D*AP4 VAP EDITION - 2 Channel Voice Audio Processor Edition

The fully featured dual mono or stereo D*AP4 VAP EDITION contains a suite of performance enhancing and creative audio processes dedicated to extracting the maximum potential quality from voice audio with dependable consistency. Flexible I/O options include AES, analog, 3G SDI, MADI, Dante™ Audio over IP and high quality mic pre-amps.

    Aimed at applications including radio broadcast, TV voice over and audio post production, the D*AP4 VAP EDITION is designed to ensure that vocal quality and accuracy is always maintained at its best from program to program and day to day.

    • Overview

    The D*AP4 VAP EDITION features a two channel voice signal path and separate stereo program path for either standalone voice processing, or to provide automatic or manual integration of voice and program signals. An optional microphone pre-amp allows direct input to the dedicated voice path to maintain complete control of the overall voice presentation. The range of on-board signal processing comprises of:

    • Mid/Side Matrix

    As a creative tool, the M/S Matrix uses two mics placed closely together to capture and produce variable width stereo recordings.

    • Phase Rotator

    The Phase Rotator automatically detects imbalanced audio waveforms and restores symmetry to prevent transients that may unnecessarily trigger downstream processing.

    • De-Esser

    The De-Esser greatly reduces the effect of excessive sibilance from spoken voices.

    • Parametric and Dynamic EQ

    A 5-band Parametric EQ is coupled with Spectral Signature™ dynamic equalizer, a powerful creative tool allowing adaptive control of spectral balance. Incoming audio is analyzed and its spectral structure is compared to a predetermined “reference” curve. This allows dynamic EQ corrections to be applied only if necessary to achieve a consistent sound image and tonal balance.

    • Dynamics

    In addition to a traditional upward compressor, a threshold based downward compressor is also included. Both types adaptively adjust timing parameters based on the incoming audio structure. An expander/gate effectively removes low-level noise without introducing artifacts.

    • Voice Leveler

    To assist in loudness based programming, a voice leveler can be used to pre-condition the voice component prior to combining it with the program element.

    • Voice Over

    Voice Over provides seamless integration of voice and program content in situations such as continuity announcements or video description with automatic ducking.

    • Level Magic™ Loudness Management

    Based on a unique multi-loop control principle, the optional Level Magic™ algorithm provides adaptive wideband loudness control with exceptionally high audio quality that is free of coloration, pumping, distortion or modulation effects. The optional J*AM software displays input v/s output levels and can log long term values to a destination folder anywhere on the network.

    • System Integration

    All system parameters are remotely accessible allowing the unit to be integrated and remotely operated by broadcast control systems. An advanced built-in Event Management tool allows the remote loading of parameter presets either by hotkeys on the optional X*AP RM1 remote panel, by 8 onboard GPI/O’s or by network commands using the Ember+™ control protocol. This makes it easy to assign individual settings to each user and re-call them instantly.

    • Web Configuration

    A web interface allows easy and intuitive setup and configuration from anywhere in your network. On screen metering and measurements are available for easy reference.

    • Mobile User Interface

    A dedicated “mobile” UI is tailored specifically for smaller displays such as tablets or smartphones and offers fast access to user profiles and commonly required functions such as Cough Cut and Voice Over.

    • Interfaces and System Security

    Audio I/O’s range from on board native AES/EBU to optional 3G SDI including video delay, MADI, Dante™ audio over IP, analog and high quality mic pre-amps. Power fail bypass relays are fitted as standard and with dual redundant PSU’s and SNMP integration, the unit ensures maximum operational safety and peace of mind for today’s critical 24/7 radio and TV broadcast or audio production facilities.

    D*AP4 VAP EDITION Feature Set
    D*AP4 VAP EDITION Feature Set

    Key Features:

    D*AP4 VAP EDITION Processing Block Diagram
    D*AP4 VAP EDITION Processing Block Diagram
    • Dual mono or stereo voice channel configuration
    • 2 channel program path in addition to voice channels
    • Algorithms specialized for voice processing
    • Sophisticated user profile management
    • De-Esser
    • 5 band Parametric EQ and Spectral SignatureTM dynamic EQ
    • Dynamics with upward/downward compressor and expander/gate
    • Voice leveler
    • Voice Over functionality
    • True peak limiting
    • Optional Level Magic™ loudness management compliant with all current standards and recommendations
    • Optional loudness logging software (J*AM)
    • Ethernet connectivity for set up and control via web browser
    • External control via network or GPI/O’s
    • Power-fail bypass relays
    • 19”, 1RU device, redundant PSU

    Versions & Options

    • D*AP4 VAP EDITION: D*AP4 base unit plus VAP feature set
    • X*AP RM1: hardware remote control linked via Ethernet
    • Option Board 16ch SDI I/O (3G/HD/SD)
    • Option Board 4ch analog I/O
    • Option Board 8ch analog Out
    • Option Board 8ch AES/EBU I/O
    • Option Board 16ch Dante Audio over IP
    • Option Board 16ch MADI I/O
    • Option Board Analog Line in/Mic-in
    • License Level Magic TM Loudness Management


    All Jünger Loudness control / - Management devices from all product lines share a neat feature: The gathered measurement data is made available for downstream measurement applications via Ethernet. Learn more about at Measurement and Logging Software Tools.

    • J*AM Application Manager
      System: MS Windows™
      download (ZIP, 23.4 MB)
      Changelog (2017-03-24):
      • Added new Loudness Meter
      • Added numeric adjustable loudness integration range for Analyzer
      • Fixed Log Port renaming update
      • Fixed performance issue
      • Improved stability

    Product Brief



    • D*AP4 VAP EDITION rel_vap_1_4_2.zip download (ZIP, 30.1 MB)
      Changelog 1.4.2 (2016-12-16):

      Firmware for D*AP4 VAP EDITION Voice Audio Processor

      Changes 1.4.2:

      • new feature (Dante) Dante firmware version updated - device is now prepared for AES67 mode operation
      • new feature (XAP) automatically reconnects after network drop out or power down (XAP firmware update required!)
      • new feature (XAP) automatic IP-conflict detection and warning (XAP firmware update required!)
      • new feature (Web UI) Dante locked status and AES67 mode shown on Dante interface status page
      • improved (Audio) updated presets and default settings
      • improved (XAP) all current AP series parameters are now supported on the XAP
      • improved (Web UI) preset import is now handled at once for multiple presets from a single backup file
      • improved (Web UI) create preset event from program only
      • improved (Web UI) moved M/S matrix within preset events from Voice to its own group
      • improved (Web UI) default stereo linking is now set to linked (after initialization to factory defaults)
      • improved (Web UI) X*AP enable checkboxes greyed out for Remote Hotkeys greater than eight
      • fixed (Audio) problem with Leveler action in linked stereo mode
      • fixed (Web UI) graphical problem with voice over preset section

      Changes 1.4.1 r2:

      • added factory default presets file to firmware package please see enclosed ‘how to’ guide for restore instructions

      Changes 1.4.1:

      • new feature (Audio) Leveler in voice channels can now be set to manual freeze to stop it from reacting on unwanted audio signals (coughs, intercom talk…)
      • new feature (Audio) Leveler in voice channels is now improved with an easier to set up Freeze Threshold and Low Level Behaviour parameters, known from Level Magic
      • new feature (Audio) Spectral Signature can now be set to manual freeze to stop it from reacting on unwanted audio signals or make use of it as a static equalizer
      • new feature (Audio) Level Magic (optional license) is now equipped with a response boost function that temporarily increases its reaction to incoming high level signals - please refer to the manual for details (Release)
      • new feature (Audio) Level Magics initial response to already normalized audio material was significantly improved
      • new feature (Audio) Level Magic is now equipped with an automatic Clear Processing History function that resets the system on long periods of disrupted audio. Please note, Below Threshold Mode needs to be set to Release
      • new feature (System) the real time clock can now be synchronized to NTP time servers
      • new feature (System) system status is now available as a parameter trigger
      • new feature (Interface) next generation 4x4 analog audio interface board (O_DAP_ADDA_b) now supported
      • new feature (Web UI) important status messages are now shown on a red info bar
      • new feature (Web UI) preset cleanup function helps deleting unused presets
      • new feature (Mobile UI) configurable button matrix (please see Mobile UI side menu)
      • improved (Mobile UI) for simplification only profiles are shown by default (can be reconfigured via Web UI)
      • improved (Interface) option boards without distinct firmware are now nevertheless shown on the Firmware Update page to provide better system overview
      • improved (Audio) manual stereo routing is now carried out simultaneously for both channels
      • improved (Audio) added ITU 1770-4 mode. This mode equals ITU 1770-3
      • improved (System) status and front panel display turns red on DSP halt
      • improved (Firmware) firmware files are internally checked for compatibility before update
      • improved (Factory Defaults) default settings for the loudness recommendations are up to date again
      • improved (Backup) added serial number to exported backup file name
      • improved (Web UI) added comment to latency compensation setup
      • improved (Interface) (O_DAP_8DA_a) analog interface stability at higher sample rates
      • changed (Mobile UI) color of manual voice over switch
      • fixed (Audio) inactive Spectral Signature when switching signal chain order to Filter - Dynamics - De-Esser
      • fixed (Web UI) all blocks in dynamics section are now greyed out correctly
      • fixed (Web UI) problem with reloading login page after a couple of seconds, when authentication is active
      • fixed (Web UI) problem with occasional appearing script problem in some browsers
      • fixed (Web UI) rarely occurring Web UI inaccessibility due to system overload
      • fixed (Web UI) problem when importing single presets in Chrome and Firefox Browsers
      • fixed (Web UI) Local SDI and MADI Routing now works properly
      • fixed (Web UI) problem when modifying routings in preset section
      • fixed (Web UI) black favicon in Internet Explorer
      • fixed (Mobile UI) deleting Hotkeys no longer stops Mobile UI from loading
      • fixed (System) problem with manual voice over breaking when simultaneously activated via Web UI and Events
      • fixed (System) occasionally empty system log
      • fixed (Presets) problem when deleting presets while being loaded
      • fixed (Presets) empty preset groups are no longer automatically restored to factory settings on reboot

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