JPS5944198A - Headphone device - Google Patents
Headphone deviceInfo
- Publication number
- JPS5944198A JPS5944198A JP57155409A JP15540982A JPS5944198A JP S5944198 A JPS5944198 A JP S5944198A JP 57155409 A JP57155409 A JP 57155409A JP 15540982 A JP15540982 A JP 15540982A JP S5944198 A JPS5944198 A JP S5944198A
- Authority
- JP
- Japan
- Prior art keywords
- head
- section
- output
- turning angle
- sound image
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
- H04S7/30—Control circuits for electronic adaptation of the sound field
- H04S7/302—Electronic adaptation of stereophonic sound system to listener position or orientation
- H04S7/303—Tracking of listener position or orientation
- H04S7/304—For headphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R5/00—Stereophonic arrangements
- H04R5/033—Headphones for stereophonic communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1041—Mechanical or electronic switches, or control elements
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Stereophonic System (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明はテレビジョン受像機からの音声信号をヘッドホ
ン音像頭外定位で受聴することができるように構成した
へ、ドホン装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a telephone apparatus configured to be able to listen to audio signals from a television receiver with headphone sound image localization outside the head.
従来例の構成とその問題点
一般に、テレビジョン受像機からの音声信号をヘッドホ
ン受聴する場合、ヘッドホン受聴者が聴感上認識する音
像の定位方向は、常にそのヘッドホン受聴者の動きに応
じたある方向において不変である。第1図はヘッドホン
受聴者が感する音像定位SIの位置移動の様子を示すも
ので、図中、1はテレビシコン受像機、2は受聴者、s
a、sbはヘッドホンである。Conventional configuration and its problems In general, when listening to audio signals from a television receiver through headphones, the localization direction of the sound image perceived by the headphone listener is always a certain direction depending on the movement of the headphone listener. is unchanged. Figure 1 shows how the sound image localization SI changes as perceived by a headphone listener. In the figure, 1 is the television receiver, 2 is the listener, and s
a and sb are headphones.
いま、ヘッドホン311,3bに左右チャンネルの信号
入力によシ受聴者2は正面方向人の方向、つまりテレビ
ジョン受像機1の画面の方向に音像ε工を感じていると
する。次に受聴者2が頭を角度θだけ右方向に回転した
場合は第2図のように音像S I’も角度θだけ移動し
、もとのテレビジョン受像機1の画面の方向からθ移動
する様に感するものである。即ち従来のヘッドホン受聴
方式は受聴者の動きθとは無関係に常に受聴者の正面を
基準として音像が形成されるからでアリ、給体空間座標
系と全く無関係なものと云える。したがって従来のヘッ
ドホン受聴方式では頭部移動により音像方向がテレビジ
ョン受像機1の画面からズレ、テレビ音声のスピーカ再
生時受聴で感する様な画面音場一体感を失なってしまう
ものであった。Now, suppose that the listener 2 feels a sound image ε effect in the direction of the person in front of him, that is, in the direction of the screen of the television receiver 1, when left and right channel signals are input to the headphones 311 and 3b. Next, when the listener 2 turns his head to the right by an angle θ, the sound image S I' also moves by an angle θ, as shown in FIG. It feels like it does. That is, in the conventional headphone listening system, a sound image is always formed with the front of the listener as a reference regardless of the listener's movement θ, so it can be said that it is completely unrelated to the spatial coordinate system of the feeder. Therefore, in the conventional headphone listening system, the direction of the sound image deviates from the screen of the television receiver 1 due to head movement, and the sense of unity of the screen and sound field that is felt when listening to TV sound played through speakers is lost. .
発明の目的
本発明の目的は、ヘッドホン受聴でありながら常に空間
のある一定方向(例えばテレビ画面中央方向)に音像が
定位し、受聴者頭部の動きに無関係に給体空間定位して
いるかのごとく聴者に感じさせる効果、即ちあたかもス
ピーカ再生音を受聴しているかの様に音像定位を知覚さ
せることができるヘッドホン装置を提供することにある
。Purpose of the Invention An object of the present invention is to always localize the sound image in a certain spatial direction (for example, toward the center of the TV screen) even when listening with headphones, and to make it possible to determine whether the sound image is localized in the space regardless of the movement of the listener's head. It is an object of the present invention to provide a headphone device that can make a listener feel the sound image localization as if they were listening to sound reproduced by a speaker.
発明の構成
本発明のヘッドホン装置は、テレビ7ヨン受像機の偏向
コイルからの漏えい磁界を基準磁界として検出する検知
部の出力を制御信号とし、この制御信号によりテレビジ
ョン受像機からの音声信号を信号源とするへ、ドホン音
像頭外定位機能を有する回路手段の伝達特性を頭部の動
きに応じて制御するように構成したものである。Structure of the Invention The headphone device of the present invention uses the output of a detection section that detects a leakage magnetic field from a deflection coil of a television receiver as a reference magnetic field as a control signal, and uses this control signal to detect an audio signal from the television receiver. The signal source is configured to control the transmission characteristics of a circuit means having a Dohon sound image extra-head localization function in accordance with the movement of the head.
すなわち、ヘッドホン受聴において任意の絶対空間に音
像を固定々位するためには、へ、ドホン受聴者の頭部の
変位を検知し、この検知信号によって頭部変位分だけ聴
感音像を基の任意固定位置に移動制御ぜしめる必要があ
る。更にヘッドホンの音像定位は頭外に定位するもので
なければならない。そのため、上記検出手段にテレビジ
ョン受信機に内蔵される水平偏向コイルを流れる偏向電
流によって発生する漏えい磁界を活用し、検出手段とし
て、新たに独自の基準磁界発生器を用いずにへ、ドホン
音像の任意位置固定、即ち、音像絶対空間定位を実現す
るものである。In other words, in order to fix the sound image in an arbitrary absolute space when listening to headphones, the displacement of the listener's head is detected, and this detection signal is used to arbitrarily fix the sound image based on the auditory sound image by the head displacement. It is necessary to provide movement control to the position. Furthermore, the sound image localization of the headphones must be localized outside the head. Therefore, the leakage magnetic field generated by the deflection current flowing through the horizontal deflection coil built into the television receiver is used as the detection means, and the detection means does not require a new original reference magnetic field generator. In other words, it realizes absolute spatial localization of the sound image.
実施例の説明
第3図は本発明の一実施例を示しており、第2図におい
てテレビジョン受像機1内の偏向コイル4には常時流れ
る偏向電流により、その偏向コイル4を中心とした強力
な交流磁界が発生しており、テレビジョン受像機1のキ
ャビネットが非磁性体であることからキャビネ、ト外に
漏えい磁界イが発生している。したがって、この漏えい
磁界イは受聴者2の頭部近傍に到達する。上記漏えい磁
界を検出するピックアップコイル11を受聴者2の頭部
に装着されるヘッドホン装置本体に設けると、このピッ
クアップコイル11に発生する誘起電圧は受聴者頭部変
位に比例しだ計となり、音像定位コントロールの為の制
御信号と成りつる。ここではピックア、ブ誘起電圧を直
流制御信号発生部12にて直流電圧に変換し、音像頭外
定位を実現する信号伝達関数変換部13の諸定数を制御
せしめる構成としている。DESCRIPTION OF EMBODIMENTS FIG. 3 shows an embodiment of the present invention. In FIG. An alternating current magnetic field is generated, and since the cabinet of the television receiver 1 is made of a non-magnetic material, a leakage magnetic field is generated outside the cabinet. Therefore, this leakage magnetic field I reaches the vicinity of the listener's 2 head. When a pickup coil 11 for detecting the above-mentioned leakage magnetic field is provided in the main body of the headphone device worn on the head of the listener 2, the induced voltage generated in the pickup coil 11 becomes proportional to the displacement of the listener's head, and the sound image Serves as a control signal for localization control. Here, the configuration is such that the pick-up induced voltage is converted into a DC voltage by a DC control signal generation section 12, and various constants of a signal transfer function conversion section 13 for realizing sound image outside-of-the-head localization are controlled.
上記信号伝達関数変換部13ば、両耳時間差調整部14
、両耳振巾差調整部15、間接信号(ティレー信号)発
生部16で構成されるものであり、直流制御信号発生部
12からの制御信号出力がOの時、任意位置(ここでは
、テレビジョン受像機1の画面中央位置)に定位する様
に各々設定されており、例えば両耳時間差O1両耳振巾
差○、間接信号発生部16の出力はテレビジョン受像機
1の画面位置に頭外距離感を感じさせる所定のレベルの
状態とする。The signal transfer function converter 13 and the binaural time difference adjuster 14
, a binaural amplitude difference adjustment section 15, and an indirect signal (Tillet signal) generation section 16. For example, the binaural time difference O1, the binaural amplitude difference ○, and the output of the indirect signal generator 16 are set to be localized at the center position of the screen of the television receiver 1). The state is set to a predetermined level that gives a sense of external distance.
具体的に上述した両耳伝達関数変換部13は第4図に示
す様に構成される。即ち、アナログ信号遅延素子21.
22とこれを駆動する周波数直流制御型クロックゼネレ
ータ23.24及び、イコライザー25〜28と直流制
御ポリウム29.30とで構成される両耳振巾差調整部
から成り、制御信号反転回路31からとの2つの直流制
御信号電圧により、クロックゼネレータ23,24.並
びにポリウム29.30’jz制御せしめるものである
。Specifically, the binaural transfer function converter 13 described above is configured as shown in FIG. That is, the analog signal delay element 21.
22, a frequency DC-controlled clock generator 23, 24 for driving the clock generator, and a binaural amplitude difference adjusting unit composed of equalizers 25 to 28 and a DC-controlled polyurethane 29, 30, and a control signal inversion circuit 31. The clock generators 23, 24 . It also controls polyurethane 29.30'jz.
この制御電圧により、回転角θに見合う両耳時間差は上
記22のクロックゼネレータ23.24の周波数制御に
より達成され、クロックゼネレータの一方(LCH狽1
])の周波数は初期基準周波数より高め、他方(RCH
側)を逆に低くする様に調節されるものである。又、両
耳差振巾兼調整部もイコライザ出力が入力される直流制
御ボリウム29゜300レベルが制御電圧でコントロー
ルされる事に、cシ中高音域のレベル差が所望のレベル
差に設定でれるものである。With this control voltage, a binaural time difference commensurate with the rotation angle θ is achieved by frequency control of the 22 clock generators 23 and 24, and one of the clock generators (LCH
]) is higher than the initial reference frequency, and the other (RCH
It is adjusted so that the side) is lowered. In addition, the binaural difference amplitude/adjustment section also controls the level of the DC control volume 29°300 to which the equalizer output is input by the control voltage, so that the level difference between the middle and high frequencies can be set to the desired level difference. It is something that can be done.
このような構成において、テレビジョン受像機1の画面
に正対していたヘッドホン受聴晋2が頭部を右方向へθ
たけ回転させると、ピノクアツブコイル11には回転角
θに比例した誘起電圧が発生し、直流制御信号発生部1
2によって直流制御信号電圧に変換される。そして、こ
の直流制御信号電圧による両耳伝達関数変換部13の制
御の自動調節は基準音像定位々置に留まる様にほぼリア
ルタイムで行なわれ、スピーカ等の実音源音場を受聴し
ているかのどとく感じられる為より自然な頭外定位再生
を実現することができるものである。In such a configuration, the headphone listening device 2, which was facing the screen of the television receiver 1, turns its head to the right θ.
When rotated for a long time, an induced voltage proportional to the rotation angle θ is generated in the pinoctub coil 11, and the DC control signal generator 1
2 into a DC control signal voltage. The automatic adjustment of the control of the binaural transfer function converting unit 13 using this DC control signal voltage is performed almost in real time so that the reference sound image remains in the fixed position, and the sound field of the actual sound source such as the speaker is heard. Since it can be felt, it is possible to realize more natural extra-head localization reproduction.
ところで、この様な頭部回転検出制御ループ全構成する
場合、基準磁界発生用の専用のソレノイド或いはループ
コイルを設置し、かつこれらを駆動する信号増巾器を必
要とするものであるか、テレビジョン受像機1の音声信
号のヘッドホン受聴に適用する本実施例の場合では、頭
部回転検出の為の基準磁界発生用ループコイル全テレビ
ジョン受像機の偏向コイルで置換し15,75 Kt−
1zの交流漏えい磁界を利用する為、容易に音像定位の
制御が実現できるメリノ)k有するものである。By the way, when configuring a complete head rotation detection control loop like this, it is necessary to install a dedicated solenoid or loop coil for generating the reference magnetic field, and also to use a signal amplifier to drive these. In the case of this embodiment, which is applied to headphone listening of the audio signal of the television receiver 1, the loop coil for generating a reference magnetic field for head rotation detection is entirely replaced with the deflection coil of the television receiver, and the loop coil is 15,75 Kt-
Since the AC leakage magnetic field of 1z is used, control of sound image localization can be easily realized.
発明の効果
以上、詳述したように不発明によれば、テレビジョン受
像機の偏向コイルからの漏えい磁界を基準磁界として検
出する検知部の出力を制御信号とし、この制御信号によ
りテレビジョン受像機からの音声信号を信号源とするヘ
ッドポン音像頭外定位回路手段の伝達特性を頭部の動き
に応じて制御するように構成したので、ヘッドホン受聴
でありながら常に空間のある一定方向に音像が定位し、
受聴者頭部の動きに無関係に給体空間定位している工う
な聴感ヲ与えることができ、もってスピーカ受聴と同様
の音像定位を認識させることができる利点がある。しか
も、基準磁界はテレビジョン受像機の偏向コイルの漏え
い磁界を利用するので、別途磁気信号発生部を必要とし
ない利点を有する。As described in detail above, according to the invention, the output of the detection section that detects the leakage magnetic field from the deflection coil of the television receiver as a reference magnetic field is used as a control signal, and this control signal causes the television receiver to The head-pond sound image external localization circuit means, whose signal source is the audio signal from death,
This has the advantage that it is possible to give the listener the sensation of being localized in the space regardless of the movement of the listener's head, thereby making it possible to recognize the same sound image localization as when listening through speakers. Furthermore, since the reference magnetic field utilizes the leakage magnetic field of the deflection coil of the television receiver, there is an advantage that a separate magnetic signal generating section is not required.
第1図および第2図は従来のヘッドホン受像における音
像定位の説明図、第5図は本発明のヘッドホン装置の一
実施例を示すブロック図、第4図は同装置の要部具体回
路構成図である。
1・・・・・テレビジョン受像機、2・・・・・・受聴
者、3a、3b・・・・・・ヘッドホン、4・・・・・
偏向コイル、11・・・・・・ピックアップコイル、1
2・・・・直流制御信号発生部、13・・・・・・両耳
伝達関数変換部。1 and 2 are explanatory diagrams of sound image localization in conventional headphone image reception, FIG. 5 is a block diagram showing an embodiment of the headphone device of the present invention, and FIG. 4 is a specific circuit configuration diagram of the main part of the same device. It is. 1... Television receiver, 2... Listener, 3a, 3b... Headphones, 4...
Deflection coil, 11...Pickup coil, 1
2...DC control signal generation section, 13...Binaural transfer function conversion section.
Claims (1)
準磁界とし、これを検知する検知部と、テレビジョン受
像機からの音声信号を信号源とするヘッドホン音像頭外
定位機能を有する回路手段と、上記検知部からの検知信
号により制御信号を創成し、ヘッドホン装着時の頭部の
動きに応じて上記音像頭外定位回路手段の伝達特性の制
御を行なうように構成してなるへ、ドホン装置。a detection unit that detects a leakage magnetic field from a deflection coil of a television receiver as a reference magnetic field; a circuit means having a headphone sound image out-of-head localization function that uses an audio signal from the television receiver as a signal source; A dohon device, wherein a control signal is generated based on a detection signal from a detection section, and the transmission characteristic of the sound image extra-head localization circuit means is controlled in accordance with the movement of the head when the headphones are worn.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57155409A JPS5944198A (en) | 1982-09-06 | 1982-09-06 | Headphone device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57155409A JPS5944198A (en) | 1982-09-06 | 1982-09-06 | Headphone device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5944198A true JPS5944198A (en) | 1984-03-12 |
Family
ID=15605348
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP57155409A Pending JPS5944198A (en) | 1982-09-06 | 1982-09-06 | Headphone device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5944198A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58132900U (en) * | 1982-03-01 | 1983-09-07 | 三菱重工業株式会社 | Shutter for vacuum passage |
JPH04290455A (en) * | 1991-03-19 | 1992-10-15 | Hitachi Electron Eng Co Ltd | Wafer prealignment system |
WO1995022235A1 (en) * | 1994-02-14 | 1995-08-17 | Sony Corporation | Device for reproducing video signal and audio signal |
US5452359A (en) * | 1990-01-19 | 1995-09-19 | Sony Corporation | Acoustic signal reproducing apparatus |
-
1982
- 1982-09-06 JP JP57155409A patent/JPS5944198A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58132900U (en) * | 1982-03-01 | 1983-09-07 | 三菱重工業株式会社 | Shutter for vacuum passage |
US5452359A (en) * | 1990-01-19 | 1995-09-19 | Sony Corporation | Acoustic signal reproducing apparatus |
JPH04290455A (en) * | 1991-03-19 | 1992-10-15 | Hitachi Electron Eng Co Ltd | Wafer prealignment system |
WO1995022235A1 (en) * | 1994-02-14 | 1995-08-17 | Sony Corporation | Device for reproducing video signal and audio signal |
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