Nice work. A quick idea: multi lingual sources

[dgoryeo]

Well done!
And, as the title says, so if the sources are each from different langueages.

[mazany]

Yep, that would be useful. I'm dealing with ASR and diarization (using whisperX) on audio recordings of 2-3 speakers, where both Czech and Slovak language is spoken (with mix of English terms). Automatic language detections often resolves to Czech, so it could be useful to use forced Slovak run as a second source.