Margaret Rouse is an award-winning technical writer and teacher known for her ability to explain complex technical subjects simply to a non-technical, business audience. Over…
Secondary Audio Program (SAP) is an auxiliary audio channel alternative to standard television (TV) stations or programs. SAP is transmitted via sub video carriers (for example, color TV) vs. audio carriers like FM radio. SAP is accessible via wireless, TV, videocassette recorder (VCR) or portable receiver.
Most TVs and VCRs manufactured after 1995 are SAP-enabled.
In 1984, the National Television System Committee (NTSC) incorporated SAP as part of its multichannel television sound (MTS) specification. NTSC and MTS specifications are applied in Canada, the United States, Mexico, Chile, Brazil, Argentina, the Philippines and Taiwan.
As of June 2009, the United States only uses MTS in analog TV because of the digital transition.
The following are SAP application examples:
Techopedia’s editorial policy is centered on delivering thoroughly researched, accurate, and unbiased content. We uphold strict sourcing standards, and each page undergoes diligent review by our team of top technology experts and seasoned editors. This process ensures the integrity, relevance, and value of our content for our readers.
Margaret is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical business audience. Over the past twenty years, her IT definitions have been published by Que in an encyclopedia of technology terms and cited in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine, and Discovery Magazine. She joined Techopedia in 2011. Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages.
What is a Programming Hook? A programming hook is a feature that allows developers to insert custom code into specific...
Marshall GunnellIT & Cybersecurity Expert
What Does Julia Programming Language Mean? Julia is an open source high-level, high-performance dynamic programming language designed at MIT for...
Margaret RouseTechnology Expert
What Does JavaFX Mean?JavaFX is a software development platform designed for creating and deploying desktop and web applications that can...
Trending NewsLatest GuidesReviewsTerm of the Day