JP5206354B2 - Recording device with windscreen and microphone - Google Patents

Recording device with windscreen and microphone Download PDF

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JP5206354B2
JP5206354B2 JP2008296566A JP2008296566A JP5206354B2 JP 5206354 B2 JP5206354 B2 JP 5206354B2 JP 2008296566 A JP2008296566 A JP 2008296566A JP 2008296566 A JP2008296566 A JP 2008296566A JP 5206354 B2 JP5206354 B2 JP 5206354B2
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microphone
recording
absorbing member
sound absorbing
cover portion
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JP2010124288A (en
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逸人 西牟田
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JVCKenwood Corp
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JVCKenwood Corp
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Description

本発明は、ウインドスクリーン及びマイク付き録音装置に関する。 The present invention relates to a wind screen and a recording device with a microphone .

マイクやマイクを有する録音装置等において、マイクに対して風が吹き付けることによって生ずるノイズ（風切り音）を抑止するためにマイクをウインドスクリーンで覆うことが行われている。一般的に、ウインドスクリーンは吸音性を有する部材（例えば発泡ウレタンやフェイクファー等）によってマイクを覆うものであり、マイクに対して着脱可能に設けられる（例えば特許文献１）。
特開２００５−３４７９８４号公報 2. Description of the Related Art In a microphone or a recording device having a microphone, the microphone is covered with a wind screen in order to suppress noise (wind noise) generated when wind blows on the microphone. In general, a wind screen covers a microphone with a sound-absorbing member (for example, foamed urethane, fake fur, or the like), and is detachably attached to the microphone (for example, Patent Document 1).
JP 2005-347984 A

しかしながら、特許文献１のウインドスクリーンはマイクから独立した部材として設けられている。つまり、屋内での録音時等、ウインドスクリーンを使用しない場合においてウインドスクリーンはマイクから取り外された状態となる。このため、マイクから取り外したウインドスクリーンを紛失することがある。分離独立したウインドスクリーンを紛失する可能性は、ウインドスクリーンの紛失によってマイクのノイズを抑止する手段を喪失する可能性の発生に加え、ウインドスクリーンを紛失しないための注意を払う負担をマイクの使用者に生じさせる。
さらに、特許文献１のウインドスクリーンは、ウインドスクリーンの着脱に時間がかかるため、即時の録音を要求する場合において録音の機会を逸することがある。 However, the wind screen of Patent Document 1 is provided as a member independent of the microphone. That is, when the wind screen is not used, such as when recording indoors, the wind screen is removed from the microphone. For this reason, the windscreen removed from the microphone may be lost. The possibility of losing a separate and independent windscreen may cause the loss of the means to suppress microphone noise due to the loss of the windscreen, and the user of the microphone must pay attention not to lose the windscreen. To cause.
Furthermore, since the windscreen of Patent Document 1 takes time to attach and detach the windscreen, the recording opportunity may be missed when immediate recording is required.

加えて、特許文献１のウインドスクリーンは、吸音性能が必ずしも一定とならない。何故ならば、ウインドスクリーンに設けられた凹部に対してマイクを嵌め込むものであるため、凹部に対するマイクの嵌め込み深度によってマイクに対するウインドスクリーンの位置が変化する。このため、マイクをウインドスクリーンの凹部の奥まで嵌め込むことを怠った場合、ウインドスクリーンは所定の性能を発揮できない。   In addition, the wind screen of Patent Document 1 does not necessarily have a constant sound absorption performance. This is because the microphone is inserted into the recess provided in the wind screen, and the position of the wind screen relative to the microphone changes depending on the insertion depth of the microphone in the recess. For this reason, if it is neglected to insert the microphone all the way into the recess of the windscreen, the windscreen cannot exhibit a predetermined performance.

本発明は、より簡便に取り扱えて良好な吸音性能を得られるウインドスクリーン及びマイク付き録音装置を提供することを目的とする。 It is an object of the present invention to provide a windscreen and a recording device with a microphone that can be handled more easily and obtain good sound absorption performance.

請求項１記載の発明によるウインドスクリーンは、マイクを有する筐体に対して回動可能に設けられてマイクの外側を覆うカバー部を備え、前記カバー部は、当該カバー部を貫通する第１の開口部および前記第１の開口部を覆う吸音部材を備え、前記カバー部は、その回動角度に応じて、録音時は前記吸音部材が設けられた部分によって前記マイクを覆うとともに、設置面に前記筐体が載置されたときに所定の回動角度で当該筐体を支持し、非録音時は前記吸音部材が設けられていない部分によって前記マイクの外部に対する露出を防ぐことを特徴とする。 A windscreen according to a first aspect of the present invention includes a cover portion that is provided so as to be rotatable with respect to a housing having a microphone and covers the outside of the microphone, and the cover portion includes a first portion that penetrates the cover portion. opening and provided with a sound-absorbing member covering the first opening, the cover part, in accordance with the rotation angle, with the recording time covers therefore the microphone part fraction the sound absorbing member is provided, installed When the casing is placed on a surface, the casing is supported at a predetermined rotation angle, and when not recording, the portion where the sound absorbing member is not provided prevents exposure to the outside of the microphone. And

請求項２記載の発明は、請求項１に記載のウインドスクリーンにおいて、前記マイクは、前記筐体の端部に設けられており、前記カバー部は、断面略Ｌ字状に折曲した形状を有し、当該カバー部の折曲方向に回動可能に前記筐体に取り付けられ、断面略Ｌ字状の一方の辺に前記吸音部材が設けられていることを特徴とする。
請求項３記載の発明によるマイク録音装置は、請求項１又は２に記載のウインドスクリーンを備えることを特徴とする。 According to a second aspect of the present invention, in the windscreen according to the first aspect , the microphone is provided at an end portion of the housing, and the cover portion has a shape bent in a substantially L-shaped cross section. And is attached to the casing so as to be rotatable in the bending direction of the cover portion, and the sound absorbing member is provided on one side having a substantially L-shaped cross section.
According to a third aspect of the present invention, there is provided a microphone recording apparatus comprising the wind screen according to the first or second aspect.

本発明によれば、より簡便に取り扱えて良好な吸音性能を得られる。 According to the present invention, Ru obtain a good sound absorption performance handled more simply.

（第１の実施形態）
以下、図を参照して本発明の実施の形態を詳細に説明する。まず、図１及至図６を用いて、本発明の第１の実施形態について説明する。
図１に、本発明の第１の実施形態であるウインドスクリーン２０を有するマイク付き録音装置１の斜視図を示す。以降の説明において、図１に示すマイク付き録音装置１の最長辺に沿った方向をＸ軸方向、最短辺に沿った方向をＺ軸方向、Ｘ軸方向及びＺ軸方向に沿った方向をＹ軸方向とする。 (First embodiment)
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. First, a first embodiment of the present invention will be described with reference to FIGS.
FIG. 1 shows a perspective view of a recording apparatus 1 with a microphone having a wind screen 20 according to the first embodiment of the present invention. In the following description, the direction along the longest side of the recording apparatus 1 with a microphone shown in FIG. 1 is the X-axis direction, the direction along the shortest side is the Z-axis direction, the direction along the X-axis direction and the Z-axis direction is Y. Axial direction.

マイク付き録音装置１は、Ｘ軸方向の一端側にマイクを備えた筐体２と、当該マイクを外側から覆うウインドスクリーン２０と、を備える。 The microphone-equipped recording device 1 includes a housing 2 having a microphone on one end side in the X-axis direction, and a wind screen 20 that covers the microphone from the outside.

まず、筐体２及びマイクについて説明する。
図２に、ウインドスクリーン２０を除いたマイク付き録音装置１の構成を示す平面図を示す。図２（ａ）はＸ−Ｙ平面図、図２（ｂ）はウインドスクリーン２０が設けられた側のＹ−Ｚ平面図である。
図２に示すように、筐体２は角に丸みを帯びた直方体状であり、Ｘ軸方向の一端側にセンターマイク１１及び二つの側面マイク１２の計３つのマイクを備えている。 First, the housing 2 and the microphone will be described.
FIG. 2 is a plan view showing the configuration of the recording apparatus 1 with a microphone excluding the wind screen 20. 2A is an XY plan view, and FIG. 2B is a YZ plan view on the side where the wind screen 20 is provided.
As shown in FIG. 2, the housing 2 has a rectangular parallelepiped shape with rounded corners, and includes a total of three microphones, a center microphone 11 and two side microphones 12, on one end side in the X-axis direction.

図示しないが、マイク付き録音装置１は３つのマイクを介して得られた音声を記憶（録音）する記憶装置、録音された音声を再生出力する出力装置及び出力インタフェース（例えばイヤフォンジャック等）ならびにマイク付き録音装置１による録音、再生等の各種処理を行う制御装置を筐体２内に備え、マイク付き録音装置１の各種動作を指示する入力装置を筐体２外周面に備える。つまり、マイク付き録音装置１は単独で録音を行うことができる機器である。   Although not shown, the recording device with a microphone 1 is a storage device that stores (records) sound obtained through three microphones, an output device that reproduces and outputs recorded sound, an output interface (for example, an earphone jack), and a microphone. A control device for performing various processes such as recording and playback by the attached recording device 1 is provided in the housing 2, and an input device for instructing various operations of the recording device 1 with a microphone is provided on the outer peripheral surface of the housing 2. That is, the microphone-equipped recording device 1 is a device that can perform recording alone.

次に、ウインドスクリーン２０について説明する。
図３に、録音時のマイクとウインドスクリーン２０の位置関係を示す。図３に示すウインドスクリーン２０の回動角度は、図１に示すウインドスクリーン２０の回動角度である。
ウインドスクリーン２０は、カバー部２１と、吸音部材２２と、を備える。
図３に示すように、カバー部２１はＸ−Ｚ断面が略Ｌ字形状に折曲した部材であり、当該略Ｌ字形状によってマイクの外側を覆うよう設けられる。以降、カバー部２１の筐体２に面する側を内周面側、その反対の面を外周面側とする。 Next, the wind screen 20 will be described.
FIG. 3 shows the positional relationship between the microphone and the wind screen 20 during recording. The rotation angle of the wind screen 20 shown in FIG. 3 is the rotation angle of the wind screen 20 shown in FIG .
The wind screen 20 includes a cover portion 21 and a sound absorbing member 22.
As shown in FIG. 3, the cover portion 21 is a member whose XZ cross section is bent into a substantially L shape, and is provided so as to cover the outside of the microphone by the substantially L shape. Hereinafter, the side of the cover portion 21 facing the housing 2 is referred to as an inner peripheral surface side, and the opposite surface is referred to as an outer peripheral surface side.

カバー部２１は、回動軸２３によって筐体２に対してカバー部２１の折曲方向に回動可能に軸支される。回動軸２３は、筐体２のＸ−Ｚ平面に沿った外周面（以下、Ｘ−Ｚ面）に設けられた凹部と、筐体２のＸ−Ｚ面と対向する位置に設けられたカバー部２１の側板２４の内周面側において凹部と対向する位置に設けられた凸部とが係合することでカバー部２１を筐体２に対して回動可能に軸支する。回動軸２３は、筐体２に対してカバー部２１を回動可能に軸支するものであればその具体的構造を問わず、例えば前述の凹部と凸部が逆の関係でもよいし、別部材による回動軸を設けてもよい。   The cover portion 21 is pivotally supported by the rotation shaft 23 so as to be rotatable with respect to the housing 2 in the bending direction of the cover portion 21. The rotation shaft 23 is provided at a position facing the concave portion provided on the outer peripheral surface (hereinafter referred to as XZ plane) along the XZ plane of the casing 2 and the XZ plane of the casing 2. The cover portion 21 is pivotally supported with respect to the housing 2 by engaging with a convex portion provided at a position facing the concave portion on the inner peripheral surface side of the side plate 24 of the cover portion 21. As long as the rotation shaft 23 pivotally supports the cover portion 21 with respect to the housing 2, regardless of its specific structure, for example, the above-described concave portion and convex portion may have an inverse relationship, You may provide the rotating shaft by another member.

吸音部材２２は、カバー部２１の略Ｌ字形状の長辺の内周面側に設けられる。カバー部２１は、内周面側と外周面側とを貫通する複数の開口部である穴２５を有し、吸音部材２２は内周面側から穴２５を覆うよう設けられる。吸音部材２２は、吸音性を有する素材（例えば発泡ウレタン等）からなり、穴２５を介して通過する風の流れを抑止する。なお、図１において、カバー部２１のＹ−Ｚ面上に記載された丸のうち一つに符号２５が付されているが、カバー部２１のＹ−Ｚ面上に記載された丸は全て穴２５である。   The sound absorbing member 22 is provided on the inner peripheral surface side of the substantially L-shaped long side of the cover portion 21. The cover portion 21 has holes 25 that are a plurality of openings that penetrate the inner peripheral surface side and the outer peripheral surface side, and the sound absorbing member 22 is provided so as to cover the holes 25 from the inner peripheral surface side. The sound absorbing member 22 is made of a sound absorbing material (for example, urethane foam) and suppresses the flow of wind passing through the hole 25. In addition, in FIG. 1, although the code | symbol 25 is attached | subjected to one of the circles described on the YZ surface of the cover part 21, all the circles described on the YZ surface of the cover part 21 are all. Hole 25.

録音時、Ｘ軸方向について側面マイク１２およびセンターマイク１１と対向する位置に吸音部材２２が位置するようカバー部２１の回動角度を調節することで、マイクは吸音部材２２が設けられた部分によって覆われる。このとき、カバー部２１の外側からマイクに対して吹きつける風は、吸音部材２２によって大幅に緩和されるので、風が直接マイクに吹き付けることで生じる風切り音等のノイズが大幅に低減される。   At the time of recording, by adjusting the rotation angle of the cover portion 21 so that the sound absorbing member 22 is positioned at a position facing the side microphone 12 and the center microphone 11 in the X-axis direction, the microphone is adjusted by the portion where the sound absorbing member 22 is provided. Covered. At this time, the wind blown to the microphone from the outside of the cover portion 21 is greatly relieved by the sound absorbing member 22, so that noise such as wind noise generated when the wind blows directly on the microphone is greatly reduced.

マイクは、穴２５及び吸音部材２２を介してマイクに届いた空気の振動を音声として集音する。このとき、吸音部材２２はマイクに届く空気の振動の一部を緩和することがあるが、吸音部材２２の厚み及びマイクの感度を録音に支障をきたさない程度にすることでマイク付き録音装置１による録音を良好に行うことができる。   The microphone collects the vibration of the air reaching the microphone through the hole 25 and the sound absorbing member 22 as sound. At this time, the sound absorbing member 22 may relieve a part of vibration of the air reaching the microphone, but the recording device 1 with the microphone can be obtained by setting the thickness of the sound absorbing member 22 and the sensitivity of the microphone so as not to hinder the recording. Recording can be performed satisfactorily.

カバー部２１は、吸音部材２２がマイクを覆う回動角度のとき、筐体２のマイクが設けられていない側の一端部と共働でマイク付き録音装置１の設置面Ｇから離隔した位置にマイクを保持するよう筐体２を支持する。このとき、カバー部２１は非録音時等その他の回動角度よりも吸音部材２２がマイクを覆うときのカバー部２１の回動角度がよりマイクを設置面Ｇから離隔させる。つまり、ウインドスクリーン２０のカバー部２１はマイク付き録音装置１のスタンドとしても機能する。
図４に、カバー部２１及び筐体２に支持された状態のマイク付き録音装置１を示す。
図４に示すように、カバー部２１は、その略Ｌ字形状の長辺端側が設置面Ｇと当接することで、マイクが設けられた側の筐体２の一端側を設置面Ｇから離隔し、設置面Ｇに当接した筐体２の他端側に対してマイクが仰角を有するよう支持する。 When the sound absorbing member 22 is at a rotation angle at which the sound absorbing member 22 covers the microphone, the cover portion 21 cooperates with one end of the housing 2 on the side where the microphone is not provided, and is separated from the installation surface G of the recording device 1 with the microphone. The housing 2 is supported so as to hold the microphone. At this time, the cover portion 21 causes the microphone to be further away from the installation surface G by the rotation angle of the cover portion 21 when the sound absorbing member 22 covers the microphone than the other rotation angles such as when not recording. That is, the cover portion 21 of the wind screen 20 also functions as a stand of the recording device 1 with a microphone.
FIG. 4 shows the recording device 1 with a microphone supported by the cover 21 and the housing 2.
As shown in FIG. 4, the cover portion 21 has its substantially L-shaped long side end in contact with the installation surface G so that one end side of the housing 2 on the side where the microphone is provided is separated from the installation surface G. Then, the microphone is supported so as to have an elevation angle with respect to the other end side of the housing 2 in contact with the installation surface G.

非録音時にはＸ軸方向についてカバー部２１の短辺側が側面マイク１２およびセンターマイク１１と対向する位置となる回動角度にカバー部２１を回動させることで、マイクをカバー部２１の吸音部材２２が設けられていない部分によって覆うことができる。
図５に、非録音時のマイク付き録音装置１を示す。図６に、非録音時のマイクとウインドスクリーン２０の位置関係を示す。
図５、図６に示すように、非録音時には、マイクをカバー部２１の略Ｌ字形状の短辺側によって覆うようカバー部２１を回動させることができる。 At the time of non-recording, the cover portion 21 is rotated at a rotation angle at which the short side of the cover portion 21 faces the side microphone 12 and the center microphone 11 in the X-axis direction. Can be covered by a portion not provided.
FIG. 5 shows the recording apparatus 1 with a microphone at the time of non-recording. FIG. 6 shows the positional relationship between the microphone and the wind screen 20 during non-recording.
As shown in FIGS. 5 and 6, during non-recording, the cover portion 21 can be rotated so as to cover the microphone with the substantially L-shaped short side of the cover portion 21.

なお、筐体２に対するカバー部２１の回動角度を録音時、非録音時で保持するための構成を設けてもよい。例えば、カバー部２１を録音時又は非録音時の回動角度としたときに、側板２４と筐体２とが係合する凸凹部を側板２４、筐体２に設ける等の構成が挙げられる。この場合、カバー部２１が前述の録音時又は非録音時の回動角度とされたとき、側板２４に設けられた凸部（又は凹部）が筐体２のＸ−Ｚ面に設けられた凹部（又は凸部）と係合し、筐体２に対するカバー部２１の回動角度が保持される。   In addition, you may provide the structure for hold | maintaining the rotation angle of the cover part 21 with respect to the housing | casing 2 at the time of recording and the time of non-recording. For example, when the cover portion 21 is set to a rotation angle at the time of recording or non-recording, a configuration in which a convex / concave portion in which the side plate 24 and the housing 2 are engaged is provided on the side plate 24 and the housing 2 is exemplified. In this case, when the cover portion 21 is at the above-described rotation angle during recording or non-recording, the convex portion (or concave portion) provided on the side plate 24 is the concave portion provided on the XZ plane of the housing 2. (Or a convex part) is engaged, and the rotation angle of the cover part 21 with respect to the housing | casing 2 is maintained.

以上、第１の実施形態によれば、カバー部２１は、その回動角度に応じて吸音部材２２が設けられた長辺側又は吸音部材２２が設けられていない短辺側の少なくともいずれか一方によってマイクを覆う。つまり、録音時にマイクの外側が吸音部材２２に覆われるようにすることで、カバー部２１の外側からマイクに対して吹きつける風が吸音部材２２によって大幅に緩和されるので、風が直接マイクに吹き付けることで生じる風切り音等のノイズを大幅に低減することができる。一方、非録音時にマイクの外側がカバー部２１のうち穴２５を有しない短辺側で覆われるようにすることで、マイクの外部に対する露出を防ぐことができ、不慮によりマイクが設けられた側のマイク付き録音装置１の端部を他の構造物と当接又は衝突させたとしてもマイクが当該当接、衝突によって損傷することを防ぐことができる。   As described above, according to the first embodiment, the cover portion 21 has at least one of the long side where the sound absorbing member 22 is provided or the short side where the sound absorbing member 22 is not provided according to the rotation angle. Cover the microphone. In other words, by making the outside of the microphone covered with the sound absorbing member 22 during recording, the wind blowing from the outside of the cover portion 21 to the microphone is greatly relieved by the sound absorbing member 22, so that the wind is directly applied to the microphone. Noise such as wind noise generated by spraying can be greatly reduced. On the other hand, the outside of the microphone is covered with the short side of the cover portion 21 that does not have the hole 25 during non-recording, so that the outside of the microphone can be prevented from being exposed to the side where the microphone is inadvertently provided. Even if the end of the recording device 1 with a microphone contacts or collides with another structure, the microphone can be prevented from being damaged by the contact or collision.

さらに、カバー部２１は吸音部材２２がマイクを覆う回動角度のとき、設置面Ｇに載置された筐体２を支持する。即ち、ウインドスクリーン２０は、風切り音等のノイズが録音されることを抑止すると共に、マイク付録音装置１を支持するスタンドとしても機能する。   Further, the cover portion 21 supports the housing 2 placed on the installation surface G when the sound absorbing member 22 has a rotation angle that covers the microphone. That is, the wind screen 20 suppresses recording of noise such as wind noise, and also functions as a stand that supports the recording device 1 with a microphone.

さらに、カバー部２１は、吸音部材２２が設けられた部分がマイクを覆う回動角度の場合に筐体２を支持し、その支持状態では、非録音時の回動角度等その他の回転角度の場合に比べて、マイクを設置面Ｇからより離隔した位置に保持する。これによって、マイクは設置面Ｇに当接した筐体２の他端側に対してマイクが仰角を有するよう支持されるので、録音対象の音源が設置面Ｇより上方に位置する場合にマイクを音源に向けて設置することが容易となる。   Further, the cover portion 21 supports the housing 2 when the portion where the sound absorbing member 22 is provided is at a rotation angle that covers the microphone, and in the support state, the cover portion 21 has other rotation angles such as a rotation angle at the time of non-recording. Compared to the case, the microphone is held at a position further away from the installation surface G. As a result, the microphone is supported so that the microphone has an elevation angle with respect to the other end of the housing 2 in contact with the installation surface G. Therefore, when the sound source to be recorded is located above the installation surface G, the microphone is It becomes easy to install it toward the sound source.

（第２の実施形態）
次に、第１の実施形態とは異なる本発明の第２の実施形態について図７及至図８を用いて説明する。第１の実施形態と同様の構成については、同じ符号を付して説明を省略する。
図７に第２の実施形態によるウインドスクリーン３０を示す。図７（ａ）はカバー部の外周側から見た場合のＹ−Ｚ平面図、図７（ｂ）はＸ−Ｚ平面に沿った断面図である。
第２の実施形態によるウインドスクリーン３０のカバー部３１には、その略Ｌ字形状の短辺側においてカバー部３１の内周側と外周側とを貫通するよう設けられた開口部である穴３２を有する。穴３２は長辺側に設けられた穴２５と異なり、吸音部材２２によって塞がれていない。カバー部３１は、穴３２を有する点を除きカバー部２１と同様の構成を有する。 (Second Embodiment)
Next, a second embodiment of the present invention different from the first embodiment will be described with reference to FIGS. The same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.
FIG. 7 shows a wind screen 30 according to the second embodiment. 7A is a YZ plan view when viewed from the outer peripheral side of the cover portion, and FIG. 7B is a cross-sectional view along the XZ plane.
The cover portion 31 of the wind screen 30 according to the second embodiment has a hole 32 that is an opening provided so as to penetrate the inner peripheral side and the outer peripheral side of the cover portion 31 on the substantially L-shaped short side. Have Unlike the hole 25 provided on the long side, the hole 32 is not blocked by the sound absorbing member 22. The cover part 31 has the same configuration as the cover part 21 except that the hole 32 is provided.

図７（ｂ）に示すように、録音時にＸ軸方向について側面マイク１２およびセンターマイク１１と対抗する位置にカバー部３１の短辺側が位置する場合、マイクは穴３２を介して届いた音声を録音する。このとき、穴３２は吸音部材２２によって塞がれていないので、マイク付き録音装置１は吸音部材２２による音声の減衰等を伴わないクリアな音声を録音することができる。   As shown in FIG. 7B, when the short side of the cover portion 31 is located at a position facing the side microphone 12 and the center microphone 11 in the X-axis direction during recording, the microphone receives the sound that has arrived through the hole 32. Record. At this time, since the hole 32 is not blocked by the sound absorbing member 22, the recording apparatus 1 with a microphone can record a clear sound without any sound attenuation by the sound absorbing member 22.

図８に、第２の実施形態によるウインドスクリーン３０を備えたマイク付き録音装置１において吸音部材２２を用いる際のマイクとウインドスクリーンの位置関係を示す。
一方、第１の実施形態と同様に、カバー部３１の略Ｌ字形状の長辺側は穴２５及び吸音部材２２を有する。屋外での録音等、マイクに対して風が吹き付ける環境下での録音時には図８に示すようにＸ軸方向について側面マイク１２およびセンターマイク１１と対抗する位置にカバー部３１の長辺側が位置するようにすることで吸音部材２２により風切り音等のノイズを抑止することができる。 FIG. 8 shows the positional relationship between the microphone and the wind screen when the sound absorbing member 22 is used in the microphone-equipped recording device 1 including the wind screen 30 according to the second embodiment.
On the other hand, as in the first embodiment, the substantially L-shaped long side of the cover portion 31 has a hole 25 and a sound absorbing member 22. When recording in an environment where wind blows against the microphone, such as when recording outdoors, the long side of the cover portion 31 is located at a position facing the side microphone 12 and the center microphone 11 in the X-axis direction as shown in FIG. By doing so, noise such as wind noise can be suppressed by the sound absorbing member 22.

第２の実施形態によれば、カバー部３１は、第１の実施形態と同様にカバー部２１の回動角度に応じてマイクの外側を吸音部材２２で覆うことができると共に、穴３２を有する短辺側によって前記マイクを覆うことができる。即ち、マイク付き録音装置１の使用者は録音時にマイクを吸音部材２２で覆うか否かをカバー部２１の回動角度に応じて選択できる。   According to the second embodiment, the cover portion 31 can cover the outside of the microphone with the sound absorbing member 22 according to the rotation angle of the cover portion 21 as in the first embodiment, and has the hole 32. The microphone can be covered by the short side. That is, the user of the recording apparatus with a microphone 1 can select whether or not to cover the microphone with the sound absorbing member 22 during recording according to the rotation angle of the cover portion 21.

（第３の実施形態）
次に、第１の実施形態及び第２の実施形態とは異なる本発明の第３の実施形態について図９を用いて説明する。第１の実施形態、第２の実施形態と同様の構成については、同じ符号を付して説明を省略する。
図９に第３の実施形態によるウインドスクリーン４０を示す。
ウインドスクリーン４０のカバー部４１は、長辺側及び短辺側にそれぞれカバー部の内周側と外周側とを貫通する開口部である穴４２を有すると共に、穴４２の内周側を塞ぐように設けられた吸音部材４３、４４を有する。吸音部材４３と吸音部材４４は、その吸音性能を異にする。具体的には、吸音部材４３と吸音部材４４はその素材が異なるか、又は同一の素材であって厚みが異なる等の差異を有し、その差異によって吸音性能を異にする。つまり、第３の実施形態によるウインドスクリーン４０は、その回動角度によってマイクを覆う吸音部材を吸音部材４３又は吸音部材４４のいずれか一方とすることができる。録音時には、使用したい吸音部材がＸ軸方向について側面マイク１２およびセンターマイク１１と対抗する位置となるようカバー部４１の回動角度を調節すればよい。 (Third embodiment)
Next, a third embodiment of the present invention different from the first embodiment and the second embodiment will be described with reference to FIG. The same components as those in the first embodiment and the second embodiment are denoted by the same reference numerals and description thereof is omitted.
FIG. 9 shows a wind screen 40 according to the third embodiment.
The cover portion 41 of the wind screen 40 has a hole 42 that is an opening that penetrates the inner peripheral side and the outer peripheral side of the cover portion on the long side and the short side, respectively, and closes the inner peripheral side of the hole 42. Sound-absorbing members 43 and 44 are provided. The sound absorbing member 43 and the sound absorbing member 44 have different sound absorbing performance. Specifically, the sound-absorbing member 43 and the sound-absorbing member 44 are different from each other in material, or have the same material and have different thicknesses, and the sound absorption performance differs depending on the difference. That is, in the wind screen 40 according to the third embodiment, the sound absorbing member that covers the microphone according to the rotation angle thereof can be either the sound absorbing member 43 or the sound absorbing member 44. At the time of recording, the rotation angle of the cover portion 41 may be adjusted so that the sound absorbing member that is desired to be used is positioned opposite to the side microphone 12 and the center microphone 11 in the X-axis direction.

第３の実施形態によれば、カバー部４１は、その回動角度に応じて異なる種類の吸音部材４３，４４が設けられた部分によってマイクを覆うことができる。これによって、マイク付き録音装置１の使用者は録音時の環境条件に応じた吸音部材を選択利用することができる。例えば、風が強い状況下においては厚みが厚く吸音性能が高い吸音部材によって風切り音等のノイズをより大幅に抑止し、風が弱い又はほとんどない状況下においては厚みが薄くマイクに届く音声の減衰が小さい吸音部材を用いる等が挙げられる。   According to 3rd Embodiment, the cover part 41 can cover a microphone with the part in which the kind of sound-absorbing members 43 and 44 which differ according to the rotation angle was provided. Thereby, the user of the recording apparatus with a microphone 1 can selectively use the sound absorbing member according to the environmental conditions at the time of recording. For example, a sound absorbing member that is thick and has high sound absorbing performance under windy conditions can significantly suppress noise such as wind noise, and attenuation of sound that reaches the microphone is thin when there is little or no wind. For example, a sound absorbing member having a small size may be used.

なお、本発明の実施形態は、今回開示された実施形態はすべての点で例示であって制限的なものではないと考えられるべきである。本発明の範囲は上記した説明ではなくて特許請求の範囲によって示され、特許請求の範囲と均等の意味および範囲内でのすべての変更が含まれることが意図される。   The embodiment of the present invention should be considered that the embodiment disclosed this time is illustrative and not restrictive in all respects. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

例えば、開口部及び当該開口部を内側から覆う吸音部材をカバー部の略Ｌ字形状部分から側板にかけて設けるようにしてもよい。これによって、側面マイク１２がより良好に音声を集音することができる。
また、前述の各実施形態はマイク付き録音装置のウインドスクリーンであるが、録音機能等を有さないマイクのウインドスクリーンとして用いてもよい。マイクの数は３つに限らず、任意の数でよい。 For example, an opening and a sound absorbing member that covers the opening from the inside may be provided from the substantially L-shaped portion of the cover to the side plate. As a result, the side microphone 12 can collect the sound better.
Moreover, although each above-mentioned embodiment is a windscreen of the recording device with a microphone, you may use it as a windscreen of the microphone which does not have a recording function etc. The number of microphones is not limited to three and may be any number.

また、前述の第１〜３の実施形態では、ウインドスクリーンの回動角度を二通り（録音時／非録音時や吸音部材の利用有無、二種の吸音部材の使い分け等）としているが、三通り以上の回動角度を設けられるようにしてもよい。例えば、第１の実施形態におけるウインドスクリーン２０の録音時の回転角度と非録音時の回転角度との間に第三の回転角度を設け、吸音部材を有しない開口部（穴等）が設けられた部分でマイクを覆うことができるようにしてもよい。   In the first to third embodiments described above, the wind screen is rotated in two ways (during recording / non-recording, whether or not a sound absorbing member is used, and whether two kinds of sound absorbing members are used properly). You may make it provide the rotation angle more than a street. For example, a third rotation angle is provided between the rotation angle during recording and the rotation angle during non-recording of the wind screen 20 in the first embodiment, and an opening (a hole or the like) that does not have a sound absorbing member is provided. It may be possible to cover the microphone with the part.

また、前述の第１〜３の実施形態では、開口部は複数の穴であり、複数の穴を一つの吸音部材が覆っているが、穴の大きさや数は問わない。例えばカバー部の一面の大部分に連続した開口部を設け、その開口部を吸音部材で覆ってもよいし、スリット形状の開口部を設けてもよい。また、複数の穴のそれぞれを個別の吸音部材で覆ってもよい。吸音部材は開口部を覆うことができればその配置は問わない。例えば開口部の内側に限らず、外側に設けてもよいし、開口部の両側を覆ってもよい。吸音部材が開口部内に介在してもよい。   In the first to third embodiments described above, the opening is a plurality of holes, and the sound absorbing member covers the plurality of holes, but the size and number of the holes are not limited. For example, a continuous opening may be provided on most of one surface of the cover, and the opening may be covered with a sound absorbing member, or a slit-shaped opening may be provided. Further, each of the plurality of holes may be covered with an individual sound absorbing member. The arrangement of the sound absorbing member is not limited as long as the opening can be covered. For example, you may provide not only inside an opening part but an outer side, and may cover the both sides of an opening part. A sound absorbing member may be interposed in the opening.

本発明の第１の実施形態であるウインドスクリーン２０を有するマイク付き録音装置１の斜視図を示す。The perspective view of the recording apparatus 1 with a microphone which has the wind screen 20 which is the 1st Embodiment of this invention is shown. ウインドスクリーンを除いたマイク付き録音装置１の構成を示す平面図を示す。図２（ａ）はＸ−Ｙ平面図、図２（ｂ）はウインドスクリーンが設けられた側のＹ−Ｚ平面図である。The top view which shows the structure of the recording device 1 with a microphone except a wind screen is shown. 2A is an XY plan view, and FIG. 2B is a YZ plan view on the side where the wind screen is provided. 録音時のマイクとウインドスクリーンの位置関係を示す。Shows the positional relationship between the microphone and windscreen during recording. カバー部２１及び筐体２に支持された状態のマイク付き録音装置を示す。2 shows a recording device with a microphone supported by a cover portion 21 and a housing 2. 非録音時のマイク付き録音装置を示す。The recording device with a microphone at the time of non-recording is shown. 非録音時のマイクとウインドスクリーンの位置関係を示す。Shows the positional relationship between the microphone and windscreen when not recording. 第２の実施形態によるウインドスクリーン３０を示す。図７（ａ）はカバー部の外周側から見た場合のＹ−Ｚ平面図、図７（ｂ）はＸ−Ｚ平面に沿った断面図である。The windscreen 30 by 2nd Embodiment is shown. 7A is a YZ plan view when viewed from the outer peripheral side of the cover portion, and FIG. 7B is a cross-sectional view along the XZ plane. 第２の実施形態によるウインドスクリーン３０を備えたマイク付き録音装置１において吸音部材２２を用いる際のマイクとウインドスクリーンの位置関係を示す。The positional relationship between the microphone and the wind screen when the sound absorbing member 22 is used in the recording device 1 with the microphone provided with the wind screen 30 according to the second embodiment is shown. 第３の実施形態によるウインドスクリーン４０を示す。The wind screen 40 by 3rd Embodiment is shown.

符号の説明Explanation of symbols

２ 筐体
１１ センターマイク
１２ 側面マイク
２０ ウインドスクリーン
２１ カバー部
２２ 吸音部材
２３ 回動軸
２５ 開口部 2 Housing 11 Center microphone 12 Side microphone 20 Wind screen 21 Cover portion 22 Sound absorbing member 23 Rotating shaft 25 Opening portion

Claims (3)

マイクを有する筐体に対して回動可能に設けられてマイクの外側を覆うカバー部を備え、
前記カバー部は、当該カバー部を貫通する第１の開口部および前記第１の開口部を覆う吸音部材を備え、
前記カバー部は、その回動角度に応じて、録音時は前記吸音部材が設けられた部分によって前記マイクを覆うとともに、設置面に前記筐体が載置されたときに所定の回動角度で当該筐体を支持し、非録音時は前記吸音部材が設けられていない部分によって前記マイクの外部に対する露出を防ぐことを特徴とするウインドスクリーン。 Provided with a cover portion that is rotatably provided with respect to the housing having the microphone and covers the outside of the microphone,
The cover portion includes a first opening that penetrates the cover portion and a sound absorbing member that covers the first opening,
The cover part, depending on the rotation angle, with the recording time covers therefore the microphone part fraction provided that the sound-absorbing element, a predetermined rotating when the casing is placed on the installation surface A windscreen that supports the casing at an angle and prevents exposure of the microphone to the outside by a portion where the sound absorbing member is not provided during non-recording . 前記マイクは、前記筐体の端部に設けられており、
前記カバー部は、断面略Ｌ字状に折曲した形状を有し、当該カバー部の折曲方向に回動可能に前記筐体に取り付けられ、断面略Ｌ字状の一方の辺に前記吸音部材が設けられていることを特徴とする請求項１に記載のウインドスクリーン。 The microphone is provided at an end of the housing,
The cover part has a shape bent in a substantially L-shaped cross section, is attached to the housing so as to be rotatable in the bending direction of the cover part, and the sound absorption is provided on one side of the substantially L-shaped cross section. The windscreen according to claim 1 , further comprising a member. 請求項１又は２に記載のウインドスクリーンを備えることを特徴とするマイク付き録音装置。A recording apparatus with a microphone, comprising the wind screen according to claim 1.
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