@tes432-0204 Thanks for the question.you can use the timestamps of the spoken segments to determine the silence within audio files. We don’t have a dedicated API for silence detection. Please follow the link for more information.
Release notes for Speech SDK API: https://learn.microsoft.com/en-us/azure/cognitive-services/speech-service/releasenotes
For other measurements forwarded to the product team to check. You can also share your feedback at the uservoice speech service forum. Can you please share more details about the use case.