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SPATIAL SOUND GENERATION DEVICE, SPATIAL SOUND GENERATION SYSTEM, SPATIAL SOUND GENERATION METHOD, AND SPATIAL SOUND GENERATION PROGRAM NEW

外国特許コード F180009432
整理番号 (AF23P002)
掲載日 2018年7月23日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2017JP037043
国際公開番号 WO 2018070487
国際出願日 平成29年10月12日(2017.10.12)
国際公開日 平成30年4月19日(2018.4.19)
優先権データ
  • 特願2016-203129 (2016.10.14) JP
発明の名称 (英語) SPATIAL SOUND GENERATION DEVICE, SPATIAL SOUND GENERATION SYSTEM, SPATIAL SOUND GENERATION METHOD, AND SPATIAL SOUND GENERATION PROGRAM NEW
発明の概要(英語) Provided is a spatial sound generation device (100) provided with a memory unit (106) and a control unit (102), and connected to a plurality of loudspeakers (116). In the spatial sound generation device, the control unit applies an inverse system while varying transmission properties with time according to the movement of a sound generating body on the basis of information showing the moving sound generating body, and calculates a plurality of input signals for each of the loudspeakers from a sound source signal representing the sounds generated by the sound generating body. In boundary sound field control, the inverse system outputs the input signals according to the transmission properties within a space in which the plurality of loudspeakers are arranged, so that three-dimensional acoustic wave fronts are formed in the loudspeakers on the basis of the input signals.
特許請求の範囲(英語) [claim1]
1. A plurality of speakers connected to, the storage unit and the control unit and the sound generating apparatus in a space, wherein the control unit, based on the information indicative of the sounding body is moved, said sounding body in accordance with the movement of the transfer characteristic of the time intervals and an inverse system while changing the power is applied, said sounding body sound generated from the sound source signal, wherein a plurality of input signals to each of the speaker is calculated, the inverse system, wherein the boundary of the sound field in the control of the speaker based on an input signal into a three-dimensional acoustic wave front so as to be formed, wherein the plurality of speakers disposed in a space according to the transmission characteristics of the input signal is output, characterized in that the sound generating apparatus space.
[claim2]
2. The sound generating apparatus according to claim 1 in space, the storage unit stores, in the virtual three-dimensional space based on the position coordinates of the sounding body used as the observing target sound pressure up to the boundary of the region of the transfer characteristic of the time-varying transfer function and the inverse system defined by the stored reproducing signal output function, wherein the information indicating the sounding body is moved, in the virtual three-dimensional space and the position coordinates of the sound source signal of the sounding body comprises using a time function and, wherein the control unit, wherein the sound source signal of the sounding body and a time function of the position coordinates, wherein the output signal for reproduction of said input signal is input to the function can be derived, characterized in that the sound generating apparatus space.
[claim3]
3. The sound generating apparatus according to claim 1 in space, said moving of the sounding body is information indicating, in a virtual three-dimensional space and coordinates of a position of the sounding body to the time function of the sounding body comprises a sound source signal, wherein the control unit, based on the time function of the position coordinate points, said sounding body from the position coordinate of the boundary of a region to be observed in the sound pressure of the transfer characteristic of the time-varying transfer function is calculated and, wherein the transfer function based on the inverse system, said input signal from the sound signals is calculated, and the sound generating apparatus space.
[claim4]
4. The sound generating apparatus according to claim 2 or 3 in space, wherein the control unit, wherein the time function of the position coordinates, of the user in the virtual three-dimensional space and the sounding body and is calculated based on the relative positional relationship between the characterized in that, the sound generating apparatus space.
[claim5]
5. The sound generating apparatus according to claim 4 in space, said space the sound generating apparatus further comprises a display unit, wherein the control unit controls the display unit on the virtual three-dimensional space of said sounding body so as to control the display, characterized in that, the sound generating apparatus space.
[claim6]
6. The sound generating device according to claim 5 space, wherein the device further includes a sound generating space body sonic transducers, wherein the control unit controls the user according to the content information so as to control the vibration transducer, characterized in that, the sound generating apparatus space.
[claim7]
7. Any one of claims 2-6 spatial sound generation device, wherein the control unit, the virtual three-dimensional space and/or the sound-production unit of the user in accordance with the speed of sound reproduction for reproducing Doppler and computes a signal wavefront, the sound generating apparatus space.
[claim8]
8. Any one of claims 2-7 spatial sound generation device, and further, wherein the information on the movement of the sounding body and connected to the detection unit, wherein the control unit, based on the detection result of said detecting unit, wherein the sound source signal of the sounding body and at least one of a time function of the position coordinates can be calculated, and, the sound generating apparatus space.
[claim9]
9. The sound generating apparatus according to claim 8 in space, wherein the detection unit, operation of the part of at least one body of the user is detected, wherein the control unit, wherein said body part is detected by the detection unit in response to the action, wherein the sound source signal of the sounding body and said position coordinates of the calculated time function, and characterized in that, the sound generating apparatus space.
[claim10]
10. The sound generating apparatus according to claim 9 in space, wherein the control unit, wherein said body part is detected by the detection unit in response to the operation of the display of the content information display control section to perform a control, wherein said body part in response to operation of said content information in accordance with the change, and the sound source signal of the sounding body corresponding to the time function of the calculated position coordinate, and, the sound generating apparatus space.
[claim11]
11. The sound generating apparatus according to claim 10 in space, wherein the detection unit, detecting the motion of a finger of the hand of the user, wherein the display control means, the detecting unit detects motion of a finger of said hand is detected by the instruction involves movement of the content information by performing the display control, characterized in that, the sound generating apparatus space.
[claim12]
12. The sound generating apparatus according to claim 10 or 11 in space, said display control means, to control the head mounted display, the virtual three-dimensional space of said content information in a three-dimensional display control, characterized in that, the sound generating apparatus space.
[claim13]
13. Claims 1-12 as claimed in any one of the sound generating apparatus in space, wherein the control unit, for forming a signal indicative of the acoustic wave in a reproduction mode in which reproduction mode and a conversion means, the sound generating apparatus space.
[claim14]
14. Any one of claims 1-13 spatial sound generation device, wherein the control unit, wherein the sound signals in accordance with the movement of the sounding body in performing the rounding, as a result of the rounding of the input signal from the sound source signal and to calculate, space the sound generating apparatus.
[claim15]
15. And a plurality of speakers, a storage unit, the control unit and a sound generating system space, wherein the control unit, based on the information indicative of the sounding body is moved, said sounding body in accordance with the movement of the transfer characteristic of the time intervals while changing the applied reverse system, wherein the sounding body sound generated from the sound source signal, wherein the plurality of input signals to each of the speaker is calculated, the inverse system, wherein the boundary of the sound field control in the loudspeaker based on an input signal into a three-dimensional acoustic wave so as to form, wherein the plurality of speakers disposed in a space according to the transmission characteristics of the input signal can be outputted, characterized in that the sound generating system space.
[claim16]
16. A plurality of speakers connected to, the storage unit and the control unit that causes a computer to execute a method of generating an acoustic space, wherein the control portion, based on the information indicative of the sounding body is moved, said sounding body in accordance with the movement of the transfer characteristic of the time intervals while changing the applied reverse system, wherein the sounding body sound generated from the sound source signals, each of the plurality of input signal to the speaker in the step of calculating a, wherein the inverse system, said input signal in the sound field controlling boundary based on three-dimensional acoustic wave front of the speaker so as to form, wherein the plurality of speakers disposed in a space according to the transmission characteristics of the input signal is output, and, wherein each of the speaker based on an input signal and the step of controlling, and executing the method for generating an acoustic space.
[claim17]
17. A plurality of speakers connected to, the storage unit and the control unit is provided which comprises a sound generating space for causing a computer to execute a program, to the controller, based on the information indicative of the sounding body moves, wherein for each time in accordance with the movement of the sounding body while varying the transfer characteristic of the reverse by applying a system, wherein the data indicating the sound emitted from the sound source signal from the sounding body, wherein the plurality of input signals to each of the speaker in the step of calculating, the inverse system, the sound field controlling boundary in the speaker based on an input signal into a three-dimensional acoustic wave front so as to be formed, wherein the plurality of speakers disposed in a space according to the transmission characteristics of the input signal is output, and, wherein each of the speaker based on an input signal and the step of controlling, the sound generating space for executing the program.
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • JAPAN SCIENCE AND TECHNOLOGY AGENCY
  • 発明者(英語)
  • ISE SHIRO
  • KITAGAWA YUICHI
国際特許分類(IPC)
指定国 (WO201870487)
National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DJ DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS JO JP KE KG KH KN KP KR KW KZ LA LC LK LR LS LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL SM ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN ST TD TG
参考情報 (研究プロジェクト等) CREST Creation of Human-Harmonized Information Technology for Convivial Society AREA
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