JPS6438012U - - Google Patents
Info
- Publication number
- JPS6438012U JPS6438012U JP13060987U JP13060987U JPS6438012U JP S6438012 U JPS6438012 U JP S6438012U JP 13060987 U JP13060987 U JP 13060987U JP 13060987 U JP13060987 U JP 13060987U JP S6438012 U JPS6438012 U JP S6438012U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- signal
- rectifier
- audio
- frequency signal
- 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
- 230000003321 amplification Effects 0.000 claims description 4
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 4
- 230000005236 sound signal Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Control Of Amplification And Gain Control (AREA)
Description
第１図は本考案の一実施例を示す音響機器のブ
ロツク図、第２図は第１図の音声識別回路の詳細
を示すブロツク図である。
１……入力端子、２……音声識別回路、３……
可変増幅回路、４……増幅回路、５……スピーカ
ー、６……低域フイルタ、７……帯域フイルタ、
８……高域フイルタ、９，１０，１１……整流・
積分回路、１２……加算回路、１３……減算回路
、１４……出力端。
FIG. 1 is a block diagram of an audio device showing an embodiment of the present invention, and FIG. 2 is a block diagram showing details of the voice recognition circuit of FIG. 1. 1...Input terminal, 2...Audio identification circuit, 3...
Variable amplification circuit, 4...Amplification circuit, 5...Speaker, 6...Low pass filter, 7...Band filter,
8...High-pass filter, 9, 10, 11... Rectification/
Integrating circuit, 12... Adding circuit, 13... Subtracting circuit, 14... Output terminal.
Claims (1)
信号か音楽信号かを識別する音声識別回路と、前
記音声識別回路の出力によつて前記信号の増幅度
を自動的に制御する可変増幅回路とを含むことを
特徴とする音量調整回路。 (2) 音声識別回路が入力信号の低域信号を抽出
する低域フイルタと、前記低域フイルタの出力端
に接続された第１の整流・積分回路と、前記入力
信号の中域信号を抽出する帯域フイルタと、前記
帯域フイルタの出力端に接続する第２の整流・積
分回路と、前記入力信号の高域信号を抽出する高
域フイルタと、前記高域フイルタの出力端に接続
する第３の整流・積分回路と、前記第１及び第３
の整流・積分回路の出力の和を演算する加算回路
と、前記加算回路及び前記第２の整流・積分回路
の出力の差を演算する減算回路からなる実用新案
登録請求の範囲第１項記載の音量調整回路。[Claims for Utility Model Registration] (1) A sound identification circuit that inputs an audio frequency signal and identifies whether the signal is an audio signal or a music signal; and an output of the audio identification circuit that determines the degree of amplification of the signal. A volume adjustment circuit comprising: a variable amplification circuit that automatically controls the volume; (2) The audio identification circuit includes a low-pass filter for extracting a low-frequency signal of the input signal, a first rectifier/integrator circuit connected to the output end of the low-pass filter, and a mid-frequency signal of the input signal. a second rectifying/integrating circuit connected to the output end of the band filter; a high band filter extracting a high frequency signal of the input signal; and a third rectifying/integrating circuit connected to the output end of the high band filter. a rectifier/integrator circuit, and the first and third
A utility model registered as claimed in claim 1, comprising an adder circuit that calculates the sum of the outputs of the rectifier/integrator circuit, and a subtracter circuit that calculates the difference between the outputs of the adder circuit and the second rectifier/integrator circuit. Volume adjustment circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13060987U JPS6438012U (en) | 1987-08-26 | 1987-08-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13060987U JPS6438012U (en) | 1987-08-26 | 1987-08-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6438012U true JPS6438012U (en) | 1989-03-07 |
Family
ID=31385933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13060987U Pending JPS6438012U (en) | 1987-08-26 | 1987-08-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6438012U (en) |
-
1987
- 1987-08-26 JP JP13060987U patent/JPS6438012U/ja active Pending
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