This word needs to be voiced.

He is struggling with the pronunciation of obstruents.

His pronunciation has clear stops.

The process of voicing plays a very important role in linguistics.

Today is a particularly warm day, isn't it?

He is an expert in acoustics.

Axion is a hypothetical subatomic particle and is considered a candidate for dark matter.

He is my benefactor, he helped me in my difficult times.

His mild personality attracts people quickly.

Where did this sound source come from?