SIGMA (verification service): Difference between revisions
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{{short description|Television verification service technology}} | {{short description|Television verification service technology}} | ||
'''SIGMA''' is an electronic [[Verification and validation|verification]] service offered by [[Nielsen Media Research]] and is generally used for [[commercials]], [[Infomercial|infomercials]], [[video]] [[Press release|news releases]], [[Public service announcement|public service announcements]], [[Satellite media tour|satellite media tours]], and [[Electronic Press Kit|electronic press kits]].<ref name="p398">{{cite web | title=VNRs: Who's watching? How do you know? | website=ProQuest | url=https://www.proquest.com/docview/195923538?pq-origsite=gscholar&fromopenview=true | access-date=2025-06-28}}</ref> | |||
'''SIGMA''' is an electronic [[Verification and validation|verification]] service offered by [[Nielsen Media Research]] and is generally used for [[commercials]], [[Infomercial|infomercials]], [[video]] [[Press release|news releases]], [[Public service announcement|public service announcements]], [[Satellite media tour|satellite media tours]], and [[Electronic Press Kit|electronic press kits]]. | |||
It operates by encoding the SIGMA [[Encoder (digital)|encoder ID]], date of encoding, and time of encoding in lines 20 and 22 of the video signal, which is outside of the area displayed on a normal [[television]] screen (this is similar to how [[closed captioning]] is transmitted). | It operates by encoding the SIGMA [[Encoder (digital)|encoder ID]], date of encoding, and time of encoding in lines 20 and 22 of the video signal, which is outside of the area displayed on a normal [[television]] screen (this is similar to how [[closed captioning]] is transmitted). | ||
On a professional [[video monitor]] with [[Overscan|underscan]] capability activated or a computer display of the entire [[Film frame|video frame]], the SIGMA data will look like small, moving white lines at the top of the frame. Nielsen provides overnight reports of [[airplay]] in all [[Media market|television markets]] in the country. | On a professional [[video monitor]] with [[Overscan|underscan]] capability activated or a computer display of the entire [[Film frame|video frame]], the SIGMA data will look like small, moving white lines at the top of the frame. Nielsen provides overnight reports of [[airplay]] in all [[Media market|television markets]] in the country. | ||
==References== | |||
{{Reflist}} | |||
{{DEFAULTSORT:Sigma (Verification Service)}} | {{DEFAULTSORT:Sigma (Verification Service)}} | ||
Latest revision as of 21:11, 28 June 2025
Script error: No such module "Unsubst". Script error: No such module "Unsubst". Template:Short description SIGMA is an electronic verification service offered by Nielsen Media Research and is generally used for commercials, infomercials, video news releases, public service announcements, satellite media tours, and electronic press kits.[1]
It operates by encoding the SIGMA encoder ID, date of encoding, and time of encoding in lines 20 and 22 of the video signal, which is outside of the area displayed on a normal television screen (this is similar to how closed captioning is transmitted).
On a professional video monitor with underscan capability activated or a computer display of the entire video frame, the SIGMA data will look like small, moving white lines at the top of the frame. Nielsen provides overnight reports of airplay in all television markets in the country.
References
- ↑ Script error: No such module "citation/CS1".