Transcribe Medical: how to enable punctuation?

Hi, Punctuation is available in Amazon Transcribe Medical as well. Please see reference in the following blog post

From a technical perspective, all you have to do is capture audio using your device’s microphone, and send PCM audio to a streaming API based on the popular Websocket protocol. This API will respond with a series of JSON blobs with the transcribed text, as well as word-level time stamps, punctuation, etc. Optionally, you can save this data to an Amazon Simple Storage Service (Amazon S3) bucket.