142:, top U.S. television networks and cable networks have been gradually required to broadcast quotas of audio described programming per-quarter, Since May 26, 2015, broadcasters have been required under the Act to provide dictations on SAP of any "emergency information" displayed in a textual format outside of the
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audio (especially during sports telecasts), often leading to the function being referred to facetiously as the "Spanish audio program". Likewise, some
Spanish-language programs may, in rare cases, offer English on SAP. Some stations may relay
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systems, selection is done through a menu as with analog television, though some provide easier access rather than having to dig down to find the option. Stations may also choose to transmit audio-only programs by assigning them to separate
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systems, audio programs are manually tuned by their subcarrier frequency, commonly around 6 MHz, often as low as 5.8 or as high as 7.2. These travel the same way as the
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SAP is often used to provide audio tracks in languages other than the native language included in the program. In the United States, this is sometimes used for
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with an optional screen of title and artist information; however, this prevents the viewer from watching the main video in the case of television stations.
456:"FCC Requests Comments on Extension of Compliance Deadline for TV Stations to Convert Non-Textual Emergency Information into Audio on SAP Channel"
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This article is about an
American analog television standard which is a part of MTS. For the secondary audio feed on television in general, see
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subchannels, somewhat more widely available, operate on a similar premise but generally carry totally unrelated programming to the main feed.
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of ±25 kHz, whereas regular FM broadcasting has a deviation of ±75 kHz. The SAP subcarrier is located at 78.670
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from 60 Hz to 12 kHz, which is less than the "regular" audio channel which runs from 50 Hz to 15 kHz.
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462:. Wilkinson Barker Knauer LLP 1800 M. Street NW Suite 800N Washington DC 20036 Fax: 202.783.5851
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483:"FCC Grants TV Stations Last-Minute Reprieve on Certain Audible Crawl Requirements"
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408:"FCC to require more shows be aired with video descriptions to aid the blind"
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Second audio programs are also available in other media. On analog
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carried on the audio carrier in the manner of stereo sound for an
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and other audio programs can be heard on subcarriers through
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of the video carrier for stability. The SAP channel contains
433:"FCC's Text to Speech Rule Takes Effect November 30, 2015"
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Alternate audio channel used in television transmissions
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Browne, Maria T.; London, Ronald G.; Holl, Brendan.
123:similarly uses SAP to carry both English and
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328:"Networks Set To Launch Video Descriptions"
355:"FCC adopts video description regulations"
194:. In turn, the MTS pilot is locked to the
111:services, or, particularly in the case of
82:) in 1984 in the United States. The NTSC
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130:SAP is also a means of distribution for
382:"FCC Expands Video Description Mandate"
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228:Though not technically an SAP channel,
74:or other languages, SAP is part of the
179:broadcast, however, as it only has a
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292:subsidiary communications authority
454:Oxenford, David (March 28, 2018).
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406:Wattles, Jackie (July 12, 2017).
481:Kessler, Warren (May 25, 2018).
32:Sound multiplex in broadcasting
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76:multichannel television sound
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221:. The SAP audio has a
144:Emergency Alert System
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219:signal-to-noise ratio
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134:of programs for the
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308:digital subchannels
230:television stations
181:frequency deviation
158:and SAP, travel on
460:Broadcast Law Blog
303:digital television
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109:NOAA Weather Radio
70:. Used mostly for
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492:April 16,
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254:cameramen
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60:broadcast
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359:Lexology
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273:discrete
246:foldback
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177:FM radio
244:as the
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98:Usage
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277:ATIS
252:and
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