# AES11 > Mediated Wiki article. Canonical URL: https://mediated.wiki/source/AES11 > Markdown URL: https://mediated.wiki/source/AES11.md > Source: https://en.wikipedia.org/wiki/AES11 > Source revision: 1059619574 > License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) The '''AES11''' standard published by the [Audio Engineering Society](/source/Audio_Engineering_Society) provides a systematic approach to the [synchronization](/source/synchronization) of digital audio signals.{{Cite web|url=http://www.aes.org/publications/standards/search.cfm?docID=18|title = AES Standard ยป AES11-2009 (R2019): AES recommended practice for digital audio engineering - Synchronization of digital audio equipment in studio operations. (Revision of AES11-2003)}} AES11 recommends using an [AES3](/source/AES3) signal to distribute audio clocks within a facility. In this application, the connection is referred to as a '''Digital Audio Reference Signal''' ('''DARS'''). Further recommendations are made concerning the accuracy of sample clocks as embodied in the interface signal and the use of this format as a convenient synchronization reference where signals must be rendered co-timed for digital processing. Synchronism is defined, and limits are given which take account of relevant timing uncertainties encountered in an audio studio. ==Related developments== AES11 Annex D (in the November 2005 or later printing or version) shows an example method to provide [isochronous](/source/isochronous) timing relationships for distributed AES3 structures over asynchronous networks such as [AES47](/source/AES47) where reference signals may be locked to common timing sources such as [GPS](/source/GPS). In addition, the [Audio Engineering Society](/source/Audio_Engineering_Society) has now published a related standard called [AES53](/source/AES53), that specifies how the timing markers already specified in [AES47](/source/AES47) may be used to associate an absolute time-stamp with individual audio samples. This may be closely associated with AES11 and used to provide a way of aligning streams from disparate sources, including synchronizing audio to video in networked structures. The media profile defined in annex A of [AES67](/source/AES67) provides a means of using AES11 synchronization via the [Precision Time Protocol](/source/Precision_Time_Protocol). ==References== {{reflist}} Category:Audio engineering Category:Sound Category:Broadcast engineering Category:Audio Engineering Society standards --- Adapted from the Wikipedia article [AES11](https://en.wikipedia.org/wiki/AES11) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/AES11?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.