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Full-Text Articles in VLSI and Circuits, Embedded and Hardware Systems
Portable High-Definition Audio Spectrum Analyzer, Alex Zahn, Jamie Corr
Portable High-Definition Audio Spectrum Analyzer, Alex Zahn, Jamie Corr
Electrical Engineering
The Portable High-definition Audio Spectrum Analyzer (PHASA) allows the user to visualize the audio frequency spectrum of an incoming line-level stereo audio signal. Upon pressing the touch screen spectrum graph, the PHASA displays the corresponding frequency and volume levels as well as crosshairs at the touched location. The PHASA features multiple left/right channel display modes— Left channel only, right channel only, both channels simultaneously, and the average between the two channels. The PHASA features multiple resolution display modes (standard-resolution and high-resolution) and multiple dynamics display modes (standard dynamics, averaging, and peak/hold). The PHASA accepts input audio via a 1/4" TRS …
Electronic Drum Machine (E.D.M), Nyssa Marie Backes
Electronic Drum Machine (E.D.M), Nyssa Marie Backes
Electrical Engineering
Many people argue that a drummer plays the most important role in a band of any genre. During live performances, the other band members rely on the drummer to keep the song moving forward at a proper steady pace. Even in recorded music, drums help listeners sing and dance along with their favorite songs. Thus, achieving success as a band, both in terms of recordings and live shows, absolutely requires a drummer. So, if a band does not have a drummer, and cannot afford the hefty cost of hiring a session drummer, a touring drummer, or both, how can they …