File-based loudness measurement and normalization

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1 File-based loudness measurement and normalization

2 Loudness Analyzer is a line of desktop applications for on-air loudness control and file-based loudness measurement and normalization 2

Overview LA Production with Level Magic algorithm allows broadcasters to perform file-based loudness measurement and normalization in compliance with all current

3 Overview LA Production with Level Magic algorithm allows broadcasters to perform file-based loudness measurement and normalization in compliance with all current international standards while preserving high audio quality Compliant with: ITU-R BS.1770(-1/2/3) EBU R128 ATSC A/85 ARIB TR-B32 FREE TV OP-59 Portaria

4 Level Magic algorithm LA Production utilizes the original Level Magic algorithm as an option. Developed by Jünger Audio, Level Magic is a sophisticated loudness control algorithm, that normalizes files with a multi-stage design: Adaptive Gain Control (AGC), Transient Processing and Brickwall Peak Limiting. As a result, the audio is compliant with the selected standard but free of any unwanted artefacts such as pumping, breathing or distortion Digital Audio Input Digital Audio Output Transient Detector Level Detector Level Magic TM Level Detection ITU-BS 1770 (all revisions) Transient Processor Leveler Peak Detector Limiter 4

5 Setting Thresholds The application allows adjusting threshold values for integrated loudness, true peak level, momentary loudness and short-term loudness Default Save Cancel 5

6 Getting Started The application analyzes audio and video files and displays the most critical loudness values If the predefined level is exceeded, the respective value and the file name are marked red Audio track Audio track Number of channels Duration Maximum true peak Level dbtp Maximum value of the momentary loudness. LUFS Maximum value of the short-term loudness. LUFS Integrated loudness. LUFS Loudne range. LUFS Normalize Save 6

7 Loudness Visualization The charts with short-term and momentary loudness values are available in a separate window. It is possible to zoom in to get a close-up view 00:00:00:50 00:00:01:00 00:00:01:50 00:00:0 7

8 Media Info Media information about both video and audio files can be accessed through a separate window 8

9 Normalization In case loudness discrepancies are revealed, Loudness Analyzer allows correcting audio level in accordance with the selected value Normalization settings Save results to: C:\Users\Admin Target level of integrated loudness: LUFS Start manually: OK Normalize Save 9

It also might be used for the analysis of certain fragments of the comliance recording / Measurement

10 Video Player Video player allows the user to split videos into fragments and compare their loudness levels. It also might be used for the analysis of certain fragments of the comliance recording / Measurement results Block Id Segment name Mark In Mark Out Duration Measurement results Video fragment 1 Video fragment 2 (1.7; 0.7) Video fragment 3 Video fragment 4 (-0.3; -1.3) Video fragment 5 (1.0; 0.0) 10

Audio Channel Mapping Audio channel mapping allows for bringing together channels from different audio tracks and having all them analyzed and normalized as it has been predefined in mapping settings

3:1 R: 4:1 C: L: 1:1 R: 2:1 C: : LS: : RS: : L: 3:1 R: 4:1 C: : LS: : RS: : L: 5:1 R: 6:1 C: L: 5:1 R: 6:1 C: : LS: : RS: : L: 7:1 R: 8:1 C: L: 7:1 R: 8:1 C: : LS: : RS: : Create template Delete

11 Audio Channel Mapping Audio channel mapping allows for bringing together channels from different audio tracks and having all them analyzed and normalized as it has been predefined in mapping settings Start Settings General Threshold values Automatic mode Loudness level normalization File splitting Use mapping Tracks count: 8 Template name: 8-1 L: Tracks 1:1count: R: 8 Channels 2:1 count: C 1 L: 3:1 R: 4:1 C: L: 1:1 R: 2:1 C: : LS: : RS: : L: 3:1 R: 4:1 C: : LS: : RS: : L: 5:1 R: 6:1 C: L: 5:1 R: 6:1 C: : LS: : RS: : L: 7:1 R: 8:1 C: L: 7:1 R: 8:1 C: : LS: : RS: : Create template Delete template Add mapping Delete Delete Delete Delete Audio channels mapping Tracks count: 41 Tracks count: 4 Channels count: Add mapping About the program L: 1:1 R: 2:1 C: : LS: : RS: : Delete L: 3:1 R: 4:1 C: : LS: : RS: : Delete 1-2 Tracks count: 12 Channels count: Add mapping Default Save Cancel 11

12 Operating Modes In auto mode, files from selected folders are analyzed, and, if any deviations from predefined loudness values are identified, the app normalizes their loudness levels Clear Save as 12

13 Technical Specifications System requirements: Processor: Intel Core i3 RAM: 4GB or higher OS: Windows 7/8, 32/64bit Supported formats: Audio: Video:.WAV.MXF.AVI.MOV.MP4.FLV.MPG 13

14 Contact Information Aleksey Dolgov Vice President, R&D Anton Turchenko Vice President, Business Development 14

User Manual. Type to enter text

User Manual. Type to enter text User Manual Type to enter text Loudness and True Peak metering at your hand Audio Loudness and True Peak Metering VST, AU and AAX plugin based on BS1770 (rev.3), EBU R128, ATSC A/85 and ARIB TR-B32. Now,