SOUND-EMITTING DEVICE AND SOUND-EMITTING METHOD

WIPO Patent Application WO/2014/119526

A1

The purpose of the present invention is to provide a sound-emitting device that generates a realistic sound image whereby sound is perceived as if the sound was coming from the screen of a video device. A sound signal is divided into a sound signal for a high-frequency component extracted by a high-frequency extraction means and a sound signal for a low-frequency component extracted by a low-frequency extraction means, and the resulting sound signals are respectively output. The low-frequency sound signal is output after being delayed a predetermined period of time (5ms, for example) by a delay processing means. Thus the sound of the low-frequency component is emitted with the predetermined delay (5ms, for example). In other words, the sound of the high-frequency component is emitted 5ms earlier than the low-frequency component. Thus a viewer would hear the sound of the high-frequency component sooner than the sound formed by the low-frequency component. To human beings, upon hearing the sound of the high-frequency component, it would seem as if the sound originated from a higher position than the actual position of the sound source. In addition, when the sound of the low-frequency component is emitted with the delay, the sound image of the high-frequency component becomes clear, resulting in a sense of localization. As a result, the viewer will perceive that the sound image is positioned higher than the actual position of the sound-emitting device.

SHIDOJI HIROOMI (JP)

PCT/JP2014/051729

August 07, 2014

January 27, 2014

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YAMAHA CORP (JP)

H04R3/00; G10L21/013; H04R1/40

JP2011119867A	2011-06-16
JP2010147608A	2010-07-01
JP2007288677A	2007-11-01
JP2012195800A	2012-10-11

See also references of EP 2953382A4

HONDA HIRONORI (JP)
Hironori Honda (JP)

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