Consider someone who knows two (or more) languages well. When that person dreams, he does not hear with one of those languages. He just understands what someone in the dream says.
Hi Lal, I know 2+ languages and have had many dreams where I speak in different languages. By that I mean that I could almost literally hear myself speak and notice that I’m making a “conscious effort” to use one foreign language or other (i.e. in the dream I know that I’m speaking a foreign language).
What did you base your opinion on? Own experience or some research?