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Audio restoration is the process of removing imperfections (such as hiss, impulse noise, crackle, wow and flutter, background noise, and mains hum) from sound recordings. Audio restoration can be performed directly on the recording medium (for example, washing a gramophone record with a cleansing solution), or on a digital representation of the ...
Louis Anthony Rossmann (born November 19, 1988) [3] [4] is an American independent electronics technician, YouTuber, and right to repair activist. He is the owner and operator of Rossmann Repair Group in Austin, Texas (formerly New York City), a computer repair shop established in 2007 which specializes in logic board-level repair of MacBooks.
Software engineer Mark Lentczner used the Apple Sound Chip, his innovation of sound for the Macintosh, to play the C major fourth chord used in the Macintosh II that was programmed in software. [11] Variations of this sound were employed until Apple sound designer Jim Reekes created the startup chime in the Quadra 700 through the Quadra 800. [12]
A first-generation Mac Pro, showing the aluminum case derived from the Power Mac G5. Apple said that an Intel-based replacement for the 2003's PowerPC-based Power Mac G5 machines had been expected for some time before the Mac Pro was formally announced on August 7, 2006, at the annual Apple Worldwide Developers Conference (WWDC). [4]
The 15-inch MacBook Pro weighs the same as the 15-inch aluminum PowerBook G4, but is 0.1 inches (0.25 cm) deeper, 0.4 inches (1.0 cm) wider, and 0.1 inches (0.25 cm) thinner. [7] Other changes from the PowerBook include a built-in iSight webcam and the inclusion of MagSafe, a magnetic power connector designed to detach easily when yanked.
The updated MacBook Pro 13- and the 15-inch would each have up to a claimed 7 hours of battery life, while the 17-inch would keep its 8-hour capacity. [32] [34] Some sources even reported up to eight hours of battery life for the 13- and 15-inch MacBook Pro computers during casual use, [35] while others reported around six hours. [27]
Record restoration, a particular kind of audio restoration, is the process of converting the analog signal stored on gramophone records (either 78 rpm shellac, or 45 and 33⅓ rpm vinyl) into digital audio files that can then be edited with computer software and eventually stored on a hard-drive, recorded to digital tape, or burned to a CD or DVD.
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