What is BS IEC 61937‑2 about?
Sound quality makes a noticeable difference to user-experience, and users seek better sound quality features in equipment. BS IEC 61937‑2 is the second part of the multi-series on digital audio. BS IEC 61937‑2 specifies the digital audio interface to convey non-linear PCM encoded audio bitstreams applying IEC 60958-1 and IEC 60958-3.
BS IEC 61937‑2 specifies burst-info, which defines content information about the data contained in the burst-payload.
Who is BS IEC 61937‑2 for?
BS IEC 61937‑2 on digital audio is useful for:
- Manufacturers of products that provide audio input and output (televisions, phones)
- Audio equipment manufactures / manufacturers of recording devices
- Audio programmers
- Music producers
- Sound technicians
- Recording and dubbing studios
Why should you use BS IEC 61937‑2?
When manufacturing devices that provide audio inputs and outputs, you want to give your users a quality experience. The quality of the audio input and output affects your brand perception in a competitive market. BS IEC 61937‑2 provides guidelines for conveying non-linear PCM encoded audio bitstreams for digital audio interface.
The audio data bursts and specific properties such as reference points, repetition period, the method of filling stream gaps, and decoding latency are specified for each data type that is used by the transmitter to schedule data bursts as necessary to establish synchronization between picture and decoded audio. BS IEC 61937‑2 specifies the digital audio interface required to convert analog data into digital data.
What’s changed since the last update?
BS IEC 61937‑2:2021 supersedes BS IEC 61937-2:2007+A2:2018, which is withdrawn. BS IEC 61937‑2:2021 includes some technical changes with respect to BS IEC 61937-2:2007+A2:2018.
These include:
- New audio data types of MPEG-D USAC, ACX, ACX HBR2, ACX HBR4 and ACX HBR8 have been added
- Extended data-type field in Pe has been activated.
