IBM Watson Speech to Text converts audio to text, supporting customization and multiple languages. It's part of the broader IBM Cloud platform and offers features like speaker diarization and keyword spotting. Use smart formatting to control how the engine transcribes numbers and dates for U.S. English and Spanish. You can request results that are not final using the interim_results parameter for use cases that require ultra low latency and partial transcripts. Use inactivity timeout to avoid transcribing silence if your end user walks away from a live mic. Use the timestamps parameter to know when a word stops and ends. This is key for users looking to combine multiple channels of audio or pinpoint when particular words occur in a transcript.