Ensemble Designs BrightEye 30 User Manual
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Ensemble Designs BrightEye 30 User Manual

Audio adc and dac, bi-directional converter
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Audio ADC and DAC,
Bi-directional Converter
E
N S E M B L E
D
E
S
I
G
This user guide provides detailed information for using the BrightEye™ 30
Audio ADC and DAC, Bi-directional Converter unit.
The information is organized into the following sections:
• Product Overview
• Functional Description
• Applications
• Rear Connectors
• Operation
• Front Panel Controls and Indicators
• Using The BrightEye Control Application
• Warranty and Factory Service
• Specifications
• Glossary
BrightEye 30

User Guide

N
S
BrightEye-1
TM
Revision 5.0 SW v1.0.2

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Summary of Contents for Ensemble Designs BrightEye 30

  • Page 1: User Guide

    BrightEye 30 Audio ADC and DAC, Bi-directional Converter User Guide N S E M B L E Revision 5.0 SW v1.0.2 This user guide provides detailed information for using the BrightEye™ 30 Audio ADC and DAC, Bi-directional Converter unit. The information is organized into the following sections: •...

  • Page 2: Product Overview

    BrightEye 30 Audio ADC and DAC, Bi-directional PRODUCT OVERVIEW BrightEye 30 is a flexible audio converter that can function as a two channel bi-directional ADC and DAC, or as a four channel ADC or DAC. With 24 bit pro- cessing, convenient front panel controls, a powerful PC-based configuration tool, and a compact form-factor, the BrightEye 30 is perfect for desktop, post, and broadcast applications.
  • Page 3 AES connectors. In order to access all of the features of the mixer/shuffler, configuration of BrightEye 30 must be done using BrightEye PC or Mac and the unit's USB con- nection. The BrightEye Control application further provides selection between -18 dBFS and -20 dBFS for the digital reference level.
  • Page 4 +4 dBm reference level. In order to access all of the features of the mixer/shuffler, configuration of BrightEye 30 must be done using BrightEye PC or Mac and the unit's USB con- nection. The BrightEye Control application further provides selection between 18 dBFS and -20 dBFS for the digital reference level.
  • Page 5 The LED will light Red if some sort of genlock signal is present but BrightEye 30 is not able to lock to it. BrightEye 30 operates internally at 48kHz sample rate, and reference signals must be compatible with that rate.
  • Page 6 The LED will light red if some sort of genlock signal is present but BrightEye 30 is not able to lock to it. BrightEye 30 operates internally at 48kHz sample rate, and reference signals must be compatible with that rate.
  • Page 7 BrightEye 30 APPLICATIONS The BrightEye 30 can be used for four channel analog to digital or digital to analog conversion, as well as two channel bi-directional conversion. Additionally, the BrightEye 30 can provide two channel sample rate conversion with two channel digital to analog conversion.
  • Page 8 CH 4 Sample Rate Conversion Mode Use BrightEye 30 to convert AES content at 44.1 kHz sampling rate to 48kHz synchronous to a video or digital audio reference. CD or DAT audio playback can then be used in a professional video environment.

  • Page 9: Rear Connectors

    BrightEye 30 REAR CONNECTORS All connections to the BrightEye 30 are made on the rear of the unit. Refer to the illustration below. BrightEye 30 Rear Connectors Power Connection Connect a modular power supply to the 12 volt DC power input connection on the far left of the unit.

  • Page 10: Operation

    BrightEye 30 Audio ADC and DAC, Bi-directional OPERATION Control and operation of the BrightEye 30 is performed from the front panel or with the BrightEye Control application. Some control settings are only available with BrightEye PC or Mac. These parameters NOTE cannot be monitored or controlled with the front panel.

  • Page 11: Adjusting Parameters From The Front Panel

    BrightEye 30 Pwr (Power) Illuminates green when power is applied to the converter and the internal voltage regulator is functioning correctly. ADJUSTING PARAMETERS FROM THE FRONT PANEL Use the Mode, Right Arrow, and Left Arrow buttons to select and adjust parameters from the front panel.

  • Page 12: Using The Brighteye Control Application

    USING THE BRIGHTEYE CONTROL APPLICATION The BrightEye PC and BrightEye Mac applications included on CD-ROM are designed to allow you to configure and control the BrightEye 30 from a personal computer. Installation and instructions for using this software application are given in the PDF manual on disk.
  • Page 13 BrightEye 30 Headroom, 4 dB Headroom, 6 dB Headroom, 8 dB Headroom, or 10 dB Headroom. • Ref Pres – indicates the status of the reference input. This indicator shows: None, 525 Unlocked, 625 Unlocked, AES Unlocked, WClk Unlocked, 525 Lock, 625 Lock, AES Lock, or WClk Lock.

  • Page 14: Warranty And Factory Service

    WARRANTY AND FACTORY SERVICE Warranty Ensemble Designs, Inc. warrants this product to be free from defect in material and workmanship for a period of five years from the date of delivery. During this two year warranty period, Ensemble Designs, Inc. will repair any defective units at Ensemble’s expense if the unit should be determined to be defective after con-...

  • Page 15: Specifications

    BrightEye 30 SPECIFICATIONS AES/EBU Digital Inputs: Number: Two (total of four channels, selectable as inputs or outputs) Type: AES3id Connectorization: Coaxial, 75 Ω Bit Depth: 20 and 24 bit Sample Rate: 30 kHz to 100 kHz (Sample Rate Converted internally to 48kHz)

  • Page 16: Brighteye Power Supply Information

    BrightEye 30 Audio ADC and DAC, Bi-directional BRIGHTEYE POWER SUPPLY INFORMATION Below is a list of power supplies and optional items that may have come with your BrightEye: BEPS BrightEye Individual Power Supply. BEPS6 Spider Power Supply. This powers 6 single high BrightEyes or 3 double high BrightEyes (BrightEye 90 family).
  • Page 17 BrightEye 30 GLOSSARY This is a brief glossary of commonly used terms associated with this product. AES/EBU The digital audio standard defined as a joint effort of the Audio Engineering Society and the European Broadcast Union. AES/EBU or AES3 describes a serial bitstream that carries two audio channels, thus an AES stream is a stereo pair.
  • Page 18 BrightEye 30 Audio ADC and DAC, Bi-directional Component In a component video system, the totality of the image is carried by three separate but related components. This method provides the best image fidelity with the fewest artifacts, but it requires three independent transmission paths (cables).
  • Page 19 BrightEye 30 Error Detection and Handling is a method to verify proper reception of an SDI or HD-SDI signal at the destination. The originating device inserts a data packet in the vertical interval of the SDI signal and every line of the HD signal which contains a checksum of the entire video frame.
  • Page 20 BrightEye 30 Audio ADC and DAC, Bi-directional Interlace Human vision can be fooled to see motion by present a series of images, each with a small change relative to the previous image. In order to eliminate the flicker, our eyes need to see more than 30 images per second. This is accomplished in television systems by dividing the lines that make up each video frame (which run at 25 or 30 frames per second) into two fields.
  • Page 21 BrightEye 30 NTSC The color television encoding system used in North America was originally defined by the National Television Standards Committee. This American standard has also been adopted by Canada, Mexico, Japan, Korea, and Taiwan. (This standard is referred to disparagingly as Never Twice Same Color.)
  • Page 22 BrightEye 30 Audio ADC and DAC, Bi-directional RGB systems carry the totality of the picture information as independent Red, Green, and Blue signals. Television is an additive color system, where all three components add to produce white. Because the luminance (or detail) information is carried partially in each of the RGB channels, all three must be carried at full bandwidth in order to faithfully reproduce an image.
  • Page 23 BrightEye 30 Strictly speaking, YUV does not apply to component video. The letters refer to the Luminance (Y), and the U and V encoding axes using in the PAL composite system. Since the U axis is very close to the B-Y axis, and the V axis is very close to the R-Y axis, YUV is often used as a sort of shorthand for the more long- winded “Y/R-Y/B-Y”.

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