What is this PD IEC TS 62312-2 - Synchronization of audio and video about?
PD IEC TS 62312-2 discusses guidelines for synchronization of audio and video with a focus on methods for synchronization of audio and video systems. PD IEC TS 62312-2 is the second part of the PD IEC TS 62312 multi-series on guidelines for synchronization of audio and video that gives guidelines for methods of synchronization of audio and video. PD IEC TS 62312-2 describes the system model and general methods for the synchronization of audio and video. The methods exclude the synchronization of the signal source and the spatial delay of audio reproduction.
Who is PD IEC TS 62312-2 - Synchronization of audio and video for?
PD IEC TS 62312-2 on synchronization of audio and video is useful for:
- Audio equipment manufactures
- Audio programmers
- Music producers
- Music studios
- Other equipment that uses audio interface (television, phones)
Why should you use PD IEC TS 62312-2 - Synchronization of audio and video?
Audio, video and multimedia systems and equipment have begun to use digital technologies. Digital systems or equipment may cause delay of audio and video signals because digital signal processing causes latency and delay. The unevenness of the delay between audio and video can cause synchronization problems.
PD IEC TS 62312-2 provides guidelines for methods of synchronization of audio and video to control synchronization of audio and video, synchronization information is provided, and the controller should control the delay of the audio and video devices with the synchronization information. The synchronization information and the controller signal are transmitted through digital interfaces or a control line.
What’s changed since the last update?
PD IEC TS 62312-2:2018 supersedes PD IEC TS 62312-2:2007, which is withdrawn. PD IEC TS 62312-2:2018 includes some technical changes with respect to PD IEC TS 62312-2:2007. These include:
- Fingerprint is newly introduced
- Addition of the synchronization information from fingerprint (SMPTE spec.)
- Addition of the method for using the above information