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1. 发明授权

US08401845B2 System and method for enhancing a decoded tonal sound signal 有权
标题翻译：用于增强解码音调声音信号的系统和方法
公开(公告)号：US08401845B2
公开(公告)日：2013-03-19
申请号：US12918586
申请日：2009-03-05
申请人： Tommy Vaillancourt , Milan Jelinek , Vladimir Malenovsky , Redwan Salami
发明人： Tommy Vaillancourt , Milan Jelinek , Vladimir Malenovsky , Redwan Salami
IPC分类号： G10L21/02 , G10L19/14 , G10L19/00 , H04B15/00
CPC分类号： G10L19/26 , G10L25/18
摘要： A system and method for enhancing a tonal sound signal decoded by a decoder of a speech-specific codec in response to a received coded bit stream, in which a spectral analyser is responsive to the decoded tonal sound signal to produce spectral parameters representative of the decoded tonal sound signal. A quantization noise in low-energy spectral regions of the decoded tonal sound signal is reduced in response to the spectral parameters produced by the spectral analyser. The spectral analyser divides a spectrum resulting from spectral analysis into a set of critical frequency bands each comprising a number of frequency bins, and the reducer of quantization noise comprises a noise attenuator that scales the spectrum of the decoded tonal sound signal per critical frequency band, per frequency bin, or per both critical frequency band and frequency bin.
摘要翻译：一种用于响应于接收的编码比特流来增强由语音专用编解码器的解码器解码的音调声音信号的系统和方法，其中频谱分析仪响应于解码的音调声音信号以产生表示解码的频谱参数音调声信号。响应于由光谱分析仪产生的光谱参数，解码的音调声音信号的低能谱区域中的量化噪声被减小。光谱分析仪将从光谱分析得到的光谱分成一组包括多个频率仓的临界频带，并且量化噪声的减法器包括噪声衰减器，其对每个关键频带的解码音调声音信号的频谱进行缩放，每个频率仓，或每个临界频带和频率仓。

2. 发明授权

US08990073B2 Method and device for sound activity detection and sound signal classification 有权
标题翻译：声音检测和声音信号分类的方法和装置
公开(公告)号：US08990073B2
公开(公告)日：2015-03-24
申请号：US12664934
申请日：2008-06-20
申请人： Vladimir Malenovsky , Milan Jelinek , Tommy Vaillancourt , Redwan Salami
发明人： Vladimir Malenovsky , Milan Jelinek , Tommy Vaillancourt , Redwan Salami
IPC分类号： G10L21/00 , G10L25/78 , G10L25/00 , H04B15/00 , G10L19/22
CPC分类号： G10L25/78 , G10L19/22
摘要： A device and method for estimating a tonal stability of a sound signal include: 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 tonal stability in the sound signal.
摘要翻译：用于估计声音信号的音调稳定性的装置和方法包括：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来计算长期相关图，所述长期相关图表示所述声音信号中的音调稳定性。

3. 发明申请

US20110035213A1 Method and Device for Sound Activity Detection and Sound Signal Classification 有权
标题翻译：声音检测和声音信号分类方法和装置
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。

4. 发明授权

US08255207B2 Method and device for efficient frame erasure concealment in speech codecs 有权
标题翻译：语音编解码器中高效帧擦除隐藏的方法和设备
公开(公告)号：US08255207B2
公开(公告)日：2012-08-28
申请号：US12095224
申请日：2006-12-27
申请人： Tommy Vaillancourt , Milan Jelinek , Philippe Gournay , Redwan Salami
发明人： Tommy Vaillancourt , Milan Jelinek , Philippe Gournay , Redwan Salami
IPC分类号： G10L15/00
CPC分类号： G10L19/005
摘要： A method and device for concealing frame erasures caused by frames of an encoded sound signal erased during transmission from an encoder to a decoder and for recovery of the decoder after frame erasures comprise, in the encoder, determining concealment/recovery parameters including at least phase information related to frames of the encoded sound signal. The concealment/recovery parameters determined in the encoder are transmitted to the decoder and, in the decoder, frame erasure concealment is conducted in response to the received concealment/recovery parameters. The frame erasure concealment comprises resynchronizing, in response to the received phase information, the erasure-concealed frames with corresponding frames of the sound signal encoded at the encoder. When no concealment/recovery parameters are transmitted to the decoder, a phase information of each frame of the encoded sound signal that has been erased during transmission from the encoder to the decoder is estimated in the decoder. Also, frame erasure concealment is conducted in the decoder in response to the estimated phase information, wherein the frame erasure concealment comprises resynchronizing, in response to the estimated phase information, each erasure-concealed frame with a corresponding frame of the sound signal encoded at the encoder.
摘要翻译：一种用于隐藏在从编码器到解码器的传输期间被擦除的编码声音信号的帧引起的帧擦除和在帧擦除之后恢复解码器的方法和装置，在编码器中包括确定包括至少相位信息的隐藏/恢复参数与编码的声音信号的帧相关。在编码器中确定的隐藏/恢复参数被发送到解码器，并且在解码器中，响应于接收到的隐藏/恢复参数进行帧擦除隐藏。帧擦除隐藏包括响应于接收到的相位信息重新同步擦除隐藏的帧与在编码器处编码的声音信号的相应帧。当没有隐藏/恢复参数被发送到解码器时，在解码器中估计在从编码器到解码器的传输期间被擦除的编码声音信号的每帧的相位信息。此外，响应于估计的相位信息在解码器中进行帧擦除隐藏，其中帧擦除隐藏包括响应于估计的相位信息重新同步每个被擦除隐藏的帧与在该编码的声音信号的相应帧编码器。

5. 发明申请

US20110125505A1 Method and Device for Efficient Frame Erasure Concealment in Speech Codecs 有权
标题翻译：用于语音编解码器中高效帧擦除隐藏的方法和设备
公开(公告)号：US20110125505A1
公开(公告)日：2011-05-26
申请号：US12095224
申请日：2006-12-28
申请人： Tommy Vaillancourt , Milan Jelinek , Philleppe Gournay , Redwan Salami
发明人： Tommy Vaillancourt , Milan Jelinek , Philleppe Gournay , Redwan Salami
IPC分类号： G10L19/00
CPC分类号： G10L19/005
摘要： A method and device for concealing frame erasures caused by frames of an encoded sound signal erased during transmission from an encoder to a decoder and for recovery of the decoder after frame erasures comprise, in the encoder, determining concealment/recovery parameters including at least phase information related to frames of the encoded sound signal. The concealment/recovery parameters determined in the encoder are transmitted to the decoder and, in the decoder, frame erasure concealment is conducted in response to the received concealment/recovery parameters. The frame erasure concealment comprises resynchronizing, in response to the received phase information, the erasure-concealed frames with corresponding frames of the sound signal encoded at the encoder. When no concealment/recovery parameters are transmitted to the decoder, a phase information of each frame of the encoded sound signal that has been erased during transmission from the encoder to the decoder is estimated in the decoder. Also, frame erasure concealment is conducted in the decoder in response to the estimated phase information, wherein the frame erasure concealment comprises resynchronizing, in response to the estimated phase information, each erasure-concealed frame with a corresponding frame of the sound signal encoded at the encoder.
摘要翻译：一种用于隐藏在从编码器到解码器的传输期间被擦除的编码声音信号的帧引起的帧擦除并且在帧擦除之后恢复解码器的方法和装置在编码器中包括确定包括至少相位信息的隐藏/恢复参数与编码的声音信号的帧相关。在编码器中确定的隐藏/恢复参数被发送到解码器，并且在解码器中，响应于接收到的隐藏/恢复参数进行帧擦除隐藏。帧擦除隐藏包括响应于接收到的相位信息重新同步擦除隐藏的帧与在编码器处编码的声音信号的相应帧。当没有隐藏/恢复参数被发送到解码器时，在解码器中估计在从编码器到解码器的传输期间被擦除的编码声音信号的每帧的相位信息。此外，响应于估计的相位信息在解码器中进行帧擦除隐藏，其中帧擦除隐藏包括响应于估计的相位信息重新同步每个被擦除隐藏的帧与在该编码的声音信号的相应帧编码器。

6. 发明申请

US20110046947A1 System and Method for Enhancing a Decoded Tonal Sound Signal 有权
标题翻译：用于增强解码音调声音信号的系统和方法
公开(公告)号：US20110046947A1
公开(公告)日：2011-02-24
申请号：US12918586
申请日：2009-03-05
申请人： Tommy Vaillancourt , Milan Jelinek , Vladimir Malenvosky , Redwan Salami
发明人： Tommy Vaillancourt , Milan Jelinek , Vladimir Malenvosky , Redwan Salami
IPC分类号： G10L21/02
CPC分类号： G10L19/26 , G10L25/18
摘要： A system and method for enhancing a tonal sound signal decoded by a decoder of a speech-specific codec in response to a received coded bit stream, in which a spectral analyser is responsive to the decoded tonal sound signal to produce spectral parameters representative of the decoded tonal sound signal. A quantization noise in low-energy spectral regions of the decoded tonal sound signal is reduced in response to the spectral parameters produced by the spectral analyser. The spectral analyser divides a spectrum resulting from spectral analysis into a set of critical frequency bands each comprising a number of frequency bins, and the reducer of quantization noise comprises a noise attenuator that scales the spectrum of the decoded tonal sound signal per critical frequency band, per frequency bin, or per both critical frequency band and frequency bin.
摘要翻译：一种用于响应于接收的编码比特流来增强由语音专用编解码器的解码器解码的音调声音信号的系统和方法，其中频谱分析仪响应于解码的音调声音信号以产生表示解码的频谱参数音调声信号。响应于由光谱分析仪产生的光谱参数，解码的音调声音信号的低能谱区域中的量化噪声被减小。光谱分析仪将从光谱分析得到的光谱分成一组包括多个频率仓的临界频带，并且量化噪声的减法器包括噪声衰减器，其对每个关键频带的解码音调声音信号的频谱进行缩放，每个频率仓，或每个临界频带和频率仓。

7. 发明申请

US20110173004A1 Device and Method for Noise Shaping in a Multilayer Embedded Codec Interoperable with the ITU-T G.711 Standard 审中-公开
标题翻译：可与ITU-T G.711标准互操作的多层嵌入式编解码器中的噪声整形的装置和方法
公开(公告)号：US20110173004A1
公开(公告)日：2011-07-14
申请号：US12664010
申请日：2007-12-28
申请人： Bruno Bessette , Jimmy Lapierre , Vladimir Malenovsky , Roch Lefebvre , Redwan Salami
发明人： Bruno Bessette , Jimmy Lapierre , Vladimir Malenovsky , Roch Lefebvre , Redwan Salami
IPC分类号： G10L19/00
CPC分类号： G10L19/26 , G10L19/005 , G10L19/24 , G10L25/93
摘要： A device and method for shaping noise during encoding of an input sound signal comprise pre-emphasizing the input signal or a decoded signal from a given sound signal codec to produce a pre-emphasized signal, computing a filter transfer function based on the pre-emphasized signal, and shaping the noise by filtering the noise through the transfer function to produce a shaped noise signal, wherein the noise shaping comprises producing a noise feedback. A device and method for noise shaping in a multilayer codec, including at least Layer 1 and 2, comprise: at an encoder, producing an encoded sound signal in Layer 1 including Layer 1 noise shaping, and producing a Layer 2 enhancement signal; at a decoder, decoding the Layer 1 encoded sound signal to produce a synthesis signal, decoding the enhancement signal, computing a filter transfer function based on the synthesis signal, filtering the enhancement signal through the transfer function to produce a Layer 2 filtered enhancement signal, and adding the filtered enhancement signal to the synthesis signal to produce an output signal including contributions from Layer 1 and 2.
摘要翻译：用于在编码输入声音信号期间整形噪声的装置和方法包括预先强调来自给定声音信号编解码器的输入信号或解码信号以产生预加重信号，基于预先强调的信号计算滤波器传递函数信号和整形噪声，通过传递函数对噪声进行滤波以产生成形噪声信号，其中噪声整形包括产生噪声反馈。包括至少第1层和第2层的多层编解码器中的噪声整形的装置和方法包括：在编码器处，产生包括层1噪声整形的层1中的编码声音信号，并产生第2层增强信号; 在解码器处，解码第1层编码声音信号以产生合成信号，对增强信号进行解码，基于合成信号计算滤波器传递函数，通过传递函数对增强信号进行滤波，以产生第2层滤波的增强信号，并将经滤波的增强信号加到合成信号上以产生包括来自层1和2的贡献的输出信号。

8. 发明申请

US20110022924A1 Device and Method for Frame Erasure Concealment in a PCM Codec Interoperable with the ITU-T Recommendation G. 711 审中-公开
标题翻译： PCM编解码器中帧擦除隐藏的设备和方法，可与ITU-T建议书G. 711相互兼容
公开(公告)号：US20110022924A1
公开(公告)日：2011-01-27
申请号：US12664024
申请日：2007-12-24
申请人： Vladimir Malenovsky , Redwan Salami
发明人： Vladimir Malenovsky , Redwan Salami
IPC分类号： H03M13/05 , G06F11/10
CPC分类号： G10L19/26 , G10L19/005 , G10L19/24 , G10L25/93
摘要： A device and method for resynchronization and recovery after frame erasure concealment of an encoded sound signal comprise decoding, in a current frame, a correctly received signal after the frame erasure. Frame erasure concealment is extended in the current frame using an erasure-concealed signal from a previous frame to produce an extended erasure-concealed signal. The extended erasure-concealed signal is correlated with the decoded signal in the current frame and the extended erasure-concealed signal is synchronized with the decoded signal in response to the correlation. A smooth transition is produced in the current frame from the synchronized extended erasure-concealed signal to the decoded signal.
摘要翻译：在编码声音信号的帧擦除隐藏之后重新同步和恢复的装置和方法包括在帧擦除之后在当前帧中解码正确接收的信号。帧擦除隐藏在当前帧中使用来自前一帧的擦除隐藏信号来扩展以产生扩展的擦除隐藏信号。扩展的擦除隐藏信号与当前帧中的解码信号相关，并且扩展的擦除隐藏信号响应于相关而与解码信号同步。在当前帧中从同步的扩展消隐隐藏信号到解码信号产生平滑的转变。

9. 发明授权

US07203638B2 Method for interoperation between adaptive multi-rate wideband (AMR-WB) and multi-mode variable bit-rate wideband (VMR-WB) codecs 有权
标题翻译：自适应多速率宽带（AMR-WB）和多模式可变比特率宽带（VMR-WB）编解码器之间的互操作方法
公开(公告)号：US07203638B2
公开(公告)日：2007-04-10
申请号：US11039540
申请日：2005-01-19
申请人： Milan Jelinek , Redwan Salami
发明人： Milan Jelinek , Redwan Salami
IPC分类号： G10L19/00
CPC分类号： G10L19/24 , G10L19/012 , G10L19/173
摘要： A source-controlled Variable bit-rate Multi-mode WideBand (VMR-WB) codec, having a mode of operation that is interoperable with the Adaptive Multi-Rate wideband (AMR-WB) codec, the codec comprising: at least one Interoperable full-rate (I-FR) mode, having a first bit allocation structure based on one of a AMR-WB codec coding types; and at least one comfort noise generator (CNG) coding type for encoding inactive speech frame having a second bit allocation structure based on AMR-WB SID_UPDATE coding type. Methods for i) digitally encoding a sound using a source-controlled Variable bit rate multi-mode wideband (VMR-WB) codec for interoperation with an adaptative multi-rate wideband (AMR-WB) codec, ii) translating a Variable bit rate multi-mode wideband (VMR-WB) codecsignal frame into an Adaptive Multi-Rate wideband (AMR-WB) signal frame, iii) translating an Adaptive Multi-Rate wideband (AMR-WB) signal frame into a Variable bit rate multi-mode wideband (VMR-WB) signal frame, and iv) translating an Adaptive Multi-Rate wideband (AMR-WB) signal frame into a Variable bit rate multi-mode wideband (VMR-WB) signal frame are also provided.
摘要翻译：源控制的可变比特率多模宽带（VMR-WB）编解码器，具有可与自适应多速率宽带（AMR-WB）编解码器互操作的操作模式，编解码器包括：至少一个可互操作的全（I-FR）模式，具有基于AMR-WB编解码编码类型之一的第一比特分配结构; 以及至少一种用于编码基于AMR-WB SID_UPDATE编码类型的具有第二比特分配结构的无效语音帧的舒适噪声发生器（CNG）编码类型。用于i）使用源控制的可变比特率多模宽带（VMR-WB）编解码器对适应性多速率宽带（AMR-WB）编解码器进行互操作的数字编码声音的方法，ii）将可变比特率多（VMR-WB）编解码信号帧转换为自适应多速率宽带（AMR-WB）信号帧，iii）将自适应多速率宽带（AMR-WB）信号帧转换为可变比特率多模宽带（VMR-WB）信号帧，以及iv）将自适应多速率宽带（AMR-WB）信号帧转换为可变比特率多模宽带（VMR-WB）信号帧。

10. 发明申请

US20100280831A1 Method and Device for Fast Algebraic Codebook Search in Speech and Audio Coding 有权
标题翻译：用于语音和音频编码的快速代数码本搜索的方法和设备
公开(公告)号：US20100280831A1
公开(公告)日：2010-11-04
申请号：US12676004
申请日：2008-09-11
申请人： Redwan Salami , Vaclav Eksler , Milan Jelinek
发明人： Redwan Salami , Vaclav Eksler , Milan Jelinek
IPC分类号： G10L21/00
CPC分类号： G10L19/107
摘要： A method and device for searching an algebraic codebook during encoding of a sound signal, wherein the algebraic codebook comprises a set of codevectors formed of a number of pulse positions and a number of pulses distributed over the pulse positions. In the algebraic codebook searching method and device, a reference signal for use in searching the algebraic codebook is calculated. In a first stage, a position of a first pulse is determined in relation with the reference signal and among the number of pulse positions. In each of a number of stages subsequent to the first stage, (a) an algebraic codebook gain is recomputed, (b) the reference signal is updated using the recomputed algebraic codebook gain and (c) a position of another pulse is determined in relation with the updated reference signal and among the number of pulse positions. A codevector of the algebraic codebook is computed using the positions of the pulses determined in the first and subsequent stages, wherein a number of the first and subsequent stages corresponds to the number of pulses in the codevectors of the algebraic codebook.
摘要翻译：一种用于在编码声音信号期间搜索代数码本的方法和装置，其中代数码本包括由多个脉冲位置和分布在脉冲位置上的多个脉冲形成的一组码矢。在代数码本搜索方法和装置中，计算用于搜索代数码本的参考信号。在第一阶段中，相对于参考信号和脉冲位置数确定第一脉冲的位置。在第一阶段之后的多个阶段的每个阶段中，（a）代数码本增益被重新计算，（b）使用重新计算的代数码本增益来更新参考信号，并且（c）另一个脉冲的位置被确定具有更新的参考信号和脉冲位置的数量。使用在第一级和后级中确定的脉冲的位置来计算代数码本的码矢量，其中第一级和后级的数量对应于代数码本的代码矢量中的脉冲数。

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