Level Magic™

Level Magic™ is a comprehensive loudness measurement, correction and management algorithm designed to ensure compliance with all current worldwide loudness standards. Based on the underlying ITU-R BS.1770(-1/2/3) principle, Level Magic provides compatibility with EBU R128, ATSC A/85, ARIB TR-B32, FREE TV OP-59 and Portaria 354. Designed to be audibly transparent, Level Magic™ utilises a proprietary multi-loop approach comprising of three essential elements in parallel to measure, and if necessary correct, out of specification audio. An AGC section controls slower changing levels over time whilst a fast acting transient processor catches inaudible high frequency overshoots that may otherwise cause detrimental effects in downstream processing or coding. A brickwall filter provides effective True Peak limiting using a 2ms look-ahead to capture any intersample peaks. The resultant gain changing signal is a combination of all three elements. The Level Magic™ algorithm is highly adaptive to the structure of the incoming audio and requires only a small number of parameters to be set by the user. The result is audio compliant with the selected standard but free of any unwanted artefacts such as pumping, breathing or distortion.

Related Products

  • D*AP4 LM EDITION - 4 Channel Level Magic™ Audio Processor Edition
    D*AP4 LM EDITION - 4 Channel Level Magic™ Audio Processor Edition
    • Level Magic™ loudness management according to: ITU-R BS.1770 (all revisions), EBU R128, ATSC A/85, ARIB TR-B32, Free TV OP-59 and Portaria 354
    • Dynamics with compressor and expander/gate
    • Fail Over with signal loss detection
    • Ethernet connectivity for set up and control via web browser
    • 19”, 1RU device, redundant PSU
    product page
  • D*AP4 VAP EDITION - 2 Channel Voice Audio Processor Edition
    D*AP4 VAP EDITION - 2 Channel Voice Audio Processor Edition
    • Dual mono or stereo voice channel configuration
    • 2 channel program path in addition to voice channels
    • 5 band Parametric EQ and Spectral SignatureTM dynamic EQ
    • Dynamics with upward/downward compressor and expander/gate
    • 19”, 1RU device, redundant PSU
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  • D*AP4 FLX – 4 Channel Stereo Audio Processor
    D*AP4 FLX – 4 Channel Stereo Audio Processor
    • Flexible feature set, configurable by licenses
    • True peak limiter
    • Loudness measurement supporting all worldwide standards
    • Ethernet connectivity for set up and control via web browser
    • 19”, 1RU device, redundant PSU
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  • D*AP8 TAP EDITION - 8 Channel Surround Television Audio Processor Edition
    D*AP8 TAP EDITION - 8 Channel Surround Television Audio Processor Edition
    • Level Magic™ loudness management according to: ITU-R BS.1770 (all revisions), EBU R128, ATSC A/85, ARIB TR-B32, Free TV OP-59 and Portaria 354
    • Spectral Signature™ dynamic EQ
    • Surround upmix functionality
    • Optional audio encoding & decoding: Dolby® Digital Plus, Dolby® Digital, Dolby® E, Pro Logic II, AAC, HE-AAC v1/2
    • 19”, 1RU device, redundant PSU
    product page
  • D*AP8 FLX – 8 Channel Surround Audio Processor
    D*AP8 FLX – 8 Channel Surround Audio Processor
    • Multi channel / Multi format audio processing
    • Flexible feature set, configurable by licenses
    • True peak limiter
    • Optional audio encoding & decoding: Dolby® Digital Plus, Dolby® Digital, Dolby® E, Pro Logic II, AAC, HE-AAC v1/2
    • 19”, 1RU device, redundant PSU
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  • COMPACT 256
    COMPACT 256
    • 19”/3RU frame, C8702 frame controller, C8817 GPI/O interface, 1x C8492 processing module (licensed for 4ch)
    • Scalable design for up to 256 audio channels in up to 16 SDI streams
    • Level Magic™ loudness management according to: ITU-R BS.1770 (all revisions), EBU R128, ATSC A/85, ARIB TR-B32, Free TV OP-59 and Portaria 354
    • Dynamics with downward compressor and expander/gate
    • Optional loudness logging software (J*AM)
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  • COMPACT 64
    COMPACT 64
    • 19”/1RU frame, C8702 frame controller, C8817 GPI/O interface, 1x C8492 processing module (licensed for 4ch)
    • Scalable design for up to 64 audio channels in up to 4 SDI streams
    • Level Magic™ loudness management according to: ITU-R BS.1770 (all revisions), EBU R128, ATSC A/85, ARIB TR-B32, Free TV OP-59 and Portaria 354
    • Dynamics with downward compressor and expander/gate
    • Optional loudness logging software (J*AM)
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  • High Density Board
    C8492 High Density Board
    • SDI (3G/HD/SD) embedder and deembedder for 16 audio channels
    • Level Magic II™ loudness management for up to 16ch according to: ITU-BS.1770 (all revisions), EBU R128, ATSC A/85, ARIB TR-B32, Free TV OP-59 and Portaria 354
    • Stressless processing of unlocked SDI streams
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  • C8000 - Feature Set
    C8000 - Feature Set
    • 19” frame based fully modular system (1Ru or 3RU frames)
    • Wide range of audio processing functionality
    • Extensive support for Dolby® decoding and encoding
    • SDI interface for embedding/de-embedding of audio, Metadata transport and lip sync control
    • Network based automation, control, management and measurement
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  • Level Magic™ processor / 5.1 Upmix
    C8092 Level Magic™ processor / 5.1 Upmix
    • 16ch Level Magic™ processor
    • Loudness Management
    • True Peak Limiter
    • Expander / Compressor / Delay
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  • SDI Interface and Level Magic™ processor
    C8492B SDI Interface and Level Magic™ processor
    • SDI de-embedder/re-embedder
    • Level Magic ™ Loudness Management
    • Compressor / Expander / Limiter
    • Optional 5.1 Upmix
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  • J*AF LM – AUDIO PROCESSING PLUG-INS
    J*AF LM 5.1 / J*AF LM 2.0 J*AF LM – AUDIO PROCESSING PLUG-INS
    • Real Time & Offline Loudness Processor Plug-In
    • Audio I/O in 1, 2 and 6 channels
    • Sampling rates in 44.1, 48, 88.2 and 96 kHz
    • Transient Processor, Adaptive AGC, Distortion-free true peak limiter
    • Compliant with all current broadcast audio loudness recommendations
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