JPH02206975A - Image pickup device with microphone - Google Patents
Image pickup device with microphoneInfo
- Publication number
- JPH02206975A JPH02206975A JP1026632A JP2663289A JPH02206975A JP H02206975 A JPH02206975 A JP H02206975A JP 1026632 A JP1026632 A JP 1026632A JP 2663289 A JP2663289 A JP 2663289A JP H02206975 A JPH02206975 A JP H02206975A
- Authority
- JP
- Japan
- Prior art keywords
- microphone
- sensitivity
- narration
- omnidirectional microphone
- omnidirectional
- 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
- 230000035945 sensitivity Effects 0.000 claims description 15
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- -1 silver halide Chemical class 0.000 description 1
Landscapes
- Circuit For Audible Band Transducer (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、映像と共に音声を記録する撮影装置に関し、
臨場感を高めるよう改良したものである。[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a photographing device that records audio together with video.
This has been improved to enhance the sense of realism.
〈従来の技術〉
映像と共に音声を記録する撮影装置、例えｉ；Ｌ’ Ｖ
Ｔ Ｒ一体型のビデオカメラ、８ミリフイルムカメラ
、電子スチルカメラ等では、撮影対象物の音を効果的に
録音するため、撮影の状況に応じて単一指向性マイクま
たは狭指向性マイクが使用されている。また、まわりの
背景音をある程度均一に録すないときは無指向性マイク
などが使用されている。更に、指向性マイクと無指向性
マイクを併用し、屋内、屋外などの使用条件により切り
替えて用いるようにしたものもある（実願昭５９−１８
６９８８号）。<Prior art> Photographic device that records audio together with video, e.g.
For TR-integrated video cameras, 8mm film cameras, electronic still cameras, etc., unidirectional microphones or narrow-directional microphones are used depending on the shooting situation in order to effectively record the sound of the object being photographed. has been done. Additionally, omnidirectional microphones are used when the surrounding background sounds cannot be recorded evenly. Furthermore, there are also devices that use both a directional microphone and an omnidirectional microphone, and switch between them depending on the usage conditions, such as indoors and outdoors.
No. 6988).
一方、ズームレンズを具えた撮影装置では、ズーム操作
により対象物をズームアツプさせたときでも、録音特性
が変わらないとすると、不自然であるため、ズーム操作
に応じて、マイクロホンの指向性及び感度を連続的に変
化させるようにしたものも知られている（実願昭６０−
１３４０１１号）。On the other hand, with a photographic device equipped with a zoom lens, it would be unnatural if the recording characteristics did not change even when the object is zoomed in by zooming, so the directivity and sensitivity of the microphone are adjusted according to the zoom operation. It is also known that the change is made continuously (Jitsugan 1986-
No. 134011).
〈発明が解決しようとする課題〉
しかし、ズーム操作によりマイクロホンの指向性及び感
度を変化させるには、移相回路、増幅回路が必要となり
、コスト高となる傾向にあり、しかも単一のマイクロホ
ンによる集音だけでは臨場感に限界があった。<Problems to be Solved by the Invention> However, changing the directivity and sensitivity of a microphone by zooming requires a phase shift circuit and an amplification circuit, which tends to be expensive. There was a limit to the sense of realism with just sound collection.
臨場感は、撮影対象物の音を指向性マイクで集音する他
に、背景音を無指向性マイクで集音してやれば高められ
るが、ズームレンズによりズームアツプしたときまで背
景音を入れると、かえって邪魔となることとなる。The sense of presence can be enhanced by collecting the sound of the object being photographed with a directional microphone and also by collecting the background sound with an omnidirectional microphone, but if you include the background sound even when zoomed in with a zoom lens, it will be more This will become a hindrance.
一方、撮影装置には撮影者に向けてナレーシ璽ンマイク
が設置され、被写体についての解説、紹介その他のナレ
ーツシアンを録音できろものもあったが、ナレーシ冒ン
マイクは常時使用されるものでなく、その活用が望まれ
ていた。On the other hand, some of the photographic devices were equipped with a voiceover microphone aimed at the photographer, and were able to record explanations, introductions, and other voiceovers about the subject, but the voiceover microphone was not used all the time; It was hoped that it would be put to good use.
本発明は上記従来技術の実情に鑑みてなされたもので、
ナレーシ菫ンマイクの有効利用を図り、ズームレンズの
ズーム操作、焦点距離に対応した適切な臨場感の得られ
るマイク付撮影装置を提供することを目的とするもので
ある。The present invention has been made in view of the above-mentioned actual state of the prior art,
It is an object of the present invention to provide a photographing device with a microphone that makes effective use of a narcissistic microphone and provides an appropriate sense of presence corresponding to the zoom operation of the zoom lens and the focal length.
＜Ｉ！題を解決するための手段〉
斯かる目的を達成する本願にかかる第１発明の構成は、
映像と共に音声を記録する撮影装置であって、撮影対象
物の音を集音する指向性マイクの他に無指向性マイクを
具えた撮影装置において、前記無指向性マイクを撮影者
の声を集音するナレーシ嘗ンマイクとじて使用するとき
は、その感度を一定とする回路及び前記無指向性マイク
を背景音を集音するマイクとして使用するときは、その
感度をズームレンズのズーム位置及び焦点位１１に基づ
いて調節する制御回路を設け、両回路を使用目的により
切替えるスイッチを設けたことを特徴とする。<I! Means for Solving the Problem> The configuration of the first invention of the present application that achieves the above object is as follows:
In a photographing device that records sound together with images, and is equipped with an omnidirectional microphone in addition to a directional microphone that collects the sound of the object to be photographed, the omnidirectional microphone is used to collect the voice of the photographer. When using a narration microphone that produces sound, a circuit that keeps its sensitivity constant; when using the omnidirectional microphone as a microphone that collects background sounds, the sensitivity is adjusted by adjusting the zoom position and focal point of the zoom lens. The present invention is characterized in that it is provided with a control circuit that adjusts based on No. 11, and a switch that switches between the two circuits depending on the purpose of use.
また、上記目的を達成する本願にかかる第２発明の構成
は上記制御回路がズーム位置に基づかず、焦点位置のみ
に基づいて前記無指向性マイクの感度を調節することを
特徴とする。Further, a second aspect of the present invention which achieves the above object is characterized in that the control circuit adjusts the sensitivity of the omnidirectional microphone based only on the focal position, not on the zoom position.
更に、上記目的を達成する本願にかかる第３発明の構成
は上記制御回路が焦点位置に基づかず、ズーム位置のみ
に基づいて前記無指向性マイクの感度を調節することを
特徴とする。Further, a third aspect of the present invention that achieves the above object is characterized in that the control circuit adjusts the sensitivity of the omnidirectional microphone based only on the zoom position, not on the focus position.
く作 用〉
無指向性マイクをナレーシヲンマイクとして使用すると
きは、回路をスイッチ（ζて切替えろと、その感度が撮
影者の声を集音するのに適した一定の値に調節され、ま
た、無指向性マイクをナレーシヨンマイクとして用いず
に背景音を集音するマイクとして用いるときは、回路を
スイッチにて切替えると、ズームレンズのズーム位置及
び焦点位置により、臨場感あふれるようにその感度が調
節される。When using an omnidirectional microphone as a narration microphone, switch the circuit to adjust its sensitivity to a constant value suitable for collecting the photographer's voice. Also, when using an omnidirectional microphone as a microphone to collect background sounds instead of as a narration microphone, by switching the circuit, the zoom position and focus position of the zoom lens can be used to create a realistic sound. Sensitivity is adjusted.
撮影目的に応じズーム位置、焦点位置のいずれかを省略
しても、十分な臨場感を得ろことも可能である。It is also possible to obtain a sufficient sense of realism even if either the zoom position or the focus position is omitted depending on the purpose of photographing.
く実 施 例〉
以下、本発明の一実施例について図面を参照して詳細に
説明する。Embodiment Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
第１図及び第２図に本発明の一実施例を示す。両図に示
すように、本実施例にかかる撮影値Ｗ１１は、撮影対象
物をズームアツプして撮影できるようズームレンズ２を
具える他に指向性マイク３、無指向性マイク４を具えて
いる。指向性マイク３撮影対象物へ向けて装着され、そ
の出力はアンプ５により増幅されて記録装置６へ入力さ
れる。無指向性マイク４は撮影者に向けて装着され、そ
の出力はナレーションスイッチ７によりアンプ８，９に
より選択的に増幅されて記録装置６へ入力される。記録
装置６は、指向性マイク３、無指向性マイク４からの出
力を混成して、映像と共に記録媒体に記録する。記録媒
体としては磁気テープ、銀塩フィルム、電子写真用フロ
ッピーその他のものが用いられろ。An embodiment of the present invention is shown in FIGS. 1 and 2. FIG. As shown in both figures, the photographing value W11 according to this embodiment is equipped with a directional microphone 3 and an omnidirectional microphone 4 in addition to a zoom lens 2 so as to be able to zoom up and photograph an object. A directional microphone 3 is attached to face the object to be photographed, and its output is amplified by an amplifier 5 and input to a recording device 6. An omnidirectional microphone 4 is mounted facing the photographer, and its output is selectively amplified by amplifiers 8 and 9 via a narration switch 7 and input to the recording device 6. The recording device 6 mixes the outputs from the directional microphone 3 and the omnidirectional microphone 4 and records the mixed output together with the video onto a recording medium. As the recording medium, magnetic tape, silver halide film, electrophotographic floppy disk, and other media may be used.
更に、本発明ではナレーションスイッチ７をＯＦＦとし
た時にも無指向性マイク４を有効活用できるよう、その
出力をアンプ８により増幅するようにしている。即ち、
撮影者の音声を集音するときには、ナレーションスイッ
チ７をＯＮとして無指向性マイク４の出力をアンプ９に
て増幅し、そのゲインは撮影者の音声集音に適用する一
定の値に設定されている。一方、撮影者の音声を集音し
ないときには、ナレーションスイッチ７をＯＦＦとして
、無指向性マイク４の出力をアンプ８にて増幅するが、
そのゲインは制御回路１０により調節される。制御回路
１０は、ズームレンズ２のズーム位置及び焦点位置に基
づいてアンプ８のゲインを調整する。例えば、ズームレ
ンズ２により画角を広角（ＷＩＤＥ）とした場合と挟角
（Ｔ Ｅ Ｌ Ｅ）とした場合に分けると共に焦点距離
を遠近に分けて、表−１に示すようにマイク８のゲイン
を調節する。Further, in the present invention, the output of the omnidirectional microphone 4 is amplified by the amplifier 8 so that the omnidirectional microphone 4 can be effectively utilized even when the narration switch 7 is turned off. That is,
When collecting the photographer's voice, the narration switch 7 is turned on and the output of the omnidirectional microphone 4 is amplified by the amplifier 9, and the gain is set to a constant value applied to the photographer's voice collection. There is. On the other hand, when the photographer's voice is not being collected, the narration switch 7 is turned OFF and the output of the omnidirectional microphone 4 is amplified by the amplifier 8.
Its gain is adjusted by control circuit 10. The control circuit 10 adjusts the gain of the amplifier 8 based on the zoom position and focal position of the zoom lens 2. For example, by dividing the angle of view into wide-angle (WIDE) and narrow-angle (TELE) using the zoom lens 2, and dividing the focal length into far and near, the gain of the microphone 8 can be adjusted as shown in Table 1. Adjust.
つまり、ズームレンズ２の画角がＷＩＤＥで焦点距離が
近いときにはゲインを大として、ズームレンズの画角が
置Ｅで焦点距離が近いとき又はズームレンズの画角がＷ
ＩＤＥで焦点距離が遠いときにはゲインを中とし、ズー
ムレンズ２の画角が１’ Ｅ Ｌ Ｅで焦点距離が遠の
ときにはゲインを小とするのである。In other words, when the angle of view of the zoom lens 2 is WIDE and the focal length is close, the gain is increased, and when the angle of view of the zoom lens 2 is WIDE and the focal length is close, or when the angle of view of the zoom lens is WIDE, the gain is increased.
When the focal length is long with IDE, the gain is set to medium, and when the angle of view of the zoom lens 2 is 1'ELE and the focal length is long, the gain is set to small.
尚、表−１の内容は一例であって、本発明はこれに限ら
れろものではなく、臨場感を高めるように他の調節方法
を用いても良い。例えば、画角、焦点距離に応じてアン
プ８のゲインを連続的に増減するようにしても良い。Note that the contents of Table 1 are merely examples, and the present invention is not limited thereto, and other adjustment methods may be used to enhance the sense of realism. For example, the gain of the amplifier 8 may be continuously increased or decreased depending on the angle of view and focal length.
更には、ズームレンズ２のズーム位ｕ、 焦点位置の双
方に基づいて必ずしも制御する必要はなく、撮影の目的
２条件に応じ、いずれかを省略して制御しても良い。つ
まり、ズームレンズ２のズーム位置に基づかず、焦点位
置のみに基づいてアンプ８のゲインを調節し、あるいは
焦点位置に基づかず、ズームレンズ２のズーム位置のみ
に基づいて、アンプ８のゲインを調節しても良い。この
ような調節によっても、臨場感が高められろ。Furthermore, it is not necessarily necessary to control based on both the zoom position u and the focal position of the zoom lens 2, and either one may be omitted and controlled depending on the two conditions of the purpose of photographing. In other words, the gain of the amplifier 8 is adjusted not based on the zoom position of the zoom lens 2 but only based on the focal position, or the gain of the amplifier 8 is adjusted not based on the focal position but only based on the zoom position of the zoom lens 2. You may do so. Adjustments like this can also enhance the sense of realism.
また、上記実施例では無指向性マイク４の感度をｔｌｌ
ｌ！［する方法として、アンプ８のゲインを増減するこ
とによって行っていたが、これに限るものではなく、減
衰器を使用したり、周波数帯域の変更などを併用するな
どにより無指向性マイク４の感度を調整するようにして
も良い。更には、無指向性マイクの感度の調整に応じ、
あるいはこれに応じることなく指向性マイク３のアンプ
５のゲインもズーム位置、焦点位置により調節するよう
にしても良い。Further, in the above embodiment, the sensitivity of the omnidirectional microphone 4 is set to tll.
l! [The method used to do this was to increase or decrease the gain of the amplifier 8, but the sensitivity of the omnidirectional microphone 4 could be improved by using an attenuator, changing the frequency band, etc. You may also adjust the . Furthermore, depending on the sensitivity adjustment of the omnidirectional microphone,
Alternatively, the gain of the amplifier 5 of the directional microphone 3 may also be adjusted depending on the zoom position and focal position without responding to this.
〈発明の詳細な説明〉
以上、実施例に基づいて具体的に説明したように本発明
はナレーションマイクとして使用されないときに無指向
性マイクを有効に活用するので、指向性マイクのみでは
得られない臨場感を得ろことができ、また、特殊なマイ
クを必要とすることもない。<Detailed Description of the Invention> As specifically explained above based on the embodiments, the present invention effectively utilizes an omnidirectional microphone when it is not used as a narration microphone, so it provides advantages that cannot be obtained with only a directional microphone. You can get a sense of realism, and you don't need a special microphone.
第１図、第２図はそれぞれ本発明の一実施例にかかるマ
イク付撮影装置の電気回路図、外観図である。
図 面 中、
１は撮影装置、
２はズームレンズ、
３は指向性マイク、
４は無指向性マイク、
５．８．９はアンプ、
６は記録装置、
７はナレーシマンスイッチ）
１０は制御回路である。FIG. 1 and FIG. 2 are an electric circuit diagram and an external view, respectively, of a photographing device with a microphone according to an embodiment of the present invention. In the drawing, 1 is a photographing device, 2 is a zoom lens, 3 is a directional microphone, 4 is an omnidirectional microphone, 5, 8, 9 is an amplifier, 6 is a recording device, 7 is a narration control switch) 10 is a control circuit It is.
Claims (3)
影対象物の音を集音する指向性マイクの他に無指向性マ
イクを具えた撮影装置において、前記無指向性マイクを
撮影者の声を集音するナレーションマイクとして使用す
るときは、その感度を一定とする回路及び前記無指向性
マイクを背景音を集音するマイクとして使用するときは
、その感度をズームレンズのズーム位置及び焦点位置に
基づいて調節する制御回路を設け、両回路を使用目的に
より切替えるスイッチを設けたことを特徴とするマイク
付撮影装置。(1) In a photographing device that records sound together with images and is equipped with an omnidirectional microphone in addition to a directional microphone that collects the sound of the object to be photographed, the omnidirectional microphone is used by the photographer. When the omnidirectional microphone is used as a narration microphone to collect voices, the sensitivity is kept constant. When the omnidirectional microphone is used as a microphone to collect background sounds, the sensitivity is controlled by the zoom position and focus of the zoom lens. A photographing device with a microphone, characterized in that it is provided with a control circuit that adjusts based on position, and a switch that switches between both circuits depending on the purpose of use.
置に基づかず、焦点位置のみに基づいて前記無指向性マ
イクの感度を調節することを特徴とするマイク付撮影装
置。(2) The photographing device with a microphone, wherein the control circuit according to claim (1) adjusts the sensitivity of the omnidirectional microphone not based on the zoom position but only on the basis of the focal position.
に基づかず、ズーム位置のみに基づいて前記無指向性マ
イクの感度を調節することを特徴とするマイク付撮影装
置。(3) The photographing device with a microphone, wherein the control circuit according to claim (1) adjusts the sensitivity of the omnidirectional microphone not based on the focal position but only on the basis of the zoom position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1026632A JPH02206975A (en) | 1989-02-07 | 1989-02-07 | Image pickup device with microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1026632A JPH02206975A (en) | 1989-02-07 | 1989-02-07 | Image pickup device with microphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02206975A true JPH02206975A (en) | 1990-08-16 |
Family
ID=12198825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1026632A Pending JPH02206975A (en) | 1989-02-07 | 1989-02-07 | Image pickup device with microphone |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02206975A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5521635A (en) * | 1990-07-26 | 1996-05-28 | Mitsubishi Denki Kabushiki Kaisha | Voice filter system for a video camera |
| JP2002209133A (en) * | 2001-01-12 | 2002-07-26 | Fuji Photo Film Co Ltd | Image pickup device with communication function |
| JP2011130469A (en) * | 2011-01-21 | 2011-06-30 | Hitachi Ltd | Video camera |
| WO2011162898A1 (en) * | 2010-06-23 | 2011-12-29 | Motorola Mobility, Inc. | Electronic apparatus having microphones with controllable front-side gain and rear-side gain |
| US11153472B2 (en) | 2005-10-17 | 2021-10-19 | Cutting Edge Vision, LLC | Automatic upload of pictures from a camera |
-
1989
- 1989-02-07 JP JP1026632A patent/JPH02206975A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5521635A (en) * | 1990-07-26 | 1996-05-28 | Mitsubishi Denki Kabushiki Kaisha | Voice filter system for a video camera |
| US5548335A (en) * | 1990-07-26 | 1996-08-20 | Mitsubishi Denki Kabushiki Kaisha | Dual directional microphone video camera having operator voice cancellation and control |
| US5579046A (en) * | 1990-07-26 | 1996-11-26 | Mitsubishi Denki Kabushiki Kaisha | Voice filter system for a video camera |
| JP2002209133A (en) * | 2001-01-12 | 2002-07-26 | Fuji Photo Film Co Ltd | Image pickup device with communication function |
| US11153472B2 (en) | 2005-10-17 | 2021-10-19 | Cutting Edge Vision, LLC | Automatic upload of pictures from a camera |
| US11818458B2 (en) | 2005-10-17 | 2023-11-14 | Cutting Edge Vision, LLC | Camera touchpad |
| WO2011162898A1 (en) * | 2010-06-23 | 2011-12-29 | Motorola Mobility, Inc. | Electronic apparatus having microphones with controllable front-side gain and rear-side gain |
| US8300845B2 (en) | 2010-06-23 | 2012-10-30 | Motorola Mobility Llc | Electronic apparatus having microphones with controllable front-side gain and rear-side gain |
| US8908880B2 (en) | 2010-06-23 | 2014-12-09 | Motorola Mobility Llc | Electronic apparatus having microphones with controllable front-side gain and rear-side gain |
| JP2011130469A (en) * | 2011-01-21 | 2011-06-30 | Hitachi Ltd | Video camera |
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