Information AboutAes47 |
| CATEGORIES ABOUT AES47 | |
| audio engineering | |
| networking standards | |
| broadcast engineering | |
| sound | |
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This article describes a standardised method of interconnecting digital audio over a telecommunication standard network. The development of standards for digitising analogue audio, as used to interconnect both professional and domestic equipment was started in the mid 1980’s within the Audio Engineering Society and the European Broadcasting Union . This culminated in the publishing of the AES3 standard (frequently also known as AES/EBU ) for professional use as well as, using different physical connections as specified in IEC 60958, within the domestic “Hi-Fi” environment. This work has provided the most commonly used method for digitally interconnecting audio equipment worldwide using physically separate cables for each stereo audio connection. INTRODUCTION Many professional audio systems are now combined with telecommunication and IT technologies to provide new functionality, flexibility and connectivity over both local and wide area networks. AES47 was developed to provide a standardised method of transporting the existing standard for digital audio (AES3) over current telecommunication interconnection standards that provide a quality of service required by many professional low latency, uncompressed live audio uses. It may be used directly between specialist audio devices or in combination with telecommunication and computer equipment with suitable network interfaces and utilises the same physical structured cable used as standard by those networks. AES47 DETAILS AES47 ( Annex D shows an example method to provide Isochronous timing relationships for distributed AES3 structures over asynchronous networks such as AES47 where reference signals may be locked to common timing sources such as GPS . |
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