functionality in speech to text API

@Sanniddha Chakrabarti The available features of speech to text API are basically request parameters of the API in general where automatic punctuation is available in the response. The page you are referring above is a demo page to display the ability of automatic punctuation of the service which is a natural way of presenting text based service.

Text normalization is actually a feature of the custom speech scenarios where you can train your custom speech models with your own set of normalization rules according to your organizations specifications. Dictation or conversational speech are general scenarios that the speech service can understand and provide the response based on the speech input.