公开(公告)号：US20140023196A1

公开(公告)日：2014-01-23

申请号：US13945806

申请日：2013-07-18

Applicant: QUALCOMM Incorporated

Inventor： Pei Xiang ,  Dipanjan Sen

IPC: H04S1/00

CPC classification number: H04S1/007 ,  G10L19/008 ,  G10L19/22 ,  G10L19/24 ,  H04S3/008 ,  H04S7/30 ,  H04S2400/03 ,  H04S2400/11 ,  H04S2400/15 ,  H04S2420/03 ,  H04S2420/11

Abstract: In general, techniques are described for grouping audio objects into clusters. In some examples, a device for audio signal processing comprises a cluster analysis module configured to group, based on spatial information for each of N audio objects, a plurality of audio objects that includes the N audio objects into L clusters, where L is less than N, wherein the cluster analysis module is configured to receive information from at least one of a transmission channel, a decoder, and a renderer, and wherein a maximum value for L is based on the information received. The device also comprises a downmix module configured to mix the plurality of audio objects into L audio streams, and a metadata downmix module configured to produce, based on the spatial information and the grouping, metadata that indicates spatial information for each of the L audio streams.

Abstract translation: 一般来说，描述了将音频对象分组成簇的技术。 在一些示例中，用于音频信号处理的设备包括：集群分析模块，被配置为基于N个音频对象中的每一个的空间信息将包括N个音频对象的多个音频对象分组为L个集群，其中L小于 N，其中所述聚类分析模块被配置为从传输信道，解码器和渲染器中的至少一个接收信息，并且其中L的最大值基于所接收的信息。 所述设备还包括被配置为将所述多个音频对象混合成L个音频流的下混模块，以及被配置为基于所述空间信息和所述分组来产生指示每个所述L个音频流的空间信息的元数据的元数据下混模块 。

公开(公告)号：US20130339011A1

公开(公告)日：2013-12-19

申请号：US13840863

申请日：2013-03-15

Applicant: QUALCOMM INCORPORATED

Inventor： Erik Visser ,  Yinyi Guo ,  Lae-Hoon Kim ,  Pei Xiang

IPC: G10L25/90

CPC classification number: G10L25/90 ,  G10H1/0008 ,  G10H1/361 ,  G10H2210/056 ,  G10H2210/066 ,  G10H2210/211 ,  G10H2250/131 ,  G10H2250/215 ,  G10H2250/225 ,  G10H2250/251

Abstract: Systems, methods, and apparatus for pitch trajectory analysis are described. Such techniques may be used to remove vocals and/or vibrato from an audio mixture signal. For example, such a technique may be used to pre-process the signal before an operation to decompose the mixture signal into individual instrument components.

Abstract translation: 描述了用于俯仰轨迹分析的系统，方法和装置。 这样的技术可以用于从音频混合信号中去除声音和/或颤音。 例如，这样的技术可以用于在将混合信号分解成单独的仪器部件的操作之前预处理信号。

公开(公告)号：US20130259254A1

公开(公告)日：2013-10-03

申请号：US13740658

申请日：2013-01-14

Applicant: QUALCOMM INCORPORATED

Inventor： Pei Xiang ,  Lae-Hoon Kim ,  Erik Visser

IPC: G10K11/175

CPC classification number: G10K11/175 ,  G10K11/34 ,  H04K1/02 ,  H04K3/42 ,  H04K3/43 ,  H04K3/45 ,  H04K3/825 ,  H04K2203/12 ,  H04R1/403 ,  H04R3/04 ,  H04R3/12 ,  H04R27/00 ,  H04R2201/403 ,  H04R2203/12

Abstract: A system may be used to drive an array of loudspeakers to produce a sound field that includes a source component, whose energy is concentrated along a first direction relative to the array, and a masking component that is based on an estimated intensity of the source component in a second direction that is different from the first direction.

Abstract translation: 可以使用系统来驱动扬声器阵列以产生声场，该声场包括源分量，其能量沿着相对于阵列的第一方向集中，以及基于源分量的估计强度的掩蔽分量 在与第一方向不同的第二方向上。

公开(公告)号：US20130159552A1

公开(公告)日：2013-06-20

申请号：US13665621

申请日：2012-10-31

Applicant: Qualcomm Incorporated

Inventor： Pei Xiang ,  Hesu Huang ,  Lukai Cai ,  Khaled Helmi El-Maleh

IPC: H04W8/30

CPC classification number: H04W8/30 ,  H04L69/40 ,  H04W4/029 ,  H04W4/18

Abstract: A wireless communication system and related techniques and apparatuses are disclosed that predict future disconnections or other connection impairments with end-user portable devices in advance so that service interruptions can be handled more gracefully. The system can predict the loss of service based on user-usage information associated with the portable device, such as the current GPS location of the device, its direction and velocity of travel, a user calendar, user habits and other information, such as the time of day, weather conditions, or wireless network coverage maps. An impairment handling method is selected that alters the content presented by the portable device. The impairment handling method is executed by the system upon detecting the impairment of the wireless connection so that the content is altered during occurrence of the impairment. The alteration of the content is done to mitigate the user-perceived effect of the impairment.

Abstract translation: 公开了一种无线通信系统以及相关的技术和装置，它们预先预测与终端用户便携式设备的未来断开连接或其他连接损伤，从而可以更加优雅地处理服务中断。 该系统可以基于与便携式设备相关联的用户使用信息来预测服务的丢失，例如设备的当前GPS位置，其行进方向和速度，用户日历，用户习惯和其他信息，诸如 时间，天气状况或无线网络覆盖地图。 选择改变便携式设备呈现的内容的损害处理方法。 在检测到无线连接的损害后，系统执行损害处理方法，使得在损害发生期间改变内容。 内容的改变是为了减轻用户感知到的损害的影响。