He can speak many languages.

He is an expert in orthoepy, teaching pronunciation.

Learning about the culture of specific Asia is very interesting.

You can also listen to this movie in English with the secondary audio.

The structure of the speech organs greatly affects the pronunciation of language.

By learning phonetic symbols, accurate pronunciation becomes possible.

He is an expert in computational linguistics and is involved in the development of artificial intelligence.

The timbre of his voice is very beautiful.

The sound was so quiet that I could hardly hear it.

That sound is very beautiful.