Apparatus and method of enhancing quality of speech codec
    2.
    发明授权
    Apparatus and method of enhancing quality of speech codec 有权
    提高语音编解码质量的装置和方法

    公开(公告)号:US09135925B2

    公开(公告)日:2015-09-15

    申请号:US12529239

    申请日:2008-11-28

    摘要: An apparatus and method of improving the quality of a speech codec are provided. In the method, a first energy of a signal decoded by a core codec is calculated, and a second energy of a signal decoded by a low-band enhancement mode is calculated. Then, when the first energy is less than a first threshold value or less than a product of the second energy and a second threshold value, a size of the decoded signal is scaled. Accordingly, generation of a quantization error with respect to a silence segment is reduced.

    摘要翻译: 提供了一种提高语音编解码器质量的装置和方法。 在该方法中,计算由核心编解码器解码的信号的第一能量,并且计算通过低频带增强模式解码的信号的第二能量。 然后,当第一能量小于第一阈值或小于第二能量与第二阈值的乘积时,解码信号的大小被缩放。 因此,减少相对于静音段的量化误差的产生。

    APPARATUS AND METHOD OF ENHANCING QUALITY OF SPEECH CODEC
    3.
    发明申请
    APPARATUS AND METHOD OF ENHANCING QUALITY OF SPEECH CODEC 有权
    提高语音编解码质量的装置和方法

    公开(公告)号:US20100057449A1

    公开(公告)日:2010-03-04

    申请号:US12529239

    申请日:2008-11-28

    IPC分类号: G10L19/00

    摘要: An apparatus and method of improving the quality of a speech codec are provided. In the method, a first energy of a signal decoded by a core codec is calculated, and a second energy of a signal decoded by a low-band enhancement mode is calculated. Then, when the first energy is less than a first threshold value or less than a product of the second energy and a second threshold value, a size of the decoded signal is scaled. Accordingly, generation of a quantization error with respect to a silence segment is reduced.

    摘要翻译: 提供了一种提高语音编解码器质量的装置和方法。 在该方法中,计算由核心编解码器解码的信号的第一能量,并且计算通过低频带增强模式解码的信号的第二能量。 然后,当第一能量小于第一阈值或小于第二能量与第二阈值的乘积时,解码信号的大小被缩放。 因此,减少相对于静音段的量化误差的产生。

    Apparatus and method of enhancing quality of speech codec
    4.
    发明授权
    Apparatus and method of enhancing quality of speech codec 有权
    提高语音编解码质量的装置和方法

    公开(公告)号:US09142222B2

    公开(公告)日:2015-09-22

    申请号:US13613792

    申请日:2012-09-13

    摘要: An apparatus and method of improving the quality of a speech codec are provided. In the method, a first energy of a signal decoded by a low-band codec is calculated, and a second energy of a signal decoded by a low-band enhancement mode is calculated. Then, when the first energy is less than a first threshold value or less than a product of the second energy and a second threshold value, a size of the decoded signal is scaled. Accordingly, generation of a quantization error with respect to a silence segment is reduced.

    摘要翻译: 提供了一种提高语音编解码器质量的装置和方法。 在该方法中,计算由低频带编解码器解码的信号的第一能量,并且计算通过低频带增强模式解码的信号的第二能量。 然后,当第一能量小于第一阈值或小于第二能量与第二阈值的乘积时,解码信号的大小被缩放。 因此,减少相对于静音段的量化误差的产生。

    Method and apparatus for decoding audio signal
    5.
    发明授权
    Method and apparatus for decoding audio signal 有权
    用于解码音频信号的方法和装置

    公开(公告)号:US09111535B2

    公开(公告)日:2015-08-18

    申请号:US13011273

    申请日:2011-01-21

    CPC分类号: G10L19/093 G10L19/24

    摘要: Provided are a method and an apparatus for decoding an audio signal. A method for decoding an audio signal encoded by a layered sinusoidal pulse coding scheme using one or more sinusoidal pulses includes decoding the encoded audio signal, setting a smoothing frequency band of the decoded audio signal according to a layer structure of the layered sinusoidal pulse coding scheme, dividing the smoothing frequency band into one or more subbands, and smoothing the decoded audio signal on a subband-by-subband basis. Accordingly, a decoding operation time can be reduced and the quality of a synthesized signal can be improved by variably setting a frequency band to be smoothed, when decoding an audio signal encoded by a layered sinusoidal pulse coding scheme using one or more sinusoidal pulses.

    摘要翻译: 提供了一种用于对音频信号进行解码的方法和装置。 一种使用一个或多个正弦脉冲对由分层正弦脉冲编码方案编码的音频信号进行解码的方法包括解码编码音频信号,根据分层正弦脉冲编码方案的层结构设置解码音频信号的平滑频带 将平滑频带划分成一个或多个子带,并且以逐个子带为基础平滑解码的音频信号。 因此,当使用一个或多个正弦脉冲对由分层正弦脉冲编码方案编码的音频信号进行解码时,可以通过可变地设置要平滑的频带来改善解码操作时间并且可以提高合成信号的质量。

    METHOD AND APPARATUS FOR ENCODING AND DECODING AUDIO SIGNAL USING LAYERED SINUSOIDAL PULSE CODING
    6.
    发明申请
    METHOD AND APPARATUS FOR ENCODING AND DECODING AUDIO SIGNAL USING LAYERED SINUSOIDAL PULSE CODING 有权
    使用层状SINUSOIDAL脉冲编码来编码和解码音频信号的方法和装置

    公开(公告)号:US20120095754A1

    公开(公告)日:2012-04-19

    申请号:US13321297

    申请日:2010-05-19

    IPC分类号: G10L19/02

    摘要: Provided are a method and an apparatus for encoding and decoding an audio signal. A method for encoding an audio signal includes receiving a transformed audio signal, dividing the transformed audio signal into a plurality of subbands, performing a first sinusoidal pulse coding operation on the subbands, determining a performance region of a second sinusoidal pulse coding operation among the subbands on the basis of coding information of the first sinusoidal pulse coding operation, and performing the second sinusoidal pulse coding operation on the determined performance region, wherein the first sinusoidal pulse coding operation is performed variably according to the coding information. Accordingly, it is possible to further improve the quality of a synthesized signal by considering the sinusoidal pulse coding of a lower layer when encoding or decoding an audio signal in an upper layer by a layered sinusoidal pulse coding scheme.

    摘要翻译: 提供了一种用于对音频信号进行编码和解码的方法和装置。 一种对音频信号进行编码的方法包括接收经变换的音频信号,将变换的音频信号分成多个子带,对子带执行第一正弦脉冲编码操作,确定子带中的第二正弦脉冲编码操作的性能区域 基于第一正弦脉冲编码操作的编码信息,并对所确定的执行区域执行第二正弦脉冲编码操作,其中根据编码信息可变地执行第一正弦脉冲编码操作。 因此,通过考虑在通过分层正弦脉冲编码方案对上层中的音频信号进行编码或解码时下层的正弦脉冲编码,可以进一步提高合成信号的质量。

    Method and apparatus for encoding and decoding audio signal using layered sinusoidal pulse coding
    7.
    发明授权
    Method and apparatus for encoding and decoding audio signal using layered sinusoidal pulse coding 有权
    使用分层正弦脉冲编码对音频信号进行编码和解码的方法和装置

    公开(公告)号:US08805680B2

    公开(公告)日:2014-08-12

    申请号:US13321297

    申请日:2010-05-19

    IPC分类号: G10L19/02

    摘要: Provided are a method and an apparatus for encoding and decoding an audio signal. A method for encoding an audio signal includes receiving a transformed audio signal, dividing the transformed audio signal into a plurality of subbands, performing a first sinusoidal pulse coding operation on the subbands, determining a performance region of a second sinusoidal pulse coding operation among the subbands on the basis of coding information of the first sinusoidal pulse coding operation, and performing the second sinusoidal pulse coding operation on the determined performance region, wherein the first sinusoidal pulse coding operation is performed variably according to the coding information. Accordingly, it is possible to further improve the quality of a synthesized signal by considering the sinusoidal pulse coding of a lower layer when encoding or decoding an audio signal in an upper layer by a layered sinusoidal pulse coding scheme.

    摘要翻译: 提供了一种用于对音频信号进行编码和解码的方法和装置。 一种对音频信号进行编码的方法包括接收经变换的音频信号,将变换的音频信号分成多个子带,对子带执行第一正弦脉冲编码操作,确定子带中的第二正弦脉冲编码操作的性能区域 基于第一正弦脉冲编码操作的编码信息,并对所确定的执行区域执行第二正弦脉冲编码操作,其中根据编码信息可变地执行第一正弦脉冲编码操作。 因此,通过考虑在通过分层正弦脉冲编码方案对上层中的音频信号进行编码或解码时下层的正弦脉冲编码,可以进一步提高合成信号的质量。

    METHOD AND APPARATUS FOR ENCODING AND DECODING AUDIO SIGNAL USING ADAPTIVE SINUSOIDAL CODING
    8.
    发明申请
    METHOD AND APPARATUS FOR ENCODING AND DECODING AUDIO SIGNAL USING ADAPTIVE SINUSOIDAL CODING 有权
    使用自适应SINUSOIDAL编码编码和解码音频信号的方法和装置

    公开(公告)号:US20110301961A1

    公开(公告)日:2011-12-08

    申请号:US13201517

    申请日:2010-02-16

    IPC分类号: G10L21/00

    摘要: A method and an apparatus for encoding and decoding audio signals using adaptive sinusoidal coding are provided. The audio signal encoding method includes the steps of dividing a synthesized audio signal into a plurality of sub-bands, calculating the energy of each sub-band, selecting a predetermined number of sub-bands having a relatively large amount of energy from the sub-bands, and performing sinusoidal coding with regard to the selected sub-bands. Application of sinusoidal coding based on consideration of the amount of energy of each sub-band of the synthesized signal improves the quality of the synthesized signal more efficiently.

    摘要翻译: 提供了一种使用自适应正弦编码对音频信号进行编码和解码的方法和装置。 音频信号编码方法包括以下步骤:将合成的音频信号分成多个子带,计算每个子带的能量,从子帧中选择具有相对大量能量的预定数量的子带, 并且对于所选择的子带执行正弦编码。 基于考虑合成信号的每个子带的能量量的正弦编码的应用更有效地提高了合成信号的质量。

    Method and apparatus for encoding and decoding audio signal using adaptive sinusoidal coding
    9.
    发明授权
    Method and apparatus for encoding and decoding audio signal using adaptive sinusoidal coding 有权
    使用自适应正弦编码对音频信号进行编码和解码的方法和装置

    公开(公告)号:US08805694B2

    公开(公告)日:2014-08-12

    申请号:US13201517

    申请日:2010-02-16

    摘要: A method and an apparatus for encoding and decoding audio signals using adaptive sinusoidal coding are provided. The audio signal encoding method includes the steps of dividing a synthesized audio signal into a plurality of sub-bands, calculating the energy of each sub-band, selecting a predetermined number of sub-bands having a relatively large amount of energy from the sub-bands, and performing sinusoidal coding with regard to the selected sub-bands. Application of sinusoidal coding based on consideration of the amount of energy of each sub-band of the synthesized signal improves the quality of the synthesized signal more efficiently.

    摘要翻译: 提供了一种使用自适应正弦编码对音频信号进行编码和解码的方法和装置。 音频信号编码方法包括以下步骤:将合成的音频信号分成多个子带,计算每个子带的能量,从子帧中选择具有相对大量能量的预定数量的子带, 并且对于所选择的子带执行正弦编码。 基于考虑合成信号的每个子带的能量量的正弦编码的应用更有效地提高了合成信号的质量。

    APPARATUS AND METHOD FOR MEASURING VOICE QUALITY OF VoIP TERMINAL USING WIDEBAND VOICE CODEC
    10.
    发明申请
    APPARATUS AND METHOD FOR MEASURING VOICE QUALITY OF VoIP TERMINAL USING WIDEBAND VOICE CODEC 审中-公开
    使用宽带语音编解码器测量VoIP终端语音质量的装置和方法

    公开(公告)号:US20120163214A1

    公开(公告)日:2012-06-28

    申请号:US13333502

    申请日:2011-12-21

    IPC分类号: H04W24/00

    摘要: A method for measuring voice quality in a wireless communication network includes measuring an MOS of a signal using a narrowband voice codec and an MOS of a signal using a wideband voice codec in a cable loopback environment, calculating a wideband voice codec correction coefficient using the measured MOS, measuring an MOS of a signal using the narrowband voice codec and an MOS of a signal using the wideband voice codec in a terminal connection environment; and outputting a value obtained by adding the wideband voice codec correction coefficient to the measured MOS in the terminal connection environment.

    摘要翻译: 一种用于测量无线通信网络中的语音质量的方法包括:在电缆环回环境中使用窄带语音编解码器和使用宽带语音编解码器的信号的MOS测量信号的MOS,使用所测量的宽带语音编解码器校正系数 MOS,在终端连接环境中使用窄带语音编解码器测量信号的MOS信号和使用宽带语音编解码器的信号的MOS; 并且在终端连接环境中输出通过将宽带语音编解码器校正系数与所测量的MOS相加而获得的值。