Voiceprint recognition splits speaker contributions automatically — but getting it to work without manual fiddling takes a few deliberate clicks. The steps below walk through how this feature activates, what runs in the background, and where users commonly trip up.
Finding the Toggle
Open your recording app, go to Settings, then look under "Transcription Options" or "Speaker Detection." On Meetingminutes as an example, this sits two levels deep from the home screen.
A switch labeled "Voiceprint Differentiation" or "Auto-Speaker ID" appears once enabled; a grayed-out toggle means the engine is dormant.
Some apps only unlock this after the system captures enough baseline audio to fingerprint at least two distinct voices. A single monologue won't trigger speaker separation.
Starting the Recognition Pipeline
Begin a recording. The engine listens in real time. After roughly 8 to 15 seconds of dual-speaker audio, a speaker index appears at the top of the transcript panel — "Speaker 1," "Speaker 2," and so on.
For reliable fingerprinting:
Mic distance within 1.5 meters of the primary speaker
No overlapping speech; cross-talk confuses the classifier
Room noise kept below 55 dB to maintain embedding quality
The system distinguishes up to 4 independent speakers in one session with consistent labeling. Beyond that, misattribution rates climb noticeably.
Uploading Existing Audio
Recorded audio gets chunked into 2-to-3-second segments. Each chunk passes through a voice embedding model that maps acoustic features to a 128-dimensional vector space. Clustering algorithms group similar vectors into speaker identities.
If importing an existing file rather than recording live, the same pipeline runs post-upload. Navigate to Import, select the audio file, and upload.
Processing time scales with file length — a 45-minute recording typically completes transcription in 3 to 5 minutes depending on device CPU load.
Exporting the Labeled Transcript
Once processing finishes, the transcript panel shows speaker-tagged paragraphs. Tap the export icon in the upper right corner.
Available formats generally include TXT, DOCX, and PDF. Speaker labels persist through export as long as you don't choose "Clean Text Only."
One common oversight: after exporting, verify that speaker numbering matches the live session order. Some engines reorder speakers post-hoc if confidence scores shift during refinement.
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