broadcasting Broadcasting is the data distribution, distribution of sound, audio audiovisual content to dispersed audiences via a electronic medium (communication), mass communications medium, typically one using the electromagnetic spectrum (radio waves), ...

, sound multiplex is a method to deliver alternative audio feeds on television and radio channels.

Usage

This way, a television or radio channel can carry surround sound (like stereo or 5.1 surround sound), or alternative audio programming where an audio track in different language, alternative sports commentary, or audio description for people with visual impairment can be heard.

Standards

;Analogue television * EIAJ MTS, a standard developed by Electronic Industries Association of Japan (EIAJ) in Japan *

Multichannel television sound Multichannel Television Sound (MTS) is the method of encoding three additional audio channels into analog 4.5 MHz audio carriers on System M and System N.The system was developed by an industry group known as the Broadcast Television Systems ...

(MTS), a standard developed in the United States, and adopted in Argentina, Brazil, Canada, Chile, Mexico, Philippines, Taiwan and United States ** Second audio program (SAP), part of MTS * Near Instantaneous Companded Audio Multiplex (NICAM), a standard developed in the United Kingdom, and adopted in major European and Asia-Pacific countries * Zweikanalton ( A2 Stereo), a standard developed in Germany, and mainly adopted in Australia, Austria, Germany, Netherlands, South Korea and Switzerland ;Analogue radio * Subsidiary communications authority (SCA), a standard developed in the United States, and also adopted in Canada ** FMeXtra, a digital application of SCA * HD Radio, a proprietary digital standard also established and used in the U.S. and Canada

External links

* Broadcasting Sound {{Bcast-stub