Grass valley 8916 DATASHEET

AES 1

AES/EBU

Loopthrough

Controller

LEDs

AES

TX

AES

RX

Processor

Delay

Fixed Delay

Controls

Ancillary

Data

Variable Delay

(from frame sync

RS-232 data)

J1 J2

J3 J4

J5 J6

J7 J8

J9 J10

8900V-R

Loopthru

AES/EBU
Input

Delay From

Frame Sync

AES/EBU

Outputs

AES/EBU
Outputs

10

8916 AES/EBU Autotracking Digital Audio Delay DA

Key Features

Up to 1/2 second delay in 2 ms •
increments

Auto-tracks frame sync delays (8900FSS, •
8981FS)

Seven outputs•

Remote control via Ethernet frame I/F•

The 8916 delays digital audio to adjust for
lip sync errors. Lip sync specifications are
usually expressed as +1/-2 video frames of
audio leading/lagging video. Because human
perception tolerates audio lagging better than
audio leading video, the specification is looser
for audio lag. The 8916 offers tremendous
flexibility with two forms of delay that are
summed—a fixed delay of up to 0.5 seconds
and a variable delay based on the signal input
from one of our video frame synchronizers.
Key applications include adjusting for a large
fixed lip sync error while continuously adjusting
audio delay to match video delay created from
a video frame sync.

Specifications

Supported Frame Types

GeckoFlex with 8900V-R GeckoFlex Video rear module,
Gecko video frames: 8900TX-V, 8900TF-V, 8900TFN-V

Power Rating

3.5 Watts – single slot

Inputs

Standard: AES-3id-1995 and SMPTE 276M

Connector: BNC differential loopthrough

Return loss: >25 dB (0.1 to 6 MHz) transformer

coupling on input eliminates common mode noise

Outputs

Standard: AES-3id-1995 and SMPTE 276M

Number of outputs: Seven

Connector: 75Ω BNC

Return loss: >25 dB (0.1 to 6 MHz)

Intrinsic jitter: <6 ns

Performance

Sample rates: 32 kHz, 44.1 kHz, 48 kHz

Delayed outputs:

•Minimum:3ms@32kHz,2ms@44.1and

48 kHz

•Maximum:510ms

Delay increments: 2 ms

Operating temperature: 0° to 45°C

Humidity range: 0% to 90% non-condensing

Indicators and Controls

Indicators: Input signal present, input data rate, fault,
tracking, power, communication active

Controls: Output delay

Remote: All indicators and controls via frame Ethernet

Ordering Information

This module can be mounted in a GeckoFlex
frame when ordered with the 8900V-R GeckoFlex
Video rear module.

8916

AES/EBU autotracking digital audio delay distribution
amplifier

For detailed specifications, installation, and setup
instructions see:
www.grassvalley.com/docs/modular