enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. WSPR (amateur radio software) - Wikipedia

    en.wikipedia.org/wiki/WSPR_(amateur_radio_software)

    nsym = (50 + K − 1) × 2 = 162. [3] Keying rate is 12000 ⁄ 8192 = 1.4648 baud. Modulation is continuous phase 4 FSK, with 1.4648 Hz tone separation. An Agilent Modulation Domain Analyzer 53310A showing the narrow band 4-FSK signal produced by a Raspberry Pi. Occupied bandwidth is about 6 Hz

  3. Programmable sound generator - Wikipedia

    en.wikipedia.org/wiki/Programmable_sound_generator

    A programmable sound generator (PSG) is a sound chip that generates (or synthesizes) audio wave signals built from one or more basic waveforms, and often some kind of noise. PSGs use a relatively simple method of creating sound compared to other methods such as frequency modulation synthesis or pulse-code modulation .

  4. Left 4 Dead 2 - Wikipedia

    en.wikipedia.org/wiki/Left_4_Dead_2

    Left 4 Dead 2 is a 2009 first-person shooter video game developed and published by Valve.The sequel to Left 4 Dead (2008) and the second game in the Left 4 Dead series, it was released for Microsoft Windows and Xbox 360 in November 2009, Mac OS X in October 2010, and Linux in July 2013.

  5. Left 4 Dead (franchise) - Wikipedia

    en.wikipedia.org/wiki/Left_4_Dead_(franchise)

    Left 4 Dead is a series of cooperative first-person shooter survival horror video games created by Turtle Rock Studios and published by Valve.Set in the days after a pandemic outbreak of a viral strain transforming people into zombie-like feral creatures, the games follow the adventures of four survivors attempting to reach safe houses and military rescue while fending off the attacking hordes.

  6. List of PC-88 games - Wikipedia

    en.wikipedia.org/wiki/List_of_PC-88_games

    Shiryō Sensen 2 - War of the Dead Part 2: June 1989: Fun Project: Victor Musical Industries: Shiryō Sensen - War of the Dead: Browning no Fukkatsu: January 1989: Fun Project: Victor Musical Industries: Shuten Dōji: September 1990: Enix: Sid Meier's Pirates! July 1989: MicroProse: MicroProse Silpheed: December 5, 1986: Game Arts: Game Arts ...

  7. Beat (acoustics) - Wikipedia

    en.wikipedia.org/wiki/Beat_(acoustics)

    For example, if a 530 Hz pure tone is presented to a subject's right ear, while a 520 Hz pure tone is presented to the subject's left ear, the listener will hear beating at a rate of 10 Hz, just as if the two tones were presented monaurally, but the beating will have an element of lateral motion as well.

  8. Audio frequency - Wikipedia

    en.wikipedia.org/wiki/Audio_frequency

    The SI unit of frequency is the hertz (Hz). It is the property of sound that most determines pitch. [1] The generally accepted standard hearing range for humans is 20 to 20,000 Hz. [2] [3] [4] In air at atmospheric pressure, these represent sound waves with wavelengths of 17 metres (56 ft) to 1.7

  9. Chiptune - Wikipedia

    en.wikipedia.org/wiki/Chiptune

    The Game Boy uses two pulse channels (switchable between 12.5%, 25%, 50% and 75% wave duty cycle), a channel for a 4-bit waveform generator, and a pseudo-random-noise generator. The Commodore 64 however used the MOS Technology SID chip which offered 3 channels, each switchable between pulse, saw-tooth, triangle, and noise.