The phrase "audience dip" is correct and usable in written English.
It can be used to describe a decrease in audience engagement or interest during a presentation, performance, or event.
Example: "The speaker noticed an audience dip during the lengthy technical section of the presentation."
Alternatives: "audience drop" or "viewer decline".
But its prime-time audience dipped slightly last year from the previous year.
Meanwhile, the average television sports audience dipped from 8.7 million viewers to 6.8 million.
In the 18- to 49-year-old demographic, her audience dipped to 885,000, from 1.8 million the premiere week.
That process has proved painful, with the show's audience dipping to its lowest level for more than a decade.
Johnny Vaughan and Lisa Snowdon's breakfast show – on Heart's Global sister station 95.8 Capital FM – remained the most popular in London, although their audience dipped slightly compare to the first three months of the year.
ITV turned to Harry Potter to fill the gap left by The X Factor, which came to an end last week, but he could not stop its share of the audience dipping into single figures.
Viewers clearly aren't expected to stay for the duration – the film of the transgender children was shown in both the first and last half-hours of the programme – but the concept of a long-form show into which the audience dips in and out is still essentially more radio than TV.
The highly anticipated Patriots/Seahawks game two years ago boosted the TV audience to 114.4 million viewers, marking a new record, but last year the audience dipped once again, dropping below 112 million.
Driving home the point about mobile's impact on consumers' increased time online, is the fact that the U.S. mobile web audience as a whole climbed 82percentt (July 2011 July 201212), the app audience jumped up 85percentt, while the PC audience dipped 4percentt during that time.
Meanwhile, BBC1 drama the Interceptor also failed to catch the public's imagination, with audiences dipping below 3 million.
