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Before You Index > Enrich Your Content > Extract Speech > Identify Documents to Process

# Identify Documents to Process

CFS only extracts speech from documents that have the `AUTN_NEEDS_TRANSCRIPTION` field. You must add this field to any document that you want to process.

HPE recommends that you add this field using a Lua script. You can include conditions in the script to filter documents based on the document source, file type, or metadata extracted by KeyView.

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