Timed noisemakers are a gameplay gimmick first introduced in Lips: Number One Hits.
In the first game, noisemakers were used to gain a bit of Star Stream power and to get the Party medal. This concept was later transformed in Number One Hits as to make instrumental bits of a song less tedious and more interactive.
Much like Timed Gestures, the timed noisemakers are used during interludes matching a song's beat or rhythm. A player has to shake their mic at the same time as to gain an additional multiplier and possibly the Party medal as well. These timed noisemakers are worth 3,000 base points of your score, but if you press a button on the controller to activate one of the regular noisemakers at the same time, along with shaking the mic, the timed noisemaker will be worth 5,000 instead.
Most songs released after Lips: Number One Hits contain timed noisemakers sequences in their gameplay, such as:
|"Viva la Vida"||Coldplay|
|"Lucky"||Jason Mraz feat. Colbie Caillat|
|"Oh, Pretty Woman"||Roy Orbison|
|"Apologize"||Timbaland feat. OneRepublic|