JP2954978B2 - Component sound automatic output device - Google Patents
Component sound automatic output deviceInfo
- Publication number
- JP2954978B2 JP2954978B2 JP11854090A JP11854090A JP2954978B2 JP 2954978 B2 JP2954978 B2 JP 2954978B2 JP 11854090 A JP11854090 A JP 11854090A JP 11854090 A JP11854090 A JP 11854090A JP 2954978 B2 JP2954978 B2 JP 2954978B2
- Authority
- JP
- Japan
- Prior art keywords
- sound
- contribution
- real
- time frequency
- constituent
- 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
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Description
【発明の詳細な説明】 ［発明の目的］ （産業上の利用分野） 本発明は、合成音における各種構成音の寄与度を、自
動的に出力する構成音寄与度自動出力装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a component sound contribution automatic output device that automatically outputs the contribution of various constituent sounds in a synthetic sound.
（従来の技術） 従来、合成音は1/Nオクターブ分析計または高速フー
リエ変換装置（FFT）によって、実時間周波数分析され
る装置があった。(Prior Art) Conventionally, there has been a device in which a synthesized sound is subjected to real-time frequency analysis by a 1 / N octave analyzer or a fast Fourier transform device (FFT).
（発明が解決しようとする課題） ところで、上記実時間周波数分析装置は、単に構成音
の実時間周波数分析を行うものであって、合成音を構成
する各種構成音がその合成音（全体音）に、何％寄与し
ているかについては、全く何らの情報を出力するもので
はなかった。従って、前記実時間周波数分析装置の分析
結果より、例えば工作機械の各種構成音であるワークバ
タ付き音、ボールネジまたはタイミングベルトの音等の
うち、どの構成音が前記工作機械全体の騒音に、大きく
影響しているかを知り、工作機械全体の騒音対策の参考
として活用することはできなかった。(Problems to be Solved by the Invention) The real-time frequency analysis device merely performs real-time frequency analysis of constituent sounds, and various constituent sounds constituting a synthesized sound are synthesized sounds (whole sounds). However, it did not output any information about what percentage contributed. Therefore, from the analysis results of the real-time frequency analyzer, for example, any of the constituent sounds of the machine tool, such as the sound with a work flutter, the sound of a ball screw or a timing belt, which greatly affects the noise of the entire machine tool. It was not possible to use it as a reference for noise reduction of the entire machine tool.
本発明の目的は、上記問題点を解決するために、合成
音における各種構成音の寄与度を自動的に分析して、騒
音に大きく影響する構成音が判別され、騒音対策等に活
用し得る構成音寄与度自動出力装置を提供することにあ
る。An object of the present invention is to solve the above-described problems, automatically analyze the contribution of various constituent sounds to a synthesized sound, determine constituent sounds that greatly affect noise, and utilize the sounds for noise control and the like. An object of the present invention is to provide a component sound contribution degree automatic output device.
［発明の構成］ （課題を解決するための手段） 上記目的を達成するために、本発明は、各種の構成音
からなる合成音を測定する騒音計と、この騒音計の出力
を前記構成音別に実時間周波数分析を行う1/Nオクター
ブ実時間周波数分析装置と、前記実時間周波数から前記
構成音が前記合成音に何％寄与しているかの寄与度を分
析する寄与度分析装置と、この寄与度分析装置の情報を
出力するプロッタとを備えたことを特徴とする構成音寄
与度自動出力装置である。[Constitution of the Invention] (Means for Solving the Problems) In order to achieve the above object, the present invention provides a sound level meter for measuring a synthesized sound composed of various constituent sounds, and an output of the sound level meter for each of the constituent sounds. A 1 / N octave real-time frequency analyzer that performs real-time frequency analysis, and a contribution analyzer that analyzes the contribution of the constituent sound from the real-time frequency by what percentage. A constituent sound contribution automatic output device, comprising: a plotter for outputting information of the contribution analysis device.
（作用） 本発明の構成音寄与度自動出力装置を採用することに
より、各種の構成音からなる合成音を測定する騒音計を
設け、この騒音計の出力を前記構成音別に実時間周波数
分析を行う1/Nオクターブ実時間周波数分析装置を設
け、前記実時間周波数から前記構成音が前記合成音に何
％寄与しているかの寄与度を分析する寄与度分析装置を
設け、この寄与度分析装置の情報を出力するプロッタを
設けることによって、合成音における各種構成音の寄与
度を自動的に分析して、騒音に大きく影響する構成音が
容易に判別され、騒音対策等に活用し得る。(Operation) By employing the constituent sound contribution automatic output device of the present invention, a sound level meter for measuring a synthesized sound composed of various constituent sounds is provided, and the output of the sound level meter is subjected to real-time frequency analysis for each of the constituent sounds. A 1 / N octave real-time frequency analysis device for performing the analysis, and a contribution analysis device for analyzing the contribution of the constituent sound to the synthesized sound based on the real-time frequency. Is provided, the degree of contribution of various constituent sounds to the synthesized sound is automatically analyzed, and the constituent sounds that greatly affect the noise can be easily determined, which can be used for noise countermeasures and the like.
（実施例） 以下、本発明の実施例を図面に基づいて詳細に説明す
る。Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
第１図は本発明における構成音寄与度自動出力装置の
一実施例のプロック図を示す。図において構成音寄与度
自動出力装置１は、騒音計３と、1/Nオクターブ実時間
周波数分析装置５と、寄与度分析装置７およびプロッタ
９とから構成されている。このうち、騒音計３は、例え
ば工作機械から発生する各種構成音からなる合成音を検
出するセンサである。また、1/Nオクターブ実時間周波
数分析装置５は、第２図に示すように各構成音を、各帯
域（バンド）における中心周波数0，1，3，…，
8の音レベル（dB）として、実時間周波数分析する装
置で、かつ各種の条件の元に複数回繰り換えし行うこと
もある。FIG. 1 is a block diagram showing an embodiment of an apparatus for automatically outputting constituent sound contribution according to the present invention. In the figure, the constituent sound contribution automatic output device 1 includes a sound level meter 3, a 1 / N octave real-time frequency analyzer 5, a contribution analyzer 7, and a plotter 9. Among them, the sound level meter 3 is a sensor that detects a synthetic sound composed of various constituent sounds generated from a machine tool, for example. The 1 / N octave real-time frequency analyzer 5 converts each constituent sound into center frequencies 0 , 1 , 3 ,..., In each band as shown in FIG.
The sound level (dB) of 8 is a device that performs real-time frequency analysis, and may be repeated several times under various conditions.
なお、寄与度分析装置７は、例えばパーソナルコンピ
ュータのソフトとして構成され、実時間周波数装置５に
おける各構成音の実時間周波数分析データを抽出して、
各構成音が全体音の内の何％を寄与しているかを演算処
理する装置である。The contribution analysis device 7 is configured as, for example, software of a personal computer, and extracts real-time frequency analysis data of each component sound in the real-time frequency device 5,
This is a device for calculating what percentage of the whole sound each constituent sound contributes.
さらに、プロッタ９は、寄与度分析装置７の情報デー
タを第３図に示すように、例えば棒グラフにてそれぞれ
寄与度の大きい順に、周波数3，6，1，5，
4，2を、寄与度％a1，a2，a3，a4，a5，a6％として
寄与度表示（ランキング表示）または第４図に示すよう
に円グラフにて同様に寄与度表示を行うものである。こ
の際、レベルの低い周波数0，7，8は寄与度０％
として、その表示が除外されている。Further, as shown in FIG. 3, the plotter 9 sorts the information data of the contribution analysis device 7 in the order of increasing contribution in a bar graph, for example, in order of frequency 3 , 6 , 1 , 5 , 5 ,.
4, 2, contribution% a 1, a 2, a 3, a 4, a 5, contribution appears as a 6% (Index Display) or similarly contributions in a pie chart as shown in FIG. 4 The display is performed. At this time, low-level frequencies 0 , 7 , and 8 have 0% contribution.
The display has been excluded.
このように、騒音計３にて測定される合成音は実時間
周波数分析装置５にて各構成音の実時間周波数に分析さ
れ、寄与度分析装置７にて実時間周波数は寄与度分析さ
れ、その分析結果はプロッタ９にて寄与度（％）表示さ
れ、各構成音の比率が一目して判別されるから、例えば
工作機械の各種構成音であるワークバタ付き音、ボール
ネジまたはタイミングベルトの音等のうち、どの構成音
が前記工作機械全体の騒音に、大きく影響しているかが
容易に判別され、工作機械全体の効率的な騒音対策が可
能である。As described above, the synthesized sound measured by the sound level meter 3 is analyzed by the real-time frequency analysis device 5 into the real-time frequency of each component sound, and the real-time frequency is analyzed by the contribution analysis device 7, The analysis result is displayed on the plotter 9 as a contribution (%), and the ratio of each component sound is determined at a glance. For example, various component sounds of a machine tool, such as a work fluttering sound, a sound of a ball screw or a timing belt, etc. Among them, it is easy to determine which component sound has a great influence on the noise of the whole machine tool, and it is possible to take effective noise countermeasures for the whole machine tool.
なお、本発明は、上記実施例に限定されるものではな
く、適宜の設計的変更を行うことにより、他の態様にお
いても実施し得るもので、例えば「音」を「振動」に置
換えることにより、合成振動における各構成振動の寄与
度を自動的に出力する装置としてもよい。It should be noted that the present invention is not limited to the above embodiment, but can be implemented in other aspects by making appropriate design changes, for example, replacing "sound" with "vibration". Thus, a device that automatically outputs the contribution of each component vibration in the synthetic vibration may be used.
［発明の効果］ 以上の説明ですでに明らかなように、本発明の構成音
寄与度自動出力装置は、各種の構成音からなる合成音を
測定する騒音計を設け、この騒音計の出力を前記構成音
別に実時間周波数分析を行う1/Nオクターブ実時間周波
数分析装置を設け、前記実時間周波数から前記構成音が
前記合成音に何％寄与しているかの寄与度を分析する寄
与度分析装置を設け、この寄与度分析装置の情報データ
を出力するプロッタを設けることによって、従来技術の
問題点が有効に解決され、合成音における各種構成音の
寄与度が自動的に分析されて、騒音に大きく影響する構
成音が判別され、効率的な騒音対策が可能である。[Effects of the Invention] As is clear from the above description, the constituent sound contribution automatic output device of the present invention is provided with a sound level meter for measuring a synthetic sound composed of various constituent sounds, and the output of the sound level meter is measured. A 1 / N octave real-time frequency analysis device for performing real-time frequency analysis for each of the constituent sounds is provided, and a contribution analysis for analyzing the contribution of the constituent sound to the synthesized sound from the real-time frequency. By providing a device and a plotter for outputting information data of the contribution analysis device, the problems of the prior art can be effectively solved, and the contribution of various constituent sounds in the synthesized sound can be automatically analyzed to reduce noise. The component sound that greatly affects the noise is determined, and efficient noise countermeasures can be taken.
第１図は本発明における構成音寄与度自動出力装置の一
実施例のブロック図、第２図は各構成音の実時間周波数
分析図、第３図は第２図による周波数の棒グラフによる
寄与度表示図、第４図は同じく円グラフによる寄与度表
示図である。 １…構成音寄与度自動出力装置 ３…騒音計 ５…1/Nオクターブ実時間周波数分析装置 ７…寄与度分析装置 ９…プロッタFIG. 1 is a block diagram of an embodiment of a constituent sound contribution automatic output device according to the present invention, FIG. 2 is a real-time frequency analysis diagram of each constituent sound, and FIG. FIG. 4 is a display diagram of the degree of contribution by a pie chart. DESCRIPTION OF SYMBOLS 1 ... Automatic component sound contribution output device 3 ... Sound level meter 5 ... 1 / N octave real-time frequency analyzer 7 ... Contribution analyzer 9 ... Plotter
Claims (1)
音計と、この騒音計の出力を前記構成音別に実時間周波
数分析を行う1/Nオクターブ実時間周波数分析装置と、
前記実時間周波数から前記構成音が前記合成音に何％寄
与しているかの寄与度を分析する寄与度分析装置と、こ
の寄与度分析装置の情報を出力するプロッタと、を備え
たことを特徴とする構成音寄与度自動出力装置。1. A sound level meter for measuring a synthesized sound composed of various constituent sounds, a 1 / N octave real-time frequency analyzing apparatus for performing a real-time frequency analysis of the output of the sound level meter for each of the constituent sounds,
A contribution analyzer for analyzing the contribution of the constituent sound from the real-time frequency to the synthesized sound; and a plotter for outputting information of the contribution analyzer. The constituent sound contribution automatic output device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11854090A JP2954978B2 (en) | 1990-05-10 | 1990-05-10 | Component sound automatic output device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11854090A JP2954978B2 (en) | 1990-05-10 | 1990-05-10 | Component sound automatic output device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0415524A JPH0415524A (en) | 1992-01-20 |
| JP2954978B2 true JP2954978B2 (en) | 1999-09-27 |
Family
ID=14739125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11854090A Expired - Fee Related JP2954978B2 (en) | 1990-05-10 | 1990-05-10 | Component sound automatic output device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2954978B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6324290B1 (en) | 1994-03-08 | 2001-11-27 | Bridgestone Corporation | Method and apparatus for diagnosing sound source and sound vibration source |
-
1990
- 1990-05-10 JP JP11854090A patent/JP2954978B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0415524A (en) | 1992-01-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |