Some real-world examples of this includes the members of the Kardashian clan. ... While some people naturally have low-pitch voices, for those who don't, it's a conscious choice.

The discrimination of high versus low pitch and the voluntary production of a lower voice is key to success. ... to spontaneous speech. In the process, it often becomes apparent that the alterations ...

Pitch – The pitch of a sound is how high or low the sound is. Sound wave – A longitudinal wave of sound caused by an object vibrating. Vibrates – To move rapidly to and fro.

“It could also be that the low pitch itself acts as a direct cue to male quality,” he added. Dr Ellis agreed, saying that female koalas he studies seem to select mates based on the bellow.