Amazon Transcribe is an automatic speech recognition (ASR) service that makes it easy for you to add speech-to-text capabilities to your applications. Today, we are excited to announce automatic language identification support for multi-lingual streams. If you operate in a country with multiple official languages or across multiple regions, your audio streams can contain different languages and switch between languages. For such use cases, you can enable multi-language identification, which identifies all languages spoken in your stream and creates transcript using each identified language. This means that if speakers change languages mid-conversation, or if each participant is speaking a different language, your transcription output detects and transcribes each language correctly.
Source:: Amazon AWS