ADX-3981
3G/HD/SD 8 AES Audio & Metadata De-Embedder
The ADX-3981 is an advanced, high-quality audio processor which de-embeds up to eight AES signals at 48 kHz from a 3G/HD/SD video signal. The ADX-3981 can simultaneously process up to 32 channels of audio (16 channels from the embedded audio input plus others generated internally). Functions include downmixing, proc amp, mixing and loudness measurement.
![ADX-3981](/media/ibjmo02q/2023-adx-3981-1920x964.png?anchor=center&mode=crop&width=589&height=331&rnd=133468031543970000)
FEATURES
Video
- 3G/HD/SD input
- Supports 3 Gb/s level A (mapping 1) and level B
- Audio/video de-glitcher to handle video hot switch at the input
- Automatic detection of input video loss and switchover to local gray for continuous audio/video output synchronization
- Flexible HD/SD reference using the internal URS frame reference
- Minimum processing delay of 8 µs, but additional delay can be added up to 15 frames
- Optional optical fiber module
Metadata
- AFD (SMPTE ST 2016), VLI (RP-186) and WSS insertion
- Linear timecode (LTC) embedding into DVITC (SD) or ATC (HD)
- Audio metadata insertion and extraction (SMPTE ST 2020-A)
- RS-422 serial data input and output to carry audio metadata
- 3 GPI I/O that can be inserted or extracted in the TC user bits. They can also be used for automation, user preset recall and loudness reset
Audio
- 8 AES outputs
- Full audio shuffling and mixing on a channel basis
- 32 channels internal audio processing
- Automation capabilities based on audio signal type detection
- Audio 5.1 surround downmix to Lt/Rt or Lo/Ro
- Audio dynamic processor option (compressor/limiter/expander)
- Audio delay adjustments of up to ±2 seconds to compensate for lip sync issues
- Loudness measurement of up to ±4 audio programs and logging with iControl loudness monitoring option
- Loudness compliant to EBU R128-2014, ATSC A/85:2013 (FCC CALM compliant) and ARIB TR-B32 (ITU-R BS.1770-3)
- On-board socket for 1 optional module expansion:
- Dolby E and Dolby Digital decoder
- Dolby Digital and Dolby Digital Plus encoder
- Dolby E encoder
- Linear Acoustic upMAX
- Linear Acoustic AEROMAX automatic loudness control
SPECIFICATIONS
Video Input/Output
- Signal (1):
- SMPTE ST 259-C (270 Mb/s)
- SMPTE ST 292 (1.485, 1.485/1.001 Gb/s)
- SMPTE ST 424 (2.970, 2.970/1.001 Gb/s)
- Supported formats:
- SD: 480i59.94, 576i50
- HD: SMPTE ST 274: 1080i59.94, 1080i50
- HD: SMPTE ST 296: 720p59.94, 720p50
- 3G: SMPTE ST 425 level A (mapping 1), level B: 1080p59.94, 1080p50
- Cable length:
- 300m (984 ft.) Belden 1694A at 270 Mb/s
- 150m (492 ft.) Belden 1694A at 1.485 Gb/s
- 120m (393 ft.) Belden 1694A at 2.970 Gb/s
- Return loss: >15 dB up to 3 GHz
- Jitter:
- HD/SD: <0.2 UI
- 3G: <0.3 UI
Audio Output (8)
- Sampling freq.:48 kHz
- Quantization:24 bits
- AES3
- Level: 2.75 Vp-p
- Impedance: 110Ω balanced
- AES-3id
- Level:1.0 Vp-p
- Impedance:75Ωunbalanced
- Return loss:15 dB at 6 MHz
Reference Input
- Signal (1):Through the URS internal frame reference signal
Optical
- Signal: Refer to SFP module specifications
LTC
- Signal (1):SMPTE ST 12
- Connectors:
- RJ45 (-3SRP rear)
- BNC (-3DRP rear)
- Impedance:<10 kΩ(bridging 600Ω) unbalanced
- Level: 0.3 to 5 Vp-p
GPIO (-3DRP rear)
- Signal (3):Contact closure to ground
- Direction:Bidirectional (application specific)
GPIO (-3SRP rear)
- Signal (2):Contact closure to ground
- Direction: Bidirectional (application specific)
RS-422
- Signal (2): RS-422
- Input level:300 mVp-p (min)
- Output level: 3 Vp-p (min)
- Rate:115,200 Bd
Video Processing Performance
- Signal path:10 bits
- Processing delay (HD): 8 μs (in minimum delay mode)
- Additional delay:Up to 15 frames upon user selection
Audio Processing Performance
- Quantization:24 bits
- Sampling: 48 kHz, synchronous
- Audio latency:2 to 6 ms max in minimum delay depending on processing options
- Audio delay:Up to 2s (1 ms steps)
Electrical
- Power: 12.5W
MEDIA GALLERY
![ADX-3981](/media/ibjmo02q/2023-adx-3981-1920x964.png?anchor=center&mode=crop&width=1422&height=798&rnd=133468031543970000)
![ADX-3981 Block and Rear Diagrams](/media/admdjrmp/2023_adx-3981_block_rear.png?anchor=center&mode=crop&width=1422&height=798&rnd=133468032214600000)
ORDERING INFORMATION
Densité 3 frame | Description |
ADX-3981 | 3G/HD/SD 8 AES audio and metadata de-embedder |
ADX-3981-75D-3SRP | Single rear connector panel, 75Ω Din 1.0/2.3 |
ADX-3981-110-3SRP | Single rear connector panel, 110Ω |
ADX-3981-75-3DRP-F | Double rear connector panel, 75Ω and fiber connector |
ADX-3981-110-3DRP-F | Double rear connector panel, 110Ω and fiber connector |
Options (hardware) | |
SFP-RR-LC | Dual fiber RX (input) cartridge with LC/PC connector |
SFP-TT-S13S13-LC | Dual fiber TX (output) cartridge at 1310 nm with LC/PC connector |
SFP-R-LC | Single fiber RX (input) cartridge with LC/PC connector |
SFP-T-S13-LC | Single fiber TX (output) cartridge at 1310 nm with LC/PC connector |
SFP-RT-S13-LC | Single fiber RX (input) and TX (output) cartridge at 1310 nm with LC/PC connector |
Other types of SFP Optical Plug-In Cartridges may be available for this product. | |
NSH15M | HD-15 to terminal block adapter |
NSH26M | HD-26 to terminal block adapter |
MOD-DOLBY-ENC-E-2 | Dolby E encoder |
MOD-DOLBY-ENC-D-2 | Dolby Digital (AC-3) encoder |
MOD-DOLBY-DEC-2 | Dolby E and Digital (AC-3) decoder |
MOD-LA-DUP-701 | Upmixing using Linear Acoustic Technology upMAX |
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 upmix licensed by Linear Acoustic |
MOD-LA-ALC-6-DUP | 6-channel ALC and upmix licensed by Linear Acoustic |
MOD-LA-ALC-8-DUP | 8-channel ALC and upmix licensed by Linear Acoustic |
Remote control | GV Orbit, iControl, iControl Solo |