This standard specifies format requirements for real-time Audio Metadata carried within an AES3 interface according to SMPTE ST 337. Audio Metadata is grouped into payloads for transport. This standard covers wrapping and transport of the Audio Metadata payloads only. The contents of audio metadata payloads are defined elsewhere and are beyond the scope of this standard, however Utility payloads that contain information that supports carriage of the Audio Metadata payloads are within scope and are defined in this standard. This standard specifies KLV encoding for wrapping and transport of Audio Metadata payloads, but places no requirement on the format of the metadata carried within Audio Metadata payloads.-This standard applies to Audio Metadata payloads only. Transport of payloads other than Audio Metadata payloads and associated Utility payloads is beyond the scope of this standard.