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1. 发明申请

WO2011073735A1 ACTIVITY ACTUATED SPEECH ENHANCEMENT IN MULTI-MICROPHONE TELECONFERENCE SYSTEMS 审中-公开
标题翻译：多麦克风电话系统中的活动激活语音增强
公开(公告)号：WO2011073735A1
公开(公告)日：2011-06-23
申请号：PCT/IB2009/055855
申请日：2009-12-18
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , SANDGREN, Niclas , ERIKSSON, Anders , FALK, Tommy , SANDGREN, Patrik
发明人： SANDGREN, Niclas , ERIKSSON, Anders , FALK, Tommy , SANDGREN, Patrik
IPC分类号： H04R3/02 , H04M3/56
CPC分类号： H04R3/005 , G10L21/0208 , G10L25/78 , H04M3/56 , H04M9/082 , H04R3/02 , H04R2430/20
摘要： A device (330) is provided in a teleconference system (110-1) that includes multiple microphones (340). The device (330) receives information (350) indicating whether a signal (130), received by the teleconference system (110-1 ), is a speech signal or a non-speech signal, and determines a first state (530) when the information indicates that the signal (130) is a speech signal. The device (330) also determine a second state (540) when the information indicates that the signal (130) is a non-speech signal. When the first state (530) is determined, the device (330) fixes gains associated with the multiple microphones (340) to disable adaptive audio capture, end an acoustic echo controller (320) enabled. When the second state (540) is determined, the device (330) varies the gains associated with the multiple microphones (340) to enable adaptive audio capture, end the acoustic echo controller (320) is disabled.
摘要翻译：在包括多个麦克风（340）的电话会议系统（110-1）中提供设备（330）。设备（330）接收指示由电话会议系统（110-1）接收的信号（130-1）是语音信号还是非语音信号的信息（350），并且当确定第一状态（530）时信息表示信号（130）是语音信号。当信息指示信号（130）是非语音信号时，设备（330）还确定第二状态（540）。当确定第一状态（530）时，设备（330）固定与多个麦克风（340）相关联的增益以禁用自适应音频捕获，结束启用的声学回声控制器（320）。当确定第二状态（540）时，设备（330）改变与多个麦克风（340）相关联的增益，以实现自适应音频捕获，使声学回波控制器（320）结束被禁用。

2. 发明申请

WO2008143561A1 METHODS AND ARRANGEMENTS FOR GROUP SOUND TELECOMMUNICATION 审中-公开
标题翻译：集体声音通信的方法和安排
公开(公告)号：WO2008143561A1
公开(公告)日：2008-11-27
申请号：PCT/SE2007/050344
申请日：2007-05-22
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , SANDGREN, Patrik , ERIKSSON, Anders , FALK, Tommy
发明人： SANDGREN, Patrik , ERIKSSON, Anders , FALK, Tommy
IPC分类号： H04M3/56 , H04N7/15 , H04S3/00
CPC分类号： H04M3/56 , H04M3/568 , H04N7/15 , H04S7/302 , H04S2400/11 , H04S2420/01
摘要： A method of audio scene management in a teleconference or other group sound telecommunication is presented, in which teleconference at least a first transmitting party, a second transmitting party and a receiving party participates. The method comprises receiving (210) of signals representing sound of the first transmitting party and sound of the second transmitting party. The method further comprises obtaining (212) of measures of sound activity for the first and second transmitting parties, respectively and selecting (214) a first angle and/ or a second angle based on the obtained measures of sound activity. The method further comprises processing (216) of the received signals into processed signals such that sound from the first transmitting party is experienced by the receiving party as emanating from the first angle while sound from the second transmitting party is experienced as emanating from the second angle, with respect to the receiving party. Finally signals representing the processed signals are outputted (218).
摘要翻译：提出了电话会议或其他组声音通信中的音频场景管理的方法，其中至少第一发送方，第二发送方和接收方的电话会议参与。该方法包括接收表示第一发送方的声音和第二发送方的声音的信号（210）。该方法还包括分别获得（212）对第一和第二发送方的声音活动的度量，并且基于获得的声音活动度量选择（214）第一角度和/或第二角度。该方法还包括将接收到的信号处理（216）为经处理的信号，使得来自第一发送方的声音由接收方经历，从第一角度发出，而来自第二发送方的声音被从第二角度发出对于接收方。最后输出表示经处理的信号的信号（218）。

3. 发明申请

WO2009127515A1 APPARATUS AND METHOD FOR PRODUCING 3D AUDIO IN SYSTEMS WITH CLOSELY SPACED SPEAKERS 审中-公开
标题翻译：用于在具有空间间隔扬声器的系统中生产3D音频的装置和方法
公开(公告)号：WO2009127515A1
公开(公告)日：2009-10-22
申请号：PCT/EP2009/053792
申请日：2009-03-31
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , KARLSSON, Erlendur , SANDGREN, Patrik
发明人： KARLSSON, Erlendur , SANDGREN, Patrik
IPC分类号： H04S1/00 , H04S7/00
CPC分类号： H04S1/00 , H04R2499/11 , H04S7/30 , H04S2420/01
摘要： An audio processing circuit includes a crosstalk cancellation circuit that is advantageously simplified for use in audio devices that have closely-spaced speakers. In particular, crosstalk filtering as implemented in the circuit assumes that the external head-related contralateral filters are time-delayed and attenuated versions of the external, head-related ipsilateral filters. With this assumption, the circuit's crosstalk filtering is configurable for varying audio characteristics, according to a small number of settable parameters. These parameters include configurable first and second attenuation parameters for cross-path signal attenuation, and configurable first and second delay parameters for cross-path delay. Optional sound normalization, if included, uses similar simplified parameterization. Further, in one or more embodiments, the audio processing circuit and method include or are associated with a defined table of parameters that are least-squares optimized solutions. The optimized parameter values provide wider listening sweet spots for a greater variety of listeners.
摘要翻译：音频处理电路包括有利地简化为用于具有紧密间隔的扬声器的音频设备的串扰消除电路。特别地，在电路中实现的串扰滤波假设外部头部相关对侧滤波器是外部头部相关同侧滤波器的时间延迟和衰减版本。根据这个假设，电路的串扰滤波可以根据少数的可设置参数进行配置以改变音频特性。这些参数包括用于交叉路径信号衰减的可配置的第一和第二衰减参数，以及用于交叉路径延迟的可配置的第一和第二延迟参数。可选的声音归一化（如果包括在内）使用类似的简化参数化。此外，在一个或多个实施例中，音频处理电路和方法包括或者与最小二乘优化解决方案的规定的参数表相关联。优化的参数值为更多种类的听众提供更广泛的聆听甜点。

4. 发明申请

WO2008135310A2 EARLY REFLECTION METHOD FOR ENHANCED EXTERNALIZATION 审中-公开
标题翻译：增强外部化的早期反射方法
公开(公告)号：WO2008135310A2
公开(公告)日：2008-11-13
申请号：PCT/EP2008053347
申请日：2008-03-20
申请人： ERICSSON TELEFON AB L M , SANDGREN PATRIK , ERIKSSON ANDERS , KARLSSON ERLENDUR
发明人： SANDGREN PATRIK , ERIKSSON ANDERS , KARLSSON ERLENDUR
IPC分类号： H04S1/00
CPC分类号： H04S1/005 , G10K15/08 , H04R5/04 , H04S3/004 , H04S5/00 , H04S2420/01
摘要： Scenes having at least one simulated sound source and simulated sound- reflecting objects are simulated by processing a direct-sound signal with at least one head-related transfer-function, thereby generating a simulated direct-sound signal, and generating simulated early-reflection signals from the simulated direct-sound signal, including simulating early reflections having incidence angles different from the incidence angle of the direct-sound signal. Externalization of the simulated sound source is enhanced.
摘要翻译：具有至少一个模拟声源和模拟声音反射对象的场景通过利用至少一个头部相关传递函数处理直接声音信号来模拟，从而生成模拟直接声音信号并且生成模拟早期反射信号从模拟的直接声音信号，包括模拟具有与直接声音信号的入射角不同的入射角的早期反射。模拟声源的外化增强。

5. 发明申请

WO2010040408A1 A COMMON SCENE BASED CONFERENCE SYSTEM 审中-公开
标题翻译：基于通用场景的会议系统
公开(公告)号：WO2010040408A1
公开(公告)日：2010-04-15
申请号：PCT/EP2008/063536
申请日：2008-10-09
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , ERIKSSON, Anders , FALK, Tommy , SANDGREN, Patrik
发明人： ERIKSSON, Anders , FALK, Tommy , SANDGREN, Patrik
IPC分类号： H04S7/00 , H04M3/56
CPC分类号： H04S7/30 , H04M3/56 , H04S2400/11
摘要： Conference bridge (1) for managing an audio scene comprising two or more participants, the conference bridge comprising a mixer (2) and several user channels (3a, 3b, 3N). The conference bridge is arranged to continuously create a 3D positional audio environment signal for each participant as a listening participant, by rendering the speech of each participant as a 3D positioned virtual sound source and excluding the speech of the listening participant, and to distribute each created 3D positional audio environment signal to the corresponding listening participant. Further, the conference bridge is arranged to place the virtual sound source corresponding to each participant at the same spatial position relative the listening participant in every created 3D positional audio environment.
摘要翻译：会议桥（1），用于管理包括两个或多个参与者的音频场景，所述会议桥包括混合器（2）和多个用户通道（3a，3b，3N）。会议桥被布置为通过将每个参与者的语音渲染为3D定位的虚拟声源并排除听众参与者的语音，并且分发每个创建的会话桥，每个参与者作为聆听参与者持续创建3D位置音频环境信号 3D位置音频环境信号到相应的听力参与者。此外，会议桥被布置成在每个创建的3D位置音频环境中将与每个参与者对应的虚拟声源相对于聆听参与者放置在相同的空间位置。

6. 发明申请

WO2008135310A3 EARLY REFLECTION METHOD FOR ENHANCED EXTERNALIZATION 审中-公开
公开(公告)号：WO2008135310A3
公开(公告)日：2008-11-13
申请号：PCT/EP2008/053347
申请日：2008-03-20
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , SANDGREN, Patrik , ERIKSSON, Anders , KARLSSON, Erlendur
发明人： SANDGREN, Patrik , ERIKSSON, Anders , KARLSSON, Erlendur
IPC分类号： H04S1/00 , G10K15/08 , H04S3/00 , H04S5/00 , H04R5/04
摘要： Scenes having at least one simulated sound source and simulated sound- reflecting objects are simulated by processing a direct-sound signal with at least one head-related transfer-function, thereby generating a simulated direct-sound signal, and generating simulated early-reflection signals from the simulated direct-sound signal, including simulating early reflections having incidence angles different from the incidence angle of the direct-sound signal. Externalization of the simulated sound source is enhanced.

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