Should I read "The voice production is direct, in a male voice, which..." as "the production of voic

Should I read "The voice production is direct, in a male voice, which..." as "the production of voice is like the voice of a man"?

The control in this instance professes to be Walter, the lady's dead brother, and he exhibits a very marked individuality with a strong sense of humour and considerable command of racy vernacular. The voice production is direct, in a male voice, which seems to operate some few inches in front of the medium's forehead.

"The History of Spiritualism," by Arthur Conan Doyle