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    • 1. 发明申请
    • Method And Device For The Artificial Extension Of The Bandwidth Of Speech Signals
    • 语音信号带宽人工扩展的方法和装置
    • US20080126081A1
    • 2008-05-29
    • US11662592
    • 2006-06-30
    • Bernd GeiserPeter JaxStefan SchandlHerve TaddeiAulis TellePeter Vary
    • Bernd GeiserPeter JaxStefan SchandlHerve TaddeiAulis TellePeter Vary
    • G10L19/00
    • G10L21/038
    • A method for the artificial extension of the bandwidth of speech signals involves: a) Provision of a wideband input speech signal (swbi(k)); b) Determination of the signal components (seb(k)) of the wideband input speech signal (swbi(k)) required for the bandwidth extension from an extension band from the wideband input speech signal (swbi(k)); c) Determination of the temporal envelopes of the signal components (seb(k)) determined for the bandwidth extension; d) Determination of the spectral envelopes of the signal components (seb(k)) determined for bandwidth extension; e) Encoding of the information for the temporal envelopes and the spectral envelopes, and provision of the encoded information by carrying out the extension of the bandwidth; f) Decoding of the encoded information and generation of the temporal envelopes and the spectral envelopes from the encoded information for the production of a bandwidth-extended output speech signal (swbo(k)).
    • 用于人造扩展语音信号带宽的方法包括:a)提供宽带输入语音信号(k); b)要求确定宽带输入语音信号(s(k))的信号分量(s),(k)) 用于从宽带输入语音信号(k)的扩展频带的带宽扩展; c)确定针对带宽扩展确定的信号分量的时间包络的确定(s∈Ek(k)); d)确定用于带宽扩展确定的信号分量(s)的频谱包络的​​确定; e)对时间信封和频谱包络信息进行编码,并通过执行带宽的扩展来提供编码信息; f)从用于产生带宽扩展输出语音信号的编码信息中解码编码信息和生成时间包络和频谱包络, (k))。
    • 2. 发明授权
    • Method and device for the artificial extension of the bandwidth of speech signals
    • 用于人为延长语音信号带宽的方法和装置
    • US08265940B2
    • 2012-09-11
    • US11662592
    • 2006-06-30
    • Bernd GeiserPeter JaxStefan SchandlHerve TaddeiAulis TellePeter Vary
    • Bernd GeiserPeter JaxStefan SchandlHerve TaddeiAulis TellePeter Vary
    • G10L19/00G10L21/00
    • G10L21/038
    • A method for the artificial extension of the bandwidth of speech signals involves: a) Provision of a wideband input speech signal (swbi(k)); b) Determination of the signal components (seb(k)) of the wideband input speech signal (swbi(k)) required for the bandwidth extension from an extension band from the wideband input speech signal (swbi(k)); c) Determination of the temporal envelopes of the signal components (seb(k)) determined for the bandwidth extension; d) Determination of the spectral envelopes of the signal components (seb(k)) determined for bandwidth extension; e) Encoding of the information for the temporal envelopes and the spectral envelopes, and provision of the encoded information by carrying out the extension of the bandwidth; f) Decoding of the encoded information and generation of the temporal envelopes and the spectral envelopes from the encoded information for the production of a bandwidth-extended output speech signal (swbo(k)).
    • 用于人造语音信号带宽扩展的方法包括:a)提供宽带输入语音信号(swbi(k)); b)确定来自宽带输入语音信号(swbi(k))的扩展频带的带宽扩展所需的宽带输入语音信号(swbi(k))的信号分量(seb(k)))。 c)确定为带宽扩展确定的信号分量(seb(k))的时间包络的确定; d)确定用于带宽扩展的信号分量(seb(k))的频谱包络的​​确定; e)对时间信封和频谱包络信息进行编码,并通过执行带宽的扩展来提供编码信息; f)从用于产生带宽扩展输出语音信号(swbo(k))的编码信息中解码编码信息和生成时间包络和频谱包络。
    • 3. 发明授权
    • Method and arrangements for audio signal encoding
    • 音频信号编码的方法和布置
    • US08612216B2
    • 2013-12-17
    • US12223362
    • 2006-01-31
    • Martin GartnerBernd GeiserPeter JaxStefan SchandlHerve TaddeiPeter Vary
    • Martin GartnerBernd GeiserPeter JaxStefan SchandlHerve TaddeiPeter Vary
    • G10L19/08G10L19/12
    • G10L19/0208G10L21/038
    • To form an audio signal, frequency components of the audio signal which are allotted to a first subband are formed by means of a subband decoder using supplied fundamental period values which respectively indicate a fundamental period for the audio signal. Frequency components of the audio signal which are allotted to a second subband are formed by exciting an audio synthesis filter using an excitation signal which is specific to the second subband. To produce this excitation signal, an excitation signal generator derives a fundamental period parameter from the fundamental period values. The fundamental period parameter is used by the excitation signal generator to form pulses with a pulse shape which is dependent on the fundamental period parameter at an interval of time which is determined by the fundamental period parameter and to mix them with a noise signal.
    • 为了形成音频信号,分配给第一子带的音频信号的频率分量通过使用提供的基本周期值的子带解码器形成,该基带周期值分别表示音频信号的基本周期。 通过使用特定于第二子带的激励信号激励音频合成滤波器来形成分配给第二子带的音频信号的频率分量。 为了产生该激励信号,激励信号发生器从基本周期值导出基本周期参数。 基频周期参数由激励信号发生器使用,以形成脉冲形状的脉冲,脉冲形状取决于基本周期参数,该时间间隔由基本周期参数决定,并将其与噪声信号混合。
    • 4. 发明申请
    • Method and Arrangements for Audio Signal Encoding
    • 音频信号编码的方法和布置
    • US20090024399A1
    • 2009-01-22
    • US12223362
    • 2006-01-31
    • Martin GartnerBernd GeiserPeter JaxStefan SchandlHerve TaddeiPeter Vary
    • Martin GartnerBernd GeiserPeter JaxStefan SchandlHerve TaddeiPeter Vary
    • G10L19/00
    • G10L19/0208G10L21/038
    • To form an audio signal, frequency components of the audio signal which are allotted to a first subband are formed by means of a subband decoder using supplied fundamental period values which respectively indicate a fundamental period for the audio signal. Frequency components of the audio signal which are allotted to a second subband are formed by exciting an audio synthesis filter using an excitation signal which is specific to the second subband. To produce this excitation signal, an excitation signal generator derives a fundamental period parameter from the fundamental period values. The fundamental period parameter is used by the excitation signal generator to form pulses with a pulse shape which is dependent on the fundamental period parameter at an interval of time which is determined by the fundamental period parameter and to mix them with a noise signal.
    • 为了形成音频信号,分配给第一子带的音频信号的频率分量通过使用提供的基本周期值的子带解码器形成,该基带周期值分别表示音频信号的基本周期。 通过使用特定于第二子带的激励信号激励音频合成滤波器来形成分配给第二子带的音频信号的频率分量。 为了产生该激励信号,激励信号发生器从基本周期值导出基本周期参数。 基频周期参数由激励信号发生器使用,以形成脉冲形状的脉冲,脉冲形状取决于基本周期参数,该时间间隔由基本周期参数决定,并将其与噪声信号混合。
    • 5. 发明授权
    • Method and arrangements for coding audio signals
    • 编码音频信号的方法和布置
    • US08135584B2
    • 2012-03-13
    • US12223359
    • 2006-01-31
    • Bernd GeiserPeter JaxStefan SchandlHerve Taddei
    • Bernd GeiserPeter JaxStefan SchandlHerve Taddei
    • G10L19/00
    • G10L21/038G10L19/12G10L2019/0001
    • According to the invention, an excitation signal is generated as a result of sampled excitation values in order to excite an audio synthesis filter, the generated sampled excitation values being continuously stored in an adaptive codebook. A noise generator is provided which continuously generates random sampled values. A sequence of the stored sampled excitation values is selected from the adaptive codebook based on a fed audio fundamental frequency parameter by means of which a time gap between the sequence that is to be selected and the actual time reference is predefined. The excitation signal is generated by mixing the selected sequence with a random sequence encompassing actual random sampled valued of the noise generator.
    • 根据本发明,作为采样激励值的结果产生激励信号,以激发音频合成滤波器,所生成的采样激励值被连续存储在自适应码本中。 提供连续产生随机采样值的噪声发生器。 基于馈送的音频基频参数,从自适应码本中选择存储的采样激励值的序列,通过该序列,预定要选择的序列与实际时间基准之间的时间间隔。 通过将所选择的序列与包含噪声发生器的实际随机采样值的随机序列混合来产生激励信号。
    • 7. 发明授权
    • Steganography in digital signal encoders
    • 数字信号编码器的隐写术
    • US08412519B2
    • 2013-04-02
    • US12441209
    • 2007-08-29
    • Bernd GeiserPeter Vary
    • Bernd GeiserPeter Vary
    • G10L19/00G10L19/12
    • H04K1/00G10L19/018G10L19/12G10L2019/0007
    • In a method for embedding steganographic information into the signal information of a signal encoder, a solution is to be created, which enables steganographic information being embedded into the signal information of a signal encoder such that a reduction of the voice quality is largely avoided. This is achieved by means of providing data information, particularly voice information, selecting steganographic information from a quantity of steganographic information, generating a code word from a code book provided by means of the signal encoder on the basis of the code elements forming the code book such that with the use of the code word generated within the scope of a transmission standard associated with the code book the data information is encoded into signal information containing the code word and/or making reference to the code word; and by the code word generated having an additional feature that can be calculated on the basis of the code elements forming the code word, wherein the additional feature represents the steganographic information.
    • 在将隐写信息嵌入到信号编码器的信号信息中的方法中,将创建一种解决方案,这使得将隐写信息嵌入到信号编码器的信号信息中,从而大大避免了语音质量的降低。 这是通过提供数据信息,特别是语音信息,从隐匿信息量的数量中选择隐写信息,根据构成码本的代码元素,通过信号编码器提供的代码簿生成代码字来实现的 使得通过使用与代码簿相关联的传输标准的范围内生成的代码字,将数据信息编码成包含代码字的信号信息和/或引用代码字; 并且通过生成的代码字具有可以基于形成代码字的代码元素计算的附加特征,其中附加特征代表隐写信息。
    • 10. 发明申请
    • Steganography in Digital Signal Encoders
    • 数字信号编码器的隐写术
    • US20110131047A1
    • 2011-06-02
    • US12441209
    • 2007-08-29
    • Bernd GeiserPeter Vary
    • Bernd GeiserPeter Vary
    • G10L11/00
    • H04K1/00G10L19/018G10L19/12G10L2019/0007
    • In a method for embedding steganographic information into the signal information of a signal encoder, a solution is to be created, which enables steganographic information being embedded into the signal information of a signal encoder such that a reduction of the voice quality is largely avoided. This is achieved by means of providing data information, particularly voice information, selecting steganographic information from a quantity of steganographic information, generating a code word from a code book provided by means of the signal encoder on the basis of the code elements forming the code book such that with the use of the code word generated within the scope of a transmission standard associated with the code book the data information is encoded into signal information containing the code word and/or making reference to the code word; and by the code word generated having an additional feature that can be calculated on the basis of the code elements forming the code word, wherein the additional feature represents the steganographic information.
    • 在将隐写信息嵌入到信号编码器的信号信息中的方法中,将创建一种解决方案,这使得将隐写信息嵌入到信号编码器的信号信息中,从而大大避免了语音质量的降低。 这是通过提供数据信息,特别是语音信息,从隐匿信息量的数量中选择隐写信息,根据构成码本的代码元素,通过信号编码器提供的代码簿生成代码字来实现的 使得通过使用与代码簿相关联的传输标准的范围内生成的代码字,将数据信息编码成包含代码字的信号信息和/或引用代码字; 并且通过生成的代码字具有可以基于形成代码字的代码元素计算的附加特征,其中附加特征代表隐写信息。