Replace Speaker Names in Subtitle

Use Case

You have generated a subtitle file with audim or you have a original subtitle file (with manual speaker diarization). Now, you want to replace the speaker names with the actual names or you wish to add speaker names to the subtitle.

Disclaimer

Audim > Aud2Sub can perform speaker diarization, but it generates a subtitle file with speaker placeholders like [Speaker 1], [Speaker 2], etc.

Currently, you have to manually identify the speakers and replace the placeholders with the actual names.

🚧 We will soon have a util tool to aid you with in this manual process.

It is theoritically impossible to identify the speaker names, as it could be anyone's voice and a code has no way to determine that.

Script

from audim.utils.subtitle import Subtitle

subtitle = Subtitle()

# Replace speaker placeholders with actual names
subtitle.preview_replacement(
    "output/podcast.srt",
    speakers=["Grant Sanderson", "Sal Khan"],
    pretty_print=True
)

subtitle.replace_speakers(
    "output/podcast.srt",
    speakers=["Grant Sanderson", "Sal Khan"],
    in_place=True
)

Tips

You might want to generate subtitles with audim first, and then use this script to replace the speaker names.

see: script 01 to generate subtitles.

Tips

You might want to verify the new subtitle file after replacement, Or, you might want some playback help to identify the speakers first.

see: script 08 to play the audio with the subtitles.