公开(公告)号：WO2016179382A1

公开(公告)日：2016-11-10

申请号：PCT/US2016/030965

申请日：2016-05-05

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： KIM, Doh-Suk

IPC: H04L29/06 ,  H04L12/26 ,  H03M13/01 ,  H04L1/00

CPC classification number: H04L65/80 ,  H03M13/015 ,  H03M13/63 ,  H04L1/004 ,  H04L41/5067 ,  H04L43/0823 ,  H04L43/0829

Abstract: This disclosure falls into the field of voice communication systems, more specifically it is related to the field of voice quality estimation in a packet based voice communication system. In particular the disclosure provides methods, computer program products and devices for reducing a prediction error of the voice quality estimation by considering forward error correction of lost voice packets.

Abstract translation: 本公开涉及语音通信系统领域，更具体地涉及基于分组的语音通信系统中的语音质量估计领域。 具体地，本公开提供了通过考虑丢失语音分组的前向纠错来减少语音质量估计的预测误差的方法，计算机程序产品和设备。

公开(公告)号：WO2021025946A1

公开(公告)日：2021-02-11

申请号：PCT/US2020/044241

申请日：2020-07-30

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： KIM, Doh-Suk ,  MCCARTHY, Sean Thomas ,  DALY, Scott ,  RIEDMILLER, Jeffrey ,  MALFAIT, Ludovic Christophe ,  ULLMANN, Raphael Marc ,  CLOUD, Jason Michael

IPC: H04L29/06 ,  H04L29/08 ,  H04N21/20

Abstract: A method for delivering media to a playback device including outputting first test media to be viewed by a first user. The method further includes receiving a first user input related to a first perception of the first test media by the first user and indicating a first personalized quality of experience of the first user with respect to the first test media. The method further includes generating a first personalized sensitivity profile including one or more viewing characteristics of the first user based on the first user input, and determining, based at least in part on the first personalized sensitivity profile, a first media parameter. The first media parameter is determined in order to increase an efficiency of media delivery to the first playback device over a network while preserving the first personalized quality of experience of the first user.

公开(公告)号：WO2015195564A1

公开(公告)日：2015-12-23

申请号：PCT/US2015/035855

申请日：2015-06-15

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： KIM, Doh-Suk ,  CATZ, Jean-Francois

IPC: H04M3/22

CPC classification number: H04M3/2236 ,  H04M3/56 ,  H04M3/568

Abstract: A voice quality estimation process may be triggered by receiving one or more alarms corresponding to one or more endpoint terminals being used during a teleconference. The alarm(s) may include uplink transmission alarms, downlink transmission alarms and/or acoustic quality alarms. The alarms may be based on evaluating transmission metrics and/or acoustic quality metrics. The voice quality estimation process may require a relatively greater computational burden than the processes of evaluating the transmission metrics and/or acoustic quality metrics for the purpose of potentially triggering an alarm. The accuracy and computational complexity of voice quality estimation may be adjusted by selecting times during which alarm detection will take place, alarm detector thresholds, alarm analyzer thresholds and/or levels of voice quality estimation.

Abstract translation: 语音质量估计处理可以通过接收与电话会议期间正在使用的一个或多个端点终端相对应的一个或多个警报来触发。 警报可以包括上行链路传输警报，下行链路传输警报和/或声学质量警报。 报警可以基于评估传输度量和/或声学质量度量。 语音质量估计过程可能需要比用于潜在地触发报警的目的来评估传输度量和/或声音质量度量的过程相对更大的计算负担。 可以通过选择发生报警检测的时间，报警检测器阈值，报警分析器阈值和/或语音质量估计级别来调整语音质量估计的准确度和计算复杂度。

公开(公告)号：WO2017127367A1

公开(公告)日：2017-07-27

申请号：PCT/US2017/013806

申请日：2017-01-17

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： KIM, Doh-Suk

IPC: G10L25/60 ,  H04M3/56 ,  H04R29/00

CPC classification number: H04R29/007 ,  G10L25/69 ,  H04M3/2236 ,  H04M3/56 ,  H04R2227/009 ,  H04S2400/15

Abstract: Systems and methods are described for measuring capture performance of multiple voice signals. A first speech signal is applied to a device, and measured at a far-end of a testing environment. A second speech signal is separately applied to the device, and is also measured at the far end. The measured speech signals are added, and a quality assessment model is applied to the first far-end combined signal to obtain a first quality metric. The first speech signal and the second speech signal are then both applied at the same time to the device and measured at the far-end. The quality assessment model is applied to the second far-end combined signal to obtain a second quality metric. The quality metric for the second far-end combined signal is normalized, based on the first quality metric, to obtain a performance index for the device.

Abstract translation: 描述了用于测量多个语音信号的捕获性能的系统和方法。 第一个语音信号被应用于一个设备，并在测试环境的远端进行测量。 第二个语音信号被分别施加到设备上，并且也在远端进行测量。 添加测量的语音信号，并且将质量评估模型应用于第一远端组合信号以获得第一质量度量。 然后将第一语音信号和第二语音信号同时施加到设备并在远端进行测量。 质量评估模型应用于第二远端组合信号以获得第二质量度量。 基于第一质量度量标准化第二远端组合信号的质量度量以获得该设备的性能指数。

公开(公告)号：WO2016103222A2

公开(公告)日：2016-06-30

申请号：PCT/IB2015/059962

申请日：2015-12-23

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： KIM, Doh-Suk ,  HUANG, Shen

IPC: G10L25/60 ,  H04M3/22 ,  H04L12/24 ,  H04L12/26

CPC classification number: H04M3/2236 ,  G10L25/60 ,  H04L43/04 ,  H04L43/0829

Abstract: This disclosure falls into the field of voice communication systems, more specifically it is related to the field of voice quality estimation in a packet based voice communication system. In particular the disclosure provides a method and device for 5 reducing a prediction error of the voice quality estimation by considering the content of lost packets. Furthermore, this disclosure provides a method and device which uses a voice quality estimating algorithm to calculate the voice quality estimate based on an input which is switchable between a first and a second input mode.

Abstract translation: 本公开涉及语音通信系统领域，更具体地涉及基于分组的语音通信系统中的语音质量估计领域。 具体地，本公开提供了一种用于通过考虑丢失分组的内容来减少语音质量估计的预测误差的方法和装置。 此外，本公开提供了一种方法和装置，其使用语音质量估计算法基于可在第一和第二输入模式之间切换的输入来计算语音质量估计。