Search results
Results from the WOW.Com Content Network
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 .
Sega Melody Generator 1981 1 Sega G80 arcade system board [24] Sharp Corporation: Sharp LR35902: 1989 4 Game Boy, Game Boy Color, Game Boy Advance: In Game Boy Advance, it's used for Game Boy/Game Boy Color mode and supports software-mixed PCM as a secondary function. [25] Sharp SM8521 1997 1 Game.com: Noise generator Sunsoft: Sunsoft 5B: 1992 3
15 sinewave tones, all but the last 0.127 seconds in length with 0.023 seconds of silence between tones, of the following estimated frequencies: 50, 100, 250, 400, 640, 1010, 1610, 4000, 6350, 8100, 10100, 12600, 15200, and 18300 Hz, followed by 130 ms of silence, then 820 ms of a 15200 Hz tone. [4] (Used by EMI Canada in 1982, as SDR.)
In telecommunication, a standard test tone is a pure tone with a standardized level generally used for level alignment of single links and of links in tandem. [1]For standardized test signal levels and frequencies, see MIL-STD-188-100 for United States Department of Defense (DOD) use, and the Code of Federal Regulations Title 47, part 68 for other Government agencies.
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.
Discover the best free online games at AOL.com - Play board, card, casino, puzzle and many more online games while chatting with others in real-time.
A 220 Hz carrier tone f c modulated by a 440 Hz modulating tone f m, with various choices of frequency modulation index, β. The time domain signals are illustrated above, and the corresponding spectra are shown below (spectrum amplitudes in dB). Waveforms for each β. Spectra for each β
Discover the best free online games at AOL.com - Play board, card, casino, puzzle and many more online games while chatting with others in real-time.