Speak based on Azure Speech is a Chrome extension that leverages the Azure Speech service to convert selected text into audio. This text-to-speech (TTS) extension supports a wide range of languages and requires users to set up an API key for Azure Speech Service. To use this extension effectively, users must have an existing Azure Speech Service account, including the Free Tier which offers 0.5 million free characters per month. Additionally, it utilizes Chrome's Live Caption feature for captions.

The extension supports an extensive list of languages, including English (US), Chinese (Mandarin, simplified), Arabic (Egypt), Spanish (Spain), Japanese, and many more. By integrating with Azure Speech, users can easily convert text into spoken audio across various languages for enhanced accessibility and convenience.