CN109548410A - 音频信号采集电路 - Google Patents

音频信号采集电路 Download PDF

Info

Publication number
CN109548410A
CN109548410A CN201680003162.8A CN201680003162A CN109548410A CN 109548410 A CN109548410 A CN 109548410A CN 201680003162 A CN201680003162 A CN 201680003162A CN 109548410 A CN109548410 A CN 109548410A
Authority
CN
China
Prior art keywords
circuit
processing chip
resistance
capacitor
connect
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
Application number
CN201680003162.8A
Other languages
English (en)
Inventor
李仁涛
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CN109548410A publication Critical patent/CN109548410A/zh
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2430/00—Signal processing covered by H04R, not provided for in its groups

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)

Abstract

本发明提供一种音频信号采集电路，包括第一处理芯片、第二处理芯片、第一滤波子电路以及第二滤波子电路，所述第二处理芯片的输入端与所述第一处理芯片以及所述第一滤波子电路连接，所述第二处理芯片的输出端与所述第二滤波子电路连接，所述第一处理芯片包括第一级运放比较器以及滤波器，所述第二处理芯片包括第二级运放比较器，所述第一处理芯片对声波模拟信号进行第一级放大以及滤波处理后，输入到所述第二级运放比较器。

Description

PCT国内申请，说明书已公开。

Claims (5)

  1. PCT国内申请，权利要求书已公开。
CN201680003162.8A 2016-05-12 2016-05-12 音频信号采集电路 Pending CN109548410A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2016/081915 WO2017193345A1 (zh) 2016-05-12 2016-05-12 音频信号采集电路

Publications (1)

Publication Number Publication Date
CN109548410A true CN109548410A (zh) 2019-03-29

Family

ID=60266870

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201680003162.8A Pending CN109548410A (zh) 2016-05-12 2016-05-12 音频信号采集电路

Country Status (2)

Country Link
CN (1) CN109548410A (zh)
WO (1) WO2017193345A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108989949B (zh) * 2018-10-09 2023-10-10 佛山市新东方电子技术工程有限公司 一种多通道互锁微音拾音装置
CN113820595A (zh) * 2021-06-28 2021-12-21 乐歌人体工学科技股份有限公司 一种敲击次数检测***及方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7649417B1 (en) * 2007-05-23 2010-01-19 National Semiconductor Corporation Apparatus and method for input stage and bias canceller for an audio operational amplifier
JP2010118975A (ja) * 2008-11-14 2010-05-27 Nec Corp 集音装置及びノイズ抑制方法
CN101958693A (zh) * 2009-07-13 2011-01-26 深圳富泰宏精密工业有限公司 音量调节装置及方法
JP6119203B2 (ja) * 2012-11-13 2017-04-26 ヤマハ株式会社 収音装置、収音方法およびプログラム
CN204206429U (zh) * 2014-08-22 2015-03-11 上海斐讯数据通信技术有限公司 音频信号处理***
CN204666566U (zh) * 2015-06-10 2015-09-23 衢州立诺电子科技有限公司 一种声音检测***
CN204836300U (zh) * 2015-06-24 2015-12-02 江苏米笛声学科技有限公司 一种手机麦克风超声波***

Also Published As

Publication number Publication date
WO2017193345A1 (zh) 2017-11-16

Similar Documents

Publication Publication Date Title
CN203537555U (zh) 音频装置
CN103634439A (zh) 降噪处理***
CN103379400A (zh) 耳机侦测电路及具有该耳机侦测电路的电子装置
CN103135686A (zh) 开机控制电路
CN103166587A (zh) 音频处理电路
CN109548410A (zh) 音频信号采集电路
CN107197069B (zh) 超声波发射器和接收器的检测装置
US10536135B2 (en) Pseudo resistor with tunable resistance
CN103634723B (zh) 音频输入电路及具有音频输入的电子设备
CN202750222U (zh) 音频输入电路及具有音频输入的电子设备
CN107205191A (zh) 一种通过耳机麦克风插孔扩展的内录装置和方法
CN105282653A (zh) 音频***自动唤醒装置以及音频***自动唤醒方法
CN109764951B (zh) 一种锚雷平台上振速矢量水听器的振动耦合噪声消除装置
CN108109631A (zh) 一种小体积双麦克风语音采集降噪模组及其降噪方法
CN107070426B (zh) 一种放大器及其实现方法
CN101964936B (zh) 用于数字麦克风的处理芯片及其输入电路、数字麦克风
CN212992396U (zh) 一种回声消除电路、装置及视频***
CN205453707U (zh) 一种抗电源干扰红外接收电路及红外接收器
CN101466059B (zh) 电容式麦克风
CN202693729U (zh) 新型寻线仪
CN107659326B (zh) 新型毫米波接收机输出信号动态扩展装置
CN105992098B (zh) 一种音频输入电路及电子终端
CN110011639A (zh) 具有高通滤波器的电路
CN218888671U (zh) 一种模拟硅麦
CA2706558C (en) System and method for receiving analog and digital input

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20190329