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# Introduction

HPE Media Server can perform Speech-to-Text, which extracts speech from the audio and converts it into text. When the audio or video source contains narration or dialogue, running Speech-to-Text and indexing the resulting metadata into IDOL Server means that IDOL can:

- search all of the video that you have processed to find clips where a speaker talks about a specific topic.
- categorize video clips.
- cluster together video clips that contain related concepts.

To analyze speech, you must have an IDOL Speech Server. For more information about using IDOL Speech Server, refer to the IDOL Speech Server documentation.

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