公开(公告)号：US20110035213A1

公开(公告)日：2011-02-10

申请号：US12664934

申请日：2008-06-20

申请人： Vladimir Malenovsky ,  Milan Jelinek ,  Tommmy Vaillancourt ,  Redwan Salami

发明人： Vladimir Malenovsky ,  Milan Jelinek ,  Tommmy Vaillancourt ,  Redwan Salami

IPC分类号： G10L11/06

CPC分类号： G10L25/78 ,  G10L19/22

摘要： A device and method for estimating a tonality of a sound signal comprise: calculating a current residual spectrum of the sound signal; detecting peaks in the current residual spectrum; calculating a correlation map between the current residual spectrum and a previous residual spectrum for each detected peak; and calculating a long-term correlation map based on the calculated correlation map, the long-term correlation map being indicative of a tonality in the sound signal.

摘要翻译： 用于估计声音信号的音调的装置和方法包括：计算声音信号的当前残余频谱; 检测当前残留谱中的峰; 计算每个检测到的峰值的当前残差谱和先前残差谱之间的相关图; 以及基于所计算的相关图计算长期相关图，所述长期相关图表示所述声音信号中的音调。

公开(公告)号：US20100241425A1

公开(公告)日：2010-09-23

申请号：US12446892

申请日：2007-10-24

申请人： Vaclav Eksler ,  Milan Jelinek ,  Redwan Salami

发明人： Vaclav Eksler ,  Milan Jelinek ,  Redwan Salami

IPC分类号： G10L19/04

CPC分类号： G10L19/08 ,  G10L19/12

摘要： There is provided a transition mode device and method for use in a predictive-type sound signal codec for producing a transition mode excitation replacing an adaptive codebook excitation in a transition frame and/or a frame following the transition in the sound signal, comprising an input for receiving a codebook index and a transition mode codebook for generating a set of codevectors independent from past excitation. The transition mode codebook is responsive to the index for generating, in the transition frame and/or frame following the transition, one of the codevectors of the set corresponding to the transition mode excitation. There is also provided an encoding device and method and a decoding device and method using the above described transition mode device and method.

摘要翻译： 提供了一种用于预测型声音信号编解码器中的过渡模式装置和方法，用于产生在过渡帧和/或声音信号中的转变之后的帧中替换自适应码本激励的转换模式激励，包括输入 用于接收码本索引和用于生成独立于过去激励的一组码矢量的转换模式码本。 转换模式码本响应于索引，用于在转换之后的转换帧和/或帧中生成对应于转换模式激励的集合的码矢量之一。 还提供了一种编码装置和方法以及使用上述转换模式装置和方法的解码装置和方法。

公开(公告)号：US20100174536A1

公开(公告)日：2010-07-08

申请号：US12620394

申请日：2009-11-17

申请人： Bruno Bessette ,  Redwan Salami ,  Roch Lefebvre

发明人： Bruno Bessette ,  Redwan Salami ,  Roch Lefebvre

IPC分类号： G10L11/04

CPC分类号： G10L19/26 ,  G10L2019/0011

摘要： A pitch search method and device for digitally encoding a wideband signal, in particular but not exclusively a speech signal, in view of transmitting, or storing, and synthesizing this wideband sound signal. The new method and device which achieve efficient modeling of the harmonic structure of the speech spectrum uses several forms of low pass filters applied to a pitch codevector, the one yielding higher prediction gain (i.e. the lowest pitch prediction error) is selected and the associated pitch codebook parameters are forwarded.

摘要翻译： 考虑到发送或存储和合成该宽带声音信号，用于对宽带信号进行数字编码的音调搜索方法和装置，特别地但不排他地是语音信号。 实现语音频谱谐波结构的有效建模的新方法和装置使用几种形式的应用于音调码矢量的低通滤波器，选择产生较高预测增益（即，最低音调预测误差）的一种形式，并且相关音调 码本参数被转发。

公开(公告)号：US07672837B2

公开(公告)日：2010-03-02

申请号：US11498771

申请日：2006-08-04

申请人： Bruno Bessette ,  Redwan Salami ,  Roch Lefebvre

发明人： Bruno Bessette ,  Redwan Salami ,  Roch Lefebvre

IPC分类号： G10L11/04 ,  G10L19/00

CPC分类号： G10L19/26 ,  G10L2019/0011

摘要： A pitch search method and device for digitally encoding a wideband signal, in particular but not exclusively a speech signal, in view of transmitting, or storing, and synthesizing this wideband sound signal. The new method and device which achieve efficient modeling of the harmonic structure of the speech spectrum uses several forms of low pass filters applied to a pitch codevector, the one yielding higher prediction gain (i.e. the lowest pitch prediction error) is selected and the associated pitch codebook parameters are forwarded.

摘要翻译： 考虑到发送或存储和合成该宽带声音信号，用于对宽带信号进行数字编码的音调搜索方法和装置，特别地但不排他地是语音信号。 实现语音频谱谐波结构的有效建模的新方法和装置使用几种形式的应用于音调码矢量的低通滤波器，选择产生较高预测增益（即，最低音调预测误差）的一种形式，并且相关音调 码本参数被转发。

公开(公告)号：US07191123B1

公开(公告)日：2007-03-13

申请号：US10129945

申请日：2000-11-17

申请人： Bruno Bessette ,  Redwan Salami ,  Roch Lefebvre

发明人： Bruno Bessette ,  Redwan Salami ,  Roch Lefebvre

IPC分类号： G10L19/14 ,  G10L21/02 ,  G10L11/06

CPC分类号： G10L19/083 ,  G10L2019/0012

摘要： The gain smoothing method and device modify the amplitude of an innovative codevector in relation to background noise present in a previously sampled wideband signal. The gain smoothing device comprises a gain smoothing calculator for calculating a smoothing gain in response to a factor representative of voicing in the sampled wideband signal, a factor representative of the stability of a set of linear prediction filter coefficients, and an innovative codebook gain. The gain smoothing device also comprises an amplifier for amplifying the innovative codevector with the smoothing gain to thereby produce a gain-smoothed innovative codevector. The function of the gain-smoothing device improves the perceived synthesized signal when background noise is present in the sampled wideband signal.

摘要翻译： 增益平滑方法和装置相对于存在于先前采样的宽带信号中的背景噪声来修改创新码矢量的幅度。 增益平滑装置包括：增益平滑计算器，用于响应于表示采样的宽带信号中的发声的因子，表示一组线性预测滤波器系数的稳定性的因子和创新的码本增益来计算平滑增益。 增益平滑装置还包括用于利用平滑增益放大创新码矢量的放大器，从而产生增益平滑的创新码矢量。 当采样宽带信号中存在背景噪声时，增益平滑装置的功能改善了感知到的合成信号。

公开(公告)号：US20060277036A1

公开(公告)日：2006-12-07

申请号：US11498771

申请日：2006-08-04

申请人： Bruno Bessette ,  Redwan Salami ,  Roch Lefebvre

发明人： Bruno Bessette ,  Redwan Salami ,  Roch Lefebvre

IPC分类号： G10L11/04

CPC分类号： G10L19/26 ,  G10L2019/0011

摘要： A pitch search method and device for digitally encoding a wideband signal, in particular but not exclusively a speech signal, in view of transmitting, or storing, and synthesizing this wideband sound signal. The new method and device which achieve efficient modeling of the harmonic structure of the speech spectrum uses several forms of low pass filters applied to a pitch codevector, the one yielding higher prediction gain (i.e. the lowest pitch prediction error) is selected and the associated pitch codebook parameters are forwarded.

摘要翻译： 考虑到发送或存储和合成该宽带声音信号，用于对宽带信号进行数字编码的音调搜索方法和装置，特别地但不排他地是语音信号。 实现语音频谱谐波结构的有效建模的新方法和装置使用几种形式的应用于音调码矢量的低通滤波器，选择产生较高预测增益（即，最低音调预测误差）的一种形式，并且相关音调 码本参数被转发。

公开(公告)号：US06795805B1

公开(公告)日：2004-09-21

申请号：US09830331

申请日：2001-07-23

申请人： Bruno Bessette ,  Redwan Salami ,  Roch Lefebvre

发明人： Bruno Bessette ,  Redwan Salami ,  Roch Lefebvre

IPC分类号： G10L1912

CPC分类号： G10L19/26 ,  G10L2019/0011

摘要： An alternative approach by which periodicity enhancement of an excitation signal is achieved through filtering an innovative codevector by an innovation filter to reduce low frequency content of the innovative codevector and enhance the periodicity at low frequencies more than high frequencies.

摘要翻译： 激励信号的周期性增强的另一种方法是通过用创新滤波器过滤创新码矢来实现，以减少创新码矢量的低频内容，并提高低频率下的周期性高于高频。