NLC 5.1 + 2.0: Surround Sound Loudness Control Plus Stereo
Neural Loudness Control 5.1+2.0 processing is the perfect configuration when a 5.1 surround sound mix is accompanied by an independent stereo mix. Common uses are for network programming with SAP, LtRt or Descriptive Video programming.
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
Specifications
| Size | 1 RU |
| Sample Rate | 32kHz-48kHz (AES/EBU, Worldclock-Slave) |
| Number of Available Channels |
- 4 AES-3 Inputs (5.1 Multi Channel) + (2.0 stereo) - 4 AES-3 Outputs (5.1 Multi Channel) + (2.0 stereo) |
| Latency | 64ms @ 48kHz sampling rate |
| Digital Inputs & Outputs (Choose One I/O Configuration) |
- AES/EBU, 75ohm, Unbalanced BNC, with DARS in - AES/EBU, 110ohm, Balanced XLR, in and out via D-SUB breakout cable with Worldclock in, out and through |
| Communication |
- TCP/IP control via Neural Client Software - TCP/IP CCS Protocol (Coming) |
| Power Supply |
- Voltage: 100-240V - 4-2A at 50-60Hz - Connector EMI Suppressed Male |
Ordering Information
| Part # | Description |
| LOUDCTRL-6+2 | NLC Loudness Control for 2.0 and 5.1 Program Audio, unbalanced 75 ohms AES (BNC) interface |
| LOUDCTRL-6+2-B | NLC Loudness Control for 2.0 and 5.1 Program Audio, balanced 110 ohms AES (XLR) interface |