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junger b40 Operation Manual

4ch digital audio leveller b40 series level magic release 3.0
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4ch digital audio leveller
b46
LEVEL MAGIC
™
release 3.0
LM2

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Summary of Contents for junger b40

  • Page 1 4ch digital audio leveller LEVEL MAGIC ™ release 3.0...
  • Page 3 FOREWORD Thank you for buying and for using the 4-channel Digital Audio Level Processor b46. Not only you have aquired the latest generation of digital dynamic range processing, but also a piece of equipment which is unique in its design and specification. Please read this manual carefully to ensure you have all the information you need to use the 4-channel Digital Audio Level Processor b46.

  • Page 4: Table Of Contents

    CONTENTS 2. Function description ........…. 2.1 Basic description ........... 2.2 Block diagram ..........2.3 Audio signal processing ........ 2.3.1 Gain ............2.3.2 Audio Leveller Level Magic ™ …………. 2.3.3 Limiter ……………........2.3.4 Transparent mode ........ 2.4 The Jünger Audio Dynamics Principle ..2.4.1 Program …………………………...
  • Page 5 6.2 Error messages and trouble shooting ........ 6.3 Initialization the unit ............7. Application notes ..............7.1 B40 series with SDI interface ..........7.2 Basic working modes with SDI ........... 8. Technical specifications ............9. Warranty and service information ...........

  • Page 7: Function Description

    2. FUNCTION DESCRIPTION FUNCTION DESCRIPTION The digital dynamics processor b46 is a professional studio device that is performing automated levelling of digital audio BASIC signals. DESCRIPTION The dynamic range processor principles developed by Jünger Audio enable level managing devices like compressors, AGC and limiters to be produced with exceptionally high audio quality, without coloration, pumping, breathing, distortion or modulation effects sometimes associated with this type of processor.

  • Page 8: Block Diagram

    2. FUNCTION DESCRIPTION BLOCK DIAGRAM page 2-2 operation manual b46, chapter 2 -Function description-...

  • Page 9: Audio Signal Processing

    2. FUNCTION DESCRIPTION All signal processing is done in the digital domain by Texas AUDIO SIGNAL Instruments floating point signal processors. The use of 32 bit word PROCESSING length for calculation ensures that there is no deterioration in signal quality, even if an audio signal with a maximum word length of 24 bit is input into the processing of the unit.
  • Page 10 2. FUNCTION DESCRIPTION Adjustment The Level Magic ™ process needs to be setup in three steps procedure select one of the default presets for your apllication (see preset description in chapter 5) adjust the operation level and peak level referring to standards that are using for your application if the default preset is not giving satisfying results change the parameters indivdually...

  • Page 11: Limiter

    2. FUNCTION DESCRIPTION The static characteristics of the b46 limiter usually refers to a digital 2.3.3 output level of 0 dBFS (dB Full Scale). This is useful for most LIMITER applications of the dynamics processor as the on-following digital recording system is supposed to be balanced down to the final bit. For applications using headroom the output level of can be adjusted within 0 ...

  • Page 12: Program

    2. FUNCTION DESCRIPTION short, with almost inaudible processing - and they are very easy to use. The Jünger Audio dynamics processors work according to a Multi- loop principle, operating with an interaction between several frequency linear control circuits. This is quite different to the popular multiband structure which changes the sound.

  • Page 13: Influence Of Signal Delay Time

    2. FUNCTION DESCRIPTION cases the attack time of the limiter for very short transients is zero. Especially the release time of the control circuit has more influence to the increase of loudness as any other parameter. The ranging of time constants in processing time groups reflects this fact.

  • Page 15: Installation

    3. INSTALLATION REMOTE CONTROL The digital audio level processor b46 can be remote-controlled 3.7.1 by means of parallel GPI contacts. GPI REMOTE use : remote-controlled changeover of presets CONTROL (PARALLEL connector: D-SUB 15pin, female REMOTE) Pin assignments Signal name Logic Functions PRESET1 recall preset1...

  • Page 17: Location Of Parts And Controls

    4. LOCATION OF PARTS AND CONTROLS LOCATION OF PARTS AND CONTROLS 4.1. FRONT PANEL function multi display/ blocks edit section sync / link CONTROL knob, section SELECT and EXIT mains buttons input switch section leveller bypass section limiter section fig1: front panel b46 CONTROL ELEMENTS MODE...
  • Page 18 4. LOCATION OF PARTS AND CONTROLS CONTROL knob selection (push) and adjustment (turn) of processing parameter SELECT/ selection of channels ( while editing process ENTER parameters) selection of utility menus (ENTER) for recall and store of presets exit of adjustment menus and return to level display GAIN selection/adjustment of gain parameter...

  • Page 19: Rear Panel

    4. LOCATION OF PARTS AND CONTROLS 4.2. SDI IN-/ DIGITAL DIGITAL REAR PANEL OUTPUT OUTPUTS INPUTS SERIAL REMOTE GPI REMOTE SYNC IN IN/OUT IN/OUT fig. 2: rear panel b46 POWER INPUT IEC mains input connector 85-264V, 50/60 Hz with integrated fuse REMOTE serial remote interface RS-422 connector:...

  • Page 20: Switches And Jumpers For Configuration

    4. LOCATION OF PARTS AND CONTROLS Some basic settings are to select by switches on the rear panel SWITCHES AND or by switches and jumpers at the internal circuit boards of the JUMPERS FOR unit. These settings can occur general changes for operation CONFIGURATION and should made by qualified engineering staff only.
  • Page 21 4. LOCATION OF PARTS AND CONTROLS The 4-channel processors of b40 series fitted with SDI-interface are compatibel with the standard SMPTE 272M-AB. They CONFIGURATION support 48 kHz synchronous audio sampling with 20 bit word OF SDI INTERFACE length. The standard allows up to four groups each of four mono audio channels.

  • Page 23: Operation

    5. OPERATION OPERATION The use of the digital dynamics processor b46 is very easy. DESCRIPTION OF OPERATIONS The setup or the programming of the digital dynamics processor b46 is made by adjustment of various parameters and settings. The description is made related to the functions in the menus. 5.1 adjustment of parameters 5.2 gain / loudness display 5.3 mode menu...

  • Page 24: Adjustment Of Parameters

    5. OPERATION After selection of one of the utility or function menus by ADJUSTMENT OF pushing any of the EDIT- buttons or the SELECT button one PARAMETERS can adjust displayed parameters. in all menus CONTROL switches between parameter selection and parameter adjustment mode, selected push parameter or value is highlighted by arrows...

  • Page 25: Mode Menu

    5. OPERATION Mode menu shows sync setting and input selection. Adjustments are made by pushing and turning CONTROL MODE MENU knob (see 5.1). Return to level display with EXIT. SYNC< LINK 1 + 2 3 + 4 SYNC MODE: selection of sync signal input CH 1/2 - sync on digital input 1/2 EXT - sync on external sync input...

  • Page 26: Leveller Menu

    5. OPERATION Leveller menu shows leveller settings for selected channel . LEVELLER MENU There are more windows available by pushing EDIT button of LEVELLER section repeatedly. Adjustments are made by pushing and turning CONTROL knob (see 5.1). Return to level display with EXIT. 1.
  • Page 27 5. OPERATION 6. menu >ITU BS.1770< ITU BS.1770: Weighting of the leveller processing according to ITU BS.1770. If turned on, the Loudness Target becomes processing reference (instead of Operating Level). By default the box is changing Operating Level less determine Loudness Target (and vice versa). All measurment definition by ITU (see BS.1770 document for details).

  • Page 28: Limiter Menu

    5. OPERATION Limiter menu shows limiter settings for selected channel . Adjustments are made by pushing and turning CONTROL knob LIMITER MENU (see 5.1). Return to level display with EXIT. PR CH >LIM< THRS PRO -9.0 number of current preset selected channel (change with SELECT) LIM: limiter on/off...

  • Page 29: Utility Menu

    5. OPERATION opening selection UTILITY menus when UTILITY MENU loudness/gain menu is on display. SELECT for opening and selection of utitlity push menus gain display / * loudness loudness display * display available if loudness push ESC for close mode is utility menus and return switched ON! to loudness/gain display...

  • Page 30: Recall And Storage Of Presets

    5. OPERATION All individual settings for the function blocks can be stored as presets. 10 presets are storable into the unit. RECALL AND If the gain display is not visible push ESC button to switch back STORAGE OF to gain display. PRESETS SELECT selection of PRESET menu...
  • Page 31 5. OPERATION If all changes are done push the ESC button to switch back to gain display. SELECT selection of SAVE or EXIT push CONTROL selection of preset number Push turn CONTROL selection of preset number Push Select EXIT for leaving the EDIT menu without saving presets. operation manual b46, chapter 5 -Operation- page 5-9...
  • Page 32 5. OPERATION 5.10 PRESET LIST Parameter Range Setup/ 1…10 Preset TV uni MODE Sync 1/ 2, EXT, Video SETUP 4 schemes PRESET 1+2 & 3+4 MODE Link INPUT AES/SDI* SETUP/ for 1/2 and 3/4 ON/OFF/ SETUP/ INPUT AUTO Transp LEVELLER ON/OFF PRESET ON/OFF...

  • Page 33: Boot Display And Trouble Shooting

    6. BOOT DISPLAY AND TROUBLE SHOOTING BOOT DISPLAY AND T ROUBLE SHOOTING display meaning / explanation BOOT DISPLAY AUDIO LEVEL display of model PROCESSOR C: x.x display of loaded controller software version D: x.x display of loaded dsp software version display error / message remedies...

  • Page 34: Initialization The Unit

    6. BOOT DISPLAY AND TROUBLE SHOOTING Should have remained the device no more operable and/or in the program execution stand, recommends itself an initialization the INITIALIZATION device. THE UNIT During initialization, all storage areas important for the program and registers are loaded with the factory setup and the program is restarted.

  • Page 35: Application Notes

    Each channel can have up to 20 bits of resolution per audio sample. The 4-channel processors of b40 series fitted with SDI-interface are compatibel with the standard SMPTE 272M-A. They support 48 kHz synchronous audio sampling with 20 bit word length.

  • Page 36: Basic Working Modes With Sdi

    7. APPLICATION NOTES For the basic working mode the input of the digital audio processing can be selected between AES/EBU or SDI (serial BASIC WORKING digital video with embedded audio). The processed signals are MODES WITH SDI present at both outputs always - at AES/EBU and SDI. There are two additional working modes using the SDI interface.

  • Page 37: Technical Specifications

    8. TECHNICAL SPECIFICATIONS TECHNICAL SPECIFICATIONS sample rate : 48 kHz digital signal audio data format : 24 bit (AES/EBU), 20 bit (SDI) processing digital DIGITAL IN/OUT in- / outputs AES/EBU connector : XLR,110 Ohm, balanced BNC, 75 Ohm, coaxial input format : AES professional, AES consumer output format : same as input format...
  • Page 38 8. TECHNICAL SPECIFICATIONS HD-SDI technical specifications VIDEO : standard: SMPTE 299M 1,485 Gbit HD-SDI SMPTE 272M–A, C 270 Mbit SD-SDI connection: BNC, 75 Ohm, coaxial signal level: 800mV ±10% equalisation: 130m (Belden 1694A, 1.485GHz) 300m (Belden 8281 , 270 MHz) return loss: >15 dB (1.485 GHz) supported video standards:...
  • Page 39 8. TECHNICAL SPECIFICATIONS REMOTE remote control serial remote interface RS-422 in/out level : connector : 9 pin SUB-D male/female GPI parallel remote level : +3…+30V, H-active, optocoupler connector : 15 pin SUB-D female Tally Out level : normally closed relais contacts Contact rating: 1A 24 VDC, 0,5 A 125 VAC max.

  • Page 40: Warranty And Service Information

    9. WARRANTY AND SERVICE INFORMATION WARRANTY AND SERVICE INFORMATION JÜNGER AUDIO grants a two-year warranty on the 4-channel digital audio leveller b46 If the unit has to be serviced, please send it, ideally in the original box, to: JÜNGER AUDIO - Studiotechnik GmbH Justus-von-Liebig-Str.
  • Page 41 KONFORMITÄTSERKLÄRUNG DECLARATION OF CONFORMITY Geräteart: Digitaler Dynamikprozessor Type of equipment: digital dynamics processor Produkt / Product: b46 Das bezeichnete Produkt stimmt mit den Vorschriften folgender EU-Richtlinie(n) überein: The aforementioned product complies with the following Europaen Council Directive(s): 89/336/EWG (geändert durch 91/263/EWG und 92/31/EWG) (changed by 91/263/EWG and 92/31/EWG) Richtlinie der Rates zur Angleichung der Rechtsvorschriften der Mitgliedsstaaten über die elektromagnetische Verträglichkeit...
  • Page 44 JÜNGER AUDIO - Studiotechnik GmbH Justus-von-Liebig-Str. 7, D - 12489 Berlin, GERMANY Tel.: +49 30 6777210, Fax.: +49 30 67772146 www.junger-audio.com...

This manual is also suitable for:

B41B42B43B44B45B46

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