Team calls with international colleagues sometimes drift between languages - part of the conversation in English, part in a shared native language when it's faster or more precise for the people involved. That mix is common and doesn't require any special handling before uploading.
Why language switching mid-call isn't a problem
Reading a recording for meaning happens regardless of which language a given segment was spoken in - the system follows the conversation's actual content across language switches rather than needing the whole recording in one consistent language. A call that moves between English and another language produces the same quality of English drafts as a call conducted entirely in one language.
What still requires the normal speaker-selection step
Multi-speaker calls need a perspective selection regardless of language - a mixed-language call with several participants gets the same speaker isolation as a single-language call with the same number of speakers. Language switching and speaker separation are two different problems, and this handles the first automatically while still requiring the normal selection step for the second.
A common real-world example
A leadership call between a founder and a co-founder who share a native language often naturally drifts into that shared language for the trickiest, most nuanced parts of the discussion - the parts where precision matters most - while staying in English for anything meant for a broader team audience on the call. That's not a workflow problem; it's simply how the conversation actually happened, and reading it for meaning follows that natural flow rather than requiring it to be forced into one language throughout.
Why forcing single-language calls would actually hurt quality
If switching to a shared native language for a nuanced point produces a clearer, more precise explanation than struggling through the same point in English, that's the better outcome for the conversation itself - and it's also the better source material once repurposed, since the underlying idea came through more clearly in whichever language the speaker was most precise in. Insisting on English throughout a call, purely to simplify the eventual repurposing, would trade away that clarity for no real benefit.
What this means for how teams should think about recording calls
There's no need to instruct a team to standardize on English for the sake of downstream processing - the natural, most precise way people already communicate is also the best source material, which removes one more thing anyone needs to think about before hitting record.
See how multi-speaker calls in a single language work in how to record in your own language and publish polished English LinkedIn posts, and the same speaker-isolation mechanism applied to executive meetings in how multi-speaker meetings get turned into a single executive's voice, or the full setup on SparkVox for non-native English speakers.