专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20190172472A1 Methods, Apparatus and Systems for Determining Reconstructed Audio Signal 审中-公开
公开(公告)号：US20190172472A1
公开(公告)日：2019-06-06
申请号：US16268448
申请日：2019-02-05
申请人： Dolby Laboratories Licensing Corporation
发明人： Michael M. Truman , Mark S. Vinton
IPC分类号： G10L19/02 , G10L21/0388 , G10L19/16 , G10L19/26 , G10L19/002 , G10L21/00 , G10L19/06 , G10L19/028 , G10L19/00 , G10L19/03 , G10L19/012 , G10L21/038
CPC分类号： G10L19/0208 , G10L19/0017 , G10L19/002 , G10L19/012 , G10L19/02 , G10L19/0204 , G10L19/0212 , G10L19/028 , G10L19/03 , G10L19/06 , G10L19/16 , G10L19/167 , G10L19/173 , G10L19/26 , G10L19/265 , G10L21/00 , G10L21/038 , G10L21/0388
摘要： According to an aspect of the present invention, a method for reconstructing an audio signal having a baseband portion and a highband portion is disclosed. The method includes obtaining a decoded baseband audio signal by decoding an encoded audio signal and obtaining a plurality of subband signals by filtering the decoded baseband audio signal. The method further includes generating a high-frequency reconstructed signal by copying a number of consecutive subband signals of the plurality of subband signals and obtaining an envelope adjusted high-frequency signal. The method further includes generating a noise component based on a noise parameter. Finally, the method includes adjusting a phase of the high-frequency reconstructed signal and obtaining a time-domain reconstructed audio signal by combining the decoded baseband audio signal and the combined high-frequency signal to obtain a time-domain reconstructed audio signal.

2. 发明申请

US20180220255A1 GAME STREAMING WITH SPATIAL AUDIO 审中-公开
公开(公告)号：US20180220255A1
公开(公告)日：2018-08-02
申请号：US15420840
申请日：2017-01-31
申请人： Microsoft Technology Licensing, LLC
发明人： Ryan Y. Kim , Todd R. Manion , Robert N. Heitkamp , Steven Wilssens , Philip A. Edry
IPC分类号： H04S7/00 , G10L19/16 , A63F13/28
CPC分类号： H04S7/308 , A63F13/25 , A63F13/28 , A63F13/355 , A63F13/54 , G10L19/008 , G10L19/167 , G10L19/173 , H04N21/4781 , H04S7/30 , H04S2400/11 , H04S2420/01 , H04S2420/11
摘要： A game engine may generate video and audio content on a per-frame basis. Audio data corresponding to a current frame may be generated to comprise sound-field information independent of a speaker configuration or spatialization technology that may be used to play the associated audio. The sound-field may be generated based on monaural audio data corresponding to a sound produced by an in-game object at the object's position as of the current frame. The sound-field information may be transmitted to a remote computing device for reproduction using a selected, available speaker configuration and spatialization technology.

3. 发明授权

US09947328B2 Methods, apparatus and systems for determining reconstructed audio signal 有权
公开(公告)号：US09947328B2
公开(公告)日：2018-04-17
申请号：US15702451
申请日：2017-09-12
申请人： Dolby Laboratories Licensing Corporation
发明人： Michael M. Truman , Mark S. Vinton
IPC分类号： G10L21/038 , G10L21/0388 , G10L19/02 , G10L19/028 , G10L19/26
CPC分类号： G10L19/0208 , G10L19/0017 , G10L19/002 , G10L19/012 , G10L19/02 , G10L19/0204 , G10L19/0212 , G10L19/028 , G10L19/03 , G10L19/06 , G10L19/16 , G10L19/167 , G10L19/173 , G10L19/26 , G10L19/265 , G10L21/00 , G10L21/038 , G10L21/0388
摘要： According to an aspect of the present invention, a method for reconstructing an audio signal having a baseband portion and a highband portion is disclosed. The method includes obtaining a decoded baseband audio signal by decoding an encoded audio signal and obtaining a plurality of subband signals by filtering the decoded baseband audio signal. The method further includes generating a high-frequency reconstructed signal by copying a number of consecutive subband signals of the plurality of subband signals and obtaining an envelope adjusted high-frequency signal. The method further includes generating a noise component based on a noise parameter. Finally, the method includes adjusting a phase of the high-frequency reconstructed signal and obtaining a time-domain reconstructed audio signal by combining the decoded baseband audio signal and the combined high-frequency signal to obtain a time-domain reconstructed audio signal.

4. 发明申请

US20170243595A1 ENCODING AND DECODING OF AUDIO SIGNALS 审中-公开
公开(公告)号：US20170243595A1
公开(公告)日：2017-08-24
申请号：US15519007
申请日：2015-10-23
申请人： DOLBY INTERNATIONAL AB
发明人： Kristofer KJOERLING , Alexander GROESCHEL , Heiko PURNHAGEN , Holger HOERICH , Kurt KRAUSS
IPC分类号： G10L19/16 , H04N21/234 , H04N21/233 , G10L19/022
CPC分类号： G10L19/173 , G10L19/022 , G10L19/167 , H04N21/2335 , H04N21/23418
摘要： An audio signal (X) is represented by a bitstream (B) segmented into frames. An audio processing system (500) comprises a buffer (510) and a decoding section (520). The buffer joins sets of audio data (D1; D2, . . . , DN) carried by N respective frames (F1, F2, . . . , FN) into one decodable set of audio data (D) corresponding to a first frame rate and to a first number of samples of the audio signal per frame. The frames have a second frame rate corresponding to a second number of samples of the audio signal per frame. The first number of samples is N times the second number of samples. The decoding section decodes the decodable set of audio data into a segment of the audio signal by at least employing signal synthesis, based on the decodable set of audio data, with a stride corresponding to the first number of samples of the audio signal.

5. 发明申请

US20170235543A1 AUDIO TRANSMITTER AND RECEIVER 审中-公开
公开(公告)号：US20170235543A1
公开(公告)日：2017-08-17
申请号：US15429140
申请日：2017-02-09
申请人： Stéphanie England
发明人： Stéphanie England
IPC分类号： G06F3/16 , G10L19/00 , G10L19/16
CPC分类号： G06F3/165 , G06F3/167 , G10L19/0017 , G10L19/173
摘要： Disclosed herein is an audio transmitter receiver device. The device includes an audio interface providing an audio signal, the audio signal including at least one of an audio input signal and an audio output signal; a digital communications interface for at least communicating audio information; and an audio codec for transcoding the audio information such that the audio information includes at least a high quality distortion free lossless representation of the audio signal and the audio signal includes an audio representation of the audio information.

6. 发明申请

US20170105085A1 CONVERSION FROM OBJECT-BASED AUDIO TO HOA 有权
公开(公告)号：US20170105085A1
公开(公告)日：2017-04-13
申请号：US15266910
申请日：2016-09-15
申请人： QUALCOMM Incorporated
发明人： Moo Young Kim , Dipanjan Sen
IPC分类号： H04S7/00 , H04S3/02 , G10L19/20
CPC分类号： H04S7/308 , G10L19/008 , G10L19/167 , G10L19/173 , G10L19/20 , H04S3/02 , H04S2400/01 , H04S2420/11
摘要： A device obtains an object-based representation of an audio signal of an audio object. The audio signal corresponds to a time interval. Additionally, the device obtains a representation of a spatial vector for the audio object, wherein the spatial vector is defined in a Higher-Order Ambisonics (HOA) domain and is based on a first plurality of loudspeaker locations. The device generates, based on the audio signal of the audio object and the spatial vector, a plurality of audio signals. Each respective audio signal of the plurality of audio signals corresponds to a respective loudspeaker in a plurality of local loudspeakers at the second plurality of loudspeaker locations different from the first plurality of loudspeaker locations.

7. 发明申请

US20170105082A1 CONVERSION FROM CHANNEL-BASED AUDIO TO HOA 有权
公开(公告)号：US20170105082A1
公开(公告)日：2017-04-13
申请号：US15266895
申请日：2016-09-15
申请人： QUALCOMM Incorporated
发明人： Moo Young Kim , Dipanjan Sen
IPC分类号： H04S3/02 , H04S7/00 , G10L19/16
CPC分类号： H04S3/02 , G10L19/008 , G10L19/167 , G10L19/173 , H04S7/308 , H04S2400/01 , H04S2420/11
摘要： In one example, a method includes obtaining a representation of a multi-channel audio signal for a source loudspeaker configuration; obtaining a representation of a plurality of spatial positioning vectors (SPVs), in a Higher-Order Ambisonics (HOA) domain, that are based on a source rendering matrix, which is based on the loudspeaker configuration; and generating a HOA soundfield based on the multi-channel audio signal and the plurality of spatial positioning vectors.

8. 发明授权

US09411881B2 System and method for high dynamic range audio distribution 有权
标题翻译：高动态范围音频分配的系统和方法
公开(公告)号：US09411881B2
公开(公告)日：2016-08-09
申请号：US14066433
申请日：2013-10-29
申请人： Dolby International AB
发明人： Karl Jonas Roeden , Kristofer Kjoerling
IPC分类号： G06F17/00 , G06F17/30 , H03G7/00 , G10L19/16
CPC分类号： G06F17/3074 , G10L19/167 , G10L19/173 , H03G7/007
摘要： A transcoding tool for transcoding an audio stream to be played at a playback device is provided. The transcoding tool comprises a receiving section adapted to receive at least one bit stream comprising an audio stream and metadata associated with the audio stream. The transcoding tool further comprises a processing section connected to the receiving section and adapted to create a processed audio stream based on the audio stream and metadata, and a transmitting section connected to the processing section and adapted to transmit the created processed audio stream to the playback device.
摘要翻译：提供了用于对在播放设备中播放的音频流进行代码转换的代码转换工具。代码转换工具包括适于接收包括音频流和与音频流相关联的元数据的至少一个比特流的接收部分。代码转换工具还包括连接到接收部分并且适于基于音频流和元数据创建经处理的音频流的处理部分，以及连接到处理部分并适于将创建的处理后的音频流发送到播放的发送部分设备。

9. 发明授权

US09378748B2 Reduced complexity converter SNR calculation 有权
标题翻译：降低复杂度转换器SNR计算
公开(公告)号：US09378748B2
公开(公告)日：2016-06-28
申请号：US14439795
申请日：2013-11-04
申请人： DOLBY INTERNATIONAL AB , DOLBY LABORATORIES LICENSING CORPORATION
发明人： Michael Schug , Phillip Williams
IPC分类号： G10L19/00 , G10L19/008 , G10L19/02 , G10L19/032 , G10L19/16
CPC分类号： G10L19/008 , G10L19/02 , G10L19/032 , G10L19/173
摘要： The present document relates to audio encoding/decoding. In particular, the present document relates to a method and system for reducing the complexity of a bit allocation process used in the context of audio encoding/decoding. An audio encoder (300) configured to encode an audio signal according to a first audio codec system is described. The audio encoder (300) comprises a transform unit (302) configured to determine a set of spectral coefficients (312) based on the audio signal. Furthermore, the encoder (300) comprises a floating-point encoding unit (304) configured to determine a set of scale factors and a set of scaled values (314), based on the set of spectral coefficients (312); and to encode the set of scale factors to yield a set of encoded scale factors (313).
摘要翻译：本文件涉及音频编码/解码。特别地，本文件涉及用于降低在音频编码/解码的上下文中使用的比特分配处理的复杂度的方法和系统。描述了被配置为根据第一音频编解码器系统对音频信号进行编码的音频编码器（300）。音频编码器（300）包括被配置为基于音频信号确定一组频谱系数（312）的变换单元（302）。此外，编码器（300）包括浮点编码单元（304），其被配置为基于频谱系数集合（312）确定一组缩放因子和一组缩放值（314）; 并编码一组比例因子以产生一组编码比例因子（313）。

10. 发明授权

US09299357B2 Apparatus and method for decoding audio data 有权
标题翻译：用于对音频数据进行解码的装置和方法
公开(公告)号：US09299357B2
公开(公告)日：2016-03-29
申请号：US14157157
申请日：2014-01-16
申请人： SAMSUNG ELECTRONICS CO., LTD.
发明人： Kang Eun Lee , Do Hyung Kim , Chang Yong Son , Shi Hwa Lee
IPC分类号： G10L19/002 , G10L19/16 , G10L19/035
CPC分类号： G10L19/173 , G10L19/035
摘要： An apparatus and method for decoding audio data. The apparatus for decoding the audio data may perform block data unpacking by preferring a channel order to a block order from a bitstream, and perform dithering through preferring a block order to a channel order. Complexity in decoding may be reduced through integrating bitstream searching and the bock data unpacking, and a dithering error may be prevented through processing the block data unpacking and the dithering separately.
摘要翻译：一种用于解码音频数据的装置和方法。用于对音频数据进行解码的装置可以通过优选从比特流的频道顺序到块顺序来执行块数据解包，并且通过优选块顺序到频道顺序来执行抖动。可以通过集成比特流搜索和块状数据解包来减少解码的复杂度，并且可以通过分别处理块数据解包和抖动来防止抖动错误。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式