FluffyVoice

If a user does not want to speak in a voice channel, they can bring this bot into the channel, and all messages they write will be read aloud. You can also use a command to select how long the bot should remain in a voice channel, as it will leave the channel after a certain amount of time.

You can also select the language in which the bot should read the messages aloud.
The bot makes it easier for your users to join a voice channel, even if they don't want to talk.