JP2001292490A - Frequency characteristic setting device in acoustic system - Google Patents

Frequency characteristic setting device in acoustic system

Info

Publication number
JP2001292490A
JP2001292490A JP2000103247A JP2000103247A JP2001292490A JP 2001292490 A JP2001292490 A JP 2001292490A JP 2000103247 A JP2000103247 A JP 2000103247A JP 2000103247 A JP2000103247 A JP 2000103247A JP 2001292490 A JP2001292490 A JP 2001292490A
Authority
JP
Japan
Prior art keywords
frequency
frequency characteristic
monitor screen
bands
band
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
Application number
JP2000103247A
Other languages
Japanese (ja)
Other versions
JP4074421B2 (en
Inventor
Yasushi Nozaki
保志 野崎
Michiyo Okawa
路代 大川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toa Corp
Original Assignee
Toa Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toa Corp filed Critical Toa Corp
Priority to JP2000103247A priority Critical patent/JP4074421B2/en
Publication of JP2001292490A publication Critical patent/JP2001292490A/en
Application granted granted Critical
Publication of JP4074421B2 publication Critical patent/JP4074421B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To provide an acoustic system where a speaker is individually placed to each of bands that its frequency characteristic can easily be set. SOLUTION: When an operator viewing a monitor screen moves a high frequency gain adjustment knob Cg(H) upward (from dotted lines to solid lines) as shown in Figure (A), the frequency characteristic is adjusted to increase a high frequency gain. Since a cross point frequency is changed, a cross point frequency adjustment knob Ccp (MH) is moved to the upper left and a cut-off frequency adjustment knob Ccut (H) is moved upward. Similarly as shown in Figures (B), (C), for example, the cut-off frequency adjustment knob Ccut (H) and a cross point frequency adjustment knob Ccp (LM) are operated, the related frequency characteristics are changed resulting in changing the display on the monitor screen. While monitoring the change in the frequency characteristic curve, the operator moves proper knobs as required to adjust the frequency characteristic of the entire system.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の技術分野】本発明は、複数のスピーカのクロス
オーバー・ポイント設定装置に関し、より詳細には、高
域用スピーカ、中域用スピーカ、及び低域用スピーカの
内の少なくとも2つのスピーカを備えた音響システムに
おいて、これらスピーカ相互の干渉を防止するように周
波数特性を設定するための周波数特性設定装置に関す
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crossover point setting device for a plurality of speakers, and more particularly, to at least two speakers among a high-range speaker, a middle-range speaker, and a low-range speaker. The present invention relates to a frequency characteristic setting device for setting a frequency characteristic so as to prevent interference between the speakers in a sound system provided with the speaker.

【0002】[0002]

【従来の技術】音響システムにおいては、高域用スピー
カ、中域用スピーカ、及び低域用スピーカを設置してい
る場合がある。このような音響システムにおいては、そ
れぞれのスピーカによる相互干渉を防止して高品質の音
声出力を得るために、各スピーカが担当する周波数帯域
以外の信号成分は、フィルタを用いて予め信号をカット
している。そして、帯域外の信号成分をカットするため
のフィルタの周波数特性の設定は、スピーカを実際に設
置した際に、熟練の技術者が音響システムからの実際の
音声出力を測定し、それに基づいて、それぞれのスピー
カの通過帯域が重複しないようにフィルタの周波数特性
を設定している。しかしながら、フィルタの周波数特性
を技術者によって経験的に設定する場合、音響システム
において再生される音声の品質は、該技術者の熟練度等
による能力に依存しているため、経験が少ない技術者が
フィルタの周波数特性を調整しようとしても、所望の音
声品質が得られないことが多い。また、所望の音声品質
が得られたとしても、フィルタの周波数特性の設定に多
大な時間を要してしまう。
2. Description of the Related Art In some audio systems, a high-range speaker, a middle-range speaker, and a low-range speaker are installed. In such an acoustic system, signal components other than the frequency band assigned to each speaker are cut in advance using a filter in order to prevent mutual interference between the speakers and obtain a high-quality sound output. ing. And the setting of the frequency characteristic of the filter for cutting out of the signal component outside the band, when the speaker is actually installed, a skilled technician measures the actual audio output from the audio system, based on it, The frequency characteristics of the filter are set so that the pass bands of the speakers do not overlap. However, when the frequency characteristics of the filter are empirically set by a technician, the quality of the sound reproduced in the audio system depends on the ability of the technician due to his / her skill level. In many cases, even if an attempt is made to adjust the frequency characteristics of the filter, desired audio quality cannot be obtained. Further, even if desired sound quality is obtained, it takes a lot of time to set the frequency characteristics of the filter.

【0003】また、低域、中域、及び高域それぞれ用の
スピーカを備えた音響システムにおいて、各スピーカに
供給される信号の周波数特性を、コンピュータのモニタ
画面上で適宜設定する方法も提案されている。この方法
においては、デジタル信号プロセッサ(DSP)により
所望の周波数特性をデジタル的に得られるようにしてお
り、その周波数特性を、図5の(A)〜(C)に示すよ
うに、低域、中域、及び高域のそれぞれの帯域毎の周波
数特性を示すグラフをモニタ画面上に表示し、該グラフ
上に配置されたゲイン調整用の操作子Cgを上下に移動
させるとともに、カットオフ周波数(−3dBの周波
数)設定用の操作子Ccutを左右に移動させることによ
り設定する。このようなDSPによる周波数特性の設定
は、操作子の移動により特性曲線を視覚的に変化させて
調整することができるため、各帯域の周波数特性の設定
を容易に行うことができる。
In an acoustic system having speakers for low, middle and high frequencies, a method has been proposed in which the frequency characteristic of a signal supplied to each speaker is appropriately set on a monitor screen of a computer. ing. In this method, a desired frequency characteristic is digitally obtained by a digital signal processor (DSP), and the frequency characteristic is changed to a low frequency band, as shown in FIGS. A graph showing the frequency characteristic of each band of the middle band and the high band is displayed on the monitor screen, and the gain adjustment operator Cg arranged on the graph is moved up and down, and the cutoff frequency ( The frequency is set by moving the control operator Ccut for setting to the left and right. Since the setting of the frequency characteristic by the DSP can be adjusted by visually changing the characteristic curve by moving the operation element, the setting of the frequency characteristic of each band can be easily performed.

【0004】しかしながら、従来例のDSPによるスピ
ーカへの信号の周波数特性を設定する方法においては、
図5に示したように、モニタ画面上に1つの帯域の周波
数特性しか表示することができず、帯域相互の周波数特
性を比較しながら設定できるものではない。したがっ
て、例えば、図5の(A)に示すような低域用の周波数
特性のグラフをモニタ画面上に読み出して、ゲイン及び
カットオフ周波数を操作子の移動により設定し、次い
で、図5の(B)及び(C)に示すような中域用及び高
域のグラフをモニタ画面上に順次読み出して、ゲイン及
びカットオフ周波数を同様にして設定する必要がある。
また、ある帯域の周波数特性を変更すると、他の帯域の
周波数特性にもその影響が現れるので、他の帯域の周波
数特性の設定をやり直す必要が生じることもある。
However, in the conventional method of setting the frequency characteristic of a signal to a speaker using a DSP,
As shown in FIG. 5, only the frequency characteristic of one band can be displayed on the monitor screen, and it cannot be set while comparing the frequency characteristics of the bands. Therefore, for example, a graph of the frequency characteristics for the low frequency band as shown in FIG. 5A is read out on the monitor screen, and the gain and the cutoff frequency are set by moving the operation element. It is necessary to sequentially read the graphs for the middle range and the high range as shown in B) and C) on the monitor screen, and set the gain and the cutoff frequency in the same manner.
Also, changing the frequency characteristic of a certain band affects the frequency characteristic of another band, so that it may be necessary to reset the frequency characteristic of another band.

【0005】このように、従来例のDSPによる周波数
特性設定方法においても、低域、中域、及び高域すべて
の周波数特性が所望のものとなるようにするために、モ
ニタ画面上に周波数特性のグラフを1つ読み出しては、
操作子を移動させて該周波数特性を調節し、そして、そ
の作業を試行錯誤により反復的に行う必要がある。した
がって、設定作業が煩雑であるとともに、設定完了まで
に比較的長時間を要してしまう。
As described above, even in the frequency characteristic setting method using the conventional DSP, the frequency characteristic is displayed on the monitor screen in order to make the frequency characteristics in all of the low, middle, and high ranges desired. Reading one graph of
It is necessary to adjust the frequency characteristic by moving the operation element, and to repeat the operation by trial and error. Therefore, the setting operation is complicated, and it takes a relatively long time to complete the setting.

【0006】本発明は、従来例のこのような問題点に鑑
みてなされたものであり、その目的は、スピーカを複数
の帯域用に個別に設置した音響システムにおいて、これ
らのスピーカに供給される信号の周波数特性を容易にか
つ短時間で設定することができるようにするための周波
数特性設定装置を提供することである。
[0006] The present invention has been made in view of such problems of the conventional example, and an object of the present invention is to provide a sound system in which speakers are individually installed for a plurality of bands, to be supplied to these speakers. An object of the present invention is to provide a frequency characteristic setting device for enabling a frequency characteristic of a signal to be easily and quickly set.

【0007】[0007]

【課題を解決するための手段】上記した本発明の目的を
達成するために、本発明に係る、複数の帯域に対応して
設けられた複数のスピーカを備えた音響システムにおけ
る周波数特性設定装置であって、モニタ画面上で操作子
を移動させることにより周波数特性を調整可能にした周
波数特性設定装置においては、(a)複数の帯域のそれ
ぞれの周波数特性のグラフを同一モニタ画面に、周波数
特性を変化させるための複数の操作子とともに表示する
手段と、(b)モニタ画面上である操作子が移動された
ときに、該移動によって生じるそれぞれの帯域の周波数
特性の変化をすべて演算する手段と、(c)演算された
周波数特性の変化に応じて、該モニタ画面上の対応する
周波数特性のグラフを変化させる手段とからなることを
特徴としている。上記した複数の周波数帯域は、高域、
中域、及び低域であり、モニタ画面上の操作子は、これ
ら3つの周波数帯域それぞれの周波数特性のグラフ上に
配置されたゲイン調整用及びカットオフ周波数調整用の
操作子、並びに、低域と中域とのクロスポイント及び中
域と高域とのクロスポイントを表すクロスポイント調整
用の操作子を含んでいることが好ましい。
According to the present invention, there is provided a frequency characteristic setting apparatus for an audio system having a plurality of speakers provided corresponding to a plurality of bands according to the present invention. In the frequency characteristic setting apparatus in which the frequency characteristic can be adjusted by moving the operator on the monitor screen, (a) a graph of each frequency characteristic of a plurality of bands is displayed on the same monitor screen, Means for displaying together with a plurality of operators for changing, and (b) means for calculating all changes in frequency characteristics of respective bands caused by the movement when the operator is moved on the monitor screen; (C) means for changing a graph of a corresponding frequency characteristic on the monitor screen according to a change in the calculated frequency characteristic. The plurality of frequency bands described above include a high band,
The controls on the monitor screen are a middle range and a low range, and the controls for gain adjustment and cutoff frequency adjustment arranged on the graph of the frequency characteristics of each of these three frequency bands, and the low range It is preferable to include a cross-point adjustment operator indicating a cross point between the mid-range and the mid-range and a cross-point between the mid-range and the high range.

【0008】[0008]

【発明の実施の態様】図1は、本発明に係る周波数特性
設定装置を備えた音響システムのブロック図を示してい
る。該図において、11、12、13は、音響入力ソー
スを構成するマイク、演奏機器、ノイズ発生器であり、
これら音響入力ソースからの音響信号は、プリアンプ2
を介してデジタル信号プロセッサ(DSP)30に供給
される。DSP30はデジタル的に信号を処理するもの
であり、入力された音響信号は、DSP30によって、
高域、中域、及び低域の3つの周波数帯に分けられかつ
調整され、パワーアンプ40H、40M、40Lを介し
て、高域用スピーカ(高域SP)50H、中域用スピー
カ(中域SP)50M、及び低域用スピーカ(低域S
P)50Lに供給され、これらスピーカから再生され
る。なお、高域、中域、及び低域はそれぞれ、サブスク
リプトH、M及びLで表すものとする。60は、DSP
30を制御するためのパーソナル・コンピュータ(P
C)であり、モニタ手段、メモリ手段、並びにキーボー
ド及びマウス等の入力手段を備えている。
FIG. 1 is a block diagram showing an acoustic system having a frequency characteristic setting device according to the present invention. In the figure, reference numerals 11, 12, and 13 denote a microphone, a playing device, and a noise generator which constitute an audio input source,
The sound signals from these sound input sources are supplied to the preamplifier 2
To a digital signal processor (DSP) 30 via The DSP 30 digitally processes the signal, and the input acoustic signal is processed by the DSP 30
High, mid, and is divided into three frequency bands of the low frequency and is adjusted, via the power amplifier 40 H, 40 M, 40 L , the high frequency speakers (high band SP) 50 H, a midrange Loudspeaker (middle range SP) 50 M and low-range speaker (low-range S
P) is supplied to 50 L and reproduced from these speakers. Note that the high band, the middle band, and the low band are represented by subscripts H, M, and L, respectively. 60 is a DSP
30 for controlling the personal computer (P
C), comprising a monitor means, a memory means, and input means such as a keyboard and a mouse.

【0009】DSP30は、図2に示した構成を備えて
おり、高域、中域、及び低域の3つのチャネルを備えて
いる。高域チャネルは、ハイパス・フィルタ(HPF)
31 H、利得調整器(GAIN)32H、位相調整器
(φ)33H、イコライザ(EQ)34H、及び遅延手段
(DELAY)35Hを有しており、中域及び低域チャ
ネルにおいても同様な回路要素を備えている。ただし、
中域及び低域チャネルにおいては、高域チャネルのHP
F31Hの代わりに、バンドパス・フィルタ(BPF)
31M及びローパス・フィルタ(LPF)31Lを用いて
いることは言うまでもない。
The DSP 30 has the configuration shown in FIG.
With three channels: high, mid and low
I have. The high band channel is a high pass filter (HPF)
31 H, Gain adjuster (GAIN) 32H, Phase adjuster
(Φ) 33H, Equalizer (EQ) 34H, And delay means
(DELAY) 35HAnd mid and low frequency channels
A similar circuit element is provided in the tunnel. However,
For the mid and low channels, the HP of the high channel
F31HInstead of a bandpass filter (BPF)
31MAnd low-pass filter (LPF) 31LUsing
Needless to say.

【0010】このような構成を有する音響システムにお
いて実行される、本発明に係る周波数特性設定手法につ
いて、図3及び図4を参照して説明する。周波数特性の
設定処理がスタートすると、高域、中域、及び低域の3
つのチャネルにおける現在設定されている周波数特性の
グラフをPC60のメモリ手段から読み出して、図3に
示すように、PC60のモニタ手段に同一画面表示す
る。これら周波数特性は、例えば、高域チャネルについ
て言えば、HPF31Hと利得調整器32Hとの組み合わ
せ周波数特性であって、これらに初期設定された又は現
時点で既に設定されている周波数特性であり、PC60
のメモリ手段に格納されている。中域及び低域の周波数
特性についても同様である。なお、図4のモニタ画面に
おいて、Cg及びCcutはそれぞれ、従来例に関連して説
明したように、ゲイン調整用操作子及びカットオフ周波
数調整用の操作子であり、また、Ccpは、2つの帯域の
周波数特性のグラフが交わる点であるクロスポイント周
波数を調整するためのクロスポイント周波数調整用操作
子である。
The frequency characteristic setting method according to the present invention, which is executed in the acoustic system having such a configuration, will be described with reference to FIGS. When the setting process of the frequency characteristics starts, the high frequency, the middle frequency, and the low frequency
The graph of the currently set frequency characteristic for one channel is read from the memory means of the PC 60, and is displayed on the same screen on the monitor means of the PC 60 as shown in FIG. These frequency characteristics are, for example, a combination of the HPF 31 H and the gain adjuster 32 H in the case of a high-frequency channel, and are frequency characteristics initially set or already set at the present time, PC60
Is stored in the memory means. The same applies to the frequency characteristics of the middle band and the low band. In the monitor screen of FIG. 4, Cg and Ccut are a gain adjustment operator and a cutoff frequency adjustment operator, respectively, as described in relation to the conventional example. This is a cross-point frequency adjusting operator for adjusting a cross-point frequency, which is a point at which the graphs of the frequency characteristics of the bands intersect.

【0011】次に、オペレータは、モニタ画面を見て、
グラフ上の操作子Cg、Ccut、及びCcpを上下及び左右
に適宜調節する。例えば、図4の(A)に示すように、
高域のゲイン調整用操作子Cg(H)を上方(点線から実
線)に移動させると、PC60は、それに応じて利得調
整器32H(図2)の利得が高くなるように調整する。
これにより、クロスポイント周波数が変化するので、P
C60は、モニタ画面上のクロスポイント周波数調整用
操作子Ccp(MH)を左上方に移動させる。そして、カット
オフ周波数調整用操作子Ccut(H)の位置が変化する
ので上方に移動させる。また、図4の(B)に示すよう
に、モニタ画面上でカットオフ周波数調整用操作子Ccu
t(H)を操作し、カットオフ周波数のスロープの傾きを変
化させる(点線から実線)と、PC60の制御により、
HPF31H(図2)の特性を変化させる。これによ
り、クロスポイント周波数が変化するので、PC60は
モニタ画面上のクロスポイント周波数調整用操作子Ccp
(MH)を右下方に移動させる。さらに、図4の(C)に示
すように、クロスポイント周波数調整用操作子Ccp(LM)
を右方に移動させると、PC60は、それに応じてBP
F31M、LPF31L(図2)の特性を変化させる。こ
れにより、低域及び中域のカットオフ周波数が変化する
ので、PC60は、モニタ画面上のカットオフ周波数調
整用操作子Ccut(L)とCcut(M1)を右方に移動させる。
オペレータは、このような特性曲線の変化を監視しつ
つ、必要に応じて更に適宜の操作子を移動させ、全体と
しての周波数特性を調整する。
Next, the operator looks at the monitor screen,
The operators Cg, Ccut, and Ccp on the graph are appropriately adjusted vertically and horizontally. For example, as shown in FIG.
When the high-frequency gain control Cg (H) is moved upward (from the dotted line to the solid line), the PC 60 adjusts the gain of the gain adjuster 32 H (FIG. 2) accordingly to increase.
As a result, the crosspoint frequency changes.
C60 moves the crosspoint frequency adjustment operator Ccp (MH) on the monitor screen to the upper left. Then, since the position of the cutoff frequency adjusting operator Ccut (H) changes, the operator is moved upward. Further, as shown in FIG. 4B, the operator Ccu for cutoff frequency adjustment is displayed on the monitor screen.
By operating t (H) to change the slope of the cutoff frequency slope (from the dotted line to the solid line), the PC 60 controls
HPF 31 H alter the characteristics of the (Figure 2). As a result, the crosspoint frequency changes, so that the PC 60 operates the crosspoint frequency adjustment operator Ccp on the monitor screen.
(MH) is moved to the lower right. Further, as shown in FIG. 4C, the crosspoint frequency adjusting operator Ccp (LM)
Is moved to the right, the PC 60 responds accordingly.
The characteristics of F31 M and LPF 31 L (FIG. 2) are changed. As a result, the cutoff frequencies of the low band and the middle band change, so that the PC 60 moves the cutoff frequency adjusting operators Ccut (L) and Ccut (M1) on the monitor screen to the right.
While monitoring such a change in the characteristic curve, the operator further moves an appropriate operation element as needed to adjust the overall frequency characteristic.

【0012】上記からも明らかなように、ある操作子を
調整すると、それによって他の操作子によって表される
周波数が影響を受けるものである。従来例においては、
このような影響の内、帯域相互の影響を同一モニタ画面
上で見ることができなかったので、それぞれの帯域の周
波数特性のグラフを切換表示しては調整し、それを反復
実行することにより、全体として所望の特性を得ていた
ので、周波数特性の調整及び設定が困難であった。これ
に対して、本発明においては、同一モニタ画面上で3つ
帯域の周波数特性を監視しつつ調整することができるの
で、全体の特性を極めて容易に所望のものに設定するこ
とができる。すなわち、複数の帯域それぞれに対応して
スピーカが設けられた音響システムスにおいては、本
来、全体の音響システムとして良好な特性が得られるこ
とが重要であるが、本発明によれば、全体の周波数特性
を同一画面で見ながら調整できるので、所望の特性を極
めて容易に設定することができる。また、極めて短時間
に設定することができる。
As is apparent from the above description, when a certain control is adjusted, the frequency represented by another control is affected by the adjustment. In the conventional example,
Among such effects, the mutual influence of the bands could not be seen on the same monitor screen, so by switching and displaying the graph of the frequency characteristics of each band and adjusting it, by repeatedly executing it, Since desired characteristics were obtained as a whole, it was difficult to adjust and set frequency characteristics. On the other hand, in the present invention, since the frequency characteristics of the three bands can be adjusted while monitoring them on the same monitor screen, the overall characteristics can be set very easily to desired ones. That is, in an acoustic system in which speakers are provided corresponding to each of a plurality of bands, it is originally important that good characteristics are obtained as the entire acoustic system. Since the characteristics can be adjusted while looking at the same screen, desired characteristics can be set very easily. In addition, it can be set in a very short time.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の周波数特性設定装置によって周波数特
性の設定が可能な音響システムのブロック図である。
FIG. 1 is a block diagram of an acoustic system in which a frequency characteristic can be set by a frequency characteristic setting device of the present invention.

【図2】図1に示された音響システムのデジタル信号プ
ロセッサ(DSP)の詳細な構成を示すブロック図であ
る。
FIG. 2 is a block diagram showing a detailed configuration of a digital signal processor (DSP) of the audio system shown in FIG.

【図3】本発明の周波数特性設定装置において、モニタ
画面上に表示される周波数特性のグラフを示した模式図
である。
FIG. 3 is a schematic diagram showing a graph of a frequency characteristic displayed on a monitor screen in the frequency characteristic setting device of the present invention.

【図4】本発明の周波数特性設定装置において、モニタ
画面上に表示される周波数特性のグラフであって、
(A)は高域用周波数特性のゲイン調整操作子を変化さ
せた場合、(B)は高域用及び中域用周波数特性のカッ
トオフ周波数調整操作子を変化させた場合、(C)は低
域用周波数特性のクロスポイント周波数操作子を変化さ
せた場合の、自身及び他の帯域の周波数特性に与える影
響を示すためのモニタ画面上の模式図である。
FIG. 4 is a graph of frequency characteristics displayed on a monitor screen in the frequency characteristic setting device of the present invention,
(A) is a case where the gain adjustment operator of the high-frequency characteristic is changed, (B) is a case where the cutoff frequency adjustment operator of the high-frequency and middle-frequency characteristics is changed, and (C) is FIG. 9 is a schematic diagram on a monitor screen for showing the effect on the frequency characteristics of itself and other bands when the cross-point frequency operator of the low-frequency characteristics is changed.

【図5】従来例の設定方法において、モニタ画面上に別
々に表示される周波数特性のグラフである。
FIG. 5 is a graph of frequency characteristics separately displayed on a monitor screen in a setting method of a conventional example.

───────────────────────────────────────────────────── フロントページの続き Fターム(参考) 5D020 AD02 CE03 CE06 5J030 AA01 AB03 AC00 AC01 AC02 AC09 AC16 AC17 AC18 AC20 AC21 AC22 AC28 5J100 AA09 BA10 BC06 DA06 EA02 GA03 GA11  ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5D020 AD02 CE03 CE06 5J030 AA01 AB03 AC00 AC01 AC02 AC09 AC16 AC17 AC18 AC20 AC21 AC22 AC28 5J100 AA09 BA10 BC06 DA06 EA02 GA03 GA11

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 複数の帯域に対応して設けられた複数の
スピーカを備えた音響システムにおける周波数特性設定
装置であって、モニタ画面上で操作子を移動させること
により周波数特性を調整可能にした周波数特性設定装置
において、 複数の帯域のそれぞれの周波数特性のグラフを同一モニ
タ画面に、周波数特性を変更するための複数の操作子と
ともに表示する手段と、 モニタ画面上である操作子が移動されたときに、該移動
によって生じるそれぞれの帯域の周波数特性の変化をす
べて演算する手段と、 演算された周波数特性の変化に応じて、該モニタ画面上
の対応する周波数特性のグラフを変化させる手段とから
なることを特徴とする周波数特性設定装置。
1. A frequency characteristic setting device in an audio system including a plurality of speakers provided corresponding to a plurality of bands, wherein a frequency characteristic can be adjusted by moving an operation element on a monitor screen. In the frequency characteristic setting device, means for displaying a graph of each frequency characteristic of a plurality of bands on the same monitor screen together with a plurality of operators for changing the frequency characteristic, and the operator on the monitor screen is moved Sometimes, the means for calculating all the changes in the frequency characteristics of the respective bands caused by the movement, and the means for changing the graph of the corresponding frequency characteristics on the monitor screen according to the calculated changes in the frequency characteristics. A frequency characteristic setting device, comprising:
【請求項2】 請求項1記載の周波数特性設定装置にお
いて、 複数の周波数帯域は、高域、中域、及び低域であり、 モニタ画面上の操作子は、これら3つの周波数帯域それ
ぞれの周波数特性のグラフ上に配置されたゲイン調整用
及びカットオフ周波数調整用の操作子、並びに、低域と
中域とのクロスポイント及び中域と高域とのクロスポイ
ントを表すクロスポイント周波数の調整用の操作子を含
んでいることを特徴とする周波数特性設定装置。
2. The frequency characteristic setting device according to claim 1, wherein the plurality of frequency bands are a high band, a middle band, and a low band, and an operator on a monitor screen operates the frequency of each of these three frequency bands. Operators for gain adjustment and cut-off frequency adjustment arranged on the characteristic graph, and for adjustment of the cross point frequency representing the cross point between the low band and the middle band and the cross point between the middle band and the high band A frequency characteristic setting device comprising:
JP2000103247A 2000-04-05 2000-04-05 Frequency characteristic setting device in acoustic system Expired - Fee Related JP4074421B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000103247A JP4074421B2 (en) 2000-04-05 2000-04-05 Frequency characteristic setting device in acoustic system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000103247A JP4074421B2 (en) 2000-04-05 2000-04-05 Frequency characteristic setting device in acoustic system

Publications (2)

Publication Number Publication Date
JP2001292490A true JP2001292490A (en) 2001-10-19
JP4074421B2 JP4074421B2 (en) 2008-04-09

Family

ID=18616995

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
JP (1) JP4074421B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011259378A (en) * 2010-06-11 2011-12-22 Yamada Co Ltd Transparent acoustic panel
WO2012017519A1 (en) * 2010-08-03 2012-02-09 パイオニア株式会社 Speaker system
CN109495642A (en) * 2018-10-26 2019-03-19 Oppo广东移动通信有限公司 Display control method and Related product

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011259378A (en) * 2010-06-11 2011-12-22 Yamada Co Ltd Transparent acoustic panel
WO2012017519A1 (en) * 2010-08-03 2012-02-09 パイオニア株式会社 Speaker system
CN109495642A (en) * 2018-10-26 2019-03-19 Oppo广东移动通信有限公司 Display control method and Related product

Also Published As

Publication number Publication date
JP4074421B2 (en) 2008-04-09

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