JPWO2021024692A5 - - Google Patents
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- JPWO2021024692A5 JPWO2021024692A5 JP2021537638A JP2021537638A JPWO2021024692A5 JP WO2021024692 A5 JPWO2021024692 A5 JP WO2021024692A5 JP 2021537638 A JP2021537638 A JP 2021537638A JP 2021537638 A JP2021537638 A JP 2021537638A JP WO2021024692 A5 JPWO2021024692 A5 JP WO2021024692A5
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- directional speaker
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Claims (20)
マルチチャンネル音声入力信号を取得する手段を備え、
前記マルチチャンネル音声入力信号のうち指向性スピーカチャンネルの音声入力信号の第１部分に対応する可聴音を出力するように、前記指向性スピーカを制御する手段を備え、
前記指向性スピーカチャンネルの音声入力信号の第２部分に対応する可聴音を出力させるように、前記無指向性スピーカを制御する手段を備え、
前記無指向性スピーカを制御する手段は、前記マルチチャンネル音声入力信号のうち無指向性スピーカチャンネルの音声入力信号に対応する可聴音と、前記第２部分に対応する可聴音と、を出力するように、前記無指向性スピーカを制御する、
オーディオコントローラ。 An audio controller that controls directional speakers and omnidirectional speakers.
Equipped with a means to acquire multi-channel audio input signals
A means for controlling the directional speaker so as to output an audible sound corresponding to the first portion of the directional speaker channel audio input signal among the multi-channel audio input signals is provided.
A means for controlling the omnidirectional speaker is provided so as to output an audible sound corresponding to the second part of the audio input signal of the directional speaker channel .
The means for controlling the omnidirectional speaker outputs an audible sound corresponding to the audio input signal of the omnidirectional speaker channel and an audible sound corresponding to the second portion among the multi-channel audio input signals. To control the omnidirectional speaker ,
Audio controller.
前記無指向性スピーカを制御する手段は、前記指向性スピーカチャンネルの音声入力信号のうち、前記指向性スピーカチャンネルの出力に適していない部分を前記第２部分として取り扱う、
請求項１に記載のオーディオコントローラ。 The means for controlling the directional speaker treats a portion of the audio input signal of the directional speaker channel suitable for output from the directional speaker as the first portion.
The means for controlling the omnidirectional speaker treats a portion of the audio input signal of the directional speaker channel that is not suitable for the output of the directional speaker channel as the second portion.
The audio controller according to claim 1.
前記指向性スピーカの出力周波数特性に応じた第１イコライザ係数を用いて、前記指向性スピーカチャンネルの音声入力信号を第１周波数特性信号に変換し、
前記第１周波数特性信号に対応する可聴音を出力するように、前記指向性スピーカを制御し、
前記無指向性スピーカを制御する手段は、
前記第１イコライザ係数とは異なる第２イコライザ係数を用いて、前記指向性スピーカチャンネルの音声入力信号を第２周波数特性信号に変換し、
前記第２周波数特性信号に対応する可聴音を出力するように、前記無指向性スピーカを制御する、
請求項１～請求項２の何れかに記載のオーディオコントローラ。 The means for controlling the directional speaker is
Using the first equalizer coefficient corresponding to the output frequency characteristic of the directional speaker, the audio input signal of the directional speaker channel is converted into the first frequency characteristic signal.
The directional speaker is controlled so as to output an audible sound corresponding to the first frequency characteristic signal.
The means for controlling the omnidirectional speaker is
Using a second equalizer coefficient different from the first equalizer coefficient, the audio input signal of the directional speaker channel is converted into a second frequency characteristic signal.
The omnidirectional speaker is controlled so as to output an audible sound corresponding to the second frequency characteristic signal.
The audio controller according to any one of claims 1 to 2 .
請求項３に記載のオーディオコントローラ。The audio controller according to claim 3.
請求項３に記載のオーディオコントローラ。 The means for controlling the directional speaker determines the first equalizer coefficient according to the combination of the output frequency characteristic of the directional speaker and the volume output from the directional speaker.
The audio controller according to claim 3 .
前記指向性スピーカの出力周波数特性に応じた第１フィルタ係数を用いて、前記指向性スピーカチャンネルの音声入力信号から第１周波数特性信号を抽出し、
前記第１周波数特性信号に対応する可聴音を出力するように、前記指向性スピーカを制御し、
前記無指向性スピーカを制御する手段は、
前記第１フィルタ係数とは異なる第２フィルタ係数を用いて、前記指向性スピーカチャンネルの音声入力信号から第２周波数特性信号を抽出し、
前記第２周波数特性信号に対応する可聴音を出力するように、前記無指向性スピーカを制御する、
請求項１～請求項２の何れかに記載のオーディオコントローラ。 The means for controlling the directional speaker is
Using the first filter coefficient corresponding to the output frequency characteristic of the directional speaker, the first frequency characteristic signal is extracted from the audio input signal of the directional speaker channel.
The directional speaker is controlled so as to output an audible sound corresponding to the first frequency characteristic signal.
The means for controlling the omnidirectional speaker is
A second frequency characteristic signal is extracted from the audio input signal of the directional speaker channel using a second filter coefficient different from the first filter coefficient.
The omnidirectional speaker is controlled so as to output an audible sound corresponding to the second frequency characteristic signal.
The audio controller according to any one of claims 1 to 2 .
請求項６に記載のオーディオコントローラ。 The directional speaker emits a directional sound wave reflected by a reflective member existing in the space where the directional speaker is used.
The audio controller according to claim 6.
前記使用空間における前記指向性スピーカの位置を特定する手段を備え、
前記使用空間におけるリスナの位置を特定する手段を備え、
前記３次元レイアウト、前記指向性スピーカの位置、前記リスナの位置、及び、前記リスナに知覚させるべき目標音像方向の組合せに基づいて、前記指向性スピーカの放射音圧及び放射角の組合せを決定する手段を備える、
請求項１～請求項７の何れかに記載のオーディオコントローラ。 With means to identify the 3D layout of the space in which the directional speaker is used,
A means for identifying the position of the directional speaker in the usage space is provided.
A means for identifying the position of the listener in the space of use is provided.
The combination of the radiation sound pressure and the radiation angle of the directional speaker is determined based on the combination of the three-dimensional layout, the position of the directional speaker, the position of the listener, and the target sound image direction to be perceived by the listener. Equipped with means,
The audio controller according to any one of claims 1 to 7.
前記使用空間における前記指向性スピーカの位置を特定する手段を備え、
前記使用空間におけるリスナの位置を特定する手段を備え、
前記３次元レイアウト、前記指向性スピーカの位置、前記リスナの位置、及び、前記リスナに知覚させるべき目標音像方向の組合せに基づいて、前記指向性スピーカの放射音圧及び焦点位置の組合せを決定する手段を備える、
請求項１～請求項８の何れかに記載のオーディオコントローラ。 With means to identify the 3D layout of the space in which the directional speaker is used,
A means for identifying the position of the directional speaker in the usage space is provided.
A means for identifying the position of the listener in the space of use is provided.
The combination of the radiation sound pressure and the focal position of the directional speaker is determined based on the combination of the three-dimensional layout, the position of the directional speaker, the position of the listener, and the target sound image direction to be perceived by the listener. Equipped with means,
The audio controller according to any one of claims 1 to 8.
請求項３～請求項７の何れかに記載のオーディオコントローラ。 When the second frequency characteristic signal satisfies a predetermined condition, the second frequency characteristic signal is adjusted.
The audio controller according to any one of claims 3 to 7.
請求項１０に記載のオーディオコントローラ。 When the peak of the second frequency characteristic signal is equal to or higher than a predetermined threshold value, the second frequency characteristic signal is adjusted.
The audio controller according to claim 10.
請求項１０に記載のオーディオコントローラ。 When the relationship between the first frequency characteristic signal and the second frequency characteristic signal satisfies a predetermined condition, the second frequency characteristic signal is adjusted.
The audio controller according to claim 10.
請求項１３に記載のオーディオシステム。 The plurality of directional speakers are arranged in front of the listener and in different radial directions from each other.
The audio system according to claim 13.
請求項１３又は請求項１４に記載のオーディオシステム。 At least one of the plurality of directional speakers is arranged so that the radial surface faces the top of the listener .
13. The audio system of claim 13.
請求項１３～請求項１５の何れかに記載のオーディオシステム。 Each of the plurality of directional speakers is arranged higher than the head of the listener, and the radial surfaces are arranged so as to face different directions from each other.
The audio system according to any one of claims 13 to 15.
請求項１６に記載のオーディオシステム。 The plurality of directional speakers are arranged on the ceiling of the space in which the directional speakers are used.
The audio system according to claim 16.
請求項１３～請求項１７の何れかに記載のオーディオシステム。 The omnidirectional speaker is arranged so that the radiating surface of the omnidirectional speaker faces a direction different from the radiating surface of each directional speaker.
The audio system according to any one of claims 13 to 17.
マルチチャンネル音声入力信号を取得するステップを備え、
前記マルチチャンネル音声入力信号のうち指向性スピーカチャンネルの音声入力信号の第１部分に対応する可聴音を出力するように、前記指向性スピーカを制御するステップを備え、
前記指向性スピーカチャンネルの音声入力信号の第２部分に対応する可聴音を出力させるように、前記無指向性スピーカを制御するステップを備え、
前記無指向性スピーカを制御するステップは、前記マルチチャンネル音声入力信号のうち無指向性スピーカチャンネルの音声入力信号に対応する可聴音と、前記第２部分に対応する可聴音と、を出力するように、前記無指向性スピーカを制御する、
オーディオ制御方法。 An audio control method for controlling directional speakers and omnidirectional speakers.
With steps to get multi-channel audio input signal
A step of controlling the directional speaker so as to output an audible sound corresponding to the first portion of the directional speaker channel audio input signal among the multi-channel audio input signals is provided.
A step of controlling the omnidirectional speaker so as to output an audible sound corresponding to the second part of the audio input signal of the directional speaker channel is provided .
The step of controlling the omnidirectional speaker outputs an audible sound corresponding to the audio input signal of the omnidirectional speaker channel among the multi-channel audio input signals and an audible sound corresponding to the second portion. To control the omnidirectional speaker ,
Audio control method.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019143769 | 2019-08-05 | ||
| JP2019143769 | 2019-08-05 | ||
| PCT/JP2020/026939 WO2021024692A1 (en) | 2019-08-05 | 2020-07-10 | Audio controller, audio system, program, and audio control method |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JPWO2021024692A1 JPWO2021024692A1 (en) | 2021-02-11 |
| JPWO2021024692A5 true JPWO2021024692A5 (en) | 2022-04-21 |
| JP7317396B2 JP7317396B2 (en) | 2023-07-31 |
Family
ID=74502962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2021537638A Active JP7317396B2 (en) | 2019-08-05 | 2020-07-10 | AUDIO CONTROLLER, AUDIO SYSTEM, PROGRAM AND AUDIO CONTROL METHOD |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7317396B2 (en) |
| WO (1) | WO2021024692A1 (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5825796A (en) * | 1981-08-10 | 1983-02-16 | Victor Co Of Japan Ltd | Variable directional speaker system |
| US8139797B2 (en) * | 2002-12-03 | 2012-03-20 | Bose Corporation | Directional electroacoustical transducing |
| JP4114583B2 (en) * | 2003-09-25 | 2008-07-09 | ヤマハ株式会社 | Characteristic correction system |
| JP2008035133A (en) * | 2006-07-27 | 2008-02-14 | Kenwood Corp | Audio system and speaker system |
| US8750543B2 (en) * | 2010-09-08 | 2014-06-10 | Panasonic Corporation | Sound reproduction device |
| JP6287203B2 (en) * | 2013-12-27 | 2018-03-07 | ヤマハ株式会社 | Speaker device |
| JP6329679B1 (en) * | 2017-10-03 | 2018-05-23 | ピクシーダストテクノロジーズ株式会社 | Audio controller, ultrasonic speaker, audio system, and program |
| WO2019069743A1 (en) * | 2017-10-03 | 2019-04-11 | ピクシーダストテクノロジーズ株式会社 | Audio controller, ultrasonic speaker, and audio system |
-
2020
- 2020-07-10 JP JP2021537638A patent/JP7317396B2/en active Active
- 2020-07-10 WO PCT/JP2020/026939 patent/WO2021024692A1/en active Application Filing
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