公开(公告)号：US20170162212A1

公开(公告)日：2017-06-08

申请号：US15433437

申请日：2017-02-15

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Xuejing SUN ,  Glenn N. DICKINS

IPC: G10L21/0364 ,  G10L21/0224 ,  G10L21/034 ,  H03G3/30 ,  G10L25/78

CPC classification number: G10L21/0364 ,  G10K11/16 ,  G10L21/0224 ,  G10L21/0316 ,  G10L21/034 ,  G10L25/78 ,  H03G3/301 ,  H03G3/32

Abstract: A method, an apparatus, and logic to post-process raw gains determined by input processing to generate post-processed gains, comprising using one or both of delta gain smoothing and decision-directed gain smoothing. The delta gain smoothing comprises applying a smoothing filter to the raw gain with a smoothing factor that depends on the gain delta: the absolute value of the difference between the raw gain for the current frame and the post-processed gain for a previous frame. The decision-directed gain smoothing comprises converting the raw gain to a signal-to-noise ratio, applying a smoothing filter with a smoothing factor to the signal-to-noise ratio to calculate a smoothed signal-to-noise ratio, and converting the smoothed signal-to-noise ratio to determine the second smoothed gain, with smoothing factor possibly dependent on the gain delta.

公开(公告)号：US20160337510A1

公开(公告)日：2016-11-17

申请号：US15109511

申请日：2015-01-06

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Kai LI, I ,  Glenn N. DICKINS ,  Xuejing SUN

IPC: H04M3/22 ,  H04L12/24 ,  G10L25/63 ,  H04M3/56

CPC classification number: H04M3/2227 ,  G10L25/60 ,  G10L25/63 ,  H04L41/5009 ,  H04M3/2236 ,  H04M3/568 ,  H04M3/569 ,  H04M2203/2038

Abstract: In a conference call having a plurality of participants interacting in a conference exchange of information in a digital transmission environment, the interaction being across a variable network transmission resource, a method of allocating the level of transmission resource, the methods including the steps of: (a) monitoring predetermined aspects of the participant's behavior during the conference call; (b) determining a divergence of participants behavior from normative values; (c) utilising any divergence as an indicator of aberrant operation of the participants; and (d) allocating the resource determinative on the divergence of participants behavior from normative values.

Abstract translation: 在具有多个参与者在数字传输环境中的会议信息交换中进行交互的电话会议中，所述交互是跨可变网络传输资源，分配传输资源级别的方法，所述方法包括以下步骤：（ a）在电话会议期间监视参与者行为的预定方面; （b）确定参与者行为与规范价值的差异; （c）利用任何分歧作为参与者异常运作的指标; 和（d）将参与者行为与规范价值观分歧的决定因素分配。

公开(公告)号：US20160035367A1

公开(公告)日：2016-02-04

申请号：US14782746

申请日：2014-03-31

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Erwin GOESNAR ,  Glenn N. DICKINS ,  David GUNAWAN

IPC: G10L21/0232 ,  G10L25/21 ,  G10L25/18

CPC classification number: G10L21/0232 ,  G10L21/0208 ,  G10L25/18 ,  G10L25/21 ,  G10L2021/02082

Abstract: Improved audio data processing method and systems are provided. Some implementations involve dividing frequency domain audio data into a plurality of subbands and determining amplitude modulation signal values for each of the plurality of subbands. A band-pass filter may be applied to the amplitude modulation signal values in each subband, to produce band-pass filtered amplitude modulation signal values for each subband. The band-pass filter may have a central frequency that exceeds an average cadence of human speech. A gain may be determined for each subband based, at least in part, on a function of the amplitude modulation signal values and the band-pass filtered amplitude modulation signal values. The determined gain may be applied to each subband.

Abstract translation: 提供了改进的音频数据处理方法和系统。 一些实施方式涉及将频域音频数据划分成多个子带并且确定多个子带中的每一个的幅度调制信号值。 可以将带通滤波器应用于每个子带中的幅度调制信号值，以产生每个子带的带通滤波的幅度调制信号值。 带通滤波器可以具有超过人类语音的平均节奏的中心频率。 至少部分地基于幅度调制信号值和带通滤波的幅度调制信号值的函数，可以为每个子带确定增益。 确定的增益可以应用于每个子带。