JPS6022897A - Microphone - Google Patents
MicrophoneInfo
- Publication number
- JPS6022897A JPS6022897A JP12136484A JP12136484A JPS6022897A JP S6022897 A JPS6022897 A JP S6022897A JP 12136484 A JP12136484 A JP 12136484A JP 12136484 A JP12136484 A JP 12136484A JP S6022897 A JPS6022897 A JP S6022897A
- Authority
- JP
- Japan
- Prior art keywords
- microphone
- case
- center axis
- distance
- sound source
- 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
- 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
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
- H04R1/406—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers microphones
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
- Stereophonic Arrangements (AREA)
Abstract
Description
【発明の詳細な説明】
メ）？采１．の利用分野
本尾１月し１、ビデオカメラ、 ａ ｍ、 ／ ｍカメ
ラ等に設けられ、カメラか大＋１ｊｌ化せず、使い１１
を手がよく、かつステレオ効果の優れた収１イが１１丁
能となるマイクロホンに関するものである。[Detailed description of the invention] Me)? Cap 1. The field of use is 1. It is installed in video cameras, am, / m cameras, etc., and it can be used without making the camera large + 1 jl.
This invention relates to an 11-pin microphone that is easy to use and provides excellent stereo effects.
産米例の禍成とその問題点
第１図ｉｌ′ｉｆＹ火のこの種のマイクロホンを示して
いる。第１図において、１は単一指向性マイクロホン（
以下Ｍｉ ｄマイクロホンという）であり、このＭｉｄ
マイクロホン１は円筒状のケース２内にＩＩＸ納されて
いる。なおＭｉｄマイクロホン１０向きは、Ｍｉｄマイ
クロホン１の中心軸かケース２の中心軸に対し直交する
向きである。３はケース２内に収納された双指向性マイ
クロホン（以下５ｉｃｌｅ マイクロホンという）であ
り、この５ｉｄｅマイクロ７１又ン３の向きは、その中
心軸が、ケース２の中心軸に直交するとともにＭｉｄマ
イクロホン１の中心軸に対して９０°異なる向きである
。」１記Ｍｉｄマイクロホン１と５ｉｄｅマイクロホン
３は第２図に示すようにそれぞれ増幅器４，５で増幅さ
れた後、加算器６および減算器７で加算、減算されてそ
れぞれ左右の出力信号となる。第２図における回路８は
ケース２内に収納される。The disaster of rice production and its problems Figure 1 shows this type of microphone. In Figure 1, 1 is a unidirectional microphone (
(hereinafter referred to as the Mid microphone), and this Mid
A microphone 1 is housed in a cylindrical case 2. Note that the orientation of the Mid microphone 10 is perpendicular to the central axis of the Mid microphone 1 or the central axis of the case 2. 3 is a bidirectional microphone (hereinafter referred to as a 5icle microphone) housed in the case 2; The orientation is 90° different from the central axis of 1. Mid microphone 1 and 5ide microphone 3 are amplified by amplifiers 4 and 5, respectively, as shown in FIG. 2, and then added and subtracted by adder 6 and subtracter 7 to produce left and right output signals, respectively. The circuit 8 in FIG. 2 is housed within the case 2. The circuit 8 shown in FIG.
第３図は上記マイクロホンの指向性−ターンを示してお
り、ステレオ効果に優れた収計妙；「１ｆ能となるもの
である。FIG. 3 shows the directivity-turn of the microphone, which has an excellent stereo effect.
しかしながら、上記従来のマイクロホンを例えＣ：↓ビ
デオカメラに収旬ける場合、第４図に示すように、ビデ
オカメラ９に直立した状１μで収付けなければならず、
大型化けるとともに使い勝手が悪いという欠点があった
。However, when the above-mentioned conventional microphone is placed in a video camera, as shown in FIG.
The drawback was that it was large and difficult to use.
発ＩｖＪの１」的
本−光り１はト記従米の欠点を除去するものであり、カ
メラの大型化を防止し、使い１涛手がよく、かつステレ
オ効果の優れた収音が可能なマイクロホンを１ノ」↓供
することを１］的とする。Hikari 1 is a microphone that eliminates the drawbacks of the previous model, is easy to use, is easy to use, and can pick up sound with excellent stereo effect. 1] ↓The goal is to provide.
発１月の＋１′４１戊
未発ＩＪ１は、筒状のケース内に、中−指向性マイクロ
ポンをその中心軸が一１１記ケースの中心軸に一致する
ように収納するとともに、双指向性マイクロホンをその
中心軸かに記ケースの中心ψ１１１に対して直交するよ
うに収納し、上記Ｃｌ１−指向性マイクロホンのｌｉｔ
：／ノおよび双指向性マイクロホンの出力とを停（１１
器を介して加算器、減算器で加算、減算−Ｊ−る＋：ｔ
＋： ｌ戊とな−・ており、これによりカメラか人望ｆ
ｌ： ｔｒす、使い＋１ｙ；毛かよく、かつステレオ効
果の優りだ収ン１か”Ｊ’ｒＥとなるものである。The +1'41 IJ1, released in January, houses a medium-directional micropon in a cylindrical case so that its central axis coincides with the central axis of the 111th case, and a bi-directional micropon. The microphone is housed so that its central axis is perpendicular to the center ψ111 of the case, and the Cl1-lit of the directional microphone is
: / and the output of the figure-directional microphone (11
Addition and subtraction with adder and subtracter through the device -J-ru+:t
＋: It's a bit off, and this makes the camera more popular.
l: tr, use +1y; hair is smooth and the stereo effect is excellent.
実施例の説明
以下に本発明の一実施例について第５図〜第８図ととも
に説明する。DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 5 to 8.
第６図において、１′はＭｉｄマイクロボンであり、こ
のＭｉｄマイクロホン１′の向きは、その中心軸かケー
ス２の中心軸と一致する向きである。３′ｄ。In FIG. 6, reference numeral 1' indicates a Mid microphone, and the direction of this Mid microphone 1' is such that its central axis coincides with the central axis of the case 2. 3'd.
５ｆｄｅマイクロホンであり、この５ｉｄｅマイクＵポ
ン３′の向きは、その中心軸がケース２の中心軸に対し
て直交する向きである。This is a 5fde microphone, and the orientation of this 5ide microphone U-pon 3' is such that its central axis is orthogonal to the central axis of the case 2.
第６図は本実施例の電気回路を示している。FIG. 6 shows the electric circuit of this embodiment.
１０〜１３は移相器である。第７図は本実施例のマイク
ロホンの指向性パターンを示している。10 to 13 are phase shifters. FIG. 7 shows the directivity pattern of the microphone of this example.
本実施例はケース２の中心軸を跨源方向に向けて用いる
ため、第８図に示すように、ビデオカメラに並行に収付
けることができ、使い肪毛が」々いものである。In this embodiment, since the central axis of the case 2 is directed toward the straddle direction, the case 2 can be housed in parallel to the video camera, as shown in FIG.
なお曲記移相器１０〜１３ば、Ｍｉｄマイクロボン１′
と音源との距離と、５ｉｄｅマイクロホンゴと１１ｆ源
との距離とが異なることによるステレオ効果の減少を防
止するために、至高１ｔの述いを補ｉＥするためのもの
である。また周波数によ−）てパスディファレンスによ
る位相まわりは異なるが、それに応して（多相器も同様
に周波数によ、・て位相まわりが装置りするものである
。なお移相器は必ずしも４細心１りとするものではない
。Note that the phase shifters 10 to 13, the mid microbond 1'
This is to supplement the statement of the highest 1t in order to prevent the stereo effect from decreasing due to differences in the distance between the 5ide microphone and the sound source and the distance between the 5ide microphone and the 11f source. Also, the phase around the path difference differs depending on the frequency, and the phase around the polyphase converter also changes depending on the frequency. 4.It's not about being meticulous.
ブＬ１す１の効果
以１．のようにイに発明によれは、ステレオ効果に優）
Ｉ／ξ収高がＩＩＪ能となるとともに、筒状ケースの中
心＋ｉｉ＋ｌ＋をｉ’ｒ’ ｄｌｌｉ方向に向けて収音
するため、ビデオ−ｈノラ雪に設ける場合にも使い勝手
が良いものである。Effects of B L1 1 1. (This is an excellent stereo effect)
Since the I/ξ collection is IIJ and the center +ii+l+ of the cylindrical case is directed toward the i'r' dlli direction, it is easy to use even when installed in the video-h field snow.
第１図は１．ｒ末のマイクロホンの冴ｒ＋Ｉ（ｃパ目す
７図、第２図は同マイクロホンの電気回路図、第３図は
同マイ、クロホンの指向性パターンを示す図、第４図は
回マイクロホンをビデオカメラｅζ収１ζ１′けた状態
を示す１１１１１面図、第５図は未発１１Ｊ１の一実施
例におけるマイクロボンの四部の斜視図、第６図は同マ
イクロホンの市；気回路図、第７図は同マイクロホンの
指向・ｌｉパターンを示す図、第８図は同マイクロホン
のビデオカメラに収（＝Ｊけた状！島を・貸す側面図で
ある。
１′・・・・・・ｌ’ −指向性マイクロホン、２・・
・・・ケース、３′・・・・・・双指向性マイクロホン
、４，５・・・・・・増幅器、６・・・・・・加算器、
７・・・・・減算器、９・・・・・・ビデオカメラ、１
０〜１３・・・・・移相器。
弁理大の氏名 弁理士 中 尾 敏 男はが１名第１図
第２図Figure 1 shows 1. Figure 7 shows the electrical circuit diagram of the microphone, Figure 3 shows the directivity pattern of the microphone, and Figure 4 shows the video of the microphone. Figure 5 is a perspective view of four parts of the microphone in an embodiment of the unreleased 11J1, Figure 6 is the circuit diagram of the same microphone, Figure 7 is the circuit diagram of the microphone. Figure 8 is a diagram showing the directivity and li pattern of the same microphone, and is a side view of the microphone captured by the video camera (= J-digit shape!). 1'...l' - Directivity Microphone, 2...
...Case, 3'...Bidirectional microphone, 4,5...Amplifier, 6...Adder,
7...Subtractor, 9...Video camera, 1
0 to 13... Phase shifter. Name of Patent Attorney University Patent Attorney Satoshi Nakao 1 male Figure 1 Figure 2
Claims (1)
の中心軸か１−記ケースの中心軸に一致するように収納
するとともに、双指向性マイクロホンをその中心軸か１
−記ケースの中心軸に対して直交するように収納し、−
１−記１１ｊ−指向性マイクロホンの出力および双指向
性マイクロホンの出力とを移相器を介して加算ｋ・）、
減算器で加算、減算することを４．１徴とするマイクロ
ホン。Place the directional microphone in the case so that its center axis aligns with the center axis of the case, and place the bidirectional microphone with its center axis aligned with the center axis of the case.
− Store the case perpendicularly to the central axis, −
1-Note 11j- Adding the output of the directional microphone and the output of the bidirectional microphone via a phase shifter k),
A microphone whose 4.1 characteristics include addition and subtraction using a subtractor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12136484A JPS6022897A (en) | 1984-06-13 | 1984-06-13 | Microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12136484A JPS6022897A (en) | 1984-06-13 | 1984-06-13 | Microphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6022897A true JPS6022897A (en) | 1985-02-05 |
Family
ID=14809416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12136484A Pending JPS6022897A (en) | 1984-06-13 | 1984-06-13 | Microphone |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6022897A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0427298A (en) * | 1990-05-22 | 1992-01-30 | Sony Corp | Built-in stereo microphone |
| JP2006304048A (en) * | 2005-04-22 | 2006-11-02 | Sony Corp | Microphone |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5551018B2 (en) * | 1972-07-14 | 1980-12-22 |
-
1984
- 1984-06-13 JP JP12136484A patent/JPS6022897A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5551018B2 (en) * | 1972-07-14 | 1980-12-22 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0427298A (en) * | 1990-05-22 | 1992-01-30 | Sony Corp | Built-in stereo microphone |
| JP2006304048A (en) * | 2005-04-22 | 2006-11-02 | Sony Corp | Microphone |
| US7903829B2 (en) | 2005-04-22 | 2011-03-08 | Sony Corporation | Microphone |
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