公开(公告)号：US20090257335A1

公开(公告)日：2009-10-15

申请号：US12419563

申请日：2009-04-07

申请人： Yi-Chun LIN ,  Wen-Haw WANG ,  Kai-Hsiang CHOU

发明人： Yi-Chun LIN ,  Wen-Haw WANG ,  Kai-Hsiang CHOU

IPC分类号： G11B27/00

CPC分类号： G11B27/034 ,  G10L21/04 ,  G11B27/105

摘要： An audio signal processing method includes the steps of: dividing an audio signal data stream into a plurality of selection segments; determining a target segment in the audio signal data stream, the target segment including a splice point for splicing a splice segment thereto; selecting one of the selection segments as the splice segment according to at least one parameter of the target segment; and processing the target segment and the splice segment to splice the splice segment to the target segment, and outputting a processed segment.

摘要翻译： 音频信号处理方法包括以下步骤：将音频信号数据流划分成多个选择段; 确定所述音频信号数据流中的目标片段，所述目标片段包括用于将拼接片段拼接的拼​​接点; 根据所述目标段的至少一个参数选择所述选择段中的一个作为所述拼接段; 以及处理所述目标段和所述拼接段以将所述拼接段拼接到所述目标区段，并输出处理的区段。

公开(公告)号：US20090037166A1

公开(公告)日：2009-02-05

申请号：US12183031

申请日：2008-07-30

申请人： Wen-Haw Wang

发明人： Wen-Haw Wang

IPC分类号： G10L19/00 ,  G10L19/02 ,  G10L21/00

CPC分类号： G10L19/035

摘要： An audio encoding method previously estimates better initial iterative values of global-gain and scalefactor for avoiding heavy calculation. The estimating process of the encoding method includes calculating the bit allocation of one frequency sample based on a sampling rate, a bit rate, and the number of audio channels according to an input frame, and the psychoacoustic model, searching one frequency sample having the greatest sample energy in each of a plurality of scalefactor bands, quantizing the frequency sample to comply with the bit allocation and to generate a corresponding scalefactor, searching a maximum scalefactor of all scalefactor bands corresponding to the input frame, and setting initial values of scalefactors and an initial value of global-gain for the quantization iterative loop process according to the corresponding scalefactor and the maximum scalefactor.

摘要翻译： 音频编码方法先前估计全局增益和比例因子的更好的初始迭代值，以避免重的计算。 编码方法的估计处理包括：根据输入帧，根据输入帧，根据采样率，比特率，音频信道数，计算一个频率样本的比特分配;以及心理声学模型，搜索具有最大值的一个频率样本 在多个比例因子频带中的每一个中采样能量，量化频率样本以符合比特分配并产生相应的比例因子，搜索对应于输入帧的所有比例因子频带的最大比例因子，以及设置比例因子的初始值，以及 根据相应的比例因子和最大比例因子，量化迭代循环过程的全局增益初始值。

公开(公告)号：US09214190B2

公开(公告)日：2015-12-15

申请号：US12419563

申请日：2009-04-07

申请人： Yi-Chun Lin ,  Wen-Haw Wang ,  Kai-Hsiang Chou

发明人： Yi-Chun Lin ,  Wen-Haw Wang ,  Kai-Hsiang Chou

IPC分类号： G06F17/00 ,  G11B27/034 ,  G10L21/04 ,  G11B27/10

CPC分类号： G11B27/034 ,  G10L21/04 ,  G11B27/105

摘要： An audio signal processing method includes the steps of: dividing an audio signal data stream into a plurality of selection segments; determining a target segment in the audio signal data stream, the target segment including a splice point for splicing a splice segment thereto; selecting one of the selection segments as the splice segment according to at least one parameter of the target segment; and processing the target segment and the splice segment to splice the splice segment to the target segment, and outputting a processed segment.

摘要翻译： 音频信号处理方法包括以下步骤：将音频信号数据流划分成多个选择段; 确定所述音频信号数据流中的目标片段，所述目标片段包括用于将拼接片段拼接的拼​​接点; 根据所述目标段的至少一个参数选择所述选择段中的一个作为所述拼接段; 以及处理所述目标段和所述拼接段以将所述拼接段拼接到所述目标区段，并输出处理的区段。

公开(公告)号：US08363854B2

公开(公告)日：2013-01-29

申请号：US12253751

申请日：2008-10-17

申请人： Kai-Hsiang Chou ,  Wen-Haw Wang ,  Yu-Heng Chen ,  Mei-Yu Fan

发明人： Kai-Hsiang Chou ,  Wen-Haw Wang ,  Yu-Heng Chen ,  Mei-Yu Fan

IPC分类号： H03G3/00

CPC分类号： H03G5/005 ,  H04R25/70

摘要： A device and method are provided for automatically adjusting gain, including a conversion module for converting an audio time-domain signal to an audio frequency-domain signal, an analysis module for analyzing the audio frequency-domain signal in accordance with an equal-loudness level contour of human hearing so as to generate strength weightings and generating a signal strength in accordance with the weightings, a calculation module for calculating a gain by analysis of the audio frequency-domain signal when the signal strength falls outside a default range, and a control module for generating an audio output signal in accordance with the gain and the audio time-domain signal.

摘要翻译： 提供了一种用于自动调整增益的装置和方法，包括用于将音频时域信号转换成音频频域信号的转换模块，用于根据等声级别分析音频频域信号的分析模块 人体听觉的轮廓，以产生强度加权并根据权重产生信号强度;计算模块，用于当信号强度落在默认范围之外时通过分析音频频域信号来计算增益;以及控制 模块，用于根据增益和音频时域信号产生音频输出信号。

公开(公告)号：US08255232B2

公开(公告)日：2012-08-28

申请号：US12183031

申请日：2008-07-30

申请人： Wen-Haw Wang

发明人： Wen-Haw Wang

IPC分类号： G10L19/00 ,  G10L19/02 ,  G10L21/00 ,  G10L19/04

CPC分类号： G10L19/035

摘要： An audio encoding method previously estimates better initial iterative values of global-gain and scalefactor for avoiding heavy calculation. The estimating process of the encoding method includes calculating the bit allocation of one frequency sample based on a sampling rate, a bit rate, and the number of audio channels according to an input frame, and the psychoacoustic model, searching one frequency sample having the greatest sample energy in each of a plurality of scalefactor bands, quantizing the frequency sample to comply with the bit allocation and to generate a corresponding scalefactor, searching a maximum scalefactor of all scalefactor bands corresponding to the input frame, and setting initial values of scalefactors and an initial value of global-gain for the quantization iterative loop process according to the corresponding scalefactor and the maximum scalefactor.

摘要翻译： 音频编码方法先前估计全局增益和比例因子的更好的初始迭代值，以避免重的计算。 编码方法的估计处理包括：根据输入帧，根据输入帧，根据采样率，比特率，音频信道数，计算一个频率样本的比特分配;以及心理声学模型，搜索具有最大值的一个频率样本 在多个比例因子频带中的每一个中采样能量，量化频率样本以符合比特分配并产生相应的比例因子，搜索对应于输入帧的所有比例因子频带的最大比例因子，以及设置比例因子的初始值，以及 根据相应的比例因子和最大比例因子，量化迭代循环过程的全局增益初始值。

公开(公告)号：US20090103752A1

公开(公告)日：2009-04-23

申请号：US12253751

申请日：2008-10-17

申请人： Kai-Hsiang Chou ,  Wen-Haw Wang ,  Yu-Heng Chen ,  Mei-Yu Fan

发明人： Kai-Hsiang Chou ,  Wen-Haw Wang ,  Yu-Heng Chen ,  Mei-Yu Fan

IPC分类号： H03G3/00

CPC分类号： H03G5/005 ,  H04R25/70

摘要： A device and method are provided for automatically adjusting gain, including a conversion module for converting an audio time-domain signal to an audio frequency-domain signal, an analysis module for analyzing the audio frequency-domain signal in accordance with an equal-loudness level contour of human hearing so as to generate strength weightings and generating a signal strength in accordance with the weightings, a calculation module for calculating a gain by analysis of the audio frequency-domain signal when the signal strength falls outside a default range, and a control module for generating an audio output signal in accordance with the gain and the audio time-domain signal.

摘要翻译： 提供了一种用于自动调整增益的装置和方法，包括用于将音频时域信号转换成音频频域信号的转换模块，用于根据等声级别分析音频频域信号的分析模块 人体听觉的轮廓，以产生强度加权并根据权重产生信号强度;计算模块，用于当信号强度落在默认范围之外时通过分析音频频域信号来计算增益;以及控制 模块，用于根据增益和音频时域信号产生音频输出信号。