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BM-­‐AV1-­‐E16SHD  
2012
 
Manual
BM-AV1-E16SHD
16 Channel Digital Audio Monitor
User's Guide
Version 2.1 14/01/2013
Version   2 .1  
Page   1  

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Summary of Contents for bel Digital Audio BM-AV1-E16SHD

  • Page 1 BM-­‐AV1-­‐E16SHD   2012   Manual BM-AV1-E16SHD 16 Channel Digital Audio Monitor User’s Guide Version 2.1 14/01/2013 Version   2 .1   Page   1  ...
  • Page 2 BM-­‐AV1-­‐E16SHD   2012   BEL (Digital Audio) Ltd., has made every effort to ensure the accuracy of information contained within this document, which is nevertheless supplied for information purposes only and does not constitute any form of warranty or guarantee. All trademarks acknowledged.
  • Page 3: Table Of Contents

    BM-­‐AV1-­‐E16SHD   2012   Contents       Introduction   ............................  4   Main   f eatures  ............................  5   Front   p anel   r otary   c ontrols   ........................  6   Operation   ..............................  7  ...
  • Page 4: Introduction

    Introduction       The BM-AV1-E16SHD is a 1U high-quality sixteen-channel video/audio monitor with multiple I/O as standard. The unit accepts audio from any one of eight AES input pairs, eight analogue inputs or one of two SDI inputs and produces eight pairs of AES outputs and eight analogue outputs.
  • Page 5: Main   F Eatures

    BM-­‐AV1-­‐E16SHD   2012   Main   f eatures     40 mm video display Eight pairs of unbalanced (BNC) digital audio (AES) inputs and eight balanced line inputs Two auto-sensing SD/HD/3G inputs with loop-through Dolby® Digital or Dolby® E decoder Dolby mix-down program select switch Custom channel mix-downs for de-embedded audio channels and Dolby - independent mode...
  • Page 6: Front   P Anel   R Otary   C Ontrols

    BM-­‐AV1-­‐E16SHD   2012   Front   p anel   r otary   c ontrols   Volume The volume of the speaker and headphone output can be adjusted using this control. Pressing the end of the control will mute the speaker audio. This can also mute the line and analogue outputs.
  • Page 7: Operation

    BM-­‐AV1-­‐E16SHD   2012   Operation     Selecting   s ources     The input source select switch determines which source (Analogue, AES, SDI 1 or SDI 2) is available to the speaker selectors and bargraphs. AES inputs can be at 44.1 kHz or 48 kHz sampling rate.
  • Page 8: Using   T He   D Olby   M Ix   S Witch

    DOLBY MIX switch. Clearly the mix-down of the +1 signals will be a simple mono signal. When the BM-AV1-E16SHD is in any of the P1 to P8 program select modes (or Dolby Down-Mix modes), the stereo audio available on the internal buss is sent to the left and right speakers and to bargraphs 1&2.
  • Page 9: Presets

    BM-­‐AV1-­‐E16SHD   2012   Presets   Three presets are provided these will allow front panel settings to be stored. Each preset can be selected using the button under the video display and they automatically retain their last routing configurations. Version   2 .1   Page  ...
  • Page 10: Rear   P Anel   I Nputs

    Rear   p anel   o utputs     The BM-AV1-E16SHD provides both digital and analogue audio outputs on the rear panel. Eight differential analogue outputs on a 25 way ‘D’ type connector and eight pairs of AES3 on BNC connectors are available.
  • Page 11: Menu

    The characteristics that can be adjusted in the menu are shown below. Top   l evel   m enu   p age   The top level of the menu carries the main areas of operation of the BM-AV1-E16SHD that can be adjusted.
  • Page 12 BM-­‐AV1-­‐E16SHD   2012   Level   M eter   A djustment   Various aspects of the audio level indication can be adjusted here. 1. Amber threshold - The point at which the bargraph changes from green to amber can be adjusted here.
  • Page 13: Line   L Evel   O Utput   A Djustment

    BM-­‐AV1-­‐E16SHD   2012   Line   l evel   o utput   a djustment   The audio currently selected for the two front panel speakers is also available on two XLR connectors on the rear panel. The level of these can be adjusted from this menu. 1.
  • Page 14: Analogue   O Utput   L Evel

    BM-­‐AV1-­‐E16SHD   2012   Analogue   o utput   l evel   The audio currently showing on the 8 bargraphs are directed to 8 analogue outputs on a 25-way ‘D’ connector on the rear panel. The level of these can be adjusted here. 1.
  • Page 15: Dolby   I Nformation

    BM-­‐AV1-­‐E16SHD   2012   Dolby   I nformation   The firmware version of the Dolby decoder card and MetaData information can be accessed from this menu.   Version   2 .1   Page   1 5  ...
  • Page 16: Installation

    BM-­‐AV1-­‐E16SHD   2012   Installation     The BM-AV1-E16SHD is designed to be installed in 19" bays on an equipment tray. Ventilation is by natural convection. Version   2 .1   Page   1 6  ...
  • Page 17: Analogue   A Udio   I Nputs   A Nd   O Utputs

    BM-­‐AV1-­‐E16SHD   2012   Analogue   a udio   i nputs   a nd   o utputs     Description A 1+ A 1- A 2+ A 2- A 3+ A 3- A 4+ A 4- A 5+ A 5- A 6+ A 6- A 7+...
  • Page 18: Specifications

    BM-­‐AV1-­‐E16SHD   2012   Specifications     Audio inputs Digital AES3-id 8 x 75 ohm (BNC connector). Sample rate 44.1/48 kHz. Analogue 8 differential (25-way ‘D’ connector). Clipping +15 dB Audio outputs Digital AES3-id 8 x 75 ohm (BNC connector) sample rate 48 kHz. Analogue 8 differential audio channels, level adjustable (25-way ‘D’...
  • Page 19 BM-­‐AV1-­‐E16SHD   2012   Meters 16 tri-colour LED bargraphs with adjustable colour break points and ballistics. DIN PPM: Overall dynamic range: 55 dB (+5 to -50 dB) Attack time: 10 mSec Fallback: 1.5 Sec per 20 dB decay BBC PPM: Overall dynamic range: (+12 to-12 dB from mark 7 to mark 1) Attack time: 10 mSec Fallback: 2.85 Sec (from mark 7 to mark 1) VU: Overall dynamic range: 23 dB (+3 to -20 dB)
  • Page 20: Version   2 .1   Page

    BM-­‐AV1-­‐E16SHD   2012   Version   2 .1   Page   2 0  ...

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