If you cannot identify who exactly is speaking, the recommended approach is to use speaker labels with a question mark before the label, such as "?Speaker 1," "?Speaker 2," and so forth. This signals uncertainty about the speaker's identity while still differentiating speakers. An editor or later review can then correct or clarify the speaker identification as needed. Using generic speaker labels without signaling uncertainty is not advised because it may cause confusion or errors in transcription or documentation.
This approach is commonly used in transcription and editing contexts to maintain clarity about speech segments when the speaker is not confidently known at the time of transcription.
