Welcome < Configuration < System Configuration < Audio Processing
The Audio Processing tab allows the user to set up parameters that will automatically be set on audio added, imported, captured and recorded into the library. It is recommended that all audio files be “trimmed” at beginning and end so that only valid audio, not silence, is played out from Zetta. For additional information on how audio is processed and normalized in Zetta see the Audio Processing and Normalization topic in the Features section.
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The Method drop-down allows the user to select how the audio that is imported, captured or recorded is processed. The Method drop-down allows the user to select one of the following options:
No Analysis – The No Analysis option will not make any changes to processed audio. Normalization values are not calculated. If No Analysis is selected, Normalization and Marks Analysis can be done later using the Audio Utility 
found in the Library toolbar.
Normalization and Waveform only - The Normalization and Waveform option will normalize the audio and create the waveform only. It will not locate any markers such as Trim In and Trim Out.
Marks Analysis – Marks Analysis is the default recommended analysis and will analyze the audio and set the marks based on Marks Analysis Settings.
Tip: Perform Marks Analysis can be turned off for individual background recordings as needed.
Trim-In Threshold – Trim-in is an open marker to define where “silence” ends and actual audio begins. (Default -50dB)
Trim-Out Threshold – Trim-out is a closing marker where audio becomes “silence”. (Default -50dB)
Segue Threshold – Segue is the transition point in the audio when one event is mixed with the next event. (Default -18dB)
Determine Intros – Zetta will determine where the accents in the introduction for each audio event are and mark up to three Intros.
The Voice Track setting are used to set the trim levels for the system. To set the Voice Track trim levels per station use the Station Voice Track settings in the station Configuration. When the Voice Track Settings trim Threshold is set, the silence at the beginning and end of a voice track will be trimmed when the voice track is saved.
Trim-in threshold – Trim-in is an open marker to define where “silence” ends and actual audio begins. (Default -30dB)
Trim-out threshold – Trim-out is a closing marker where audio becomes “silence”. (Default -30dB)
Time Stretch allows the user to non-destructively stretch or squeeze an assets audio to meet a specific length of time. The settings in this section are used to set a minimum and maximum warning range. When the specified stretch or squeeze of the audio exceeds these limits a warning is displayed. The Minimum setting cannot be less than .5 and must be less than the Maximum. The Maximum cannot be greater than 2 times and must be greater than the Minimum. See the Marks Editor section of the Library Module topic for more information on Time Stretch.
Mono files Pan law compensation - This 'Mono files Pan law compensation' is used with the Station Normalization settings to adjust the playback level of the mono audio files. The default value of this setting is 3 LUFS. When playing audio, and Station Normalization is being utilized, the LUFS value designated in this setting will be added to Normalization value, if (1) the file being played is a mono file, and (2) either of the two Loudness methods (EBU R128 / Gated) is being used for the given Asset Type.
Example: Song Normalization target for the Station is set to -23 LUFS and Loudness Gated is in use. If the audio on the asset happens to be a mono file, Zetta will adjust the effective Song target to be -20 LUFS (= -23 + 3) for this specific asset (provided the audio playback happens in the context where Station is known; if Station is not known, e.g. auditioning within a Show, this setting will be ignored).
This setting can be set to blank or 0, in which case no adjustment is applied.
Waveform - Samples Per Second - The Waveform option will set the default zoom size for the waveform displayed in the editors. (Default 100)
Empty audio file – An empty audio file can be selected to specify the default location for a newly created audio file in Zetta
Ignore metadata imported with audio files (enable only under RCS supervision) - The Ignore metadata imported with audio files option when enabled will stop Zetta from parsing any tags/cartchunk metadata when loading audio files through whichever means (Auto load, Media Import etc.). The main goal is to prevent bloating the Zetta database with whatever metadata is embedded in audio files being imported as we want to only import metadata provided via the Metadata Import tool.
Fallback to Windows Media Foundation for unsupported audio formats - The Fallback to Windows Media Foundation for unsupported audio formats option is enabled by default. When this option is enabled it will allow Zetta to fallback to using Windows Media Foundation to play an audio asset that is of an unsupported audio format. If this option is disabled (unchecked), unsupported audio formats will not play. See the Audio Format topic for details on supported audio formats.
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To have Zetta® Analyze Media Library Audio automatically on import, perform the following steps: |
to finish.Welcome < Configuration < System Configuration < Audio Processing
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