JPS62276998A - Microphone device - Google Patents
Microphone deviceInfo
- Publication number
- JPS62276998A JPS62276998A JP10734187A JP10734187A JPS62276998A JP S62276998 A JPS62276998 A JP S62276998A JP 10734187 A JP10734187 A JP 10734187A JP 10734187 A JP10734187 A JP 10734187A JP S62276998 A JPS62276998 A JP S62276998A
- Authority
- JP
- Japan
- Prior art keywords
- microphone
- output
- digital
- analog
- converter
- 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.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
Landscapes
- Details Of Audible-Bandwidth Transducers (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
Description
【発明の詳細な説明】
発明の詳細な説明
本発明はマイクロホン装置に係り、特に、デジタル及び
アナログ信号出力の得られるマイクロホン装置に関する
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a microphone device, and more particularly to a microphone device capable of outputting digital and analog signals.
従来のマイクロホン装置は、マイクロホンケース内に音
波によって振動膜ないし振動板に生じる機械的振動に比
例したアナログ電気信号を得る振動−電気変換器と、こ
の振動−電気変換器からのアナログ電気信号を増幅する
アンプとが収納され、マイクロホン出力としてアナログ
信号が取り出される構造になっている。Conventional microphone devices include a vibration-to-electrical converter in a microphone case that obtains an analog electrical signal proportional to the mechanical vibration generated in a diaphragm or diaphragm by sound waves, and amplify the analog electrical signal from this vibration-to-electrical converter. The structure is such that an analog signal is extracted as a microphone output.
しかし、このような従来のマイクロホン装置では、マイ
クロホン装置からのケーブルが長くなると高域成分が劣
化したり、雑音が混入するなどの欠点がある。However, such conventional microphone devices have drawbacks such as deterioration of high-frequency components and mixing of noise when the cable from the microphone device becomes long.
振動−電気変換器からのアナログ電気信号で適当な周波
数の電波を変調し、その被変調波を送信する無線マイク
ロホン装置でも、電界強度によりやはり雑音が混入する
などの欠点がある。Even with wireless microphone devices that modulate radio waves of a suitable frequency with analog electrical signals from a vibro-electrical converter and transmit the modulated waves, they still have drawbacks such as noise being mixed in due to the strength of the electric field.
この発明は、これらの欠点や不都合のないまったく新規
なマイクロホン装置を提供するものである。The present invention provides a completely new microphone device that is free from these drawbacks and inconveniences.
年４図はこの発明のマイクロホン装置の一例でマイクロ
ホンケースｆｌｌ内に、振動−電気変換器（２）と、こ
の振動−電気変換器〔２）からのアナログ電気信号を増
幅するアンプ（３）と、このアンプ（３）を通じたアナ
ログ電気信号をデジタル電気信号に変換するＡ−Ｄ変換
器（４）と、このＡ−Ｄ変換器（４）のデジタル出力及
び上述のアンプ（３）からのアナログ出力を切換える切
換手段（５）を収納する。Figure 4 shows an example of the microphone device of the present invention, which includes a vibration-to-electricity converter (2) and an amplifier (3) for amplifying the analog electrical signal from the vibration-to-electricity converter [2] in the microphone case. , an A-D converter (4) that converts the analog electrical signal passed through this amplifier (3) into a digital electrical signal, and a digital output of this A-D converter (4) and an analog output from the above-mentioned amplifier (3). A switching means (5) for switching the output is housed.
切換手段（５）はマイクロホンケース（１）の外部から
操作出来る様に取り付けられた例えばスライドスイッチ
であり、このスライドスイッチは接点ａ。The switching means (5) is, for example, a slide switch mounted so as to be operable from the outside of the microphone case (1), and this slide switch is a contact a.
ｂとコモン接点Ｃ並にスライド接片（６）より成り、Ａ
−Ｄ変換器（４）の出力端は接点ａに接続され、アンプ
（３）の出力端は接点すに接続され、コモン接点Ｃはマ
イクロホンケース（１１の外部に導出されたケーブル（
７）に接続されている。切換手段（５）のスライド接片
（６）はコモン接点Ｃと接点ａ間或はコモン接点Ｃと接
点す間をスライドすることで接点間を橋絡し、Ａ−Ｄ変
換器（４）のデジタル出力又はアンプ（３）からのアナ
ログ信号出力をコモン接点Ｃを通してケーブル（７）か
ら導出する様に成されている。B and common contact C as well as a slide contact piece (6), A
The output end of the -D converter (4) is connected to the contact a, the output end of the amplifier (3) is connected to the contact A, and the common contact C is connected to the cable led out from the microphone case (11).
7). The sliding contact piece (6) of the switching means (5) bridges the contacts by sliding between the common contact C and the contact a or between the common contact C and the contact, and connects the A-D converter (4). The digital output or analog signal output from the amplifier (3) is led out from the cable (7) through the common contact C.
ここで、Ａ−Ｄ変換器（４）におけるＡ−Ｄ変換方法と
しては、パルス幅変調（ＰＷＭ） 、パルス位置変ｉｌ
ｌ（ＰＰＭ） 、パルス政変ｆｆ１（ｐＮｈ） 、パル
ス符号ｉ ｉｌｌ（ＰＣＭ）などの方法をとることがで
きる。特にパルス符号変調が好適である。Here, the A-D conversion method in the A-D converter (4) includes pulse width modulation (PWM), pulse position change
Methods such as l (PPM), pulse code i ill (pNh), and pulse code i ill (PCM) can be used. Pulse code modulation is particularly suitable.
この発明のようにマイクロホンケース（１）内にＡ−Ｄ
変換器（４）を収納してマイクロホン出力とじてデジタ
ル出力を取り出すようにする場合には、スタジオなどの
受信設備もそれに対応した構成でデジタル入力信号を受
は入れる構成とする必要がある。しかし、従来のマイク
ロホン装置は前述のようにマイクロホン出力としてアナ
ログ出力を取り出すようになっており、スタジオなどの
受信設備もそれに対応した構成になっている。A-D in the microphone case (1) as in this invention.
In the case where the converter (4) is housed and the digital output is taken out through the microphone output, the receiving equipment in the studio or the like must also be configured to accept the digital input signal. However, as described above, conventional microphone devices output analog output as the microphone output, and reception equipment in studios and the like is also configured to accommodate this.
奏→図はこの点を考慮していずれの受信設備でも使用出
来る構成となっている。With this in mind, the configuration of the figure is such that it can be used with any receiving equipment.
この発明によれば、マイクロホンケース（１１内に振動
−電気変換１Ｆ２＋とこの振動−電気変）兵器（２）か
らのアナログ電気信号をデジタル電気信号に変換するＡ
−Ｄ変換器（４）と切換手段（５）を収納し、マイクロ
ホン出力としてデジタル又はアナログ信号出力を取り出
すものであるから、マイクロホン装置からの出力信号を
受ける受信装置側（端的に言えば、マイクロホンが接続
される装置、例えばテープレコーダ、ミキシング装置等
）がデジタル入力対応になっていない場合はマイクロホ
ン装置の切換をアナログ側に切換操作することによりア
ナログ用の受信装置を利用できる。According to this invention, the microphone case (within the vibration-electrical converter 1F2+ and this vibration-electrical converter) A converts an analog electrical signal from the weapon (2) into a digital electrical signal.
- Since it houses the D converter (4) and the switching means (5) and takes out the digital or analog signal output as the microphone output, the receiver side that receives the output signal from the microphone device (to put it simply, the microphone If the device to which the microphone is connected (for example, a tape recorder, mixing device, etc.) does not support digital input, an analog receiving device can be used by switching the microphone device to the analog side.
又マイクロホン装置からの出力が伝送中に減衰してしま
ってもいいような場合、例えば、パーティ等の司会用の
マイクとして使用する場合や、伝送する距離が比較的短
い場合、更には伝送中に若干ノイズが混入もしくは外部
からの影響を受けてもよい場合はあえてデジタル変換し
て伝送する必要はない、この場合は切換手段をアナログ
出力側にし、レコーディング時など外部からの影響を受
けたくない場合、更には、長距離電送をするような場合
は、切換手段をデジタル出力側に切換えればよい。In addition, in cases where the output from a microphone device can be attenuated during transmission, for example, when it is used as a microphone for a moderator at a party, or when the transmission distance is relatively short, If you don't mind some noise or external influences, there is no need to digitally convert and transmit. In this case, set the switching means to the analog output side, and when you do not want to be affected by external influences, such as when recording. Furthermore, in the case of long-distance transmission, the switching means may be switched to the digital output side.
更に本発明ではＡ−Ｄ変換してデジタル出力を取り出す
ときには信号情報の劣化のない音声信号が得られる。Further, according to the present invention, an audio signal without deterioration of signal information can be obtained when digital output is extracted through A-D conversion.
図は本発明の１実施例を示すマイクロホン装置の系統図
である。
（１）はマイクロホンケース、（２）は振動−電気変換
器、（４）はＡ−Ｄ変換器である。The figure is a system diagram of a microphone device showing one embodiment of the present invention. (1) is a microphone case, (2) is a vibration-electric converter, and (4) is an AD converter.
Claims (1)
変換するＡ−Ｄ変換器を、マイクロホンケース内に収納
したマイクロホン装置に於いて、上記振動−電気変換器
からの出力と、上記Ａ−Ｄ変換器からの出力を選択的に
切換える切換手段を上記マイクロホンケースに配設して
成るマイクロホン装置。In a microphone device in which an A-D converter that converts an analog output from a vibratory-electrical converter into a digital signal is housed in a microphone case, the output from the vibratory-electrical converter and the A-D converter are A microphone device comprising a switching means for selectively switching the output from the microphone, which is disposed in the microphone case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10734187A JPH0752993B2 (en) | 1987-04-30 | 1987-04-30 | Microphone device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10734187A JPH0752993B2 (en) | 1987-04-30 | 1987-04-30 | Microphone device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16622679A Division JPS5689195A (en) | 1979-12-20 | 1979-12-20 | Microphone device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62276998A true JPS62276998A (en) | 1987-12-01 |
| JPH0752993B2 JPH0752993B2 (en) | 1995-06-05 |
Family
ID=14456596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10734187A Expired - Lifetime JPH0752993B2 (en) | 1987-04-30 | 1987-04-30 | Microphone device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0752993B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7574011B2 (en) | 2003-05-07 | 2009-08-11 | Sennheiser Electronic Gmbh & Co. Kg | Detection device |
-
1987
- 1987-04-30 JP JP10734187A patent/JPH0752993B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7574011B2 (en) | 2003-05-07 | 2009-08-11 | Sennheiser Electronic Gmbh & Co. Kg | Detection device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0752993B2 (en) | 1995-06-05 |
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