Tech Hut

US2008130905

A sound reproduction system comprises a left and right speakers located in close proximity, and a sound processor which provides audio signals to the pair of speakers. The sound processor preferably derives a cancellation signal from the difference between the left and right channels. The resulting difference signal is scaled, delayed (if necessary), and spectrally modified before being added to the left channel and, in opposite polarity, to the right channel. The spectral modification to the difference channel preferably takes the form of a low-frequency boost over a specified frequency range, in order to restore the correct timbral balance after the differencing process. Additional phase-compensating all-pass networks may be inserted in the difference channel to correct for any extra phase shift contributed by the spectral modifying circuit. The technique may be used in a surround sound system.

US2008130923

An optimal listening position for the multi-channel audio sound system is determined. A listening area and other audio playback controls may also be defined or modified by a listener. During subsequent audio playback, an imager captures images of at least a portion of the listener. When the listener has moved to a position that is different from a previous position, one or more audio parameters are adjusted for at least one channel in the multi-channel audio system in order to reposition the initial or previous optimal listening position to the current position of the listener. When the listener moves outside the listening area, an out of bounds response is initiated to disable or control the audio playback until the listener moves to a position within the listening area.

US2008130908

Certain aspects relate to providing an at least one audio source to at least one user. Certain aspects relate to selectively modifying an at least one first sound source to be provided to the at least one user, wherein the at least one first sound source is combined with an at least one second sound source, and wherein the selectively modifying is performed relative to the at least one audio source based at least in part on at least some specific information of the at least one first sound source. Other aspects relate to selectively modifying the at least one first sound source to be provided to the at least one user relative to the at least one second sound source based at least in part on at least some specific information of the at least one first sound source.

US2008127786

A hand tool with an earphone comprises a hand tool having an earphone hole for output sound from the hand tool. The hand tool is installed with an earphone. The hand tool is an electronic spanner. The hand tool is installed with a digital processor which stores with music file. The digital processor stores setting values about twisting force.

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5.1 Channels VT1723 Audio Chipset PCI Sound Card $10.20

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USB 2.0 External 7.1-Channel Audio Sound Card Adapter $6.08

Encore Electronic 8 Channel PCI Sound Card Audio Video $13.90

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Azden 311-HT/A3 True Div Wireless Mic with handheld $264.53 Uni-directional mic with internal antennaSuper heterodyne receiver with dual antenna true diversity system 1/4" output jack for recording or mixerOperational range up to 300' Freqency response: 50Hz-18KHzFrequency A3 or A4 other frequencies available by special orderIncludes metal case and AC adapter...

New Coby DVD Home Theater System Includes Compact DVD Player With 2.1 Channel Speakers $54.56 Multiple language, subtitle, and camera angle support. Picture zoom function. FCC/FDA approved & ETL listed. 2.1 Channel surround sound system with 75W total output power. 2 Full range satellite speakers. Wood subwoofer with tuned port for deep bass response. Full function remote control. AV Cable. 2 x 1.5V AAA batteries included....

New Dakota Alert MURS 2-Way Handheld Radio 5 Channels 38 Sub Channels 6 Rechargeable AA Batteries $87.23 Receives alert signals from the MURS Alert transmitter and also can beused for two way voice communications between other MURS transceivers. FCC also allows you to use MURS without a license (although other radio services require a license, MURS is license free!). When an alert signal is received from the MURS Alert transmitter the HT will sound off with the voice of the alert signal and will al...

Gemini MM1800 19 5U Professional 4-Channel Rack Mounted Mixer (1 Each) $279.95 Gemini MM1800 19 5U Professional 4-Channel Rack Mounted Mixer (1 Each)...

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Discovery Essential Dinosaur Pack $6.30 Genre: Television: Discovery ChannelRating: NRRelease Date: 7-OCT-2008Media Type: DVD...

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Chicago Transit Authority (DVD - Quadraphonic) $50.00 Rhino Handmade raids the vault again to release Chicago's chart-topping debut, CHICAGO TRANSIT AUTHORITY in true, discrete Quadraphonic sound for the first time ever. Mastered from early 1970s Quad mixes, the DVD offers unheralded takes on the band's unique fusion of rock and jazz. CHICAGO TRANSIT AUTHORITY rose to the top of the charts in 1969, with 12 unforgettable tracks including the hit sin...