JP2614509B2 - Sound signal measuring device - Google Patents
Sound signal measuring deviceInfo
- Publication number
- JP2614509B2 JP2614509B2 JP1049438A JP4943889A JP2614509B2 JP 2614509 B2 JP2614509 B2 JP 2614509B2 JP 1049438 A JP1049438 A JP 1049438A JP 4943889 A JP4943889 A JP 4943889A JP 2614509 B2 JP2614509 B2 JP 2614509B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- sound
- sounding
- section
- timer circuit
- 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.)
- Expired - Fee Related
Links
Description
【発明の詳細な説明】 産業上の利用分野 この発明は音の遮断が必要とされるマンション、ホテ
ル、オフィスビル等の音響特性を測定する装置に関す
る。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for measuring acoustic characteristics of condominiums, hotels, office buildings, and the like in which sound isolation is required.
従来の技術 壁で仕切られた２室間の音圧レベル差を測定する場
合、音源側の音圧レベルと壁で仕切られた受音側の音圧
レベルの測定が必要とされる。ところで、音圧レベルの
測定にあたり、音源側で音圧を断続的に発生させ、受音
側でその断続的な音圧信号に同期させて、音圧レベルを
測定する場合には、音源側に設けた発音部と、受音側で
それを測定する受音部間の同期をとる必要があり、この
場合は２つの装置間を同期をとるための信号線で接続し
ていた。2. Description of the Related Art When measuring a sound pressure level difference between two rooms partitioned by a wall, it is necessary to measure a sound pressure level on a sound source side and a sound pressure level on a sound receiving side partitioned by a wall. By the way, when measuring the sound pressure level, when the sound pressure is intermittently generated on the sound source side and synchronized with the intermittent sound pressure signal on the sound receiving side, the sound pressure level is measured on the sound source side. It is necessary to synchronize between the provided sound generating unit and the sound receiving unit that measures it on the sound receiving side. In this case, the two devices are connected by a signal line for synchronizing.
発明が解決しようとする課題 しかしながら、これにおいては、音源部と受音部とを
結ぶ信号線を２室間に設けられた扉等の隙間を介して通
すことになるが、隙間が十分とれない場合、あるいは隙
間が測定値に影響する場合等では信号線を通すこと自体
が困難となり、信頼性の高い測定ができなかった。However, in this case, a signal line connecting the sound source section and the sound receiving section is passed through a gap such as a door provided between the two rooms, but the gap is not sufficient. In such a case, or when the gap affects the measured value, it is difficult to pass the signal line itself, and a highly reliable measurement cannot be performed.
特に、差分累積法によりパワーを求めるに際しては、
信号の発生と、それに基づく受音側での応答とを完全に
同期させて測定する必要があるが、信号線が結べない場
合は、発音部と受音部との間で直接同期信号の伝達を行
なえないため、正確に同期を取ることが難しく、結局測
定結果の信頼度の低下が避けられなかった。In particular, when obtaining power by the difference accumulation method,
It is necessary to completely synchronize the signal generation with the response on the sound receiving side based on the measurement, but if the signal line cannot be connected, direct transmission of the synchronization signal between the sound generator and the sound receiver Therefore, it is difficult to achieve accurate synchronization, and the reliability of the measurement result is inevitably reduced.
課題を解決するための手段 本発明は上記のような問題点を解消するためになされ
たもので、発音部と受音部とにそれぞれ同期を取ったタ
イマー機能をもたせ、それにより、信号線の接続なしに
発音部と受音部間の同期化を行なったものである。Means for Solving the Problems The present invention has been made in order to solve the above-described problems, and has a timer function synchronized with each of a sound generating unit and a sound receiving unit, thereby enabling a signal line to be connected. Synchronization between the sound generator and the sound receiver is performed without connection.
すなわち、本発明は壁によって仕切られた２室間の音
圧レベル差を測定する装置において、信号を発生する信
号発生器、この信号発生器の出力を制御する発音タイマ
ー回路、この発音タイマー回路によって制御された上記
信号発生器の出力信号を増幅し音を発生する電力増幅器
及びスピーカを有する発音部と、上記発音部のスピーカ
から発生された音圧を検出するマイクロホン、このマイ
クロホンの出力信号から音響信号のパワーを演算する信
号処理部、上記発音部の発音タイマー回路と同期して発
音区間と対応したタイミング信号を上記信号処理部に送
出する受音タイマー回路を有する受音部とからなる。That is, the present invention provides a device for measuring a sound pressure level difference between two rooms partitioned by a wall, a signal generator for generating a signal, a sounding timer circuit for controlling the output of the signal generator, and a sounding timer circuit. A sounding section having a power amplifier and a speaker for amplifying an output signal of the controlled signal generator to generate sound, a microphone for detecting a sound pressure generated from a speaker of the sounding section, and a sound output from the microphone. A signal processing unit for calculating the power of the signal; and a sound receiving unit having a sound receiving timer circuit for transmitting a timing signal corresponding to a sounding section to the signal processing unit in synchronization with the sounding timer circuit of the sounding unit.
作用 以上のものにおいては、測定に先立って発音部の受音
タイマー回路と受音部の受音タイマー回路を同期させ
る。そして、測定に際しては、発音部と受音部をそれぞ
れの配置場所に移動し、その後タイムスケジュールに沿
ってその各タイマー回路で同期した所定時間間隔ごとに
発音と受音とを行なわせる。Operation In the above, prior to the measurement, the sound receiving timer circuit of the sound generating unit and the sound receiving timer circuit of the sound receiving unit are synchronized. Then, at the time of measurement, the sounding section and the sound receiving section are moved to their respective locations, and thereafter, sound generation and sound receiving are performed at predetermined time intervals synchronized by the respective timer circuits according to the time schedule.
実施例 以下、この発明を実施例に基づいて説明する。Examples Hereinafter, the present invention will be described based on examples.
本発明の音響信号測定装置の実施例を示す第１図にお
いて、10は発音部であり、リセット信号12の入力端を有
する発音タイマー回路11、その発音タイマー回路11の制
御信号出力端と接続された信号発生器13、その信号発生
器13の出力端と接続された電力増幅器14、その電力増幅
器14の出力端と接続されたスピーカ15とからなる。ま
た、20は受音部であり、マイクロホン23と、その出力端
と接続された信号処理装置24と、その信号処理装置24と
接続され、上記マイクロホン23の出力の取込み区間およ
びその取込信号の演算タイミング等の制御信号を送出す
る受音タイマー回路21とからなり、その受音タイマー回
路21にもリセット信号22の入力端が設けられている。In FIG. 1 showing an embodiment of the sound signal measuring device of the present invention, reference numeral 10 denotes a sounding unit, which is connected to a sounding timer circuit 11 having an input terminal for a reset signal 12, and a control signal output terminal of the sounding timer circuit 11. A signal amplifier 13, a power amplifier 14 connected to the output terminal of the signal generator 13, and a speaker 15 connected to the output terminal of the power amplifier 14. Reference numeral 20 denotes a sound receiving unit, which includes a microphone 23, a signal processing device 24 connected to the output terminal thereof, and a signal receiving device connected to the signal processing device 24. A sound receiving timer circuit 21 for transmitting a control signal such as a calculation timing is provided. The sound receiving timer circuit 21 is also provided with an input terminal for a reset signal 22.
以上のものにおいて、測定開始に際してはまず、発音
部10に設けられた発音タイマー回路11と受音部20に設け
られた受音タイマー回路21にそれぞれ同一タイミングで
第２図（イ）に示すリセット信号12、22を加え、それぞ
れの時間計数機能を予め同期させておく。In the above, when the measurement is started, first, the sound generation timer circuit 11 provided in the sound generation unit 10 and the sound reception timer circuit 21 provided in the sound reception unit 20 are reset at the same timing as shown in FIG. Signals 12 and 22 are added to synchronize the respective time counting functions in advance.
このリセット信号12、22により、発音部10の発音タイ
マー回路11は、予め設定された時間間隔に従って信号発
生器13の信号出力時間の制御を行なう。第２図（ロ）
は、上記発音タイマー回路11の出力信号を示すものであ
り、図中T1は信号発生区間を、またT2は信号停止区間を
示す。In response to the reset signals 12 and 22, the sound generation timer circuit 11 of the sound generation unit 10 controls the signal output time of the signal generator 13 according to a preset time interval. Fig. 2 (b)
Is indicative of the output signal of the sound timer circuit 11, reference numeral T 1 is also T 2 the signal generating section, shows the signal stop section.
信号発生器13は、この発音タイマー回路11の出力信号
によって制御され、第２図（ハ）に示すように断続的な
信号を出力し、これが電力増幅器14で増幅され、スピー
カ15より音として発生される。The signal generator 13 is controlled by the output signal of the sounding timer circuit 11 and outputs an intermittent signal as shown in FIG. 2 (c), which is amplified by the power amplifier 14 and generated as sound from the speaker 15. Is done.
一方、受音部20ではマイクロホン23で音圧が第２図
（ニ）に示すような電気信号に変換されて検出され、信
号処理装置24に送られる。信号処理装置24は、上記発音
タイマー回路11と同期して動作する第２図（ホ）に示す
受音タイマー回路21の出力信号により、信号取込み及び
演算タイミングが制御されており、上記マイクロホン23
の出力信号は上記信号発生器13の信号発生区間に発生し
た信号と、信号停止区間の信号、すなわち外部雑音とに
識別され、それぞれの区間の音圧レベル（パワー）が各
別に演算される。On the other hand, in the sound receiving section 20, the sound pressure is converted into an electric signal as shown in FIG. 2 (d) by the microphone 23, detected, and sent to the signal processing device 24. In the signal processing device 24, the signal acquisition and calculation timing are controlled by the output signal of the sound receiving timer circuit 21 shown in FIG.
Are distinguished into a signal generated in the signal generation section of the signal generator 13 and a signal in the signal stop section, that is, external noise, and the sound pressure level (power) in each section is calculated separately.
この信号処理装置24における信号発生区間と信号停止
区間のそれぞれの区間に対応した音圧レベル（パワー）
の演算により、精度の高い計測が行なえるとともに、外
部雑音を低減できる。Sound pressure level (power) corresponding to each of the signal generation section and the signal stop section in the signal processing device 24
By performing the calculation of, measurement with high accuracy can be performed and external noise can be reduced.
発明の効果 以上のとおりであり、本発明は発音部と受音部の２つ
の装置間に互いに同期のとれたタイマー機能をもたせて
なるものであり、２つの装置間に信号線を設けることな
く、精度の高い測定を行なうことができる。Effects of the Invention As described above, the present invention has a timer function synchronized with each other between the two units of the sound generating unit and the sound receiving unit, without providing a signal line between the two units. And highly accurate measurement can be performed.
第１図は本発明の実施例を示すブロック図、第２図は第
１図の各ブロックの動作タイミング波形図である。 10:発音部、11:発音タイマー回路 13:信号発生器、14:電力増幅器 15:スピーカ、20:受音部 21:受音タイマー回路 24:信号処理装置FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is an operation timing waveform diagram of each block in FIG. 10: sounding section, 11: sounding timer circuit 13: signal generator, 14: power amplifier 15: speaker, 20: sound receiving section 21: sound receiving timer circuit 24: signal processing device
フロントページの続き (56)参考文献 特開 平２−124434（ＪＰ，Ａ) 特開 昭56−4018（ＪＰ，Ａ) 特開 昭56−63221（ＪＰ，Ａ) 特開 昭55−60821（ＪＰ，Ａ) 実開 昭55−65523（ＪＰ，Ｕ) 実開 昭56−58527（ＪＰ，Ｕ)Continuation of front page (56) References JP-A-2-124434 (JP, A) JP-A-56-4018 (JP, A) JP-A-56-63221 (JP, A) JP-A-55-60821 (JP) , A) Japanese Utility Model Showa 55-65523 (JP, U) Japanese Utility Model Showa 56-58527 (JP, U)
Claims (1)
差を測定する装置であって、信号を発生する信号発生
器、この信号発生器の出力を制御する発音タイマー回
路、この発音タイマー回路によって制御された上記信号
発生器の出力信号を増幅し音を発生する電力増幅器及び
スピーカを有する発音部と、上記発音部のスピーカから
発生された音圧を検出するマイクロホン、このマイクロ
ホンの出力信号から音響信号のパワーを演算する信号処
理部、上記発音部の発音タイマー回路と同期して発音区
間と対応したタイミング信号を上記信号処理部に送出す
る受音タイマー回路を有する受音部とからなるところの
音響信号測定装置。1. An apparatus for measuring a sound pressure level difference between two rooms partitioned by a wall, comprising: a signal generator for generating a signal; a sounding timer circuit for controlling an output of the signal generator; and a sounding timer. A sounding section having a power amplifier and a speaker for amplifying an output signal of the signal generator controlled by a circuit to generate sound, a microphone for detecting a sound pressure generated from a speaker of the sounding section, and an output signal of the microphone And a sound receiving section having a sound receiving timer circuit for transmitting a timing signal corresponding to a sounding section to the signal processing section in synchronization with the sounding timer circuit of the sounding section. Acoustic signal measuring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1049438A JP2614509B2 (en) | 1989-03-01 | 1989-03-01 | Sound signal measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1049438A JP2614509B2 (en) | 1989-03-01 | 1989-03-01 | Sound signal measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02228554A JPH02228554A (en) | 1990-09-11 |
| JP2614509B2 true JP2614509B2 (en) | 1997-05-28 |
Family
ID=12831116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1049438A Expired - Fee Related JP2614509B2 (en) | 1989-03-01 | 1989-03-01 | Sound signal measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2614509B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102051749B1 (en) * | 2018-05-14 | 2019-12-04 | 주식회사 씨그널정보통신 | Plc network signal interference sensing system and signal interference sensing method using the same |
-
1989
- 1989-03-01 JP JP1049438A patent/JP2614509B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02228554A (en) | 1990-09-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |