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The following quotation summarizes its facilities: [T]he SN76477 generates complex audio signal waveforms by combining the outputs of a low frequency oscillator, variable frequency (voltage controlled) oscillator (VCO) and noise source, modulating the resulting composite signal with a selected envelope and, finally, adjusting the signal's attack and decay periods.
Chipset (OPS operator chip, EGS envelope generator chip) [34] [58] [59] Yamaha YM2151 (a.k.a. OPM) 1983 32 8 4 Mid-1980s to mid-1990s arcade systems (the most prolific FM chip used in arcades), Sharp X1 and X68000 computers, MSX (CX5M, Yamaha SFG-01 and SFG-05 FM Sound Synthesizer Unit), Yamaha digital synthesizers (DX21, DX27, DX100)
The Yamaha YM2149F SSG (Software-controlled Sound Generator) chip has the same pinout as the AY-3-8910, with the minor difference that pin 26 could halve the master clock if pulled low. If left unconnected, as it would be if replacing an AY-3-8910 chip, an internal resistor pulls the pin high, so the master clock is not halved.
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.
The Texas Instruments SN76489 is a programmable sound generator chip from the 1980s, used to create music and sound effects on computers and video game systems. Initially developed by Texas Instruments for its TI-99/4A home computer, it was later updated and widely adopted in systems like the BBC Micro , ColecoVision , IBM PCjr , Sega's Master ...
A frequency synthesizer is an electronic circuit that generates a range of frequencies from a single reference frequency. Frequency synthesizers are used in devices such as radio receivers , televisions , mobile telephones , radiotelephones , walkie-talkies , CB radios , cable television converter boxes , satellite receivers, and GPS systems.
It's filled with synth history, an inside look at the Moog factory plus interviews with synth icons, musicians and Moog employees. 'Patch and Tweak with Moog' is a book dedicated to tips, tricks ...
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 .