I'm not sure if this is even a question that could have an answer without hearing the recording in question, but there a way to differentiate between Mandarin and Cantonese from the general tone or sound of the way someone speaks? For instance, does one have more "sh" sounds and the other more sibilant "s" sounds? I am transcribing a Chinese gentleman and I'd like to identify his speech more accurately than just [SPEAKING FOREIGN LANGUAGE].
Being kind of a stickler for finishing things as thoroughly as possible, I thought it'd be nice to figure out which dialect he's speaking. Alternately, if I can't figure it out, do you think it would be all right to state [SPEAKING CHINESE]?
Thanks for your advice.