BS EN 61937-4:2003

What is this BS EN 61937-4 - Digital audio interface to convey non-linear about?  

BS EN 61937-4 discusses digital audio and interface for non-linear PCM encoded audio bitstreams lying IEC 60958 with a focus on non-linear PCM bitstreams according to the MPEG audio format. Sound quality makes a noticeable difference to user experience, and users seek better sound quality features in the equipment. 

BS EN 61937-4 is the fourth part of the multi-series on digital audio that specifies the method for the digital audio interface specified in IEC 60958 to convey non-linear PCM bitstreams encoded in accordance with the MPEG audio. 

Who is BS EN 61937-4 - Digital audio interface to convey non-linear for? 

BS EN 61937-4 on the digital audio interface to convey non-linear is useful for: 

• Manufacturers of products that provide audio output (televisions, phones) 
• Audio equipment manufactures  
• Audio programmers  
• Music producers 
• Sound technicians 
• Recording and dubbing studios  

Why should you use BS EN 61937-4 - Digital audio interface to convey non-linear?  

BS EN 61937-4 specifies the audio data-burst of MPEG audio. Specific properties such as reference points, repetition period, method of filling stream gaps and decoding latency are specified. The decoding latency (or delay), indicated for the data-types, should be used by the transmitter to schedule data-bursts as necessary to establish synchronization between picture and decoded audio. 

BS IEC 61937‑11 discusses the mapping of the audio bitstream onto IEC 61937, format of data-burst for MPEG audio data-burst, pause data-bursts, audio data-bursts, MPEG-4 AAC, and its extension.