The Vonage Video API has introduced an Audio Connector feature that allows for real-time audio translation during video calls, utilizing Microsoft's Azure AI Speech Service. The feature enables users to send individual or combined audio streams to a WebSocket server, which is then used by the AI service to translate the audio in real-time. To use this feature, developers need to set up a WebSocket server and provide credentials from their Vonage Video API key and secret, as well as a Microsoft Azure Speech Services resource. The translated text can be displayed on the participants' screens using the Vonage Video Signal feature. This technology opens up new possibilities for real-time translation and analysis of audio streams, making it an exciting development in video conferencing capabilities.