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The Poulsen arc converter had a tuned circuit connected across the arc. The arc converter consisted of a chamber in which the arc burned in hydrogen gas between a carbon cathode and a water-cooled copper anode. Above and below this chamber there were two series field coils surrounding and energizing the two poles of the magnetic circuit.
Several generic digital data connection standards are designed to carry audio/video data along with other data and power: USB was designed as a single connector to support all needs, including any generic data, audio/video, power, and more; DisplayLink is its most successful Audio+Video protocol. Until the 3.0 revision, very low data rates ...
The company was founded by William Z. Johnson in 1970 and was originally located in Minneapolis, Minnesota.ARC moved from Plymouth to Maple Grove, MN [3] in August 2018. . Johnson began designing custom audio electronics in the early 1950s and was the former owner of Electronic Industries, a specialty audio retail store in Minneapolis until the mid-1
ARC (Argonaut RISC Core) embedded system processors are a family of 32-bit and 64-bit reduced instruction set computer (RISC) central processing units (CPUs) originally designed by ARC International. ARC processors are configurable and extensible for a wide range of uses in system on a chip (SoC) devices, including storage, digital home, mobile ...
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Comprehensive tutorial about the why and how of lock-in amplifiers. Lock-in Technical Notes Range of Technical and Applications notes describing the design of digital and analog lock-ins, and guide to their specifications from SIGNAL RECOVERY. PCSC-Lock-in Tool for data acquisition on acoustic chopping frequency using a computer sound card.
Smacky Open-source C++ software for playing (monophonic) music on the PC speaker. Site for old PC without sound cards. Programming the PC Speaker, by Mark Feldman for PC-GPE. Programming the PC Speaker, by Phil Inch: part 1, part 2 (includes a very detailed explanation of how to play back PCM audio on the PC speaker, and why it works)
Most video coding standards, such as the H.26x and MPEG formats, typically use motion-compensated DCT video coding (block motion compensation). [70] [71] Most video codecs are used alongside audio compression techniques to store the separate but complementary data streams as one combined package using so-called container formats. [72]