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  2. Wireless keyboard - Wikipedia

    en.wikipedia.org/wiki/Wireless_keyboard

    Wireless keyboards based on infrared technology use light waves to transmit signals to other infrared-enabled devices. In case of radio frequency technology, a wireless keyboard communicates using signals which range from 27 MHz to up to 2.4 GHz. The majority of wireless keyboards today work on 2.4 GHz radio frequency.

  3. Battleship/Connect Four/Sorry!/Trouble - Wikipedia

    en.wikipedia.org/wiki/Battleship/Connect_Four/...

    Battleship/Connect Four/Sorry!/Trouble is a compilation video game developed by British studio Gravity-I and published by DSI Games. It was released for Nintendo DS in North America on August 17, 2006 and is the fifth of six compilation video games of Hasbro board games developed by Gravity-I and released on Nintendo handhelds.

  4. Waldorf Music - Wikipedia

    en.wikipedia.org/wiki/Waldorf_Music

    PPG Wave 2.x series (1981-1987), designed by Wolfgang Palm, was a predecessor of Waldorf The WAVE and Microwave. After the demise of PPG in 1987, Waldorf carried forward the legacy of wavetable synthesis. Using an ASIC designed by Wolfgang Palm, the company developed the Microwave and later the WAVE synthesizers. However, Palm was never ...

  5. Wave music - Wikipedia

    en.wikipedia.org/wiki/Wave_music

    Wave is a genre of bass music and a visual art style that emerged in the early 2010s [8] in online communities. It is characterized by atmospheric melodies and harmonies, melodic and heavy bass such as reese, modern trap drums, chopped vocal samples processed with reverb and delay, and arpeggiators. [5]

  6. Sound amplification by stimulated emission of radiation

    en.wikipedia.org/wiki/Sound_amplification_by...

    The fact that a SASER operates on principles remarkably similar to a laser, can lead to an easier way of understanding the relevant operation circumstances. Instead of a feedback-built potent wave of electromagnetic radiation, a SASER delivers a potent sound wave. Some methods for sound amplification of GHz–THz have been proposed so far.

  7. Trap music - Wikipedia

    en.wikipedia.org/wiki/Trap_music

    Trap is a subgenre of hip-hop which originated in the Southern United States, with lyrical references to trap starting in 1991 but the modern sound of trap appearing in 1999. [ 1 ] [ 3 ] The genre gets its name from the Atlanta slang term " trap house ", a house used exclusively to sell drugs. [ 4 ]

  8. Envelope (music) - Wikipedia

    en.wikipedia.org/wiki/Envelope_(music)

    The General Instrument AY-3-8910 sound chip includes only a hold time parameter; the sustain level is not programmable. Another common variation in the same vein is the AHDSR (attack, hold, decay, sustain, release) envelope, in which the hold parameter controls how long the envelope stays at full volume before entering the decay phase.

  9. Additive synthesis - Wikipedia

    en.wikipedia.org/wiki/Additive_synthesis

    Additive synthesis more broadly may mean sound synthesis techniques that sum simple elements to create more complex timbres, even when the elements are not sine waves. [ 7 ] [ 8 ] For example, F. Richard Moore listed additive synthesis as one of the "four basic categories" of sound synthesis alongside subtractive synthesis , nonlinear synthesis ...