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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 .
The PTX8 has mixed stereo L/R outputs and 8 individual outputs (one per Tone Generator). When none of the individual outputs are being used, tone generators are panned across the stereo output. Tone generators 3 & 4 are panned left, 1, 2, 7, & 8 are panned center; 5 & 6 are panned right.
A red box is a phreaking device that generates tones to simulate inserting coins in pay phones, thus fooling the system into completing free calls. In the United States, a nickel is represented by one tone, a dime by two, and a quarter by a set of five. Any device capable of playing back recorded sounds can potentially be used as a red box.
The stepped-tone generator [49] is a circuit that utilizes a 556 dual timer IC. The controls are two potentiometers. Mims titled the circuit "Sound Synthesizer" in 1982 [50] then later called "Stepped-Tone Generator". The circuit creates sounds similar to a plucked violin. [49]
Schematic diagram of additive synthesis. The inputs to the oscillators are frequencies and amplitudes .. Harmonic additive synthesis is closely related to the concept of a Fourier series which is a way of expressing a periodic function as the sum of sinusoidal functions with frequencies equal to integer multiples of a common fundamental frequency.
Download as PDF; Printable version; In other projects ... the free encyclopedia. Redirect page. Redirect to: Signal generator; Retrieved from "https://en.wikipedia ...
Some were conceived before the naming of fractals in 1975, for example, the Pythagoras tree by Dutch mathematics teacher Albert E. Bosman in 1942. The development of the first fractal generating software originated in Benoit Mandelbrot 's pursuit of a generalized function for a class of shapes known as Julia sets .
The Fairlight CMI (short for Computer Musical Instrument) is a digital synthesizer, music sampler, and digital audio workstation introduced in 1979 by Fairlight. [ 5 ] [ 6 ] [ 7 ] It was based on a commercial licence of the Qasar M8 developed by Tony Furse of Creative Strategies in Sydney , Australia.
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