ATSC A/85 - General TV Broadcast
Validate or fix a file to match the ATSC A/85 loudness standard
by BeatRig
This recipe facilitates the analysis and processing of audio files according to the ATSC A/85 recommendations used by general USA TV broadcasts, offering options for validation and export.
Usage:
By default, the script analyzes the specified file(s). If the file(s) fail validation and you have a registered copy of Magnetron.app, a dialog will prompt you to fix the files.
File Details:
After processing, hover over a file to view detailed information about the source and destination files.
Settings:
Clicking the wrench icon on the top right corner navigates you to the settings page, where you can adjust the following settings:
Target Settings:
- Loudness: Target loudness relative to full scale (0LU).
- Tolerance: Range within which loudness differences are not adjusted.
- Dialog Gate: Enable dialog gate to measure loudness only during dialog.
Validation Settings:
- TruePeak: Check if maximum peak level exceeds a certain value.
- TruePeak Limit: Limit for fixing peaks with a true peak limiter.
- Max-S: Check for maximum Short-Term loudness.
- Max-M: Check for maximum Momentary loudness.
- Loudness Range: Check if Loudness Range stays within specified range.
Export Settings:
- Export: Process and write files to disk. Options include:
- 'ask': Dialog after each run.
- 'yes': Export files without user interaction.
- 'no': Analyze without processing.
- Overwrite: Determine behavior when encountering existing files.
- Files: Specify which files to process.
- 'all': Process and fix invalid files, copy valid files.
- 'fixed': Process and fix invalid files only.
- Custom Folder: Specify a custom export folder.
- Sub Folder: Specify a sub folder name for export.
- Name Tag: Add custom text to fixed file names.
- Revalidate: Choose whether to completely re-analyze files after processing.
Preview
Handling
Input
Most audio/video files with a single (mono, stereo or surround) stream will be checked PCM Audio file (wav, aiff) will be fixed if neededOutput
R128 compliant PCM audio file (same format as input)
- Loudness equals -23LUFS (+/- 0.5LU)
- TruePeak does not exceed -1.0dB