> ## Documentation Index
> Fetch the complete documentation index at: https://docs.premierecopilot.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Smart Diarization

> Detect the speakers in a mixed recording and rebuild the edit with one audio track per speaker.

Smart Diarization detects who speaks when in a mixed recording, lets you review the detected speakers, then creates a new sequence with one audio track per speaker.

It is useful when you received a single mixed audio file but need separate speaker tracks for editing, mixing, captions, or multicam preparation.

## Quick Start

<Steps>
  <Step title="Open the source sequence">
    Make the sequence containing the mixed conversation active.
  </Step>

  <Step title="Choose an export folder (optional)">
    Select a permanent folder next to your project, or leave the field empty to use the Premiere Copilot folder in Documents.
  </Step>

  <Step title="Detect speakers">
    Click **Detect Speakers** and wait for the audio export and speaker detection to finish.
  </Step>

  <Step title="Review the speakers">
    Check the number of detected segments and speaking time. Click a speaker to jump to their first line.
  </Step>

  <Step title="Split the speakers">
    Click **Split Speakers** to create the new speaker sequence.
  </Step>
</Steps>

<Warning>
  The exported audio file becomes the media used by the new sequence. Do not delete or move it after the split unless you relink it in your editing software.
</Warning>

## What the result contains

The review displays each detected speaker with:

* A speaker name.
* The destination audio track.
* The number of speaking segments.
* The total speaking time.
* A shortcut to the first detected line.

When applied, the tool imports the exported audio and builds a new sequence in which each speaker is heard only on their assigned track. Your original sequence remains available.

<Note>
  Speaker detection separates voices by identity, not by microphone name. If two people sound very similar or speak over each other frequently, review the result carefully.
</Note>

## Choosing the export folder

Use a folder that will stay with the project. The default Premiere Copilot folder is suitable for local work, while a dedicated media folder next to the project is safer for archiving or handing the project to another editor.

Saved presets remember your preferred export folder.

## Best source material

Smart Diarization works best when:

* Each person has a distinct voice.
* Dialogue is louder than music and background noise.
* Speakers do not constantly talk over one another.
* The sequence contains continuous, online audio.

## Common pitfalls

<Warning>
  * **Music under the conversation** can be interpreted as part of the mix and reduce separation quality.
  * **Heavy overlap between speakers** makes the boundary between voices uncertain.
  * **Deleting the exported audio** takes the new sequence offline.
  * **Applying before review** can create an unnecessary sequence when the detected speaker count is wrong.
  * **Editing during processing** can invalidate the timing used to rebuild the tracks.
</Warning>

<Tip>
  For the cleanest result, duplicate the source sequence, mute music and sound effects, run Smart Diarization on dialogue only, then use the separated sequence in your final edit.
</Tip>