Audio News for September 27, 2011

by | Sep 27, 2011 | Audio News

Latest Surround Technology Sets New Standards – Harman High Performance AV introduced their QuantumLogic Surround at the recent CEDIA Expo. It creates an unprecedented 7.1 or 9.1-channel surround sound listening experience from any source—whether mono, stereo or multichannel to begin with. It can even provide 12.1-channels in the new Lexicon flagship MP-20 preamp/surround processor. QLS employs new audio algorithms and signal processing techniques to achieve a new level of surround sound realism in home and professional audio applications. It extracts signal streams and impulse responses from the original recording, identifying individual voices and instruments as well as reverberant spatial information, and then re-authoring them into a precise multichannel soundfield. Its Aesthetic Engine uses patented filter bank technology and psychoacoustic modeling to create an immersive multichannel listening experience with clarity, detail and image specificity. It is compatible with all popular surround sound formats as well as mono or stereo. (No information was provided on playback of discrete height-information sources such as some early SACDs and MD&G’s 2+2+2 format.)
There are three levels of QuantumLogic Surround: QLS 7.1, QLS Height (which adds two left and right front height channels) and QLS 3D, as in the Lexicon MP-20 preamp/surround processor (which provides five height channels: left, center, right and two surround channels added to a 7.1-channel configuration). The Aesthetic Engine functions in the frequency domain rather than the time domain. QLS identifies “Spatial Slices” from the original soundstage, and reassembles them into a multichannel surround sound format. In addition, it extracts reverberation information from the original and re-creates multiple channels of it for redistribution. Spatial Slices can be of a single instrument, vocalist or sound effect. QLS identifies the location within the stereo image and then re-directs the Spatial Slices around the listening area in a controlled manner, maintaining imaging accuracy as well as smooth and realistic tonal balance. The Lexicon MP-20 also has Harman Soundfield Management processing, which provides four independent subwoofer outputs to minimize seat-to-seat variation in bass response over a wide area.
Classical Music News – Kurt Sanderling, one of the 20th century’s great conductors, died Sept. 18 in Berlin at age 99.  He was conductor of the Moscow Orchestra and then the Leningrad Philharmonic. In 1960 he took over the East Berlin Symphony and later was conductor of the Dresden Staatsoper. He first conducted the London Philharmonia in 1972, replacing Otto Klemperer.  The Guardian said “…a Sanderling concert was always an event, the conductor a rare figure to be respected…”  Cellist Alisa Weilerstein and jazz percussionist/composer Dafnis Prieto were among the 22 fellows receiving $500,000 over the next five years from the MacArthur Foundation’s “genius grants.” The foundation says the grants are “”not a reward for past accomplishment, but rather an investment in a person’s originality, insight, and potential.”
Three Brands to Offer Deep-Bass in Their Soundbars – By the end of this year the new Hybrid Pressure Acceleration System (H-PAS) invented by Solus/Clements speakers, will be offered in a powered soundbar to be offered under their name as well as by Atlantic Technology and Outlaw Audio. It delivers bass down to 47Hz at -3dB with using a separate subwoofer, allowing for smaller cabinets, smaller drivers and lower costs. Eliminating the separate subwoofer will make speaker systems more appealing to many as well as for use in secondary rooms in a home. Atlantic’s planned soundbar will use Trident technology to deliver virtual surround sound, and also includes a Dolby Digital 5.1 decoder, plus an IR remote.

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