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The waveforms' frequency and volume (and noise's tone and volume) are typically shaped using an envelope and/or mixed before being sent to the audio output stage. [1] Many PSGs feature three tone channels and one noise channel including the AY-3-8910, SN76489 and MOS Technology 6581.
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.
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 ...
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
A Shepard tone, named after Roger Shepard, is a sound consisting of a superposition of sine waves separated by octaves. When played with the bass pitch of the tone moving upward or downward, it is referred to as the Shepard scale .
The facility is now the home of two adorable new cubs named Zola and Lulu
Fred has a high-pitched voice and is hyperactive, achieved by speeding up the footage. [2] Cruikshank has described the channel as "programming for kids by kids" [1] as a parody of people who "think that everyone is so interested in them". He believes that viewers either "automatically love Fred or automatically hate Fred, there is no in-between".
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