公开(公告)号：US20170125029A1

公开(公告)日：2017-05-04

申请号：US15263994

申请日：2016-09-13

Applicant: QUALCOMM Incorporated

Inventor： Venkatraman Atti ,  Daniel Jared Sinder ,  Vivek Rajendran ,  Subasingha Shaminda Subasingha

IPC: G10L19/16 ,  G10L19/07 ,  G10L19/005

CPC classification number: G10L19/167 ,  G10L19/005 ,  G10L19/018 ,  H04L1/0014 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/007 ,  H04L1/0083 ,  H04L1/08 ,  H04L12/66

Abstract: In a particular aspect, an apparatus includes a first network interface. The first network interface is configured to receive a packet via a packet-switched network. The packet may include a primary coding of a first audio frame and a redundant coding of a second audio frame. The apparatus further includes a processor. The processor is configured to generate a modified packet that includes one or more bits that indicate signaling information or packet decoding information. The signaling information or packet decoding information may correspond to decoding of at least one of the primary coding or the redundant coding. The apparatus further includes a second network interface configured to transmit the modified packet via a circuit-switched network.

公开(公告)号：US20160323425A1

公开(公告)日：2016-11-03

申请号：US14861131

申请日：2015-09-22

Applicant: QUALCOMM Incorporated

Inventor： Roozbeh Atarius ,  Alireza Ryan Heidari ,  Min Wang ,  Daniel Jared Sinder ,  John Wallace Nasielski ,  Vivek Rajendran

IPC: H04L29/08 ,  G10L19/16 ,  G10L19/005 ,  H04W76/04

CPC classification number: H04L69/324 ,  G10L19/005 ,  G10L19/012 ,  G10L19/167 ,  G10L19/173 ,  G10L19/24 ,  H04W76/28 ,  H04W84/042

Abstract: In various aspects, the disclosure provides for Enhanced Voice Services (EVS) encoding, including encoding an audio signal to obtain an encoded audio signal and a bitrate associated with the encoded audio signal; establishing a source format for the encoded audio signal based on the bitrate; reformatting the encoded audio signal with a pre-selected pattern to generate a packet, wherein a capacity of the packet is based on the source format. And, in various other aspects, the disclosure provides for EVS decoding, including obtaining a data rate associated with a packet; discarding one or more pre-selected patterns from the packet to recover an encoded audio signal based on the data rate; and decoding the encoded audio signal to generate a decoded audio signal.

Abstract translation: 在各方面，本公开提供增强语音服务（EVS）编码，包括对音频信号进行编码以获得编码音频信号和与编码音频信号相关联的比特率; 基于比特率建立编码音频信号的源格式; 以预先选择的模式重新格式化编码音频信号以生成分组，其中分组的容量基于源格式。 并且，在各种其他方面，本公开提供EVS解码，包括获得与分组相关联的数据速率; 从分组丢弃一个或多个预先选择的模式，以基于数据速率恢复编码的音频信号; 并对编码的音频信号进行解码以产生解码的音频信号。

公开(公告)号：US20160293177A1

公开(公告)日：2016-10-06

申请号：US15083633

申请日：2016-03-29

Applicant: QUALCOMM Incorporated

Inventor： Venkata Subrahmanyam Chandra Sekhar Chebiyyam ,  Venkatraman S. Atti ,  Vivek Rajendran

IPC: G10L19/26 ,  G10L19/032 ,  G10L19/06

CPC classification number: G10L19/26 ,  G10L19/005 ,  G10L19/0208 ,  G10L19/032 ,  G10L19/06 ,  G10L21/038

Abstract: A device including gain shape circuitry configured to determine a number of sub-frames of multiple sub-frames that are saturated, the multiple sub-frames included in a frame of a high band audio signal. The device also includes gain frame circuitry configured to determine, based on the number of sub-frames that are saturated, a gain frame parameter corresponding to the frame.

Abstract translation: 一种包括增益形状电路的装置，被配置为确定包含在高频带音频信号的帧中的多个子帧饱和的多个子帧的子帧的数量。 该设备还包括增益帧电路，其被配置为基于饱和的子帧的数量来确定对应于该帧的增益帧参数。

公开(公告)号：US20160036560A1

公开(公告)日：2016-02-04

申请号：US14809085

申请日：2015-07-24

Applicant: QUALCOMM Incorporated

Inventor： Venkatesh Krishnan ,  Vivek Rajendran ,  Sandip Sarkar ,  Subasingha Shaminda Subasingha ,  Venkatraman S. Atti

IPC: H04L1/00 ,  H04L1/08

CPC classification number: H04L1/08 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/008 ,  H04L1/1812 ,  H04L1/1835

Abstract: A device includes a receiver, a buffer, and an analyzer. The receiver is configured to receive packets that correspond to at least a subset of a sequence of packets and that include error correction data. The error correction data of a first packet of the packets includes a partial copy of a second packet. The buffer is configured to store the packets. The analyzer is configured to determine whether a first particular packet of the sequence is missing from the buffer, to determine whether a partial copy of the first particular packet is stored in the buffer as error correction data in a second particular packet, to update a value based at least in part on whether the first particular packet is missing from the buffer and the partial copy of the first particular packet is stored in the buffer, and to adjust an error recovery parameter based at least in part on the value.

Abstract translation: 一种设备包括接收器，缓冲器和分析器。 接收器被配置为接收对应于分组序列的至少一个子集并且包括纠错数据的分组。 分组的第一分组的纠错数据包括第二分组的部分副本。 缓冲区被配置为存储数据包。 分析器被配置为确定序列的第一特定分组是否从缓冲器丢失，以确定第一特定分组的部分副本是否作为第二特定分组中的纠错数据存储在缓冲器中，以更新值 至少部分地基于第一特定分组是否从缓冲器丢失，并且第一特定分组的部分副本被存储在缓冲器中，并且至少部分地基于该值来调整错误恢复参数。

公开(公告)号：US20140236588A1

公开(公告)日：2014-08-21

申请号：US14016004

申请日：2013-08-30

Applicant: QUALCOMM Incorporated

Inventor： Subasingha Shaminda Subasingha ,  Venkatesh Krishnan ,  Vivek Rajendran

IPC: G10L19/02

CPC classification number: G10L19/02 ,  G10L19/005 ,  G10L19/04 ,  G10L19/06 ,  G10L19/07

Abstract: A method for mitigating potential frame instability by an electronic device is described. The method includes obtaining a frame subsequent in time to an erased frame. The method also includes determining whether the frame is potentially unstable. The method further includes applying a substitute weighting value to generate a stable frame parameter if the frame is potentially unstable.

Abstract translation: 描述了一种用于减轻电子设备的可能的帧不稳定性的方法。 该方法包括在擦除的帧中获得随后的帧。 该方法还包括确定帧是否潜在地不稳定。 所述方法还包括如果所述帧潜在地不稳定则应用替代加权值以产生稳定的帧参数。

公开(公告)号：US20140236585A1

公开(公告)日：2014-08-21

申请号：US14015996

申请日：2013-08-30

Applicant: QUALCOMM Incorporated

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

IPC: G10L13/02

CPC classification number: G10L13/02 ,  G10L19/005 ,  G10L19/10 ,  G10L25/90

Abstract: A method for determining pitch pulse period signal boundaries by an electronic device is described. The method includes obtaining a signal. The method also includes determining a first averaged curve based on the signal. The method further includes determining at least one first averaged curve peak position based on the first averaged curve and a threshold. The method additionally includes determining pitch pulse period signal boundaries based on the at least one first averaged curve peak position. The method also includes synthesizing a speech signal.

Abstract translation: 描述了一种通过电子设备确定音调脉冲周期信号边界的方法。 该方法包括获得信号。 该方法还包括基于该信号来确定第一平均曲线。 该方法还包括基于第一平均曲线和阈值确定至少一个第一平均曲线峰值位置。 该方法还包括基于至少一个第一平均曲线峰值位置来确定音调脉冲周期信号边界。 该方法还包括合成语音信号。

公开(公告)号：US20140236584A1

公开(公告)日：2014-08-21

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: G10L19/032

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。

公开(公告)号：US20140236583A1

公开(公告)日：2014-08-21

申请号：US14015834

申请日：2013-08-30

Applicant: QUALCOMM Incorporated

Inventor： Vivek Rajendran ,  Subasingha Shaminda Subasingha ,  Venkatesh Krishnan

IPC: G10L19/07 ,  G10L13/02 ,  G10L19/02

CPC classification number: G10L19/07 ,  G10L19/005

Abstract: A method for determining an interpolation factor set by an electronic device is described. The method includes determining a value based on a current frame property and a previous frame property. The method also includes determining whether the value is outside of a range. The method further includes determining an interpolation factor set based on the value and a prediction mode indicator if the value is outside of the range. The method additionally includes synthesizing a speech signal.

Abstract translation: 描述用于确定由电子设备设置的内插因子的方法。 该方法包括基于当前帧属性和先前帧属性来确定值。 该方法还包括确定该值是否在范围之外。 该方法还包括：如果该值在该范围之外，则基于该值确定内插因子集和预测模式指示符。 该方法还包括合成语音信号。

公开(公告)号：US20140229171A1

公开(公告)日：2014-08-14

申请号：US13959188

申请日：2013-08-05

Applicant: Qualcomm Incorporated

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

IPC: G10L19/03

CPC classification number: G10L19/03 ,  G10L19/07 ,  G10L19/24 ,  G10L21/0208 ,  G10L21/0216 ,  G10L21/0388

Abstract: A particular method includes determining, based on spectral information corresponding to an audio signal that includes a low-band portion and a high-band portion, that the audio signal includes a component corresponding to an artifact-generating condition. The method also includes filtering the high-band portion of the audio signal and generating an encoded signal. Generating the encoded signal includes determining gain information based on a ratio of a first energy corresponding to filtered high-band output to a second energy corresponding to the low-band portion to reduce an audible effect of the artifact-generating condition.

Abstract translation: 特定方法包括基于与包括低频带部分和高频带部分的音频信号相对应的频谱信息来确定音频信号包括对应于假象产生条件的分量。 该方法还包括对音频信号的高频带部分进行滤波并产生编码信号。 生成编码信号包括基于与经滤波的高频带输出相对应的第一能量与对应于低频带部分的第二能量的比率确定增益信息，以减少伪影产生条件的可听见的影响。

公开(公告)号：US20130191121A1

公开(公告)日：2013-07-25

申请号：US13743797

申请日：2013-01-17

Applicant: Qualcomm Incorporated

Inventor： Vivek Rajendran ,  Venkatesh Krishnan

IPC: G10L19/00

CPC classification number: G10L19/00 ,  G10L19/005 ,  G10L19/09 ,  G10L19/10 ,  G10L19/12 ,  G10L19/22 ,  G10L25/21

Abstract: A method for redundant frame coding by an electronic device is described. The method includes determining an adaptive codebook energy and a fixed codebook energy based on a frame. The method also includes coding a redundant version of the frame based on the adaptive codebook energy and the fixed codebook energy. The method further includes sending a subsequent frame.

Abstract translation: 描述用于电子设备的冗余帧编码的方法。 该方法包括基于帧确定自适应码本能量和固定码本能量。 该方法还包括基于自适应码本能量和固定码本能量对帧的冗余版本进行编码。 该方法还包括发送后续帧。