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JPH0965498A - Listening position and listening method by out-head sound image localization headphone - Google Patents

Listening position and listening method by out-head sound image localization headphone

Info

Publication number
JPH0965498A
JPH0965498A JP7220036A JP22003695A JPH0965498A JP H0965498 A JPH0965498 A JP H0965498A JP 7220036 A JP7220036 A JP 7220036A JP 22003695 A JP22003695 A JP 22003695A JP H0965498 A JPH0965498 A JP H0965498A
Authority
JP
Japan
Prior art keywords
sound image
image localization
head sound
head
acoustic signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP7220036A
Other languages
Japanese (ja)
Inventor
Takahiro Kondo
孝宏 近藤
Yoshinori Kumamoto
義則 熊本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP7220036A priority Critical patent/JPH0965498A/en
Publication of JPH0965498A publication Critical patent/JPH0965498A/en
Pending legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To provide an out-head sound image localization headphone listening device and its listening method in which a listener feels an out-head localization of a sound image and a time up to actually feel the out-head localization of a sound image is reduced. SOLUTION: When a listener listens to a sound image by an out-head sound localization headphone, at first cross fade processing sections 5a, 5b connect an output to the headphone 2 to an output from an out-head sound image localization acoustic signal storage section 4 and the out-head sound image localization acoustic signal stored in the out-head sound image localization acoustic signal storage section 4 is outputted to the headphone 2. When the listener feels the out-head sound image localization, the cross fade processing sections 5a, 5b switch over the output to the headphone 2 from an output of the out-head sound image localization acoustic signal storage section 4 into an output from an out-head sound image localization processing section 3 and listens to the result of applying out-head sound image localization processing to the input acoustic signal 1.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、イヤホンおよびヘッド
ホンなどの受聴装置による受聴に利用され、特に、頭外
に音像を定位させる頭外音像定位受聴装置およびその受
聴方法に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an out-of-head sound image localization listening device which is used for listening by a listening device such as an earphone and a headphone, and particularly to an outside-head sound image localization listening device and a listening method thereof.

【0002】[0002]

【従来の技術】本発明の説明の前に、頭外音像定位処理
の基本となる原理を以下に説明する。図5(a)、
(b)は本発明の基本的な考え方となる頭外音像定位の
原理を説明した説明図である。
Prior to the description of the present invention, the basic principle of out-of-head sound image localization processing will be described below. FIG. 5 (a),
(B) is an explanatory view explaining the principle of out-of-head sound image localization, which is the basic idea of the present invention.

【0003】仮想音像位置Oにおいて音源信号uが放射
され、それが空間を伝わって左耳ELと右耳ERに到達
するものとする。このとき、左耳ELでの音響信号をy
L1、右耳ERでの音響信号をyR1とする。
It is assumed that a sound source signal u is radiated at the virtual sound image position O, propagates through the space, and reaches the left ear EL and the right ear ER. At this time, the acoustic signal at the left ear EL is y
The acoustic signal at L1 and the right ear ER is yR1.

【0004】この状態において、仮想音源位置Oから左
耳EL、右耳ERへの音の伝搬を伝達関数で表すことが
できる。この伝達関数を今後頭部伝達関数と呼ぶことに
する。
In this state, the sound propagation from the virtual sound source position O to the left ear EL and the right ear ER can be represented by a transfer function. This transfer function will be called the head-related transfer function hereinafter.

【0005】仮想音源位置Oから左耳ELへの頭部伝達
関数をTL、右耳ERへの頭部伝達関数をTRと定義す
る。音源位置での音響信号と耳での音響信号との関係
は、 yL1=TL・u yR1=TR・u で表される。
A head-related transfer function from the virtual sound source position O to the left ear EL is defined as TL, and a head-related transfer function to the right ear ER is defined as TR. The relationship between the acoustic signal at the sound source position and the acoustic signal at the ear is represented by yL1 = TL · u yR1 = TR · u.

【0006】次に、一般的にヘッドホンを用いて受聴す
る場合について考える。実際に使用するヘッドホン左耳
HLとヘッドホン右耳HRでの音響信号をそれぞれx
L、xRとする。これらヘッドホン両耳から放射された
音が、受聴者の左耳ELでyL2、右耳ERでyR2な
る音響信号として到達する。ヘッドホンを用いた受聴の
場合、クロストーク成分は十分小さいと仮定できるの
で、HLからEL、HRからERへの伝達経路における
頭部伝達関数をHMとすると、 yL2=HM・xL yR2=HM・xR となる。ここで、実際にはヘッドホン両耳HLとHRか
ら音を放射するが、あたかも点Oから聞こえるようにす
るためには、 yL1=yL2 yR1=yR2 となるようにすればよい。従って、 HM・xL=TL・u HM・xR=TR・u となり、xLとxRについて解けば、 xL=FL・u xR=FR・u とすることができる。ただし、 FL=TL/HM、FR=TR/HM である。また上式を書き直して、 xL=FM・u xR=FM・FC・u と表すことができる。ただし、 FM=TL/HM、FC=TR/TL である。すなわち音響信号uに上式で表される信号処理
を施せば、ヘッドホンを用いて受聴した場合あたかも点
Oに音像があるように聞こえ、頭外音像定位が実現でき
る。
Next, let us consider a case of generally listening using headphones. X the acoustic signals from the left ear HL of the headphones and the right ear HR of the headphones that are actually used.
L and xR. The sound emitted from both ears of these headphones arrives as an acoustic signal yL2 at the listener's left ear EL and yR2 at the right ear ER. In the case of listening using headphones, it can be assumed that the crosstalk component is sufficiently small. Therefore, assuming that the head-related transfer function in the transfer path from HL to EL and HR to ER is HM, yL2 = HM · xL yR2 = HM · xR Becomes Here, although the sound is actually emitted from both ears HL and HR of the headphones, in order to be heard from the point O, yL1 = yL2 yR1 = yR2 may be set. Therefore, HM · xL = TL · u HM · xR = TR · u, and by solving for xL and xR, xL = FL · u xR = FR · u. However, FL = TL / HM and FR = TR / HM. Further, the above equation can be rewritten to express xL = FM · u xR = FM · FC · u. However, FM = TL / HM and FC = TR / TL. That is, if the signal processing represented by the above equation is applied to the acoustic signal u, it sounds as if there is a sound image at the point O when the sound is heard using headphones, and out-of-head sound image localization can be realized.

【0007】これまでに述べた原理は、1960年代に
既に発表されており、多くの文献(代表例として、鹿島
出版会から発行されているブラウエルト・森本・後藤編
著の「空間音響」を挙げる)から公知の事実となってい
る。
The principle described so far has already been announced in the 1960s, and many documents (as a representative example, "Spatial sound" by Brauert, Morimoto, and Goto, published by Kashima Press) are listed. Has become a known fact.

【0008】[0008]

【発明が解決しようとする課題】しかし、このような頭
外音像定位処理を用いてヘッドホンなどの受聴装置によ
る頭外音像定位受聴をする場合、受聴者が音像の頭外定
位感をあまり実感できなかったり、頭外定位感を実感す
るまでにかかる時間が、受聴者によって個人差が大きい
という問題を有していた。
However, when an out-of-head sound image localization listening is performed by a hearing device such as headphones using such an out-of-head sound image localization process, the listener can not really feel the out-of-head localization feeling of the sound image. There is a problem in that the listener takes a long time to realize the feeling of out-of-head localization and there is a large individual difference depending on the listener.

【0009】本発明は上記従来の問題点を解決するもの
で、受聴者が音像の頭外定位感を実感しやすく、また音
像の頭外定位感を実感するまでにかかる時間を短縮する
ことができる頭外音像定位ヘッドホン受聴装置およびそ
の受聴方法を提供することを目的とする。
The present invention solves the above-mentioned conventional problems, and it is possible for the listener to easily perceive the out-of-head localization feeling of the sound image, and to reduce the time taken to realize the out-of-head localization feeling of the sound image. An object of the present invention is to provide an out-of-head sound image localization headphone listening device and a listening method thereof.

【0010】[0010]

【課題を解決するための手段】この目的を達成するため
に本発明の頭外音像定位ヘッドホン受聴装置およびその
受聴方法は、頭外音像定位音響信号が記憶された頭外音
像定位音響信号記憶部と、入力音響信号に対し頭外音像
定位処理を行う頭外音像定位処理部と、前記頭外音像定
位音響信号記憶部からの出力と前記頭外音像定位処理部
からの出力を切り換えるクロスフェード処理部を備えた
頭外音像定位ヘッドホン受聴装置において、受聴者が頭
外音像定位ヘッドホン受聴をする際に、最初に前記頭外
音像定位音響信号記憶部に記憶された頭外音像定位音響
信号を受聴させ、その後に前記クロスフェード処理部に
より前記頭外音像定位処理部からの出力に切り換えて受
聴させることを特徴とする。
In order to achieve this object, an out-of-head sound image localization headphone listening device and a listening method thereof according to the present invention include an out-of-head sound image localization sound signal storage section in which an out-of-head sound image localization sound signal is stored. And an out-of-head sound image localization processing unit that performs out-of-head sound image localization processing on the input acoustic signal, and a crossfade process that switches the output from the out-of-head sound image localization acoustic signal storage unit and the output from the out-of-head sound image localization processing unit. In an out-of-head sound image localization headphone listening device equipped with a head section, when the listener listens to the out-of-head sound image localization headphone, first, the out-of-head sound image localization acoustic signal stored in the out-of-head sound image localization acoustic signal storage section is heard. After that, the cross-fade processing unit switches to the output from the out-of-head sound image localization processing unit for listening.

【0011】また本発明は、頭外音像定位しやすい音響
信号が記憶された音響信号記憶部と、入力音響信号およ
び前記音響信号記憶部に記憶されている音響信号に対し
頭外音像定位処理を行う頭外音像定位処理部と、前記頭
外音像定位処理部への入力を前記入力音響信号と前記音
響信号記憶部からの出力との間で切り換えるクロスフェ
ード処理部を備えた頭外音像定位ヘッドホン受聴装置に
おいて、受聴者が頭外音像定位ヘッドホン受聴をする
際、最初に前記音響信号記憶部に記憶された音像定位し
やすい音響信号に対し前記頭外音像定位処理部において
頭外音像定位処理を行った結果を受聴させ、その後前記
入力音響信号に対し頭外音像定位処理を行った結果を受
聴させることを特徴とする。
Further, according to the present invention, an acoustic signal storage section in which an acoustic signal for which the out-of-head sound image is easily localized is stored, and an out-of-head sound image localization process is performed on the input acoustic signal and the acoustic signal stored in the acoustic signal storage section. An out-of-head sound image localization headphone including an out-of-head sound image localization processing unit to perform and a cross-fade processing unit that switches input to the out-of-head sound image localization processing unit between the input acoustic signal and the output from the acoustic signal storage unit. In the hearing device, when the listener listens to the out-of-head sound image localization headphones, the out-of-head sound image localization processing is performed in the out-of-head sound image localization processing unit for the acoustic signal that is easily stored in the acoustic signal storage unit for the first time. It is characterized in that the result obtained is received, and then the result obtained by performing the out-of-head sound image localization processing on the input acoustic signal is received.

【0012】[0012]

【作用】受聴者が頭外音像定位ヘッドホン受聴をする
際、入力音響信号に対し頭外音像定位処理を行った結果
を受聴する前に、頭外音像定位音響信号記憶部にあらか
じめ記憶された頭外音像定位しやすい音響信号をある時
間受聴させる。そして受聴者が音像の頭外定位感を実感
したら、ヘッドホンへの出力をクロスフェード処理部に
より頭外音像定位音響信号記憶部からの出力から、入力
音響信号に対し頭外音像定位処理を行う頭外音像定位処
理部からの出力に切り換える。
[Function] When the listener listens to the out-of-head sound image localization headphones, the head previously stored in the out-of-head sound image localization sound signal storage unit before the result of performing the out-of-head sound image localization process on the input acoustic signal is heard. An acoustic signal that facilitates localization of an external sound image is received for a certain period of time. When the listener realizes the out-of-head localization of the sound image, the output to the headphones is output from the out-of-head sound image localization acoustic signal storage section by the crossfade processing section, and the head that performs out-of-head localization processing for the input acoustic signal is performed. The output is switched to the output from the external sound image localization processing unit.

【0013】以上の構成で、頭外音像定位ヘッドホン受
聴をするとき、最初に頭外音像定位を実感しやすい音を
受聴させることにより、受聴者に音像の頭外定位感を植
え付けることができ、実際に受聴する音に対する頭外定
位感を早く、また明確に実感させることが可能となる。
With the above structure, when the headphone for out-of-head sound image localization headphones is heard, the listener can be impressed with the out-of-head sound localization of the sound image by first receiving the sound that makes it easy to realize the out-of-head sound image localization. It is possible to realize an out-of-head localization feeling for the sound actually heard quickly and clearly.

【0014】[0014]

【実施例】【Example】

(実施例1)以下本発明の第1の実施例について、図1
を参照しながら説明する。
(Embodiment 1) A first embodiment of the present invention will be described below with reference to FIG.
Will be described with reference to.

【0015】図1は本発明の第1の実施例を示すブロッ
ク図である。図1において、1は入力音響信号、2はヘ
ッドホン、3は入力音響信号1に対し頭外音像定位処理
を行う頭外音像定位処理部、4は頭外音像定位音響信号
が記憶された頭外音像定位音響信号記憶部、5a、5b
はヘッドホン2への出力を頭外音像定位処理部3からの
出力と頭外音像定位音響信号記憶部4からの出力との間
で切り換えるクロスフェード処理部を示す。
FIG. 1 is a block diagram showing a first embodiment of the present invention. In FIG. 1, 1 is an input acoustic signal, 2 is headphones, 3 is an out-of-head sound image localization processing unit that performs out-of-head sound image localization processing on the input sound signal 1, and 4 is an out-of-head area in which an out-of-head sound image localization acoustic signal is stored. Sound image localization acoustic signal storage unit 5a, 5b
Indicates a cross-fade processing section that switches the output to the headphones 2 between the output from the out-of-head sound image localization processing section 3 and the output from the out-of-head sound image localization acoustic signal storage section 4.

【0016】受聴者が頭外音像定位ヘッドホン受聴をす
る際に、まずクロスフェード処理部5a、5bはヘッド
ホン2への出力を頭外音像定位音響信号記憶部4からの
出力と接続し、頭外音像定位音響信号がヘッドホン2に
出力される。受聴者は音像の頭外定位感を実感したら、
ヘッドホン2への出力を頭外音像定位音響信号記憶部4
の出力から頭外音像定位処理部3からの出力に切り換
え、入力音響信号1に対し頭外音像定位処理を行った結
果を受聴する。
When the listener listens to the out-of-head sound image localization headphones, first, the crossfade processing units 5a and 5b connect the output to the headphones 2 to the output from the out-of-head sound image localization acoustic signal storage unit 4, and A sound image localization acoustic signal is output to the headphones 2. When the listener realizes the out-of-head localization of the sound image,
The output to the headphones 2 is output to the out-of-head sound image localization acoustic signal storage unit 4
Is switched to the output from the out-of-head sound image localization processing unit 3, and the result of performing the out-of-head sound image localization processing on the input acoustic signal 1 is heard.

【0017】ここで、頭外音像定位音響信号記憶部4に
記憶された頭外音像定位音響信号の一例について説明す
る。
Here, an example of the out-of-head sound image localization acoustic signal stored in the out-of-head sound image localization acoustic signal storage section 4 will be described.

【0018】頭外音像定位音響信号記憶部4に頭外音像
定位音響信号としてあらかじめ受聴者の周囲における複
数の音像位置を規定する音響信号を記憶させておく。
The out-of-head sound image localization acoustic signal storage unit 4 stores in advance, as the out-of-head sound image localization acoustic signal, an acoustic signal defining a plurality of sound image positions around the listener.

【0019】この音響信号は、ダミーヘッドで収録され
たものや、頭外音像定位しやすい音響信号に頭外音像定
位処理を施したものを用いる。
As this acoustic signal, one recorded by a dummy head or one obtained by subjecting an acoustic signal which easily localizes an out-of-head sound image to an out-of-head sound image localization process is used.

【0020】そして、音像位置が受聴者の周囲を移動す
るように出力する。ここで移動の方法として、受聴者の
周囲を回転させたり、往復させたりすると効果的であ
る。
Then, the sound image position is output so as to move around the listener. Here, as a method of moving, it is effective to rotate or reciprocate around the listener.

【0021】受聴者は音像の頭外定位感を実感したら、
ヘッドホン2への出力を頭外音像定位音響信号記憶部4
の出力から頭外音像定位処理部3からの出力に切り換
え、入力音響信号1に対し頭外音像定位処理を行った結
果を受聴する。
When the listener realizes the out-of-head localization of the sound image,
The output to the headphones 2 is output to the out-of-head sound image localization acoustic signal storage unit 4
Is switched to the output from the out-of-head sound image localization processing unit 3, and the result of performing the out-of-head sound image localization processing on the input acoustic signal 1 is heard.

【0022】なお、クロスフェード処理部5a、5bに
おける出力の切り換えは、単なるスイッチのように切り
換えても、2組の出力をフェードイン、フェードアウト
しながら切り換えても良い。
The outputs of the cross-fade processing sections 5a and 5b may be switched like a simple switch, or may be switched while fading in and out of two sets of outputs.

【0023】以上のように本実施例によれば、受聴者が
頭外音像定位ヘッドホン受聴をする際、入力音響信号に
ついて頭外音像定位処理を行った結果を受聴する前に、
あらかじめ記憶された頭外音像定位を実感しやすい音を
受聴させることにより、通常最初から入力音響信号に対
し頭外音像定位処理を行った結果を受聴させる場合と比
較して、受聴者に早く、また明確に頭外音像定位を実感
させることが可能となる。
As described above, according to this embodiment, when the listener listens to the out-of-head sound image localization headphones, before listening to the result of performing the out-of-head sound image localization processing on the input acoustic signal,
By receiving a sound that makes it easier to feel the out-of-head sound image localization stored in advance, compared with the case where the result of performing the out-of-head sound image localization process on the input acoustic signal is heard from the beginning, the listener can hear faster. Moreover, it becomes possible to clearly realize the out-of-head sound image localization.

【0024】(実施例2)以下本発明の第2の実施例に
ついて、図2を参照しながら説明する。図2は本発明の
第2の実施例を示すブロック図であり、図1のブロック
図に受聴者の向きを検出する方向検出部6を付加した構
成になっている。
(Embodiment 2) A second embodiment of the present invention will be described below with reference to FIG. FIG. 2 is a block diagram showing a second embodiment of the present invention, which has a configuration in which a direction detection unit 6 for detecting the orientation of the listener is added to the block diagram of FIG.

【0025】本実施例では、頭外音像定位音響信号記憶
部4に頭外音像定位音響信号としてあらかじめ受聴者の
周囲における複数の音像位置を規定する音響信号を記憶
させておく。
In the present embodiment, the out-of-head sound image localization sound signal storage unit 4 stores in advance, as the out-of-head sound image localization sound signals, sound signals defining a plurality of sound image positions around the listener.

【0026】そして受聴者が頭外音像定位ヘッドホン受
聴をする際に、まず方向検出部6は受聴者の向きを検出
する。またクロスフェード処理部5a、5bはヘッドホ
ン2への出力を頭外音像定位音響信号記憶部4からの出
力と接続し、頭外音像定位音響信号がヘッドホン2に出
力される。
When the listener listens to the out-of-head sound image localization headphones, the direction detector 6 first detects the orientation of the listener. In addition, the crossfade processing units 5 a and 5 b connect the output to the headphones 2 to the output from the out-of-head sound image localization acoustic signal storage unit 4, and the out-of-head sound image localization acoustic signals are output to the headphones 2.

【0027】このときヘッドホン2に出力される音響信
号は、頭外音像定位音響信号記憶部4に記憶されている
各音像位置毎の音響信号の中から、方向検出部6が検出
した受聴者の向きに対応して動的に選択される。
At this time, the acoustic signal output to the headphones 2 is the one of the listener detected by the direction detecting section 6 from the acoustic signals for each sound image position stored in the out-of-head sound image localization acoustic signal storage section 4. It is dynamically selected according to the orientation.

【0028】受聴者は音像の頭外定位感を実感したら、
ヘッドホン2への出力を頭外音像定位音響信号記憶部4
の出力から頭外音像定位処理部3からの出力に切り換
え、入力音響信号1に対し頭外音像定位処理を行った結
果を受聴する。また、このとき入力音響信号1に対し頭
外音像定位ヘッドホン受聴をする場合に、方向検出部6
を用いて音像位置を動的に変化させる受聴方法も可能で
ある。
When the listener realizes the out-of-head localization of the sound image,
The output to the headphones 2 is output to the out-of-head sound image localization acoustic signal storage unit 4
Is switched to the output from the out-of-head sound image localization processing unit 3, and the result of performing the out-of-head sound image localization processing on the input acoustic signal 1 is heard. Further, at this time, in the case of listening to the out-of-head sound image localization headphones with respect to the input acoustic signal 1, the direction detection unit 6
A listening method in which the sound image position is dynamically changed using is also possible.

【0029】以上のように本実施例によれば、実施例1
での効果に加え、受聴者は自身の動きに連動した音像位
置の変化を体感することができるため、早く、また明確
に頭外音像定位を実感することが可能となる。
As described above, according to this embodiment, the first embodiment
In addition to the effect of, the listener can feel the change in the position of the sound image that is linked to his / her own movement, so that the sound image localization outside the head can be realized quickly and clearly.

【0030】(実施例3)以下本発明の第3の実施例に
ついて、図3を参照しながら説明する。図3は本発明の
第3の実施例を示すブロック図である。
(Third Embodiment) A third embodiment of the present invention will be described below with reference to FIG. FIG. 3 is a block diagram showing a third embodiment of the present invention.

【0031】図3において、1は入力音響信号、2はヘ
ッドホン、7は頭外音像定位しやすい音響信号が記憶さ
れた音響信号記憶部、3は入力音響信号1および音響信
号記憶部7に記憶された音響信号に対し頭外音像定位処
理を行う頭外音像定位処理部、5a、5bは頭外音像定
位処理部3への入力を入力音響信号1と音響信号記憶部
7からの出力との間で切り換えるクロスフェード処理部
を示す。
In FIG. 3, 1 is an input acoustic signal, 2 is headphones, 7 is an acoustic signal storage unit in which an acoustic signal for which an out-of-head sound image is easily localized is stored, and 3 is stored in the input acoustic signal 1 and the acoustic signal storage unit 7. The out-of-head sound image localization processing units 5a and 5b, which perform out-of-head sound image localization processing on the generated acoustic signal, input the input to the out-of-head sound image localization processing unit 3 between the input acoustic signal 1 and the output from the acoustic signal storage unit 7. The cross fade processing part which switches between is shown.

【0032】受聴者が頭外音像定位ヘッドホン受聴をす
る際に、まずクロスフェード処理部5a、5bは頭外音
像定位処理部3の入力と音響信号記憶部7の出力を接続
し、音響信号記憶部7に記憶された頭外音像定位しやす
い音響信号に対し頭外音像定位処理された結果がヘッド
ホン2に出力される。
When the listener listens to the out-of-head sound image localization headphones, the crossfade processing units 5a and 5b first connect the input of the out-of-head sound image localization processing unit 3 and the output of the acoustic signal storage unit 7 to store the acoustic signal storage. The result of the out-of-head sound image localization processing performed on the acoustic signal stored in the unit 7 that facilitates out-of-head sound image localization is output to the headphones 2.

【0033】受聴者は音像の頭外定位感を実感したら、
頭外音像定位処理部3への入力を音響信号記憶部7に記
憶された音響信号から入力音響信号1に切り換え、入力
音響信号1に対し頭外音像定位処理を行った結果を受聴
する。音響信号記憶部7に記憶する音響信号としては、
白色雑音や音色が複雑な楽器を用いた音楽など、広い範
囲の周波数成分を含んだものが頭外音像定位しやすく、
望ましい。
When the listener realizes the out-of-head localization of the sound image,
The input to the out-of-head sound image localization processing section 3 is switched from the acoustic signal stored in the acoustic signal storage section 7 to the input acoustic signal 1, and the result of performing the out-of-head sound image localization processing on the input acoustic signal 1 is heard. As the acoustic signal stored in the acoustic signal storage unit 7,
It is easy to localize an out-of-head sound image for things that include a wide range of frequency components, such as music that uses white noise and instruments with complex tones.
desirable.

【0034】ここで、音響信号記憶部7に記憶された音
響信号に対し頭外音像定位処理を行った結果を受聴者に
受聴させる方法の一例について説明する。音響信号記憶
部7に記憶された音響信号に対し頭外音像定位処理を行
った結果を受聴者に受聴させる際に、音像位置が受聴者
の周囲を移動させるように出力する。移動の方法とし
て、受聴者の周囲を回転させたり、往復させたりすると
効果的である。受聴者は音像の頭外定位感を実感した
ら、頭外音像定位処理部3への入力を音響信号記憶部7
の出力から入力音響信号1に切り換え、入力音響信号1
に対し頭外音像定位処理を行った結果を受聴する。
Here, an example of a method for allowing the listener to hear the result of performing the out-of-head sound image localization processing on the acoustic signal stored in the acoustic signal storage unit 7 will be described. When the listener receives the result of performing the out-of-head sound image localization processing on the acoustic signal stored in the acoustic signal storage unit 7, the sound image position is output so as to move around the listener. As a method of movement, it is effective to rotate or reciprocate around the listener. When the listener realizes the out-of-head localization of the sound image, the listener inputs the input to the out-of-head sound image localization processing section 3 into the acoustic signal storage section 7.
Input sound signal 1 by switching from the output of
Listen to the result of the out-of-head sound image localization processing.

【0035】以上のように本実施例によれば、受聴者が
頭外音像定位ヘッドホン受聴をする際、入力音響信号に
ついて頭外音像定位処理を行った結果を受聴する前に、
あらかじめ記憶された頭外音像定位を実感しやすい音響
信号に対し頭外音像定位処理を行った結果を受聴させる
ことにより、通常最初から入力音響信号に対し頭外音像
定位処理を行った結果を受聴させる場合と比較して、受
聴者に早く、また明確に頭外音像定位を実感させること
が可能となる。
As described above, according to the present embodiment, when the listener listens to the out-of-head sound image localization headphones, before listening to the result of the out-of-head sound image localization processing of the input acoustic signal,
By listening to the result of the out-of-head sound image localization processing on the acoustic signal that is easy to experience the out-of-head sound image localization stored in advance, usually the result of performing the out-of-head sound image localization processing on the input acoustic signal is heard from the beginning. As compared with the case where it is performed, it is possible for the listener to realize the sound localization outside the head more quickly and clearly.

【0036】(実施例4)以下本発明の第4の実施例に
ついて、図4を参照しながら説明する。図4は本発明の
第4の実施例を示すブロック図であり、図3に受聴者の
向きを検出する方向検出部6を付加した構成となってい
る。
(Embodiment 4) A fourth embodiment of the present invention will be described below with reference to FIG. FIG. 4 is a block diagram showing a fourth embodiment of the present invention, which has a configuration in which a direction detection unit 6 for detecting the orientation of the listener is added to FIG.

【0037】受聴者が頭外音像定位ヘッドホン受聴をす
る際に、まず方向検出部6は受聴者の向きを検出する。
またクロスフェード処理部5a、5bは頭外音像定位処
理部3の入力と音響信号記憶部7の出力を接続し、音響
信号記憶部7に記憶された頭外音像定位しやすい音響信
号に対し頭外音像定位処理された結果がヘッドホン2に
出力される。
When the listener listens to the out-of-head sound image localization headphones, the direction detector 6 first detects the orientation of the listener.
Further, the crossfade processing units 5a and 5b connect the input of the out-of-head sound image localization processing unit 3 and the output of the acoustic signal storage unit 7 to the head for the acoustic signal stored in the acoustic signal storage unit 7 that facilitates out-of-head sound image localization. The result of the external sound image localization processing is output to the headphones 2.

【0038】このとき頭外音像定位処理部3は、方向検
出部6が検出した受聴者の向きに対応した音像位置に頭
外定位させる。これにより、ヘッドホン2には受聴者の
向きに対応した音像位置を持つ音響信号が出力される。
At this time, the out-of-head sound image localization processing unit 3 performs out-of-head localization at the sound image position corresponding to the orientation of the listener detected by the direction detection unit 6. As a result, a sound signal having a sound image position corresponding to the orientation of the listener is output to the headphones 2.

【0039】受聴者は音像の頭外定位感を実感したら、
頭外音像定位処理部3への入力を音響信号記憶部7の出
力から入力音響信号1に切り換え、入力音響信号1に対
し頭外音像定位処理を行った結果を受聴する。
When the listener realizes the out-of-head localization of the sound image,
The input to the out-of-head sound image localization processing unit 3 is switched from the output of the sound signal storage unit 7 to the input sound signal 1, and the result of performing the out-of-head sound image localization process on the input sound signal 1 is heard.

【0040】またこのとき入力音響信号1に対し頭外音
像定位ヘッドホン受聴をする場合、方向検出部6を用い
て音像位置を動的に変化させる受聴方法も可能である。
Further, at this time, in the case of listening to the out-of-head sound image localization headphones with respect to the input acoustic signal 1, a listening method of dynamically changing the sound image position by using the direction detecting section 6 is also possible.

【0041】以上のように本実施例によっても、実施例
2と同様の効果を有することができる。
As described above, according to this embodiment, the same effect as that of the second embodiment can be obtained.

【0042】[0042]

【発明の効果】以下のように本発明は、頭外音像定位音
響信号が記憶された頭外音像定位音響信号記憶部と、入
力音響信号に対し頭外音像定位処理を行う頭外音像定位
処理部と、前記頭外音像定位音響信号記憶部からの出力
と前記頭外音像定位処理部からの出力を切り換えるクロ
スフェード処理部を備えた頭外音像定位ヘッドホン受聴
装置において、受聴者が頭外音像定位ヘッドホン受聴を
する際に、前記頭外音像定位音響信号記憶部に記憶され
た、頭外音像定位音響信号を受聴させることにより、通
常最初から入力音響信号に対し頭外音像定位処理を行っ
た結果を受聴させる場合と比較して、受聴者に早く、ま
た明確に頭外音像定位を実感させることが可能となる。
As described below, according to the present invention, an out-of-head sound image localization acoustic signal storage unit in which an out-of-head sound image localization acoustic signal is stored, and an out-of-head sound image localization process for performing an out-of-head sound image localization process on an input acoustic signal. Section, an out-of-head sound image localization headphone listening device including a cross-fade processing section that switches the output from the out-of-head sound image localization acoustic signal storage section and the output from the out-of-head sound image localization processing section, in which the listener receives the out-of-head sound image. When listening to the localization headphones, the out-of-head sound image localization acoustic signal stored in the out-of-head sound image localization acoustic signal storage unit is received, so that the out-of-head sound image localization process is normally performed on the input acoustic signal from the beginning. Compared with the case of listening to the result, it is possible to make the listener realize the out-of-head sound image localization more quickly and clearly.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の第1の実施例を示すブロック構成図FIG. 1 is a block diagram showing a first embodiment of the present invention.

【図2】本発明の第2の実施例を示すブロック構成図FIG. 2 is a block diagram showing a second embodiment of the present invention.

【図3】本発明の第3の実施例を示すブロック構成図FIG. 3 is a block diagram showing a third embodiment of the present invention.

【図4】本発明の第4の実施例を示すブロック構成図FIG. 4 is a block diagram showing a fourth embodiment of the present invention.

【図5】頭外音像定位の原理説明図FIG. 5 is an explanatory diagram of the principle of out-of-head sound image localization.

【符号の説明】[Explanation of symbols]

1 入力音響信号 2 ヘッドホン 3 頭外音像定位処理部 4 頭外音像定位音響信号記憶部 5a,5b クロスフェード処理部 6 方向検出部 7 音響信号記憶部 8a,8b ヘッドホンスピーカ 1 Input acoustic signal 2 Headphones 3 Out-of-head sound image localization processing section 4 Out-of-head sound image localization acoustic signal storage section 5a, 5b Crossfade processing section 6 Direction detection section 7 Acoustic signal storage section 8a, 8b Headphone speaker

Claims (9)

【特許請求の範囲】[Claims] 【請求項1】音響信号に頭外音像定位演算を施して、音
像を頭外に定位させる頭外音像定位ヘッドホン受聴装置
であって、 頭外音像定位音響信号が記憶された頭外音像定位音響信
号記憶部と、 入力音響信号に対し頭外音像定位処理を行う頭外音像定
位処理部と、 前記頭外音像定位音響信号記憶部からの出力と前記頭外
音像定位処理部からの出力を切り換えるクロスフェード
処理部とを備えたことを特徴とする頭外音像定位ヘッド
ホン受聴装置。
1. A headphone listening device for out-of-head sound image localization, wherein an out-of-head sound image localization operation is performed on an acoustic signal to localize the sound image, wherein the out-of-head sound image localization sound is stored. A signal storage unit, an out-of-head sound image localization processing unit that performs out-of-head sound image localization processing on an input acoustic signal, an output from the out-of-head sound image localization acoustic signal storage unit, and an output from the out-of-head sound image localization processing unit An out-of-head sound image localization headphone listening device comprising a cross-fade processing section.
【請求項2】請求項1記載の頭外音像定位ヘッドホン受
聴装置を用い、受聴者が頭外音像定位ヘッドホン受聴を
する際、 最初に頭外音像定位音響信号記憶部に記憶された頭外音
像定位音響信号を受聴させ、 その後にクロスフェード処理部により頭外音像定位処理
部からの出力に切り換えて受聴させることを特徴とする
頭外音像定位ヘッドホン受聴方法。
2. The out-of-head sound image stored in the out-of-head sound image localization acoustic signal storage unit when the listener uses the out-of-head sound image localization headphone listening device according to claim 1 to listen to the out-of-head sound image localization headphone. An out-of-head sound image localization headphone listening method, wherein a localization sound signal is received, and then the cross-fade processing unit switches to an output from the out-of-head sound image localization processing unit for listening.
【請求項3】頭外音像定位音響信号が、 実音場中の音源位置を規定する頭外音像定位情報と、頭
外音像定位を実感しやすい音響信号との畳み込み演算に
よるものであることを特徴とする請求項2記載の頭外音
像定位ヘッドホン受聴方法。
3. The out-of-head sound image localization acoustic signal is obtained by convolution calculation of the out-of-head sound image localization information defining the sound source position in the actual sound field and the acoustic signal in which the out-of-head sound image localization is easily felt. The method for listening to out-of-head sound image localization headphones according to claim 2.
【請求項4】頭外音像定位音響信号を、音像位置が受聴
者の周囲を移動するように受聴させることを特徴とする
請求項2または3記載の頭外音像定位ヘッドホン受聴方
法。
4. The out-of-head sound image localization headphone listening method according to claim 2, wherein the out-of-head sound image localization acoustic signal is received so that the sound image position moves around the listener.
【請求項5】請求項1記載の頭外音像定位ヘッドホン受
聴装置に方向検出部を付加し、 頭外音像定位音響信号を、方向検出部により検出した受
聴者の向きに応じて音像位置が変化するように受聴させ
ることを特徴とする請求項2または3記載の頭外音像定
位ヘッドホン受聴方法。
5. An out-of-head sound image localization headphone listening device according to claim 1, further comprising a direction detecting section, wherein the sound image position of the out-of-head sound image localization acoustic signal changes according to the orientation of the listener detected by the direction detecting section. The method for listening to out-of-head sound image localization headphones according to claim 2 or 3, wherein the listening is performed as follows.
【請求項6】音響信号に頭外音像定位演算を施して、音
像を頭外に定位させる頭外音像定位ヘッドホン受聴装置
であって、 頭外音像定位しやすい音響信号が記憶された音響信号記
憶部と、 入力音響信号および前記音響信号記憶部に記憶されてい
る音響信号に対し頭外音像定位処理を行う頭外音像定位
処理部と、 前記頭外音像定位処理部への入力を前記入力音響信号と
前記音響信号記憶部からの出力との間で切り換えるクロ
スフェード処理部とを備えたことを特徴とする頭外音像
定位ヘッドホン受聴装置。
6. An out-of-head sound localization headphone listening device for performing an out-of-head sound image localization operation on an acoustic signal to localize the sound image out of the head, wherein an acoustic signal memory storing an acoustic signal for easily locating an out-of-head sound image. Section, an out-of-head sound image localization processing section that performs out-of-head sound image localization processing on the input sound signal and the sound signal stored in the sound signal storage section, and the input to the out-of-head sound image localization processing section is the input sound. An out-of-head sound image localization headphone listening device comprising: a crossfade processing unit that switches between a signal and an output from the acoustic signal storage unit.
【請求項7】請求項6記載の頭外音像定位ヘッドホン受
聴装置を用い、受聴者が頭外音像定位ヘッドホン受聴を
する際、 最初に音響信号記憶部に記憶された頭外音像定位しやす
い音響信号に対し頭外音像定位処理部において頭外音像
定位処理を行った結果を受聴させ、 その後入力音響信号に対し頭外音像定位処理を行った結
果を受聴させることを特徴とする頭外音像定位ヘッドホ
ン受聴方法。
7. An out-of-head sound image that is easily stored in an acoustic signal storage unit when the listener uses the out-of-head sound image localization headphone listening device according to claim 6 when the listener listens to the out-of-head sound image localization headphones. Out-of-head sound image localization characterized by receiving the result of out-of-head sound image localization processing in the out-of-head sound image localization processing unit for the signal and then listening to the result of performing out-of-head sound image localization processing for the input acoustic signal. Headphone listening method.
【請求項8】音響信号記憶部に記憶された頭外音像定位
しやすい音響信号に対し、頭外音像定位処理部が音像位
置が受聴者の周囲を移動するように頭外音像定位処理を
行い、その演算結果を受聴させることを特徴とする請求
項7記載の頭外音像定位ヘッドホン受聴方法。
8. An out-of-head sound image localization process is performed by an out-of-head sound image localization processing unit on an audio signal stored in an acoustic signal storage unit that facilitates out-of-head sound image localization so that the sound image position moves around the listener. The method for listening to out-of-head sound localization headphones according to claim 7, characterized in that the result of the calculation is received.
【請求項9】請求項6記載の頭外音像定位ヘッドホン受
聴装置に方向検出部を付加し、 音響信号記憶部に記憶された頭外音像定位しやすい音響
信号に対し、頭外音像定位処理部が方向検出部により検
出した受聴者の向きに応じて音像位置が変化するように
頭外音像定位処理を行った結果を受聴させることを特徴
とする請求項7記載の頭外音像定位ヘッドホン受聴方
法。
9. An out-of-head sound image localization processing unit for an out-of-head sound image localization headphone listening device according to claim 6, further comprising a direction detection unit, for an acoustic signal stored in an acoustic signal storage unit for easily out-of-head sound image localization. The method for listening to out-of-head sound localization headphones according to claim 7, wherein the result of the out-of-head sound image localization processing is performed so that the sound image position changes according to the orientation of the listener detected by the direction detection unit. .
JP7220036A 1995-08-29 1995-08-29 Listening position and listening method by out-head sound image localization headphone Pending JPH0965498A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7220036A JPH0965498A (en) 1995-08-29 1995-08-29 Listening position and listening method by out-head sound image localization headphone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7220036A JPH0965498A (en) 1995-08-29 1995-08-29 Listening position and listening method by out-head sound image localization headphone

Publications (1)

Publication Number Publication Date
JPH0965498A true JPH0965498A (en) 1997-03-07

Family

ID=16744926

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7220036A Pending JPH0965498A (en) 1995-08-29 1995-08-29 Listening position and listening method by out-head sound image localization headphone

Country Status (1)

Country Link
JP (1) JPH0965498A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007214815A (en) * 2006-02-08 2007-08-23 Nagaoka Univ Of Technology Out-of-head sound image localization device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007214815A (en) * 2006-02-08 2007-08-23 Nagaoka Univ Of Technology Out-of-head sound image localization device
JP4691662B2 (en) * 2006-02-08 2011-06-01 国立大学法人長岡技術科学大学 Out-of-head sound localization device

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