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Polk Audio was founded by Matthew Polk, George Klopfer and Sandy Gross in 1972. The three first met one another while attending classes at Johns Hopkins University in Baltimore . After graduating in 1971, the team collaborated on producing a sound system for a local bluegrass music convention.
Wireless speakers are loudspeakers that receive audio signals using radio frequency (RF) waves rather than over audio cables. The two most popular RF frequencies that support audio transmission to wireless loudspeakers include a variation of WiFi IEEE 802.11, while others depend on Bluetooth to transmit audio data to the receiving speaker. [1]
Play-Fi is a wireless protocol for multiroom audio based on the existing 802.11 specification (b/g/n). It emerged in late 2012 as an Android streaming protocol, with iOS support added in September 2013, and Windows support later, including audio/video sync. [45] The first Play-Fi speaker was the Phorus PS1, made by DTS subsidiary Phorus. [46]
From about 1900 to the 1950s, the "lowest frequency in practical use" in recordings, broadcasting and music playback was 100 Hz. [9] When sound was developed for motion pictures, the basic RCA sound system was a single 8-inch (20 cm) speaker mounted in straight horn, an approach which was deemed unsatisfactory by Hollywood decisionmakers, who hired Western Electric engineers to develop a ...
The Speakon (stylized speakON) is a trademarked name for an electrical connector, [2] originally manufactured by Neutrik, mostly used in professional audio systems for connecting loudspeakers to amplifiers. Other manufacturers make compatible products, [3] often under the name "speaker twist connector".
Headphones that use cables typically have either a 1 ⁄ 4 inch (6.4 mm) or 1 ⁄ 8 inch (3.2 mm) phone jack for plugging the headphones into the audio source. Some headphones are wireless, using Bluetooth connectivity to receive the audio signal by radio waves from source devices like cellphones and digital players. [5]
Polk created the YouTube series Runaway Box / Man in the Box. [2] His work has also appeared on HBO, Cinemax and TNT's Inside the NBA. [3] He sang his YouTube song "One Semester of Spanish - Love Song" [4] for Kim Kardashian on Spanish television channel Telemundo. [5] [6] That video has received over 9.4 million views on YouTube. He thanked ...
"Polk Salad Annie" is a 1968 song written and performed by Tony Joe White. [1] Its lyrics describe the lifestyle of a poor rural Southern girl and her family. Traditionally, the term to describe the type of food highlighted in the song is polk or poke salad, a dish of cooked greens made from pokeweed . [ 2 ]