JPH0619275Y2 - Automotive audio equipment - Google Patents
Automotive audio equipmentInfo
- Publication number
- JPH0619275Y2 JPH0619275Y2 JP1986039998U JP3999886U JPH0619275Y2 JP H0619275 Y2 JPH0619275 Y2 JP H0619275Y2 JP 1986039998 U JP1986039998 U JP 1986039998U JP 3999886 U JP3999886 U JP 3999886U JP H0619275 Y2 JPH0619275 Y2 JP H0619275Y2
- Authority
- JP
- Japan
- Prior art keywords
- speaker
- equalizer
- sound
- frequency
- 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.)
- Expired - Lifetime
Links
Landscapes
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
Description
【考案の詳細な説明】 ＜産業上の利用分野＞ 本考案は、車載用音響機器に係わり、特に車室内におけ
る音響特性の補正をフロント側とリア側で異なるグラフ
ィックイコライザを用いた車載用音響機器に関する。[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a vehicle-mounted audio device, and in particular, a vehicle-mounted audio device using a graphic equalizer for correcting acoustic characteristics in a vehicle compartment on the front side and the rear side. Regarding
＜従来の技術＞ 従来は、第２図で示すように音源となるカセットデッキ
１から音声信号が出て、グラフィックイコライザ２内に
おいて２の操作部の操作に従ってイコライジングされフ
ロント用アンプ４、リア用アンプ６で増幅されて、フロ
ントスピーカ５、リアスピーカ７でそれぞれ音声再生さ
れるが、車室内でフロント、リアの各スピーカを同時に
ならす場合に音響特性は、定在波の関係から、必ずピー
クやディップが生じる為に、グラフィックイコライザで
ピークが生じている周波数帯域はレベルをおさえて、デ
ィップの生じている帯域はレベルブーストして、フラッ
トな特性になるよう１つのグラフィックイコライザで、
フロント側とリア側を同時補正していた。<Prior Art> Conventionally, as shown in FIG. 2, an audio signal is output from a cassette deck 1 serving as a sound source, and is equalized in accordance with the operation of the operation unit 2 in the graphic equalizer 2, the front amplifier 4 and the rear amplifier. The sound is amplified by 6 and reproduced by the front speaker 5 and the rear speaker 7, respectively. However, when the front and rear speakers are leveled at the same time in the vehicle interior, the acoustic characteristics are always peak and dip due to the relationship of standing waves. The frequency band in which the peak occurs in the graphic equalizer suppresses the level, and the band in which the dip occurs boosts the level, resulting in a flat characteristic with one graphic equalizer.
The front and rear sides were corrected at the same time.
＜考案が解決しようとする問題点＞ しかしながら、このような従来のグラフィックイコライ
ザにあっては、例えば、フロント側にとうてい低音が望
めないような小型スピーカを、リア側には低音がかなり
出てくる大型スピーカを付け音を出した際に、必ず音響
特性にピーク、ディップが生ずる。その補正をする為、
グラフィックイコライザにおいて、低域は200〜300Hz、
高域は2K〜3KHzをそれぞれ調整するが、そのとき低域の
調整で、リアスピーカが補正できるが、同時に低域の出
ないフロントスピーカの低域ももち上げられボコボコと
歪感が出てしまい、高域の調整では、フロントとリアの
スピーカの補正はできるが実際は大口径のリアスピーカ
の音量にフロント側が負け、音場がリアに移ってしまう
と共にうるさくなってしまうという問題があった。<Problems to be solved by the invention> However, in such a conventional graphic equalizer, for example, a small speaker that does not have a desired bass sound on the front side and a bass sound on the rear side considerably appears. When making sound with a large speaker, peaks and dips occur in the acoustic characteristics. To make that correction,
In the graphic equalizer, the low range is 200-300Hz,
The high range is adjusted from 2K to 3KHz respectively, but at that time, the rear speaker can be corrected by adjusting the low range, but at the same time, the low range of the front speaker which does not have the low range is also lifted and the feeling of distortion appears. In the high range adjustment, the front and rear speakers can be corrected, but in reality the front side loses the volume of the large-diameter rear speaker, which causes a problem that the sound field shifts to the rear and becomes noisy.
本考案の目的は、グラフィックイコライザをフロントス
ピーカ用、リアスピーカ用に分け、本来あるべくフロン
トスピーカとリアスピーカの音響特性のバランスを考
え、自然に音場補正をすることにある。An object of the present invention is to divide the graphic equalizer into a front speaker and a rear speaker, and naturally consider the balance between the acoustic characteristics of the front speaker and the rear speaker to naturally correct the sound field.
＜問題点を解決するための手段＞ 本考案は、前記問題を解決する為に、各々複数の周波数
バンド毎に所定の音声帯域内の周波数特性を補正する第
１と第２のイコライザ部を有し、第１のイコライザ部を
介してフロントスピーカより、また第２のイコライザ部
を介してリアスピーカより音声信号を出力する車載用音
響機器であって、第１のイコライザ部により補正可能な
音声帯域を高域よりに、第２のイコライザ部により補正
可能な音声帯域を低域よりに互いに一部の高域と低域が
重ならないようにずらして設定したことにより達成され
る。<Means for Solving Problems> In order to solve the above problems, the present invention has first and second equalizer units for correcting frequency characteristics in a predetermined voice band for each of a plurality of frequency bands. A vehicle-mounted audio device that outputs an audio signal from the front speaker via the first equalizer section and from the rear speaker via the second equalizer section, and an audio band that can be corrected by the first equalizer section. Is set to be higher than the high frequency band, and the voice band that can be corrected by the second equalizer unit is set to be shifted from the low frequency band so that some high frequencies and low frequencies do not overlap each other.
＜作用＞ 上記技術的手段は次のように作用する。<Operation> The above technical means operates as follows.
フロントスピーカ側と、リアスピーカ側にそれぞれ音場
補正装置を設け、イコライザ部の周波数バンドの周波数
帯域幅を高域より、又は低域よりに細かく分けること
で、フロントスピーカとリアスピーカの周波数特性の違
いにうまく対応でき、それぞれフロントスピーカ側、リ
アスピーカ側の音響特性に生じるピーク，ディップを細
かく補正し、よりフラットな音響特性にすることができ
るようになる。A sound field correction device is provided on each of the front speaker side and the rear speaker side, and the frequency bandwidth of the frequency band of the equalizer section is divided into a higher frequency band and a lower frequency band, so that the frequency characteristics of the front speaker and the rear speaker can be improved. The difference can be handled well, and the peaks and dips that occur in the acoustic characteristics of the front speaker side and the rear speaker side can be finely corrected to make the acoustic characteristics flatter.
＜実施例＞ 以下図面を参照しつつ本考案の実施例を詳細に説明す
る。<Embodiment> An embodiment of the present invention will be described in detail below with reference to the drawings.
第１図は、本考案の一実施例を示す図である。図中１
は、音源となるカセット、8,10はグラフィックイコライ
ザ、9,11はその操作部、４はフロント用アンプ、６はリ
ア用アンプ、５はフロントスピーカ、７はリアスピーカ
を表わす。FIG. 1 is a diagram showing an embodiment of the present invention. 1 in the figure
Is a cassette that serves as a sound source, 8 and 10 are graphic equalizers, 9 and 11 are operating portions thereof, 4 is a front amplifier, 6 is a rear amplifier, 5 is a front speaker, and 7 is a rear speaker.
第１図において、音源となる１のカセットデッキより音
声信号が出され、8,10の各グラフィックイコライザを通
り、4,6の各アンプで増幅され5,7のフロント、リア各ス
ピーカから音として再生される。In Fig. 1, an audio signal is output from one cassette deck, which is a sound source, passes through each of the graphic equalizers of 8,10, is amplified by each of the amplifiers of 4,6, and is output as sound from the front and rear speakers of 5,7. Is played.
フロントスピーカ５には、通常10cm口径の小型フルレン
ジが使用され、その時点で低音は望めなくなり、その反
面、よりクリアーな中・高域を要求されることとなる。For the front speaker 5, a small full range with a diameter of 10 cm is normally used, and at that time, bass cannot be expected, but on the other hand, clearer middle and high frequencies are required.
リアスピーカ７には、通常16cm以上のフルレンジが使用
され、大口径の為に豊かで量感ある重低音が要求されて
いた。For the rear speaker 7, a full range of 16 cm or more is usually used, and due to its large diameter, a rich and rich deep bass is required.
８はフロントスピーカ側のグラフィックイコライザであ
り、その操作部となる９には、一案として、音声帯域内
の複数の周波数バンドを（400Hz,800Hz,1.25KHz,2KHz,
2.5KHz,3.2KHz,6.4KHz,12.5KHz,16KHz）とした操作キー
を設け、周波数特性の中・高域でピーク，ディップの一
番生じやすい2K〜3KHz近辺の帯域幅を狭くし、高域より
にずらすことで、本来フロントスピーカに求めている歪
感のない透明感あふれる中・高域を操作キーの調整で作
り出せることと共に、従来では調整が難しかった、15KH
z以上の周波数帯域に影響される打楽器の中で特に、シ
ンバル音の余韻も15KHz近辺に操作キーを設定してやる
ことで可能となる。8 is a graphic equalizer on the front speaker side, and as an idea, 9 is a plurality of frequency bands within the voice band (400Hz, 800Hz, 1.25KHz, 2KHz,
2.5KHz, 3.2KHz, 6.4KHz, 12.5KHz, 16KHz) operation keys are provided to narrow the bandwidth around 2K to 3KHz where peaks and dips are most likely to occur in the middle and high frequencies of the frequency characteristics, and By shifting further, it is possible to create the transparent middle and high range without distortion that is originally required for front speakers by adjusting the operation keys, and it was difficult to adjust in the past 15KH
Among the percussion instruments that are affected by the frequency band above z, the reverberation of the cymbal sound can be achieved by setting the operation key near 15 KHz.
10はリアスピーカ側のグラフィックイコライザであり、
その操作部となる11には、一案として、音声帯域内の複
数の周波数バンドを（63Hz,126Hz,160Hz,200Hz,250Hz,3
20Hz,500Hz,640Hz,1KHz）とした操作キーを設け、周波
数特性の低域でピーク，ディップが一番影響してくる20
0〜300Hz近辺の帯域幅を狭くし、本来リアスピーカに求
めている歪感のない量感あふれる重低音の再生を操作キ
ーの調整で作り出すことができる。10 is a graphic equalizer on the rear speaker side,
As an idea, the operation unit 11 has a plurality of frequency bands within the voice band (63 Hz, 126 Hz, 160 Hz, 200 Hz, 250 Hz, 3 Hz).
20Hz, 500Hz, 640Hz, 1KHz) operation keys are provided, and peaks and dips have the greatest effect in the low frequency range.
By narrowing the bandwidth around 0 to 300Hz, it is possible to create a heavy bass sound without distortion that is originally required for rear speakers by adjusting the operation keys.
左右のフロントスピーカ５と左右のリアスピーカ７の合
計４つのスピーカを同時に使用する際、フロントスピー
カ５は、フロントスピーカ側グラフィックイコライザ８
で、リアスピーカ７は、リアスピーカ側グラフィックイ
コライザ10で補正することで、フロント、リアスピーカ
の口径の差、周波数特性の違いによって、例えば従来大
音量の時、音場がリアスピーカ側に移ってしまうという
影響にも対応でき、聴取者自身の聴感で最も好ましい音
場補正ができる。When a total of four speakers, that is, the left and right front speakers 5 and the left and right rear speakers 7, are used at the same time, the front speaker 5 is the front speaker side graphic equalizer 8
Then, the rear speaker 7 is corrected by the rear speaker-side graphic equalizer 10 so that the sound field shifts to the rear speaker side due to the difference in the aperture of the front and rear speakers and the difference in frequency characteristics, for example, when the volume is conventionally large. It is possible to deal with the influence of being lost, and the most preferable sound field correction can be performed by the listener's own hearing feeling.
＜考案の効果＞ 以上説明した如く、本考案によればフロントスピーカ
側、リアスピーカ側に専用のグラフィックイコライザを
設けることで、車室内に配置されたフロントスピーカ、
リアスピーカの口径・周波数特性の違い、および取付位
置による音伝播特性に対応でき、本来フロントスピーカ
側、リアスピーカ側それぞれに求められている音、即
ち、フロントスピーカにはクリアーな中・高音、リアス
ピーカには豊かな重低音を得ることができ、かつ、聴取
者が自分の音に対する好みに応じて容易に音場補正がで
き、個性的な音場作りが行える。<Effects of the Invention> As described above, according to the present invention, by providing a dedicated graphic equalizer on the front speaker side and the rear speaker side, the front speaker arranged in the vehicle compartment,
It is possible to cope with the difference in aperture / frequency characteristics of the rear speaker and the sound propagation characteristic depending on the mounting position, and the sound that is originally required for the front speaker side and the rear speaker side, that is, clear middle / treble sound for the front speaker, rear A rich deep bass can be obtained in the speaker, and the listener can easily correct the sound field according to his or her own preference for the sound, thereby creating a unique sound field.
第１図は本考案の一実施例構成図、第２図は従来の一実
施例構成図を示す。 図中、１は音源となるカセットデッキ、４はフロント用
アンプ、６はリア用アンプ、５はフロントスピーカ、７
はリアスピーカ、８はフロントスピーカ側グラフィック
イコライザ、９は操作部、10はリアスピーカ側グラフィ
ックイコライザ、11は操作部を表わす。FIG. 1 is a block diagram of an embodiment of the present invention, and FIG. 2 is a block diagram of a conventional embodiment. In the figure, 1 is a cassette deck as a sound source, 4 is a front amplifier, 6 is a rear amplifier, 5 is a front speaker, 7
Is a rear speaker, 8 is a front speaker side graphic equalizer, 9 is an operating section, 10 is a rear speaker side graphic equalizer, and 11 is an operating section.
Claims (1)
域内の周波数特性を補正する第１と第２のイコライザ部
を有し、第１のイコライザ部を介してフロントスピーカ
より、また第２のイコライザ部を介してリアスピーカよ
り音声信号を出力する車載用音響機器であって、第１の
イコライザ部により補正可能な音声帯域を高域よりに、
第２のイコライザ部により補正可能な音声帯域を低域よ
りに互いに一部の高域と低域が重ならないようにずらし
て設定したことを特徴とする車載用音響機器。1. A first speaker and a second equalizer section for correcting frequency characteristics in a predetermined audio band for each of a plurality of frequency bands, and a front speaker and a second equalizer section through the first equalizer section. Is a vehicle-mounted audio device that outputs a sound signal from a rear speaker via the equalizer unit of the first equalizer unit, and the sound band that can be corrected by the first equalizer unit is
An in-vehicle audio device, wherein an audio band that can be corrected by the second equalizer unit is set so as to be offset from a low frequency so that a part of the high frequency and a low frequency do not overlap each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986039998U JPH0619275Y2 (en) | 1986-03-19 | 1986-03-19 | Automotive audio equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986039998U JPH0619275Y2 (en) | 1986-03-19 | 1986-03-19 | Automotive audio equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62152598U JPS62152598U (en) | 1987-09-28 |
| JPH0619275Y2 true JPH0619275Y2 (en) | 1994-05-18 |
Family
ID=30853691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986039998U Expired - Lifetime JPH0619275Y2 (en) | 1986-03-19 | 1986-03-19 | Automotive audio equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0619275Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009236171A (en) * | 2008-03-26 | 2009-10-15 | Jfe Steel Corp | Grease quantity monitoring device of grease tank of dry seal gas holder |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5646329B2 (en) * | 1974-02-07 | 1981-11-02 | ||
| JPS5718110A (en) * | 1980-07-09 | 1982-01-29 | Arupain Kk | Equalizer device |
| JPS599621B2 (en) * | 1980-04-21 | 1984-03-03 | 株式会社クボタ | Corrosion-resistant alloy for molten borax |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5646329U (en) * | 1979-09-19 | 1981-04-25 | ||
| JPS599621U (en) * | 1982-07-06 | 1984-01-21 | クラリオン株式会社 | automatic volume adjustment circuit |
-
1986
- 1986-03-19 JP JP1986039998U patent/JPH0619275Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5646329B2 (en) * | 1974-02-07 | 1981-11-02 | ||
| JPS599621B2 (en) * | 1980-04-21 | 1984-03-03 | 株式会社クボタ | Corrosion-resistant alloy for molten borax |
| JPS5718110A (en) * | 1980-07-09 | 1982-01-29 | Arupain Kk | Equalizer device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009236171A (en) * | 2008-03-26 | 2009-10-15 | Jfe Steel Corp | Grease quantity monitoring device of grease tank of dry seal gas holder |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62152598U (en) | 1987-09-28 |
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