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New Measurement Techniques for Portable Listening Devices: Technical Report - October 2013
Multi-Radiation Speaker System
Conventional multi-way speaker systems use one or more speakers to reproduce one of the divided hands of the audio spectrum. The new speaker system introduced in this paper is a 2-way system having a tweeter that radiates sound in the forward motion. However, this tweeter also has three horns on its back-one facing upward, and two sideways. These horns work as the equivalents of multiple out-of-phase sound sources, and the sounds from these horns eventually join the forward-radiated sound to create the final composite sound of the tweeter. The paper presents a model analysis of how this new tweeter expands the stereo perspective of the speaker system, and reports on its effect through measured data and the impressions obtained at hearing tests.
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