Grass valley 8916 DATASHEET

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.

8900V-R

J1 J2

J3 J4

AES/EBU

Outputs

		AES/EBU
J5	J6	Outputs

J7 J8

Delay From

Frame Sync

J9	J10
	AES/EBU
	Input
Loopthru

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

			Ancillary
			Data	AES/EBU
	AES 1	AES	Processor	AES
	Loopthrough	RX		TX
				Delay
	Fixed Delay
	Controls
	Variable Delay		Controller	LEDs
	(from frame sync
	RS-232 data)
			Remote

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