JPH03168000A - Dummy head microphone - Google Patents
Dummy head microphoneInfo
- Publication number
- JPH03168000A JPH03168000A JP30798089A JP30798089A JPH03168000A JP H03168000 A JPH03168000 A JP H03168000A JP 30798089 A JP30798089 A JP 30798089A JP 30798089 A JP30798089 A JP 30798089A JP H03168000 A JPH03168000 A JP H03168000A
- Authority
- JP
- Japan
- Prior art keywords
- microphone
- dummy head
- vibration
- sound
- main body
- 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
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 210000003128 head Anatomy 0.000 abstract description 31
- 239000000463 material Substances 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 210000000613 ear canal Anatomy 0.000 abstract 1
- 230000003044 adaptive effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 210000001015 abdomen Anatomy 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 3
- 210000003027 ear inner Anatomy 0.000 description 3
- 210000005069 ears Anatomy 0.000 description 3
- 241000282412 Homo Species 0.000 description 2
- 206010000060 Abdominal distension Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 208000024330 bloating Diseases 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Stereophonic Arrangements (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、車両のような外部からの振動および騒音入力
の環境下でパイノーラル集音を行うことを可能とした、
ダミーヘッドマイクロホンに関する。[Detailed Description of the Invention] Industrial Application Field The present invention makes it possible to perform pinaural sound collection in an environment where vibration and noise are input from the outside, such as in a vehicle.
Regarding dummy head microphone.
従来の技術
従来のダミーヘッドマイクロホンとしては、例えば第６
図に示すようなものがある。2. Description of the Related Art Conventional dummy head microphones include, for example, the 6th dummy head microphone.
There is something like the one shown in the figure.
（ブリューエル・アンド・ケヤ社 ４１２８型ダミーヘ
Ｉドカタログ参照）
すなわち、図はダミーヘッドマイクロホン１の右耳断面
図を示し、ダミーヘッドマイクロホンはダミーヘソド本
体２の耳相当位置に配設されている。図において、３は
合或ゴム等で形或された耳介、４は音響インピーダンス
をシミュレートしたイヤーシミュレータ、５はブリアン
プであり先端にマイクロホンカートリッジ６が取付けら
れている。(Refer to Brüel & Keya Model 4128 Dummy Head ID Catalog) That is, the figure shows a cross-sectional view of the right ear of the dummy head microphone 1, and the dummy head microphone is arranged at a position corresponding to the ear of the dummy head main body 2. In the figure, 3 is an auricle made of rubber or the like, 4 is an ear simulator that simulates acoustic impedance, and 5 is a pre-amplifier, to which a microphone cartridge 6 is attached.
発明が解決しようとする課題
しかしながら、このような従来のダミーヘッドマイクロ
ホンｌにあっては、人間が耳で・聴いている音そのもの
を収録し再現することを目的とじて作られており、一般
に室内に静止させて使用されるので、外部からの低周波
振動の影響を受けやすい構造となっている。このため、
例えば走行時の自動車の車室内のように外部から低周波
振動が侵入しやすい環境において使用すると、ダミーヘ
ッドマイクロホンｌは本来、人間の実耳で聴いた音を収
録し再現することを目的としているにもかかわらず、ダ
ミーヘッドマイクロホン１が低周波振動を拾ってしまい
、収録音にノイズとして乗ってしまうという問題点があ
った。Problems to be Solved by the Invention However, such conventional dummy head microphones are made for the purpose of recording and reproducing the very sounds that humans hear with their ears, and are generally used indoors. Because it is used stationary, its structure is susceptible to external low-frequency vibrations. For this reason,
For example, when used in an environment where low-frequency vibrations easily invade from the outside, such as inside the cabin of a car while driving, the dummy head microphone l is originally intended to record and reproduce the sound heard with the human ear. However, there is a problem in that the dummy head microphone 1 picks up low frequency vibrations, which are added to the recorded sound as noise.
本発明は、このような従来の問題点に着目してなされた
ものであり、その目的とするところは、自動車のような
振動の影響を受け易い環境下で使用しても低周波振動を
カットした収録が可能なダミーヘッドマイクロホンを提
供しようとするものである。The present invention was made by focusing on these conventional problems, and its purpose is to cut low-frequency vibrations even when used in environments that are easily affected by vibrations, such as automobiles. The purpose of this project is to provide a dummy head microphone that can perform high-speed recording.
課題を解決するための手段
このため本発明は、実耳聴を再現するための音の収録等
に用いられるダミーヘッドマイクロホンにおいて、騒音
検出部とダミーヘノド本体との間に振動を吸収するフロ
ーテイング機構を設けた。Means for Solving the Problems Therefore, the present invention provides a floating mechanism for absorbing vibrations between a noise detection section and a dummy henode main body in a dummy head microphone used for recording sound to reproduce real hearing. has been established.
マタ、タミーヘッドマイクロホンにダミーヘッドに伝わ
る振動を検知する手段と、ダミーへ．２ドマイクロホン
により集音した音のうち、前記振動検知手段で検知され
た振動に起因する部分の音を所定量減少させる手段とを
設けた。Mata, a means to detect the vibration transmitted to the dummy head to the tummy head microphone, and to the dummy. Means is provided for reducing by a predetermined amount a portion of the sound caused by the vibration detected by the vibration detection means among the sounds collected by the two-channel microphone.
作用
人間の内耳、頚椎、背椎を模擬してダミーへ・ノドの耳
部、首部、胴体部に設けたフローテイング機構によって
、マイクロホンへ伝達される低周波振動を吸収し、振動
に起因する音をカットして収録する。Effect: The dummy simulates the human inner ear, cervical vertebrae, and back vertebrae.The floating mechanism installed in the ear, neck, and torso of the throat absorbs the low-frequency vibrations transmitted to the microphone, and eliminates the sound caused by the vibrations. Cut and record.
また、ダミーヘッドマイクロホンで収録した音と、加速
度ビックアップで検知した低周波振動とを適応型フィル
タに入力し、収録した音より、検知した低周波振動分を
所定量除去して収録する。In addition, the sound recorded by the dummy head microphone and the low-frequency vibration detected by the acceleration start-up are input to an adaptive filter, and a predetermined amount of the detected low-frequency vibration is removed from the recorded sound.
実施例
以下、本発明を図面に基づいて説明する。第ｌ図は本発
明の第１実施例を示す図である。EXAMPLES Hereinafter, the present invention will be explained based on the drawings. FIG. 1 is a diagram showing a first embodiment of the present invention.
まず構成を説明する。騒音検出部であるマイクロホン本
体８がダミーヘッド本体２に支持されている。７はマイ
クロホン本体８とダミーヘッド本体２との間に設けられ
た、防振ゴム材料によるフローティング機構で、外部か
らの低周波振動を吸収して、マイクロホンカートリッジ
６、プリアンプ５等で構成されているマイクロホン本体
８への振動の伝達を防止している。First, the configuration will be explained. A microphone body 8 serving as a noise detection section is supported by the dummy head body 2. 7 is a floating mechanism made of anti-vibration rubber material provided between the microphone body 8 and the dummy head body 2, which absorbs low frequency vibrations from the outside, and is composed of a microphone cartridge 6, a preamplifier 5, etc. This prevents vibrations from being transmitted to the microphone body 8.
我々人間の聴覚メカニズムは良くできていて、内耳の機
構や頚椎、背椎などが、外部からの低周波振動を吸収し
てくれるようになっている。もし、これらのダンピング
機構がなければ我々はうるさくて自動車などには乗って
はいられないと思われる。Humans have a well-developed hearing mechanism, with the inner ear, cervical vertebrae, and dorsal vertebrae absorbing low-frequency vibrations from the outside. If these damping mechanisms didn't exist, we wouldn't be able to ride in cars that would be so noisy.
本実施例の防振ゴム材料によるフローテイング機構７は
内耳の低周波振動機構を模擬したもので、タミーヘッド
マイクロホン１を人間の耳に近づけ、実耳で聴取する場
合と同じように低周波振動をカットした収録をすること
ができる。またフローティング機構７設置場所がマイク
ロホン本体８に近いので効果的防振作用を期待すること
ができる。The floating mechanism 7 made of anti-vibration rubber material in this embodiment simulates the low-frequency vibration mechanism of the inner ear, and when the tummy head microphone 1 is brought close to the human ear, it generates low-frequency vibrations in the same way as when listening with the real ear. You can record a cut version. Furthermore, since the floating mechanism 7 is installed close to the microphone body 8, an effective vibration-proofing effect can be expected.
第２図には、本発明の第２実施例を示す。この実施例は
ダミーヘッド本体２の頭部９と胴体部１０との間の首部
１１に防振ゴム材料のフローティング機構１２を設けた
もので、頭部９と胴体部１０とは７ローティング機構１
２を介してボルト１３とナット１４とにより結合されて
いる。FIG. 2 shows a second embodiment of the invention. In this embodiment, a floating mechanism 12 made of anti-vibration rubber material is provided in the neck 11 between the head 9 and the body 10 of the dummy head body 2, and the head 9 and the body 10 are provided with a floating mechanism 12. 1
2 and are connected by a bolt 13 and a nut 14.
なお、図中１５はゴムワノシャ、ｌ６はワッシャで、ゴ
ムワッシャ１５を使用することによってボルト１３及び
ナット１４を通して振動が伝達されない様にしている。In the figure, 15 is a rubber washer, and 16 is a washer. By using the rubber washer 15, vibrations are prevented from being transmitted through the bolt 13 and nut 14.
本実施例は人間の頚椎における外部からの低周波振動吸
収機構を模擬したもので、ダミーヘッドマイクロホンｌ
への低周波振動の伝達を防止することができ、実耳で聴
取する場合と同じように、低周波振動をカットした収録
をすることができ、車両に適用したときは、特にシート
クッション及びシートバック両方からの振動に対して効
果がある。This example simulates the external low-frequency vibration absorption mechanism in the human cervical vertebrae, and uses a dummy head microphone.
It is possible to prevent transmission of low-frequency vibrations to the vehicle, and it is possible to record with the low-frequency vibrations cut out in the same way as when listening with the real ear. Effective against vibrations from both sides.
第３図には本発明の第３実施例を示す。この実施例は、
胴体部１０を上部１７と下部１８とに分け、これらをゴ
ム製柱材ｌ９と複数のエアダンバ−２０とで構成したブ
ローティング機構２１で結合したものである。FIG. 3 shows a third embodiment of the invention. This example is
The body part 10 is divided into an upper part 17 and a lower part 18, which are connected by a bloating mechanism 21 composed of a rubber column 19 and a plurality of air dampers 20.
本実施例は人間の背椎を模擬したもので、本実施例にお
いても低周波振動の伝達を防止して、実耳で聴取する場
合と同じように低周波振動をカットした収録をすること
ができ、車両に適用した場合にはシートクッションから
の振動に対して、あらゆる方向に関し有効である。This example simulates the human back vertebrae, and in this example as well, it is possible to prevent the transmission of low-frequency vibrations and record with the low-frequency vibrations cut out in the same way as when listening with real ears. When applied to a vehicle, it is effective against vibrations from seat cushions in all directions.
以上説明した第１〜３実施例は、人間の聴覚メカニズム
を模擬してマイクロホン本体８への振動の伝達を防止す
るフローティング機構７．１２．２１を設けたもので、
必要に応じて、これら実施例の１以上を選択使用すれば
、実耳聴取に近い収録音を効果的に得ることができる。The first to third embodiments described above are provided with floating mechanisms 7, 12, and 21 that simulate the human hearing mechanism and prevent transmission of vibrations to the microphone body 8.
By selectively using one or more of these embodiments as necessary, it is possible to effectively obtain recorded sounds that are close to what can be heard with the real ear.
第４図及び第５図には、本発明の第４実施例を示す。こ
の実施例は前記した各実施例が機構的にフローティング
させたのに対して、適応型フィルタを用いて電気的に低
周波振動の影響を排除しようとするものである。4 and 5 show a fourth embodiment of the present invention. This embodiment uses an adaptive filter to electrically eliminate the influence of low-frequency vibrations, whereas the above-mentioned embodiments mechanically float.
第４図には、本実施例のブロック図を、第５図にはダミ
ーヘッドマイクロホン１部を示す。FIG. 4 shows a block diagram of this embodiment, and FIG. 5 shows a portion of the dummy head microphone.
低周波振動を含んだ騒音信号は、ダミーへノドマイクロ
ホン１のブリアンプ５マイクロホンカートリノジ６等で
構成されるマイクロホン本体８で集音され、マイクアン
ブ２２で増幅され、適応型フィルタ２３にブライマリ信
号■として入力される。The noise signal containing low-frequency vibrations is collected by the microphone main body 8 consisting of a preamplifier 5 of a dummy throat microphone 1, a microphone cartridge nozzle 6, etc., amplified by a microphone amplifier 22, and sent to an adaptive filter 23 as a primary signal. is entered as .
一方、ダミーヘッド１に入力される低周波振動は、第５
図に図示したようにマイクロホン本体８あるいはイヤシ
ミュレータ４等に取付けられた加速度ピックアノブ２４
により検出され、チャージアンプ２５にて増幅されて、
適応型フィルタ２３にリファレンス信号■として入力さ
れる。On the other hand, the low frequency vibration input to the dummy head 1
As shown in the figure, an acceleration pick knob 24 attached to the microphone body 8 or the ear simulator 4, etc.
is detected by the charge amplifier 25, and is amplified by the charge amplifier 25.
The signal is input to the adaptive filter 23 as a reference signal ■.
これらのブライマリ信号■とリファレンス信号■から適
応型フィルタ２３によって低周波振動を除去した騒音信
号■を検出することができ、低周波振動に起因する音を
カットした車室内音等を得ることができる。From these primary signals ■ and reference signals ■, a noise signal ■ from which low frequency vibrations have been removed can be detected by the adaptive filter 23, and it is possible to obtain vehicle interior sound, etc., in which sounds caused by low frequency vibrations have been removed. .
２６はＤＡＴ等の録音機器であり、これにより低周波振
動の影響をカットした収録が可能となる。26 is a recording device such as a DAT, which enables recording with the influence of low frequency vibrations removed.
なお図は簡単のため１チャンネルだけ示しているが、多
チャンネルの収録も当然可能である。Note that although the figure shows only one channel for simplicity, it is of course possible to record multiple channels.
本実施例によれば、前記実施例と同様の効果が得られ、
更に電気的処理によるため、低周波振動の周波数の影響
を受けないという効果がある。According to this embodiment, the same effects as in the previous embodiment can be obtained,
Furthermore, since it is based on electrical processing, it has the effect of not being affected by the frequency of low-frequency vibrations.
尚、前述の実施例ではダミーヘッド本体の、耳、首、胴
にそれぞれフローティング機構を設けたが、これ以外の
部分にフローティング機構を設けることができるのはも
ちろんである。In the above-described embodiment, floating mechanisms were provided at the ears, neck, and body of the dummy head body, but it is of course possible to provide floating mechanisms at other parts.
発明の効果
以上説明してきたように構成されているので、本発明に
よれば車両のような外部からの振動の影響を受け易い環
境下で使用しても、実耳で聴取する場合と同じように低
周波振動をカットした収録音を収録することができる。Effects of the Invention Since the invention is configured as explained above, even when used in an environment susceptible to external vibrations such as a vehicle, the present invention provides the same sound quality as when listening with the real ear. It is possible to record sound with low frequency vibrations cut out.
第１図は本発明の第１実施例を示す断面図、第２図は本
発明の第２実施例を示す断面図、第３図は本発明の第３
実施例を示す一部断面図、第４図は本発明の第４実施例
を示すブロック図、第５図は本発明の第４実施例を示す
断面図、第６図は従来例を示す断面図である。
ｌ・・・ダミーヘッドマイクロホン、２・・・タミーヘ
ッド、３・・・耳介、４・・・イヤーシミュレータ、５
・・・ブリアンプ、６・・・マイクロホンカートリッジ
、７・・・フローティング機構、８・・・マイクロホン
本体、９・・・頭部、１０・・・胴体部、１１・・・首
部、ｌ２・・・フローティング機構、１５・・・ゴムヮ
ッシャ、１７・・・胴体上部、．１８・・・胴体下部、
１９・・・ゴム製柱材、２０・・・エアダンパー、２１
・・・フローティンク機構、２２・・・マイクアンプ、
２３・・・適応型フィルタ、２４・・・加速度ピックア
ップ、２５・・・チャージアンプ。
゜ タミーへγドマイ７ロ本ン
゜ デミーヘ・Ｉ｝″ふイ本
：ｊｌ介
： 肋？辰ゴムＨ竹によろフローディン７枦４１： マ
イフロ不ソネｆ本
第
１
図
＋ｆ ： ｉｉ４％
１２ ： Ｐｆｌｔ展ゴム科オ引；Ｊるフロープイ
ンフ機溝１５： ゴムフッシャ
第
２
図
１０
胴体４戸
第
３
図FIG. 1 is a sectional view showing a first embodiment of the invention, FIG. 2 is a sectional view showing a second embodiment of the invention, and FIG. 3 is a sectional view showing a third embodiment of the invention.
4 is a block diagram showing a fourth embodiment of the present invention; FIG. 5 is a sectional view showing a fourth embodiment of the present invention; FIG. 6 is a sectional view showing a conventional example. It is a diagram. l...Dummy head microphone, 2...Tummy head, 3...Auricle, 4...Ear simulator, 5
... Brian amplifier, 6... Microphone cartridge, 7... Floating mechanism, 8... Microphone body, 9... Head, 10... Body part, 11... Neck part, l2... Floating mechanism, 15... Rubber washer, 17... Upper body. 18...lower fuselage,
19...Rubber pillar material, 20...Air damper, 21
...Floating mechanism, 22...Mic amplifier,
23...Adaptive filter, 24...Acceleration pickup, 25...Charge amplifier.゜ To Tammy γdomai 7rohon ゜ Demyhe・I㽝″Fuihon: Jl intervention: rib? Pflt exhibition rubber department discount; Juru flow inf machine groove 15: Rubber hooker 2nd figure 10 4 fuselage doors 3rd figure
Claims (2)
ダミーヘッドマイクロホンにおいて、騒音検出部とダミ
ーヘッド本体との間に振動を吸収するフローティング機
構を設けたことを特徴とするダミーヘッドマイクロホン
。(1) A dummy head microphone used for recording sound to reproduce real hearing, characterized by a floating mechanism that absorbs vibrations between the noise detection section and the dummy head body. Microphone.
ダミーヘッドマイクロホンにおいて、ダミーヘッドマイ
クロホンに伝わる振動を検知する振動検知手段と、ダミ
ーヘッドマイクロホンにより集音した音のうち、前記振
動検知手段で検知された振動に起因する部分の音を所定
量減少させる手段とを設けたことを特徴とするダミーヘ
ッドマイクロホン。(2) A dummy head microphone used for recording sound to reproduce real hearing, etc., includes a vibration detection means for detecting vibrations transmitted to the dummy head microphone, and a vibration detecting means for detecting vibrations transmitted to the dummy head microphone, and detects the vibrations of the sound collected by the dummy head microphone. 1. A dummy head microphone comprising means for reducing a predetermined amount of sound caused by vibration detected by the detection means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30798089A JPH03168000A (en) | 1989-11-28 | 1989-11-28 | Dummy head microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30798089A JPH03168000A (en) | 1989-11-28 | 1989-11-28 | Dummy head microphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03168000A true JPH03168000A (en) | 1991-07-19 |
Family
ID=17975457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30798089A Pending JPH03168000A (en) | 1989-11-28 | 1989-11-28 | Dummy head microphone |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03168000A (en) |
Cited By (11)
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|---|---|---|---|---|
| JP2014027623A (en) * | 2012-07-30 | 2014-02-06 | Kyocera Corp | Measuring system |
| JP2014027622A (en) * | 2012-07-30 | 2014-02-06 | Kyocera Corp | Measuring instrument |
| WO2014020873A1 (en) * | 2012-07-31 | 2014-02-06 | 京セラ株式会社 | Ear model, mock model of head, and measuring device and measuring method employing same |
| WO2014080557A1 (en) * | 2012-11-22 | 2014-05-30 | 京セラ株式会社 | Ear model, artificial head part, and measurement device and method using said model and head |
| JP2014140223A (en) * | 2014-03-12 | 2014-07-31 | Kyocera Corp | Measuring system |
| JP2014150545A (en) * | 2014-03-12 | 2014-08-21 | Kyocera Corp | Measuring apparatus |
| WO2015098009A1 (en) * | 2013-12-26 | 2015-07-02 | 京セラ株式会社 | Measurement system and measurement method |
| US9103747B2 (en) | 2010-10-20 | 2015-08-11 | Lear Corporation | Vehicular dynamic ride simulation system using a human biofidelic manikin and a seat pressure distribution sensor array |
| EP2914020A4 (en) * | 2012-10-24 | 2016-07-27 | Kyocera Corp | Vibration pick-up device, vibration measurement device, measurement system, and measurement method |
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-
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| RU204492U1 (en) * | 2019-12-06 | 2021-05-27 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Владимирский Государственный Университет имени Александра Григорьевича и Николая Григорьевича Столетовых" (ВлГУ) | Measuring stand for the study of personal hearing protection |
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