公开(公告)号：US20170316791A1

公开(公告)日：2017-11-02

申请号：US15603922

申请日：2017-05-24

申请人： Yobe, Inc

发明人： James Christopher Fairey ,  Kenneth Sutton

IPC分类号： G10L21/0364 ,  G10L21/0208 ,  G10L25/81 ,  H03G5/00

CPC分类号： G10L21/0364 ,  G06F21/32 ,  G10L17/02 ,  G10L21/0208 ,  G10L25/81 ,  H03G3/32 ,  H03G5/005 ,  H03G5/22 ,  H04R1/1008 ,  H04R1/1041 ,  H04R5/033

摘要： Systems and methods for isolating audio content and biometric authentication include receiving, with an audio receiver, an audio signal spanning a plurality of frequency bands, identifying a speech signal carried by a voice frequency band selected from the plurality of frequency bands, enhancing the speech signal relative to other audio content within the audio signal, and extracting a voice profile key that uniquely identifies the speech signal.

公开(公告)号：US20170047081A1

公开(公告)日：2017-02-16

申请号：US15243688

申请日：2016-08-22

申请人： Yobe, Inc.

发明人： James Christopher Fairey

IPC分类号： G10L21/0364 ,  G10L25/81 ,  G10L21/0208

CPC分类号： G10L21/0364 ,  G10L19/00 ,  G10L21/0208 ,  G10L25/81 ,  H03G5/005 ,  H03G5/22

摘要： Systems and methods described herein modify audio content on an electronic device. Embodiments can be configured to detect a mode of the electronic device to determine whether the device is in a telephone mode; receive a speech signal from a speech source while the device is in the telephone mode; and process the speech signal to improve the perceived quality of the speech at a recipient when the electronic device is in a telephone mode; wherein processing the speech signal to improve the perceived quality of the speech comprises, decreasing the signal level of audio content outside of a determined frequency band relative to the signal level of the audio content within the determined frequency band; and wherein the determined frequency band is a frequency band associated a vocal range of the anticipated speech content.

摘要翻译： 本文所述的系统和方法在电子设备上修改音频内容。 实施例可以被配置为检测电子设备的模式以确定设备是否处于电话模式; 在设备处于电话模式时从语音源接收语音信号; 并且当所述电子设备处于电话模式时处理所述语音信号以改善所述接收者的所述语音的感知质量; 其中处理所述语音信号以改善所述语音的感知质量包括：相对于所确定的频带内的所述音频内容的信号电平，降低所确定的频带之外的音频内容的信号电平; 并且其中所确定的频带是与预期语音内容的声音范围相关联的频带。

公开(公告)号：US07466830B2

公开(公告)日：2008-12-16

申请号：US10956793

申请日：2004-10-01

申请人： Takashige Miyashita

发明人： Takashige Miyashita

IPC分类号： H03G5/00

CPC分类号： H04R3/04 ,  H03G5/22

摘要： A low-frequency eliminating unit outputs a signal derived from attenuating the extreme bass range in an input audio signal, so as to reduce bass distortion. A high-frequency retrieving unit retrieves, from the signal output from the low-frequency eliminating unit, signal components at frequencies higher than the marginal frequency. A front low-pass filter and a back low-pass filter retrieve, from the signal output from the low-frequency eliminating unit, components other than the signal retrieved by the high-frequency retrieving unit. An amplifying unit amplifies a signal output from the low-frequency retrieving unit. A synthesizing unit synthesizes a signal output from the high-frequency retrieving unit and a signal output from the amplifying unit.

摘要翻译： 低频消除单元输出从输入音频信号中衰减极限低音范围得到的信号，以便降低低音失真。 高频检索单元从低频消除单元输出的信号中检索高于边际频率的信号分量。 前低通滤波器和后低通滤波器从低频消除单元输出的信号中检索除了由高频检索单元检索的信号以外的分量。 放大单元放大从低频检索单元输出的信号。 合成单元合成从高频检索单元输出的信号和从放大单元输出的信号。

公开(公告)号：US07130428B2

公开(公告)日：2006-10-31

申请号：US10025179

申请日：2001-12-19

申请人： Toru Hirai ,  Fukushi Kawakami ,  Yasushi Shimizu ,  Yoshikazu Honji ,  Masahiro Ikeda ,  Mikio Tohyama

发明人： Toru Hirai ,  Fukushi Kawakami ,  Yasushi Shimizu ,  Yoshikazu Honji ,  Masahiro Ikeda ,  Mikio Tohyama

IPC分类号： H04B3/20

CPC分类号： H04S1/002 ,  H03G3/32 ,  H03G5/22

摘要： Sound picked up by a microphone of a first sound field is reproduced by a speaker of a second sound field, and a sound picked up by a microphone of the second sound field is reproduced by the speaker of the first sound field. Sound pressure detection section detects a sound pressure of a sound present in the second (or first) sound field picked up by the microphone of the second (or first) sound field, other than a sound reproduced by the speaker of the first (or second) sound field. Other sound pressure detection section detects a sound pressure with which the sound picked up by the microphone of the second (or first) sound field and reproduced by the speaker of the first (or second) sound field is picked up by the microphone of the first (or second) sound field. Sound-pressure-difference detection section adjusts a gain of an automatic gain adjustment section in such a manner that the two detected sound pressures assume a predetermined relationship. Thus, any sound picked up in one of the first and second sound fields can be reproduced in the other sound field with an enhanced sense of unity and connection between the two sound fields.

摘要翻译： 由第一声场的麦克风拾取的声音由第二声场的扬声器再现，并且由第二声场的麦克风拾取的声音由第一声场的扬声器再现。 声压检测部检测由第二（或第一）声场的麦克风拾取的第二（或第一）声场中存在的声音的声压，而不是由第一（或第二）声音的扬声器再现的声音 ）声场。 其他声压检测部分检测由第一（或第一）声场的麦克风拾取的声音并由第一（或第二）声场的扬声器再现的声音由第一（或第二）声场的麦克风拾取的声压 （或第二）声场。 声压差检测部以这样的方式调节自动增益调整部的增益，使得两个检测到的声压呈现预定关系。 因此，在第一声场和第二声场之一中拾取的任何声音都可以在另一个声场中被再现，具有增强的两声场之间的一致性和连接感。

公开(公告)号：US07058183B2

公开(公告)日：2006-06-06

申请号：US10760364

申请日：2004-01-21

申请人： Shin Hasegawa ,  Akira Iwasaki ,  Kensaku Yoshida

发明人： Shin Hasegawa ,  Akira Iwasaki ,  Kensaku Yoshida

IPC分类号： H04B1/00

CPC分类号： H03G3/32 ,  H03G5/22

摘要： The object of this invention is to obtain the optimum music level by separately and independently performing the sound correction for the high-frequency range and low-frequency range according to the noise level. The invention comprises: a memory unit in which high-frequency-correction-level information, corresponding to the vehicle speed and music level, and low-frequency-correction-level information, corresponding to the low-frequency noise/music level ratio, are stored; a high-frequency-correction-level-information-acquisition unit that obtains high-frequency-correction-level information based on the vehicle speed and music level; and a low-frequency-correction-level-information-acquisition unit that obtains low-frequency-correction-level information based on the low-frequency noise/music level ratio; and it corrects the sound by a sound-quality-adjustment unit based on the high-frequency-correction-level information and low-frequency-correction-level information.

摘要翻译： 本发明的目的是通过根据噪声水平独立且独立地执行高频范围和低频范围的声音校正来获得最佳音乐水平。 本发明包括：对应于低频噪声/音乐电平比率的对应于车速和音乐电平的高频校正级信息和低频校正级信息的存储单元是 储存; 高频校正级别信息获取单元，其基于车速和音乐级别获得高频校正级信息; 以及低频校正级别信息获取单元，其基于所述低频噪声/音乐电平比获得低频校正级信息; 并且其基于高频校正级信息和低频校正级信息通过声音质量调整单元来校正声音。

公开(公告)号：US06993305B2

公开(公告)日：2006-01-31

申请号：US10433715

申请日：2001-11-14

申请人： Wolfdietrich Georg Kasperkovitz

发明人： Wolfdietrich Georg Kasperkovitz

IPC分类号： H04B1/06 ,  H04B7/00

CPC分类号： H03G5/22 ,  H03G3/3068 ,  H04B1/1661

摘要： An AM receiver includes an audio filter that is configured to selectively narrow the audio bandwidth of the demodulated signal when a signal with a low signal-to-noise ratio is received. By suitably bandpass-filtering the signal, for example, to 200–5000 Hertz, the intelligibility of the demodulated audio signal is not substantially reduced, whereas this bandpass-filtering substantially suppresses the audio noise that is typically found to be most annoying when listening to an full-bandwidth audio signal with a low signal-to-noise ratio. Optionally, the audio filter also provides gain to the bandpass-filtered signal.

摘要翻译： AM接收机包括音频滤波器，其被配置为当接收到具有低信噪比的信号时选择性地缩小解调信号的音频带宽。 通过对信号进行适当的带通滤波，例如为200-5000赫兹，解调的音频信号的清晰度基本上不会降低，而这种带通滤波基本上抑制了当听到时通常被认为是最讨厌的音频噪声 具有低信噪比的全带宽音频信号。 可选地，音频滤波器还为带通滤波信号提供增益。

公开(公告)号：US06975734B1

公开(公告)日：2005-12-13

申请号：US09471706

申请日：1999-12-23

申请人： Eiichi Suzuki

发明人： Eiichi Suzuki

IPC分类号： H04R3/04 ,  H03F1/34 ,  H03F3/20 ,  H03G5/16 ,  H03G5/22 ,  H04R3/00 ,  H03F21/00 ,  H03F1/40 ,  H03G11/00

CPC分类号： H03G5/22 ,  H04R3/00

摘要： An audio apparatus is constructed for use in negative drive of a loudspeaker having an internal impedance to perform a desired amplitude-frequency characteristic. In the audio apparatus, an amplifier device drives the loudspeaker with a driving voltage. A feedback device performs a positive feedback of a signal corresponding to the driving voltage of the loudspeaker to the amplifier device with a variable feedback gain, thereby causing the amplifier device to generate a negative impedance effective to negate the internal impedance of the loudspeaker. An adjustment device decreases the variable feedback gain of the feedback device as a level of the driving voltage of the loudspeaker increases, thereby adjusting the amplitude-frequency characteristic of the amplifier device.

摘要翻译： 音频装置被构造成用于具有内部阻抗的扬声器的负驱动以执行期望的幅频特性。 在音频装置中，放大器装置以驱动电压驱动扬声器。 反馈装置以可变的反馈增益对放大器装置执行对应于扬声器的驱动电压的信号的正反馈，从而使放大器装置产生有效的负阻抗以消除扬声器的内部阻抗。 当扬声器的驱动电压的电平增加时，调节装置减小反馈装置的可变反馈增益，从而调整放大器装置的幅频特性。

公开(公告)号：US20040151328A1

公开(公告)日：2004-08-05

申请号：US10760364

申请日：2004-01-21

申请人： PIONEER CORPORATION

发明人： Shin Hasegawa ,  Akira Iwasaki ,  Kensaku Yoshida

IPC分类号： H03G003/20 ,  H04B001/00

CPC分类号： H03G3/32 ,  H03G5/22

摘要： The object of this invention is to obtain the optimum music level by separately and independently performing the sound correction for the high-frequency range and low-frequency range according to the noise level. The invention comprises: a memory unit in which high-frequency-correction-level information, corresponding to the vehicle speed and music level, and low-frequency-correction-level information, corresponding to the low-frequency noise/music level ratio, are stored; a high-frequency-correction-level-information-acquisition unit that obtains high-frequency-correction-level information based on the vehicle speed and music level; and a low-frequency-correction-level-information-acquisition unit that obtains low-frequency-correction-level information based on the low-frequency noise/music level ratio; and it corrects the sound by a sound-quality-adjustment unit based on the high-frequency-correction-level information and low-frequency-correction-level information.

摘要翻译： 本发明的目的是通过根据噪声水平独立且独立地执行高频范围和低频范围的声音校正来获得最佳音乐水平。 本发明包括：对应于低频噪声/音乐电平比率的对应于车速和音乐电平的高频校正级信息和低频校正级信息的存储单元是 储存; 高频校正级别信息获取单元，其基于车速和音乐级别获得高频校正级信息; 以及低频校正级别信息获取单元，其基于所述低频噪声/音乐电平比获得低频校正级信息; 并且其基于高频校正级信息和低频校正级信息通过声音质量调整单元来校正声音。

公开(公告)号：US20040032959A1

公开(公告)日：2004-02-19

申请号：US10454988

申请日：2003-06-04

发明人： Christoph Montag ,  Joerg Sahrhage

IPC分类号： H03G005/00

CPC分类号： H03G5/005 ,  H03G5/22

摘要： A method of acoustically correct boosting of the bass level of a playback system for audio signals by adjusting at least one filter parameter of at least one bass-boosting filter unit which is provided for the playback system and is assigned in particular to at least one digital equalizer that is provided with the playback system so that excessive boosting of bass level is prevented is described. This involves adjusting at least one filter parameter of the bass-boosting filter unit so that the boost in the bass level is reduced with an increase in the cut-off frequency and/or with an increase in the mid-frequency of the bass-boosting filter unit such that the isophones in the remaining reproducible bass frequency range are not exceeded.

摘要翻译： 一种通过调整提供给重放系统的至少一个低音提升滤波器单元的至少一个滤波器参数来声音校正音频信号的重放系统的低音电平的方法，并且特别地分配给至少一个数字 描述了设置有播放系统的均衡器，从而防止了低音级的过度提升。 这涉及调节低音增强滤波器单元的至少一个滤波器参数，使得低音级别的升压随着截止频率的增加而减小，和/或随着低音增强中频的增加而减小 滤波器单元，使得不超过剩余可再现低音频率范围的声
音。

公开(公告)号：US20040017921A1

公开(公告)日：2004-01-29

申请号：US10206704

申请日：2002-07-26

发明人： Jose Ricardo Baddini Mantovani

IPC分类号： H03G011/00 ,  H04R029/00 ,  H04B015/00

CPC分类号： H03G5/22 ,  H04B1/10 ,  H04R3/00

摘要： An audio device, for example a wireless communications handset, including a sound transducer (410) coupled to a compensated audio signal output of an audio compensator (450), a mismatch detection circuit (430) having a first input coupled to the compensated audio signal output of the audio compensator (450), the mismatch detection circuit (430) having a second input coupled to the sound transducer (410), the mismatch detecting circuit having an output corresponding to a mismatch between a reference electrical impedance of the sound transducer and an actual electrical impedance of the sound transducer, a compensation estimator (440) having an input coupled to the output of the mismatch detection circuit, the compensation estimator having an audio compensation output coupled to a compensation input of the audio compensator.

摘要翻译： 音频设备，例如无线通信手机，包括耦合到音频补偿器（450）的经补偿的音频信号输出的声音换能器（410），失配检测电路（430），具有耦合到经补偿的音频信号的第一输入 音频补偿器（450）的输出，具有耦合到声音换能器（410）的第二输入的失配检测电路（430），失配检测电路具有对应于声音换能器的参考电阻抗和 声音传感器的实际电阻抗，具有耦合到失配检测电路的输出的输入的补偿估计器（440），所述补偿估计器具有耦合到所述音频补偿器的补偿输入的音频补偿输出。