neil gaiman make good art A radio signal is usually very weak and should not travel long distances on its own. A method to handle this challenge is to use a strategy called Amplitude Modulation or AM. The technique imposes an additional signal on the already existing carrier wave that transmits the info. The amplitude in the second signal varies (increases or decreases) correspondingly on the amplitude in the first wave. These variations in amplitude or strength are employed through the receiver in order to reproduce audio and visual information (different sounds and images). Karaoke is a lot more popular than ever and millions of fans around the world are jumping on the bandwagon for the most popular revolution in personal musical entertainment ahead along in decades. After all, who doesn't imagine as a famous singer? With Karaoke, even the least talented crooner has a chance for that big "moment" beneath the spotlight when everything all comes together. Rock Band is a group of music video gaming developed by Harmonix Music Systems and MTV Games, and provided by Electronic Arts to the Nintendo DS, iPhone, PlayStation 2, PlayStation 3, PSP, Wii, and Xbox 360 game systems. The series, inspired by Harmonix's previous efforts on the Guitar Hero series, allows around four players to simulate the performance of popular rock music songs by messing around with controllers modeled after musical instruments. Players can start to play the lead guitar, bass guitar, and drums parts to songs, as well as sing in a USB microphone. Players are scored on his or her capacity to match scrolling musical notes while playing instruments, by their capacity to match the singer's pitch on vocals.