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公开(公告)号：US09407992B2
公开(公告)日：2016-08-02
申请号：US14105765
申请日：2013-12-13
Applicant: Conexant Systems, Inc.
Inventor： Chris X. Gao , Govind Kannan , Youhong Lu , Trausti Thormundsson , Vilhjalmur S. Thorvaldsson
CPC classification number: H04R3/02
Abstract: A method for continuously estimating reverberation decay comprising receiving a sequence of audio data samples. Determining whether a plateau is present in the sequence of audio data samples. Generating one or more reverberation parameters from the sequence of audio data samples if it is determined that the plateau is present.
Abstract translation: 一种用于连续估计混响衰减的方法，包括接收音频数据样本序列。 确定音频数据样本序列中是否存在平台。 如果确定高原存在，则从音频数据样本序列生成一个或多个混响参数。
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公开(公告)号：US20150372650A1
公开(公告)日：2015-12-24
申请号：US14842775
申请日：2015-09-01
Applicant: CONEXANT SYSTEMS, INC.
Inventor： Trausti Thormundsson , Ragnar H. Jonsson , Vilhjalmur S. Thorvaldsson , James Walter Wihardja
CPC classification number: H03F1/3247 , G10K11/16 , H03F1/26 , H03F3/187 , H03F2200/372 , H03F2200/411 , H03F2200/516 , H03F2200/78 , H03G3/3026 , H03G3/3089 , H03G5/005 , H03G5/165 , H03G5/18 , H03G7/002 , H03G7/08 , H03G11/008
Abstract: An audio driver equipped with a distortion compensation unit corrects for detected distortion and includes a digital to analog converter (DAC), an amplifier, and an output driver that drives a loudspeaker. Between the output driver and the loudspeaker, the audio driver can include a series resistor and a differential amplifier to measure the voltage across the resistor. A distortion detection unit can use the detected voltage to determine whether distortion, such as rub and buzz distortion is present. The distortion detection unit can comprise an analog to digital converter (ADC) to digitize the voltage data, an FFT to transform the voltage data into frequency information, a root-mean-square (RMS) module that measures the energy at each frequency, and an analysis module which looks for the distortion signature in the energy spectrum.
Abstract translation: 配备有失真补偿单元的音频驱动器校正检测到的失真，并包括驱动扬声器的数模转换器（DAC），放大器和输出驱动器。 在输出驱动器和扬声器之间，音频驱动器可以包括串联电阻器和差分放大器，以测量电阻器两端的电压。 失真检测单元可以使用检测到的电压来确定是否存在诸如摩擦和嗡嗡声失真的失真。 失真检测单元可以包括用于数字化电压数据的模数转换器（ADC），将电压数据转换成频率信息的FFT，测量每个频率处的能量的均方根（RMS）模块，以及 在能谱中寻找失真特征的分析模块。
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公开(公告)号：US20140169575A1
公开(公告)日：2014-06-19
申请号：US14105765
申请日：2013-12-13
Applicant: Conexant Systems, Inc.
Inventor： Chris X. Gao , Govind Kannan , Youhong Lu , Trausti Thormundsson , Vilhjalmur S. Thorvaldsson
IPC: H04R3/00
CPC classification number: H04R3/02
Abstract: A method for continuously estimating reverberation decay comprising receiving a sequence of audio data samples. Determining whether a plateau is present in the sequence of audio data samples. Generating one or more reverberation parameters from the sequence of audio data samples if it is determined that the plateau is present.
Abstract translation: 一种用于连续估计混响衰减的方法，包括接收音频数据样本序列。 确定音频数据样本序列中是否存在平台。 如果确定平台存在，则从音频数据样本序列生成一个或多个混响参数。
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