3D Audio Standard: ECMA-407 by Swissaudec

Posted by Charbax – October 12, 2015

Smart transmitting of 3D audio up to unrestricted NHK 22.2 sound, a problem Swissaudec solved with ECMA-407: NHK 22.2 sound is built with 24 channels, 22 speaker channels and 2 subwoofer channels, consuming 28'800kb/s bandwidth in PCM. With ECMA-407 Swissaudec provides the solution to compress this amout of data up to 600 times - holding the world record in audio compression! By internally multiplexing additional 2kb/s, they extend any HD 5.1 or 7.1 carrier to transmit UHD audio up to NHK 22.2. Swissaudec showcases NHK 22.2 satellite transmission over an MPEG-4 7.1 network at 256kb/s together with SES and France Télévision. Contrarily to non-backwards-compatible standalone standards like MPEG-H or ATSC, Swissaudec invisibly extends existing 2D structure by ECMA-407 to work seamlessly with any existing audio codec. This is also the reason why streaming NHK 22.2 audio with ECMA-407 requires no network changes, as a most efficient, smart and easy UHD audio solution, broadcasters can consider this upgrade for their sound.

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