees with your viewer's perception of loudness
• Uses the same loudness control for stereo and 5.1 surround content
• Manages loudness without a "squashed" or compressed sound
• Corrects loudness while preserving the original equal loudness curve
• Using look-ahead technology, makes large gain corrections imperceptible

Neural Loudness Control and Neural Surround

Neural Loudness Control can also be used with Neural Surround audio imaging products. Refer to the UpMix+NLC, DownMix+NLC and MultiMerge+NLC pages for more information.

Applications

DTV facilities, Production studios, Ingest Points, Mobile Production. Commonly used in front of STL paths, Dolby-E or AC-3 encoders.

Configurations

The Neural Loudness Control system is available in different configuration:

• NLC 2.0: Stereo Loudness Control
• NLC 5.1: Multi-channel Loudness Control
• NLC 2.0+5.1: Stereo and Multi-channel Loudness Control
• NLC 4x2.0: 4 Simultaneous Stereo Loudness Control

Ordering Information