Multimodal AI: documents, images and sound · Module 1: Multimodal AI: documents, images and sound in practice
Transcription, speakers and uncertain words
Learning outcome: Avoid turning a probable transcript into a confirmed record.
Speech transcription converts audio into text. Speaker diarisation attempts to separate who spoke when. Neither establishes the speaker's identity or guarantees that negation, names and numbers were captured correctly.
Review decision-critical passages against the audio when permitted. Mark uncertain words and timestamps. Do not assign an action to a person merely because a speaker label sounds plausible. Captions also need meaningful non-speech information and timing; a transcript and captions serve related but different purposes. Use authorised recordings and avoid real personal audio in public practice tools.
Worked example
A fictional transcript reads “We can release on Friday.” The recording says “We can't release on Friday.” A single lost sound reverses the decision. Another line is labelled Speaker 2, but the action owner is not identified. The correct minutes preserve the blocked release and leave ownership unresolved until confirmed.
Try it yourself
Write a corrected meeting note from these facts: Friday release is blocked; a review is needed; the speaker label does not identify an owner. Include a confirmation question.
You can do this exercise on paper. If using an assistant, keep to the fictional material and an approved tool.
Compare your approach
The note must not invent a new release date or assign the review to Speaker 2 as though that were a verified identity. Ask who owns the review and what evidence is needed before rescheduling.
Check your understanding
Which transcript detail deserves priority review?
- Whether every sentence has elegant punctuation
- Whether speaker labels are numbered consecutively
- A negation that changes a release decision
Show the answer and explanation
Answer: A negation that changes a release decision. Negation can reverse the decision, so it is more consequential than punctuation style. Speaker numbering does not verify identity or action ownership.
Workbook
Download the course workbook to record your answer and compare it after the knowledge check.