This Clarify PHP sample code demonstrates fixing the issue around loading tracks. Clarify allows you to extract knowledge from audio and video content. The API calls use the standard HTTP methods GET, POST, PUT and DELETE to perform operations on resources. It handles authentication, the HTTP aspects, and wraps commonly needed functionality in language-specific constructs, with responses that are in the hypermedia JSON format HAL. Clarify.io is an Audio and Video API service company that allows software developers to extract information from their audio and video recordings.