公开(公告)号：US08897468B2

公开(公告)日：2014-11-25

申请号：US13085437

申请日：2011-04-12

申请人： Hao Chen

发明人： Hao Chen

IPC分类号： H03F21/00 ,  H03G3/32 ,  H03G3/34

CPC分类号： H03G3/341 ,  H03F2200/03 ,  H03F2203/7215 ,  H03G3/32

摘要： A noise control circuit includes a filter, a rectifier and a switch. The filter receives audio signals and obtains a noise signal portion of the received audio signals. The rectifier converts the noise signal portion to a current signal. The switch controls output of the audio signals according to an intensity of the current signals.

摘要翻译： 噪声控制电路包括滤波器，整流器和开关。 滤波器接收音频信号并获得所接收的音频信号的噪声信号部分。 整流器将噪声信号部分转换为电流信号。 该开关根据当前信号的强度来控制音频信号的输出。

公开(公告)号：US20140321654A1

公开(公告)日：2014-10-30

申请号：US14327877

申请日：2014-07-10

申请人： Samsung Electronics Co., Ltd.

发明人： Hee Young KIM ,  Do Hwan CHOI

IPC分类号： H03G3/32 ,  H04R3/00

CPC分类号： H03G3/32 ,  H04R3/005 ,  H04R5/04 ,  H04R2410/05 ,  H04R2420/07 ,  H04R2430/01 ,  H04R2460/13

摘要： An apparatus and method are disclosed, which separates ambient noise from a voice signal in a Bluetooth headset with dual microphones, switches the connection path between the dual microphones and automatically controls output audio gain, based on the ambient noise. The method for outputting the voice signal includes receiving/comparing the first and second input signals from the first and second microphones, extracting the voice signal of substantially identical intensity from the first and second input signals, and transmitting the voice signal from the portable terminal communicating with the Bluetooth headset.

摘要翻译： 公开了一种装置和方法，其将具有双麦克风的蓝牙耳机中的环境噪声与语音信号分离，根据环境噪声切换双麦克风之间的连接路径并自动控制输出音频增益。 用于输出语音信号的方法包括从第一和第二麦克风接收/比较第一和第二输入信号，从第一和第二输入信号提取基本上相同的强度的语音信号，以及从便携式终端传送话音信号 与蓝牙耳机。

公开(公告)号：US20140270200A1

公开(公告)日：2014-09-18

申请号：US14210430

申请日：2014-03-13

申请人： John Usher ,  Steven W. Goldstein

发明人： John Usher ,  Steven W. Goldstein

IPC分类号： G10L21/0272 ,  H03G3/32 ,  H04R1/10

CPC分类号： H03G3/32 ,  G10L25/78 ,  H04R1/1016 ,  H04R1/1041 ,  H04R1/406 ,  H04R3/005 ,  H04R2201/107 ,  H04R2420/01 ,  H04R2420/07

摘要： A system and method for enhancing two-way conversation between a user wearing at least one communication system or earphone and a second individual in proximity to the user is provided. The method includes detecting a spoken voice of the user from sounds captured at an ambient sound microphone, automatically activating a voice timer and setting a voice activity threshold for the voice timer responsive to detecting spoken voice, and adjusting a mixing gain of an audio content signal delivered to the earphone or communication system by way of the internal speaker with an ambient sound pass-through during activation of the voice timer. Separate mixing gains can be adjusted independently in accordance with spoken voice activity and reproduced audio content characteristics. Other embodiments are disclosed.

摘要翻译： 提供了一种用于增强穿戴至少一个通信系统或耳机的用户与接近用户的第二个人之间的双向会话的系统和方法。 该方法包括：响应于检测到语音的声音，利用环境声音麦克风​​捕获的声音来检测用户的口语声音，自动激活语音定时器和设置语音定时器的语音活动阈值，以及调整音频内容信号的混合增益 通过内部扬声器在语音定时器启动期间通过环境声音传递传送到耳机或通信系统。 单独的混音增益可以根据口头语音活动和再现的音频内容特征独立调整。 公开了其他实施例。

公开(公告)号：US20080144843A1

公开(公告)日：2008-06-19

申请号：US11611108

申请日：2006-12-14

申请人： John M. Burgan ,  Jose E. Korneluk ,  Glenn R. Nelson ,  Marco Pulido

发明人： John M. Burgan ,  Jose E. Korneluk ,  Glenn R. Nelson ,  Marco Pulido

IPC分类号： H03G3/32

CPC分类号： H03G3/32 ,  H03G5/165

摘要： A method (200) for improving quality of output audio (126). The method can include detecting an output acoustic signal (128) and generating a receive audio signal (134) based, at least in part, on the detected output acoustic signal. A frequency domain representation (140) of the receive audio signal can be compared to a frequency domain representation (138) of a source audio signal (124) from which the output acoustic signal is generated. At least one distortion signal (142) in the receive audio signal can be identified, and the source audio signal can be selectively equalized to reduce an amplitude of the source audio signal at a frequency that correlates to the distortion signal.

摘要翻译： 一种用于提高输出音频质量的方法（200）。 该方法可以包括至少部分地基于所检测的输出声信号来检测输出声信号（128）并产生接收音频信号（134）。 接收音频信号的频域表示（140）可以与产生输出声信号的源音频信号（124）的频域表示（138）进行比较。 可以识别接收音频信号中的至少一个失真信号（142），并且可以选择性地均衡源音频信号以便以与失真信号相关的频率来减小源音频信号的幅度。

公开(公告)号：US06968063B2

公开(公告)日：2005-11-22

申请号：US10387180

申请日：2003-03-11

申请人： Scott Boyd

发明人： Scott Boyd

IPC分类号： H03G3/32 ,  H03G3/20

CPC分类号： H03G3/32

摘要： A casino gaming machine includes a speaker structured to produce a game audio output having a volume, an ambient noise level (ambient noise level) detector structured to detect an ambient noise level proximate the gaming machine, and an dynamic volume controller configured to regulate the volume of the game audio output in relation to a detected ambient noise level. The gaming machine can produce a plurality of game audio outputs, wherein the game audio output volumes can be differentially adjusted in relation to a detected ambient noise level. Differential volume adjustment can be on the basis of a parameter, such as sound output class.

摘要翻译： 赌场游戏机包括构造成产生具有音量的游戏音频输出的扬声器，被构造成检测靠近游戏机的环境噪声电平的环境噪声电平（环境噪声电平）检测器，以及配置成调节音量的动态音量控制器 相对于检测到的环境噪声水平的游戏音频输出。 游戏机可以产生多个游戏音频输出，其中可以相对于检测到的环境噪声电平差异地调整游戏音频输出音量。 差分音量调节可以基于一个参数，如声音输出等级。

公开(公告)号：US20050232439A1

公开(公告)日：2005-10-20

申请号：US11085608

申请日：2005-03-22

申请人： Kenichiro Enomoto ,  Takeo Tokunaga ,  Yasuo Oishi ,  Yuji Aihara

发明人： Kenichiro Enomoto ,  Takeo Tokunaga ,  Yasuo Oishi ,  Yuji Aihara

IPC分类号： B60R11/02 ,  B62J99/00 ,  H03G3/32 ,  H04B1/00 ,  H03G3/00

CPC分类号： H03G3/32

摘要： A set volume control device for an on-vehicle audio system includes: a volume control switch to which a vehicle occupant can arbitrarily give an operational input; and a controller for controlling a set volume changer based on a vehicle speed detected by a vehicle speed detector and the operational input to the volume control switch so that a set volume of an audio system becomes a low vehicle speed region set volume fixed independently of vehicle speed change in a low vehicle speed region; becomes a high vehicle speed region set volume fixed independently of the vehicle speed change in a high vehicle speed region; and changes according to the vehicle speed change along a predetermined medium vehicle speed region set volume change line connecting the low vehicle speed region set volume and the high vehicle speed region set volume in a medium vehicle speed region between the low vehicle speed region and the high vehicle speed region. The controller changes a setting of the low vehicle speed region set volume according to an operational input to the volume control switch within a first volume setting range set up in advance when the volume control switch is operated in the low vehicle speed region, and changes a setting of the high vehicle speed region set volume according to an operational input to the volume control switch within a millisecond volume setting range set up in advance when the volume control switch is operated in the high vehicle speed region. A lower limit of the millisecond volume setting range is set higher than an upper limit of the first volume setting range. Thus, it is possible to accurately control the volume of the audio system and improve feeling of volume change.

摘要翻译： 一种用于车载音频系统的设定音量控制装置包括：车辆乘客可以任意地给出操作输入的音量控制开关; 以及控制器，用于基于由车速检测器检测的车速和对音量控制开关的操作输入来控制设定音量改变器，使得音频系统的设定音量变为与车辆无关地固定的低车速区域设定音量 低车速区域的速度变化; 变成高速车速区域设定体积，独立于高车速区域的车速变化而固定; 并且根据在低车速区域和高速之间的中等车速区域中连接低车速区域设定体积和高车速区域设定体积的预定中速车速区域设定体积变化线的车速变化而变化 车速区域。 当在低车速区域中操作音量控制开关时，控制器在预先设定的第一音量设定范围内根据对音量控制开关的操作输入来改变低车速区域设定音量的设定， 当在高车速区域中操作音量控制开关时，在预先设置的毫秒音量设定范围内，根据对音量控制开关的操作输入设定高车速区域设定音量。 毫秒音量设定范围的下限被设定为高于第一音量设定范围的上限。 因此，可以精确地控制音频系统的音量并改善音量变化的感觉。

公开(公告)号：US20050213776A1

公开(公告)日：2005-09-29

申请号：US11074569

申请日：2005-03-08

申请人： Yoshikazu Honji ,  Tetsu Kobayashi ,  Takashi Kunii

发明人： Yoshikazu Honji ,  Tetsu Kobayashi ,  Takashi Kunii

IPC分类号： B60R11/02 ,  G10K11/178 ,  H03G3/24 ,  H03G3/32 ,  H03G5/00 ,  H03G5/16 ,  H04B1/00

CPC分类号： H03G3/32 ,  H03G5/165

摘要： Noises in an interior of an automobile are estimated based on sensed values of sensors that sense a speed (driving speed), an accelerator opening angle, and an engine speed respectively. This estimation is carried out by searching a noise estimation database. A masking characteristic of an audio signal is deduced based on the estimated noises. An equalizing characteristic to prevent a masking of the audio signal is decided based on the masking characteristic, and then the audio signal is equalized.

摘要翻译： 基于检测速度（行驶速度），加速器开度和发动机速度的传感器的感测值来估计汽车内部的噪音。 通过搜索噪声估计数据库来进行该估计。 基于估计的噪声推导出音频信号的掩蔽特性。 基于掩蔽特性决定防止音频信号的屏蔽的均衡特性，然后音频信号相等。

公开(公告)号：US20050195994A1

公开(公告)日：2005-09-08

申请号：US11070837

申请日：2005-03-02

申请人： Nozomu Saito ,  Toru Marumoto

发明人： Nozomu Saito ,  Toru Marumoto

IPC分类号： H04R3/00 ,  G10L21/02 ,  H03G3/32 ,  H03G9/00

CPC分类号： H03G3/32 ,  G10L21/0208 ,  G10L21/0264

摘要： In an apparatus for improving voice clarity by controlling a gain of a voice based on a sound pressure level of the voice and a sound pressure level of noise, it is determined whether a sound pressure level of a gain-controlled voice exceeds a maximum allowable level. If the sound pressure level exceeding the maximum allowable level is caused by audio sound, a sound pressure level of the audio sound is reduced. The sound pressure level of the audio sound is minimally reduced so that the sound pressure level of the voice becomes equal to or lower than the maximum allowable level.

摘要翻译： 在通过基于声音的声压级和噪声的声压级控制声音的增益来改善语音清晰度的装置中，确定增益控制语音的声压级是否超过最大允许电平 。 如果超过最大允许电平的声压级由音频声音引起，音频声音的声压级就会降低。 音频声音的声压级被最小化，使得声音的声压级别等于或低于最大允许电平。

公开(公告)号：US20050069154A1

公开(公告)日：2005-03-31

申请号：US10935309

申请日：2004-09-08

申请人： Hiroshi Yamazaki ,  Toru Hanada

发明人： Hiroshi Yamazaki ,  Toru Hanada

IPC分类号： G06F3/16 ,  G06F17/00 ,  G10H1/46 ,  H03G3/00 ,  H03G3/32

CPC分类号： H03G3/32 ,  G06F3/165

摘要： When power is turned on, a speaker volume control section obtains the volume of surrounding sound from a microphone and then determines the output volume of a speaker from the volume of surrounding sound. The speaker volume control section then displays the value of the output volume of the speaker thus determined on an LCD. After that, the speaker volume control section monitors whether or not an operation of changing the speaker volume is performed and, when such an operation is not performed for a predetermined period of time, presents the determined speaker volume to a sound controller. When an operation of changing the speaker volume is performed, the speaker volume control section presents a volume specified by the user to the sound controller.

摘要翻译： 当电源打开时，扬声器音量控制部分从麦克风获得周围声音的音量，然后根据周围声音的音量确定扬声器的输出音量。 扬声器音量控制部分然后在LCD上显示如此确定的扬声器的输出音量的值。 此后，扬声器音量控制部分监视是否执行改变扬声器音量的操作，并且当这样的操作在预定时间段内不执行时，将所确定的扬声器音量呈现给声音控制器。 当执行改变扬声器音量的操作时，扬声器音量控制部分将由用户指定的音量呈现给声音控制器。

公开(公告)号：US20050063552A1

公开(公告)日：2005-03-24

申请号：US10669290

申请日：2003-09-24

申请人： Timothy Shuttleworth ,  Richard Kreifeldt ,  C. Reed ,  Brian Ellison

发明人： Timothy Shuttleworth ,  Richard Kreifeldt ,  C. Reed ,  Brian Ellison

IPC分类号： H03G3/32 ,  H04R29/00 ,  H04S7/00 ,  H03G3/20 ,  H04B15/00

CPC分类号： H04S7/301 ,  H03G3/32 ,  H04R29/00 ,  H04R29/007

摘要： Systems and methods for ambient noise compensation are disclosed. One example of a system includes a variable amplifier, a source sound processor, an area sound processor, and an adjustment circuit. The variable amplifier adjusts an audio input signal to generate an audio output signal with an appropriate level so that the audio output signal is audible over noise in a listening area. The source sound processor and the area sound processor may split the audio output signal and a monitoring signal into frequency bands, and may compare these signals band-by band to find differences that represent time-varying noise in the monitoring signal. These differences may be modified to account for the acoustic response of the listening area and for constant-level background noise in the listening area. The adjustment circuit controls the variable amplifier in response to these differences.

摘要翻译： 公开了用于环境噪声补偿的系统和方法。 系统的一个示例包括可变放大器，源声音处理器，区域声音处理器和调整电路。 可变放大器调整音频输入信号以产生具有适当电平的音频输出信号，使得音频输出信号在收听区域中的噪声可听见。 源声音处理器和区域声音处理器可以将音频输出信号和监视信号分离成频带，并且可以逐个比较这些信号以发现监视信号中表示时变噪声的差异。 这些差异可以被修改以考虑收听区域的声响应和在收听区域中恒定电平的背景噪声。 调整电路响应于这些差异来控制可变放大器。