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Full-Text Articles in Engineering
Psuedo-Randomly Controlled Analog Synthesizer, Jared Huntington
Psuedo-Randomly Controlled Analog Synthesizer, Jared Huntington
Electrical Engineering
The goal of this project was to design and build a portable box recreating classic sounds heard in science fiction films. These include sounds ranging from droning hums to bloops and bleeps. Currently no other device is made specifically for generating these sounds. The user controls and manipulates the sounds produced using a combination of switches and knobs to shape the sound generation. The sounds are generated using analog electronics. The project was successful in meeting the desired goal by designing and building a Randomizer, MIDI controller, VCO, LFO, VCA, Ring Modulator, and Fuzz Section. The resulting device is useful …
Pic Controlled Two-Band Stereo Audio Equalizer, Tim Brown
Pic Controlled Two-Band Stereo Audio Equalizer, Tim Brown
Electrical Engineering
The purpose of this project is to build a PIC (Peripheral Interface Controlled) controlled two-band stereo audio equalizer. The input audio from each stereo channel is separated into four different analog filters. The PIC has been programmed in BASIC and is used to route the audio signal to one of the four analog filters. Three of the filters have been preset to a certain frequency response (Jazz, Natural, and Bass), and the fourth filter has the unique ability to be controlled manually. Stereo potentiometers have been installed on the “Manual” filter to allow the user to change the frequency response …