Auditory Distance Control Using a Variable-Directivity Loudspeaker
نویسندگان
چکیده
منابع مشابه
Controlling the perceived distance of an auditory object by manipulation of loudspeaker directivity.
This work presents a method to control the perceived distance of an auditory object by changing the directivity pattern of a loudspeaker and consequently the direct-to-reverberant ratio at the listening spot. Control of the directivity pattern is achieved by beamforming using a compact multi-driver loudspeaker unit. A small-sized cubic array consisting of six drivers is assembled, and per drive...
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Similar expressions hold for b n. To achieve the modulation, the array is weighted with the time-varying linear combination c n = (t)a n + f1 ? (t)gb n (5) where (t) is a smoothly varying function having an amplitude ranging from zero to one and a period much less than the reverberation time of the acoustic enclosure. This time-varying linear combination results in a time-varying beamwidth of r...
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A sound reproduction system usually consists of several types of loudspeakers to cater to sophisticated applications. The directivity of a loudspeaker is a measure of its efficiency in sending sounds to a particular direction instead of all directions. Demand to control the directivity of a sound reproduction system is gaining momentumwith many new designs of directional loudspeakers, including...
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A method to improve the directivity of the microstrip coupler is presented. The width of the coupler is modified for phase velocity compensation which results in high directivity. Using this procedure, a 15 dB coupler is designed and simulated at 0.9 GHz using SONNET software. A high directivity of 46 dB is obtained. The validity of the design concept is verified and compared with conventional ...
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The correct level alignment of multichannel reproduction systems is critical to the quality of the reproduction. This, the third paper discusses the results of three experiments employing the nine test signals discussed in paper I. Experiments employing six subjects using the method of adjustment have been conducted in a standard listening rooms using a symmetrical loudspeaker set-up. The influ...
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ژورنال
عنوان ژورنال: Applied Sciences
سال: 2017
ISSN: 2076-3417
DOI: 10.3390/app7070666