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公开(公告)号：EP2013870A1
公开(公告)日：2009-01-14
申请号：EP07760980.8
申请日：2007-04-20
IPC分类号： G10L21/02
CPC分类号： G06K9/6243 , G10L21/0272
摘要： This disclosure describes signal processing techniques that can improve the performance of blind source separation (BSS) techniques. In particular, the described techniques propose pre-processing steps that can help to de-correlate the different signals from one another prior to execution of the BSS techniques. In addition, the described techniques also propose optional post-processing steps that can further de-correlate the different signals following execution of the BSS techniques. The techniques may be particularly useful for improving BSS performance with highly correlated audio signals, e.g., from two microphones that are in close spatial proximity to one another.
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公开(公告)号：EP2392150A1
公开(公告)日：2011-12-07
申请号：EP10701425.0
申请日：2010-01-21
摘要： A sensor is configured to determine at least one operating condition of a device and a selector is configured to select an audio coding process for the device, based on the operating condition. The operating condition may include remaining battery life of the device and/or ambient noise level. The selected audio coding process may consume less power than another possible audio coding process during audio processing. The audio may include voice and/or audio playback, e.g., music playback.
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公开(公告)号：EP2392150B1
公开(公告)日：2020-03-11
申请号：EP10701425.0
申请日：2010-01-21
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公开(公告)号：EP2181444A1
公开(公告)日：2010-05-05
申请号：EP08796331.0
申请日：2008-07-18
发明人： RYU, Sang-Uk , CHOY, Eddie, L.T. , KAMATH, Nidish, Ramachandra , GUPTA, Samir, Kumar , DEVALAPALLI, Suresh
CPC分类号： G10L19/16 , G10L19/0212
摘要： A unified filter bank for performing signal conversions may include an interface that receives signal conversion commands in relation to multiple types of compressed audio bitstreams. The unified filter bank may also include a reconfigurable transform component that performs a transform as part of signal conversion for the multiple types of compressed audio bitstreams. The unified filter bank may also include complementary modules that perform complementary processing as part of the signal conversion for the multiple types of compressed audio bitstreams. The unified filter bank may also include an interface command controller that controls the configuration of the reconfigurable transform component and the complementary modules.
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公开(公告)号：EP2126895A1
公开(公告)日：2009-12-02
申请号：EP08714257.6
申请日：2008-03-17
发明人： KAMATH, Nidish, Ramachandra , CHOY, Eddie, L.T. , KULKARNI, Prajakt, V. , GUPTA, Samir, Kumar , MOLLOY, Stephen , DEVALAPALLI, Suresh
IPC分类号： G10H7/00
CPC分类号： G10H7/004 , G10H1/0066 , G10H2230/031 , G10H2250/541
摘要： This disclosure describes techniques that make use of a plurality of hardware elements that operate simultaneously to service synthesis parameters generated from one or more audio files, such as musical instrument digital interface (MIDI) files. In one example, a method comprises storing audio synthesis parameters generated for one or more audio files of an audio frame, processing a first audio synthesis parameter using a first audio processing element of a hardware unit to generate first audio information, processing a second audio synthesis parameter using a second audio processing element of the hardware unit to generate second audio information, and generating audio samples for the audio frame based at least in part on a combination of the first and second audio information.
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