What is the name of the voice assistant that is known for its voice customization capabilities?

Apple's Siri Google Assistant Amazon Alexa Microsoft Cortana

The correct answer is Apple's Siri.

Siri is a voice assistant that is known for its voice customization capabilities. It can be used to set up different voices, accents, and language settings to suit the individual's preferences. Siri is available on Apple devices such as iPhones, iPads, and Macs.