JPS6429987U - - Google Patents
Info
- Publication number
- JPS6429987U JPS6429987U JP12077387U JP12077387U JPS6429987U JP S6429987 U JPS6429987 U JP S6429987U JP 12077387 U JP12077387 U JP 12077387U JP 12077387 U JP12077387 U JP 12077387U JP S6429987 U JPS6429987 U JP S6429987U
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- frequency band
- level
- acoustic signal
- predetermined
- 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.)
- Pending
Links
- 230000035807 sensation Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案の一実施例である聴感補正回路
１に関連する構成を示すブロツク図、第２図は周
波数に依らず聴感レベルが一定となるような音圧
レベルの周波数特性を示すグラフ、第３図は一定
の音圧レベルの音響を人間が知覚するときの聴感
レベルの周波数特性を示すグラフ、第４図は第１
図に示されるＬＰＦ２の周波数特性を示すグラフ
、第５図は第１図に示されるＨＰＦ９の周波数特
性を示すグラフ、第６図は第１図に示されるレベ
ル圧縮器３の入出力レベルの関係を示すグラフ、
第７図は聴感補正回路１の周波数特性を示すグラ
フ、第８図は従来技術の聴感補正回路１１に関連
する構成を示す電気回路図、第９図は第８図に示
される聴感補正回路１１および可変抵抗器１６の
周波数特性を示すグラフである。
１…聴感補正回路、２…ＬＰＦ、３…レベル圧
縮器、４，１０…加算器、９…ＨＰＦ。
Fig. 1 is a block diagram showing the configuration related to the auditory sensation correction circuit 1 which is an embodiment of the present invention, and Fig. 2 is a graph showing the frequency characteristics of the sound pressure level such that the audibility level is constant regardless of the frequency. , Figure 3 is a graph showing the frequency characteristics of the auditory level when humans perceive sound with a constant sound pressure level, and Figure 4 is a graph showing the frequency characteristics of the auditory level when humans perceive sound with a constant sound pressure level.
5 is a graph showing the frequency characteristics of the HPF 9 shown in FIG. 1, and FIG. 6 is a graph showing the input/output level relationship of the level compressor 3 shown in FIG. 1. A graph showing,
FIG. 7 is a graph showing the frequency characteristics of the auditory sensation correction circuit 1, FIG. 8 is an electric circuit diagram showing a configuration related to the auditory sensation correction circuit 11 of the prior art, and FIG. 9 is the auditory sensation correction circuit 11 shown in FIG. and a graph showing the frequency characteristics of the variable resistor 16. 1... Hearing correction circuit, 2... LPF, 3... Level compressor, 4, 10... Adder, 9... HPF.
Claims (1)
える周波数帯域成分を波する高域波手段と、 前記音響信号から予め定める第２の周波数帯域
を下まわる周波数帯域成分を波する低域波手
段と、 前記高域波手段と低域波手段との出力のレ
ベルを減少するレベル減少手段と、 前記音響信号とレベル減少手段の出力信号とを
加算する加算手段とを含むことを特徴とする聴感
補正回路。[Claims for Utility Model Registration] High frequency means for generating frequency band components exceeding a predetermined first frequency band from an acoustic signal; and frequency band components below a predetermined second frequency band from the acoustic signal. a low-frequency wave means that waves, a level reduction means that reduces the level of the output of the high-frequency wave means and the low-frequency wave means, and an addition means that adds the acoustic signal and the output signal of the level reduction means. A hearing correction circuit characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12077387U JPS6429987U (en) | 1987-08-05 | 1987-08-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12077387U JPS6429987U (en) | 1987-08-05 | 1987-08-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6429987U true JPS6429987U (en) | 1989-02-22 |
Family
ID=31367182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12077387U Pending JPS6429987U (en) | 1987-08-05 | 1987-08-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6429987U (en) |
-
1987
- 1987-08-05 JP JP12077387U patent/JPS6429987U/ja active Pending
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