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    Teleconferencing using steganographically-embedded audio data
    1.
    发明授权
    Teleconferencing using steganographically-embedded audio data 有权
    使用隐形嵌入式音频数据进行电话会议

    公开(公告)号：US09191516B2

    公开(公告)日：2015-11-17

    申请号：US13771957

    申请日：2013-02-20

    Applicant: Qualcomm Incorporated

    Inventor： Stephane Pierre Villette ,  Daniel J. Sinder

    IPC: H04M3/56 ,  G10L19/018

    CPC classification number: H04M3/568 ,  G10L19/018

    Abstract: A multi-party control unit (MCU) generates, based on audio data streams that represent sounds associated terminal devices, a mixed audio data stream. In addition, the MCU modifies the mixed mono audio data to steganographically embed sub-streams that include representations of the mono audio data streams. A terminal device receives the modified mixed audio data stream. When the terminal device is configured for stereo playback, the terminal device performs an inverse steganographic process to extract, from the mixed audio data stream, the sub-streams. The terminal device generates and outputs multi-channel audio data based on the extracted sub-streams and the mixed audio data stream. When the terminal device is not configured for stereo playback, the terminal device outputs sound based on the mixed audio data stream without extracting the embedded sub-streams.

    Abstract translation: 多方控制单元（MCU）基于表示声音关联终端设备的音频数据流，生成混合音频数据流。 此外，MCU将混合的单声道音频数据修改为隐写地嵌入包括单声道音频数据流的表示的子流。 终端设备接收修改的混合音频数据流。 当终端设备被配置为用于立体声回放时，终端设备执行逆隐写处理以从混合音频数据流中提取子流。 终端设备基于所提取的子流和混合音频数据流生成并输出多声道音频数据。 当终端设备未配置为立体声播放时，终端设备基于混合音频数据流输出声音，而不提取嵌入的子流。

    HIGH BAND EXCITATION SIGNAL GENERATION
    2.
    发明申请
    HIGH BAND EXCITATION SIGNAL GENERATION 有权
    高带激发信号产生

    公开(公告)号：US20150317994A1

    公开(公告)日：2015-11-05

    申请号：US14265693

    申请日：2014-04-30

    Applicant: QUALCOMM Incorporated

    Inventor： Pravin Kumar Ramadas ,  Daniel J. Sinder ,  Stephane Pierre Villette ,  Vivek Rajendran

    IPC: G10L19/08

    CPC classification number: G10L19/08 ,  G10L19/24

    Abstract: A particular method includes determining, at a device, a voicing classification of an input signal. The input signal corresponds to an audio signal. The method also includes controlling an amount of an envelope of a representation of the input signal based on the voicing classification. The method further includes modulating a white noise signal based on the controlled amount of the envelope. The method also includes generating a high band excitation signal based on the modulated white noise signal.

    Abstract translation: 一种特定的方法包括在设备处确定输入信号的语音分类。 输入信号对应于音频信号。 该方法还包括基于语音分类来控制输入信号的表示的包络的量。 该方法还包括基于信封的受控量来调制白噪声信号。 该方法还包括基于调制的白噪声信号产生高频激励信号。

    FREQUENCY DOMAIN GAIN SHAPE ESTIMATION
    3.
    发明申请
    FREQUENCY DOMAIN GAIN SHAPE ESTIMATION 审中-公开
    频域增益形状估计

    公开(公告)号：US20150149157A1

    公开(公告)日：2015-05-28

    申请号：US14550737

    申请日：2014-11-21

    Applicant: QUALCOMM Incorporated

    Inventor： Venkatraman S. Atti ,  Venkata Subrahmanyam Chandra Sekhar Chebiyyam ,  Venkatesh Krishnan ,  Stephane Pierre Villette

    IPC: G10L19/02 ,  G10L19/26

    CPC classification number: G10L19/0204 ,  G10L19/0208 ,  G10L19/022 ,  G10L19/24 ,  G10L19/265

    Abstract: A method includes determining, at a speech encoder, frequency domain gain shape parameters. The frequency domain gain shape parameters are based on a second signal associated with an audio signal. The method further includes adjusting a first signal based on the frequency domain gain shape parameters. The first signal is associated with the audio signal. The method also includes inserting the frequency domain gain shape parameters into an encoded version of the audio signal to enable gain adjustment during reproduction of the audio signal from the encoded version of the audio signal.

    Abstract translation: 一种方法包括在语音编码器处确定频域增益形状参数。 频域增益形状参数基于与音频信号相关联的第二信号。 该方法还包括基于频域增益形状参数调整第一信号。 第一个信号与音频信号相关联。 该方法还包括将频域增益形状参数插入到音频信号的编码版本中，以便在从音频信号的编码版本再现音频信号期间实现增益调整。

    Bandwidth extension mode selection
    6.
    发明授权
    Bandwidth extension mode selection 有权
    带宽扩展模式选择

    公开(公告)号：US09293143B2

    公开(公告)日：2016-03-22

    申请号：US14270963

    申请日：2014-05-06

    Applicant: QUALCOMM Incorporated

    Inventor： Stephane Pierre Villette ,  Daniel J. Sinder

    IPC: G10L19/00 ,  G10L19/008 ,  G10L19/24 ,  G10L19/005 ,  G10L21/038

    CPC classification number: G10L19/00 ,  G10L19/005 ,  G10L19/008 ,  G10L19/24 ,  G10L21/038

    Abstract: A device includes a decoder that includes an extractor, a predictor, a selector, and a switch. The extractor is configured to extract a first plurality of parameters from a received input signal. The input signal corresponds to an encoded audio signal. The predictor is configured to perform blind bandwidth extension by generating a second plurality of parameters independent of high band information in the input signal. The second plurality of parameters corresponds to a high band portion of the encoded audio signal. The selector is configured to select a particular mode from multiple high band modes including a first mode using the first plurality of parameters and a second mode using the second plurality of parameters. The switch is configured to output the first plurality of parameters or the second plurality of parameters based on the selected particular mode.

    Abstract translation: 一种设备包括一个包括提取器，预测器，选择器和开关的解码器。 提取器被配置为从接收到的输入信号中提取第一多个参数。 输入信号对应于编码音频信号。 预测器被配置为通过产生独立于输入信号中的高频带信息的第二多个参数来执行盲带宽扩展。 第二多个参数对应于编码音频信号的高频带部分。 选择器被配置为从包括使用第一多个参数的第一模式和使用第二多个参数的第二模式的多个高频带模式中选择特定模式。 该开关被配置为基于所选择的特定模式来输出第一多个参数或第二多个参数。

    SYSTEMS AND METHODS OF BLIND BANDWIDTH EXTENSION
    7.
    发明申请
    SYSTEMS AND METHODS OF BLIND BANDWIDTH EXTENSION 有权
    盲带延伸的系统和方法

    公开(公告)号：US20150170654A1

    公开(公告)日：2015-06-18

    申请号：US14334921

    申请日：2014-07-18

    Applicant: QUALCOMM Incorporated

    Inventor： Sen Li ,  Stephane Pierre Villette ,  Daniel J. Sinder ,  Pravin Kumar Ramadas

    IPC: G10L19/00

    CPC classification number: G10L19/00 ,  G10L21/0388

    Abstract: Systems and methods of performing blind bandwidth extension are disclosed. In an embodiment, a method includes determining, based on a set of low-band parameters of an audio signal, a first set of high-band parameters and a second set of high-band parameters. The method further includes generating a predicted set of high-band parameters based on a weighted combination of the first set of high-band parameters and the second set of high-band parameters.

    Abstract translation: 公开了执行盲带宽扩展的系统和方法。 在一个实施例中，一种方法包括基于一组音频信号的低频带参数来确定第一组高频带参数和第二组高频带参数。 该方法还包括基于第一组高频带参数和第二组高频带参数的加权组合来生成预测的一组高频带参数。

    Systems and methods of energy-scaled signal processing
    9.
    发明授权
    Systems and methods of energy-scaled signal processing 有权
    能量级信号处理的系统和方法

    公开(公告)号：US09384746B2

    公开(公告)日：2016-07-05

    申请号：US14512892

    申请日：2014-10-13

    Applicant: QUALCOMM Incorporated

    Inventor： Venkatraman S. Atti ,  Venkatesh Krishnan ,  Stephane Pierre Villette ,  Vivek Rajendran

    IPC: G10L19/035 ,  G10L21/038 ,  G10L19/08 ,  G10L19/083 ,  G10L19/02

    CPC classification number: G10L19/035 ,  G10L19/0204 ,  G10L19/08 ,  G10L19/083 ,  G10L21/038

    Abstract: A method includes determining a first modeled high-band signal based on a low-band excitation signal of an audio signal, where the audio signal includes a high-band portion and a low-band portion. The method also includes determining scaling factors based on energy of sub-frames of the first modeled high-band signal and energy of corresponding sub-frames of the high-band portion of the audio signal. The method includes applying the scaling factors to a modeled high-band excitation signal to determine a scaled high-band excitation signal and determining a second modeled high-band signal based on the scaled high-band excitation signal. The method includes determining gain parameters based on the second modeled high-band signal and the high-band portion of the audio signal.

    Abstract translation: 一种方法包括基于音频信号的低频带激励信号来确定第一建模的高频带信号，其中音频信号包括高频带部分和低频带部分。 该方法还包括基于第一建模高频带信号的子帧的能量和音频信号的高频带部分的对应子帧的能量来确定缩放因子。 该方法包括将缩放因子应用于建模的高频带激励信号以确定缩放的高频带激励信号，并且基于经缩放的高频带激励信号确定第二建模的高频带信号。 该方法包括基于第二建模高频带信号和音频信号的高频带部分确定增益参数。

    Systems and methods for quantizing and dequantizing phase information
    10.
    发明授权
    Systems and methods for quantizing and dequantizing phase information 有权
    用于量化和反量化相位信息的系统和方法

    公开(公告)号：US09236058B2

    公开(公告)日：2016-01-12

    申请号：US14015991

    申请日：2013-08-30

    Applicant: QUALCOMM Incorporated

    Inventor： Subasingha Shaminda Subasingha ,  Venkatesh Krishnan ,  Vivek Rajendran ,  Stephane Pierre Villette

    IPC: G10L19/02 ,  G10L19/032 ,  G10L19/097

    CPC classification number: G10L19/032 ,  G10L19/02 ,  G10L19/097

    Abstract: A method for quantizing phase information on an electronic device is described. The method includes obtaining a speech signal. The method also includes determining a prototype pitch period signal based on the speech signal and transforming the prototype pitch period signal into a first frequency-domain signal. The method additionally includes mapping the first frequency-domain signal into a plurality of subbands. The method also includes determining a global alignment based on the first frequency-domain signal and quantizing the global alignment utilizing scalar quantization to obtain a quantized global alignment. The method additionally includes determining a plurality of band alignments corresponding to the plurality of subbands. The method also includes quantizing the plurality of band alignments utilizing vector quantization to obtain a quantized plurality of band alignments. The method further includes transmitting the quantized global alignment and the quantized plurality of band alignments.

    Abstract translation: 描述用于量化电子设备上的相位信息的方法。 该方法包括获得语音信号。 该方法还包括基于语音信号确定原型音调周期信号，并将原型音调周期信号变换为第一频域信号。 该方法还包括将第一频域信号映射到多个子带中。 该方法还包括基于第一频域信号确定全局对准，并使用标量量化量化全局比对以获得量化的全局比对。 该方法还包括确定对应于多个子带的多个频带对准。 该方法还包括利用矢量量化来量化多个频带比对以获得量化的多个频带比对。 该方法还包括发送量化的全局比对和量化的多个频带比对。

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