Google allows you to personalize your Google Assistant experience by allowing you to select a preferred voice. Google Assistant already offers 11 English voices here in the U.S. Today, Google announced a new voice in nine more languages: German, French, Dutch, Norwegian, Italian, Korean, Japanese, English in the U.K. or English in India. Google will roll out the new voices this week. Google mentioned that these voices are built with DeepMind WaveNet technology to make them sound natural.
You can select your preferred voice under Settings in the Assistant app. Instead of listing out the available voice options, Google has an unique way of displaying these voices by color