# Audio Redaction Transformation Engine

The audio redaction engine replaces words in an audio track with a beep or with silence.

Configuration Parameter | Description
--- | ---
Input | The name of the track that contains the audio records to redact.
LuaScript | A Lua script that determines whether to redact an audio record.
PredicateType | Specifies how to identify the audio records to redact.
RedactionMode | Specifies how to redact the audio (`beep` or `silence`).
RequiredString | A string that a record must contain in order to be redacted. The record is not redacted if it also contains other text.
RequiredSubstring | A string that a record must contain in order to be redacted. The record is redacted if it also contains other text.
Type | The type of transformation engine to use. Set this parameter to `AudioRedaction`.

This transformation engine produces a single output track, named `taskName.Output`, where `taskName` is the name of the transformation task.

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