I I make a raspberry noise with my mouth while I look at the TV or the LED clock on the microwave, the TV picture and the Digits go wavy and start dance about. If I play about with the pitch of the sound, I can get some really extreme effects and get the numbers to bounce slowly about 10cm up and down in opposite directions in a Mexican wave pattern. Does anyone else know what I'm going on about and if so, how many people exactly will be making raspberry noises for the same purpose at any one instant? Thanks :)
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