Question

if there is more than one speaker, how should they be all noted
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Answer 1

Answer:

If there is more than one speaker, their names (if they are known) must be used. If not - mark them as "Speaker 1", "Speaker 2" and so on. Always use a speaker label, even if there's only one speaker.

Hope this answer is what you were asking for.

Answer 2

Answer:

can be noted as speaker 1,speaker 2so on