A communication hub for a communication system and a communication system are provided. The communication hub comprises at least an audio I/O interface for connection with one or more audio sources to at least receive an input audio signal, a user device interface for connection with at least one user audio device, a processor to provide a user input audio signal to the user device interface from the input audio signal, and a reporting module, configured to generate metadata of at least the input audio signal and to provide the metadata to a monitoring device of the communication system.