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EAP-3901 3G/HD/SD Embedded Audio and Metadata Processor

The EAP-3901 is an advanced embedded audio processor which can simultaneously process up to 32 channels of audio (16 channels of embedded audio from the video plus others generated internally). Functions include down-mixing, proc amp, channel shuffling, mixing and loudness measurement. Options include automatic loudness control (ALC) and dynamic processing (limiter, compressor and expander). The EAP-3901 generates audio/video fingerprints (via an iControl option) to detect and measure lip sync errors in a broadcast facility. The loudness measurement function allows the measurement and logging of up to four audio programs with iControl loudness monitoring software to analyze and report compliance...

FEATURES

Video

  • 3G/HD/SD input
  • Supports 3Gb/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 grey for continuity of embedded audio
  • Flexible HD/SD/URS reference input
  • Minimum processing delay of 8 µs, but additional delay can be added up to 15 frames
  • Bypass relay with EAP-3N01-3SRP-R rear module
  • Compatible with iControl end-to-end A/V fingerprint analyzer for lip sync error detection and measurement
  • Optional optical fiber IO module with EAP-3N01-3SRP-F rear module

Metadata

  • AFD (SMPTE ST 2016), VLI (RP-186) and WSS insertion
  • 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 timecode user bits, they can also be used for automation, user preset recall and loudness reset

Audio

  • 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)
  • Optional on-board automatic loudness control with Grass Valley wideband processing
  • 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)
  • Audio delay adjustments of up to 2 seconds to compensate for lip sync issues
  • 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, 2.970/1.001Gb/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

 

Reference Input
  • Signal:
    • SMPTE ST 170/SMPTE ST 318/ITU 624-4 blackburst
    • SMPTE ST 274/SMPTE ST 296 tri-level sync
  • Return loss: >35 dB up to 5.75 MHz

* Cable length and return loss specifications will be reduced when using the output protected by the bypass relay on EAP-3901-3SRP-R rear. Refer to the manual for more details.

GPIO
  • Signal (3): Contact closure to ground
  • Connector: RJ45
  • 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 in minimum processing delay depending on processing options
  • Audio delay: Up to 2s (1 ms steps)
Electrical
  • Power: 12.5W

ORDERING INFORMATION

Densité 3 frame Description
EAP-3901 3G/HD/SD embedded audio and metadata processor
EAP-3N01-3SRP Single rear connector panel
EAP-3N01-3SRP-R Single rear connector panel with bypass relay
EAP-3N01-3SRP-F Single rear connector panel with fiber connector
Options (software) Description
EAP-3901-OPT-DP Dynamic audio processing option
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
Options (hardware) Description
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.
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 iControl, iControl Solo, RCP-200

DOCUMENTS & DOWNLOADS

DATASHEETS

EAP-3901

The EAP-3901 from Grass Valley is an advanced embedded audio processor which can simultaneously process up to 32 channels of audio (16 channels of embedded audio from the video plus others generated internally). Functions include down-mixing, proc amp, channel shuffling and mixing. Options include automatic loudness control (ALC), dynamic processing (limiter, compressor and expander) and loudness measurement. The EAP-3901 generates audio/video fingerprints (via an iControl option) to detect and measure lip sync errors in a broadcast facility.

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