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公开(公告)号：EP3430621B1
公开(公告)日：2020-09-16
申请号：EP17714985.3
申请日：2017-03-17
IPC分类号： G10L19/008 , G10L19/002 , G10L19/22
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公开(公告)号：EP3692527A1
公开(公告)日：2020-08-12
申请号：EP18792712.4
申请日：2018-10-01
IPC分类号： G10L19/008 , G10L19/22 , G10L21/038
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公开(公告)号：EP3472833B1
公开(公告)日：2020-07-08
申请号：EP17731782.3
申请日：2017-06-13
IPC分类号： G10L19/008 , G10L19/22 , G10L19/002
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公开(公告)号：EP3430623B1
公开(公告)日：2020-01-01
申请号：EP17715567.8
申请日：2017-03-17
IPC分类号： G10L19/022 , G10L19/008
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公开(公告)号：EP3394854A1
公开(公告)日：2018-10-31
申请号：EP16826221.0
申请日：2016-12-09
IPC分类号： G10L19/008
CPC分类号： G10L19/008 , G10L19/025 , G10L19/167 , H04W88/02 , H04W88/08
摘要： A method of wireless communication includes receiving, at a first device, a reference channel and a target channel. The reference channel includes a set of reference samples, and target channel includes a set of target samples. The method also includes determining a variation between a first mismatch value and a second mismatch value. The method also includes adjusting the set of target samples based on the variation to generate an adjusted set of target samples. The method further includes generating at least one encoded channel based on the set of reference samples and the adjusted set of target samples. The method also includes transmitting the at least one encoded channel to a second device.
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公开(公告)号：EP3161825B1
公开(公告)日：2018-07-18
申请号：EP15731780.1
申请日：2015-06-05
发明人： ATTI, Venkatraman S. , KRISHNAN, Venkatesh , RAJENDRAN, Vivek , CHEBIYYAM, Venkata Subrahmanyam Chandra Sekhar , SUBASINGHA, Subasingha Shaminda
IPC分类号： G10L21/038 , G10L19/24 , G10L19/02 , G10L19/06
CPC分类号： G10L19/12 , G10L19/0204 , G10L19/032 , G10L19/06 , G10L19/24 , G10L21/0224 , G10L21/038 , G10L25/12 , G10L2019/0016
摘要： The present disclosure provides techniques for adjusting a temporal gain parameter and for adjusting linear prediction coefficients. A value of the temporal gain parameter may be based on a comparison of a synthesized high-band portion of an audio signal to a high-band portion of the audio signal. If a signal characteristic of an upper frequency range of the high-band portion satisfies a first threshold, the temporal gain parameter may be adjusted. A linear prediction (LP) gain may be determined based on an LP gain operation that uses a first value for an LP order. The LP gain may be associated with an energy level of an LP synthesis filter. The LP order may be reduced if the LP gain satisfies a second threshold.
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公开(公告)号：EP3284088A1
公开(公告)日：2018-02-21
申请号：EP16711099.8
申请日：2016-03-10
发明人： SUBASINGHA, Subasingha Shaminda , RAJENDRAN, Vivek , DEWASURENDRA, Duminda , POLISETTY, Chandra Mouli , ATTI, Venkatraman S. , CHEBIYYAM, Venkata Subrahmanyam Chandra Sekhar
CPC分类号： H04L49/90 , G10L19/167 , H04J3/0632 , H04J3/0664 , H04L7/0016 , H04L12/56 , H04L43/106 , H04L65/601 , H04L65/607 , H04L65/608
摘要： A device includes a de-jitter buffer configured to receive a packet, the packet including first data and second data. The first data includes a partial copy of first frame data corresponding to a first frame of a sequence of frames. The second data corresponds to a second frame of the sequence of frames. The device also includes an analyzer configured to, in response to receiving the packet, generate a first frame receive timestamp associated with the first data. The analyzer is also configured to, in response to receiving the packet, generate a second frame receive timestamp associated with the second data. The first frame receive timestamp indicates a first time that is earlier than a second time indicated by the second frame receive timestamp.
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公开(公告)号：EP3161823A1
公开(公告)日：2017-05-03
申请号：EP15729725.0
申请日：2015-06-05
发明人： ATTI, Venkatraman S. , KRISHNAN, Venkatesh , RAJENDRAN, Vivek , CHEBIYYAM, Venkata Subrahmanyam Chandra Sekhar , SUBASINGHA, Subasingha Shaminda
IPC分类号： G10L19/06 , G10L19/02 , G10L19/24 , G10L21/038
CPC分类号： G10L19/12 , G10L19/0204 , G10L19/032 , G10L19/06 , G10L19/24 , G10L21/0224 , G10L21/038 , G10L25/12 , G10L2019/0016
摘要： The present disclosure provides techniques for adjusting a temporal gain parameter and for adjusting linear prediction coefficients. A value of the temporal gain parameter may be based on a comparison of a synthesized high-band portion of an audio signal to a high-band portion of the audio signal. If a signal characteristic of an upper frequency range of the high-band portion satisfies a first threshold, the temporal gain parameter may be adjusted. A linear prediction (LP) gain may be determined based on an LP gain operation that uses a first value for an LP order. The LP gain may be associated with an energy level of an LP synthesis filter. The LP order may be reduced if the LP gain satisfies a second threshold.
摘要翻译： 本公开提供了用于调整时间增益参数和用于调整线性预测系数的技术。 时间增益参数的值可以基于音频信号的合成高带部分与音频信号的高带部分的比较。 如果高频带部分的较高频率范围的信号特征满足第一阈值，则可以调整时间增益参数。 线性预测（LP）增益可以基于对LP命令使用第一值的LP增益操作来确定。 LP增益可以与LP合成滤波器的能量水平相关联。 如果LP增益满足第二阈值，则可以减少LP命令。
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10.发明公开
公开(公告)号：EP3055860A1
公开(公告)日：2016-08-17
申请号：EP14790439.5
申请日：2014-10-08
IPC分类号： G10L19/02 , G10L19/04 , G10L21/038
摘要： A method includes determining, at a speech encoder, first gain shape parameters based on a harmonically extended signal and/or based on a high-band residual signal associated with a high-band portion of an audio signal. The method also includes determining second gain shape parameters based on a synthesized high-band signal and based on the high-band portion of the audio signal. The method further includes inserting the first gain parameters and the second 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.
摘要翻译： 一种方法包括在语音编码器处基于谐波扩展信号和/或基于与音频信号的高频带部分相关联的高频带残留信号来确定第一增益形状参数。 该方法还包括基于合成的高频带信号并基于音频信号的高频带部分来确定第二增益形状参数。 该方法还包括将第一增益参数和第二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。
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