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1. 发明授权

US09779736B2 Systems and methods for implementing efficient cross-fading between compressed audio streams 有权
公开(公告)号：US09779736B2
公开(公告)日：2017-10-03
申请号：US14395183
申请日：2013-04-17
申请人： Sirius XM Radio Inc.
发明人： Raymond Lowe , Mark Kalman , Deepen Sinha , Christopher Ward
IPC分类号： G11B27/00 , G10L19/00 , G11B27/038 , H04H60/04 , H04H20/38
CPC分类号： G10L19/00 , G11B27/031 , G11B27/038 , H04H20/38 , H04H60/04
摘要： Systems and methods are presented for efficient cross-fading (or other multiple clip processing) of compressed domain information streams on a user or client device, such as a telephone, tablet, computer or MP3 player, or any consumer device with audio playback. Exemplary implementation systems may provide cross-fade between AAC/Enhanced AAC Plus (EAACPIus) information streams or between MP3 information streams or even between information streams of unmatched formats (e.g. AAC to MP3 or MP3 to AAC). Furthermore, these systems are distinguished by the fact that cross-fade is directly applied to the compressed bitstreams so that a single decode operation may be performed on the resulting bitstream. Moreover, using the described methods, similar cross fade in the compressed domain between information streams utilizing other formats of compression, such as, for example, MP2, AC-3, PAC, etc. can also be advantageously implemented. Thus, in exemplary embodiments of the present invention a set of frames from each input stream associated with the time interval in which a cross fade is decoded, and combined and recoded with a cross fade or other effect now in the compressed bitstream. Once sent through the client device's decoder, the user hears the transitional effect. The only input data that is decoded and processed is that associated with the portion of each stream used in the crossfade, blend or other interstitial, and thus the vast majority of the input streams are left compressed.

2. 发明授权

US11961538B2 Systems and methods for implementing efficient cross-fading between compressed audio streams 有权
公开(公告)号：US11961538B2
公开(公告)日：2024-04-16
申请号：US17522595
申请日：2021-11-09
申请人： Sirius XM Radio Inc.
发明人： Raymond Lowe , Mark Kalman , Deepen Sinha , Christopher Ward
IPC分类号： G10L19/00 , G06F3/0481 , G06F3/04847 , G06F3/16 , G06F9/445 , G06F9/50 , G06Q30/02 , G06Q30/0601 , G10H1/00 , G10H1/06 , G11B27/031 , G11B27/038 , G11B27/10 , G11B27/32 , H04H20/38 , H04H60/04 , H04L67/306
CPC分类号： G11B27/038 , G06F3/0481 , G06F3/04847 , G06F3/165 , G06F9/4451 , G06F9/5066 , G06Q30/02 , G06Q30/0631 , G10H1/0025 , G10H1/06 , G10L19/00 , G11B27/031 , G11B27/105 , G11B27/322 , H04H20/38 , H04H60/04 , H04L67/306 , G10H2210/125 , G10H2240/075 , G10H2240/125 , G10H2240/305 , G10H2240/325 , G10H2250/035 , G10H2250/571
摘要： Systems and methods are presented for efficient cross-fading of compressed domain information streams on a user/client device. Exemplary systems may provide cross-fade between AAC/Enhanced AAC Plus information streams, between MP3 information streams, or between information streams of unmatched formats. These systems are distinguished in that cross-fade is directly applied to compressed bitstreams so a single decode operation is performed on the resulting bitstream. Thus, a set of frames from each input stream associated with the time interval in which a cross fade is decoded, and combined and recoded with a cross fade or other effect now in the compressed bitstream. Once sent through the client device's decoder, the user hears the transitional effect. The only input data that is decoded and processed is that associated with the portion of each stream used the crossfade, blend or other interstitial, and thus the vast majority of input streams are left compressed.

3. 发明申请

US20180025735A1 SYSTEMS AND METHODS FOR IMPLEMENTING EFFICIENT CROSS-FADING BETWEEN COMPRESSED AUDIO STREAMS 审中-公开
公开(公告)号：US20180025735A1
公开(公告)日：2018-01-25
申请号：US15722240
申请日：2017-10-02
申请人： Sirius XM Radio Inc.
发明人： Raymond Lowe , Mark Kalman , Deepen Sinha , Christopher Ward
IPC分类号： G10L19/00 , H04H20/38 , G11B27/038 , H04H60/04
CPC分类号： G10L19/00 , G11B27/031 , G11B27/038 , H04H20/38 , H04H60/04
摘要： Systems and methods are presented for efficient cross-fading (or other multiple clip processing) of compressed domain information streams on a user or client device, such as a telephone, tablet, computer or MP3 player, or any consumer device with audio playback. Exemplary implementation systems may provide cross-fade between AAC/Enhanced AAC Plus (EAACPlus) information streams or between MP3 information streams or even between information streams of unmatched formats (e.g. AAC to MP3 or MP3 to AAC). Furthermore, these systems are distinguished by the fact that cross-fade is directly applied to the compressed bitstreams so that a single decode operation may be performed on the resulting bitstream. Moreover, using the described methods, similar cross fade in the compressed domain between information streams utilizing other formats of compression, such as, for example, MP2, AC-3, PAC, etc. can also be advantageously implemented. Thus, in exemplary embodiments of the present invention a set of frames from each input stream associated with the time interval in which a cross fade is decoded, and combined and recoded with a cross fade or other effect now in the compressed bitstream. Once sent through the client device's decoder, the user hears the transitional effect. The only input data that is decoded and processed is that associated with the portion of each stream used in the crossfade, blend or other interstitial, and thus the vast majority of the input streams are left compressed.

4. 发明授权

US09767812B2 System and method for increasing transmission bandwidth efficiency (“EBT2”) 有权
公开(公告)号：US09767812B2
公开(公告)日：2017-09-19
申请号：US14226788
申请日：2014-03-26
申请人： Sirius XM Radio Inc.
发明人： Paul Marko , Deepen Sinha , Hariom Aggrawal
IPC分类号： G10L19/008 , G10L19/00 , H04H60/58 , G10L19/02
CPC分类号： G10L19/008 , G10L19/00 , G10L19/0212 , G10L2019/0001 , H04H60/58 , H04H2201/18
摘要： Systems and methods for increasing transmission bandwidth efficiency by the analysis and synthesis of the ultimate components of transmitted content are presented. To implement such a system, a dictionary or database of elemental codewords can be generated from a set of audio clips. Using such a database, a given arbitrary song or other audio file can be expressed as a series of such codewords, where each given codeword in the series is a compressed audio packet that can be used as is, or, for example, can be tagged to be modified to better match the corresponding portion of the original audio file. Each codeword in the database has an index number or unique identifier. For a relatively small number of bits used in a unique ID, e.g. 27-30, several hundreds of millions of codewords can be uniquely identified. By providing the database of codewords to receivers of a broadcast or content delivery system in advance, instead of broadcasting or streaming the actual compressed audio signal, all that need be transmitted is the series of identifiers along with any modification instructions to the identified codewords. After reception, intelligence on the receiver having access to a locally stored copy of the dictionary can reconstruct the original audio clip by accessing the codewords via the received IDs, modify them as instructed by the modification instructions, further modify the codewords either individually or in groups using the audio profile of the original audio file (also sent by the encoder) and play back a generated sequence of phase corrected codewords and modified codewords as instructed. In exemplary embodiments of the present invention, such modification can extend into neighboring codewords, and can utilize either or both (i) cross correlation based time alignment and (ii) phase continuity between harmonics, to achieve higher fidelity to the original audio clip.

5. 发明申请

US20220328051A1 SYSTEMS AND METHODS FOR IMPLEMENTING EFFICIENT CROSS-FADING BETWEEN COMPRESSED AUDIO STREAMS 有权
公开(公告)号：US20220328051A1
公开(公告)日：2022-10-13
申请号：US17522595
申请日：2021-11-09
申请人： Sirius XM Radio Inc.
发明人： Raymond Lowe , Mark Kalman , Deepen Sinha , Christopher Ward
IPC分类号： G10L19/00 , G11B27/038 , H04H60/04 , H04H20/38 , G11B27/031
摘要： Systems and methods are presented for efficient cross-fading of compressed domain information streams on a user/client device. Exemplary systems may provide cross-fade between AAC/Enhanced AAC Plus information streams, between MP3 information streams, or between information streams of unmatched formats. These systems are distinguished in that cross-fade is directly applied to compressed bitstreams so a single decode operation is performed on the resulting bitstream. Thus, a set of frames from each input stream associated with the time interval in which a cross fade is decoded, and combined and recoded with a cross fade or other effect now in the compressed bitstream. Once sent through the client device's decoder, the user hears the transitional effect. The only input data that is decoded and processed is that associated with the portion of each stream used the crossfade, blend or other interstitial, and thus the vast majority of input streams are left compressed.

6. 发明授权

US11170791B2 Systems and methods for implementing efficient cross-fading between compressed audio streams 有权
公开(公告)号：US11170791B2
公开(公告)日：2021-11-09
申请号：US16526296
申请日：2019-07-30
申请人： Sirius XM Radio Inc.
发明人： Raymond Lowe , Mark Kalman , Deepen Sinha , Christopher Ward
IPC分类号： G10L19/00 , G11B27/038 , H04H60/04 , H04H20/38 , G11B27/031
摘要： Systems and methods are presented for efficient cross-fading (or other multiple clip processing) of compressed domain information streams on a user or client device, such as a telephone, tablet, computer or MP3 player, or any consumer device with audio playback. Exemplary implementation systems may provide cross-fade between AAC/Enhanced AAC Plus (EAACPlus) information streams or between MP3 information streams or even between information streams of unmatched formats (e.g. AAC to MP3 or MP3 to AAC). Furthermore, these systems are distinguished by the fact that cross-fade is directly applied to the compressed bitstreams so that a single decode operation may be performed on the resulting bitstream. Moreover, using the described methods, similar cross fade in the compressed domain between information streams utilizing other formats of compression, such as, for example, MP2, AC-3, PAC, etc. can also be advantageously implemented. Thus, in exemplary embodiments of the present invention a set of frames from each input stream associated with the time interval in which a cross fade is decoded, and combined and recoded with a cross fade or other effect now in the compressed bitstream. Once sent through the client device's decoder, the user hears the transitional effect. The only input data that is decoded and processed is that associated with the portion of each stream used in the crossfade, blend or other interstitial, and thus the vast majority of the input streams are left compressed.

7. 发明申请

US20180068665A1 SYSTEM AND METHOD FOR INCREASING TRANSMISSION BANDWIDTH EFFICIENCY ("EBT2") 审中-公开
公开(公告)号：US20180068665A1
公开(公告)日：2018-03-08
申请号：US15706079
申请日：2017-09-15
申请人： Sirius XM Radio Inc.
发明人： Paul Marko , Deepen Sinha , Hariom Aggrawal
IPC分类号： G10L19/008 , H04H60/58 , G10L19/00 , G10L19/02
CPC分类号： G10L19/008 , G10L19/00 , G10L19/0212 , G10L2019/0001 , H04H60/58 , H04H2201/18
摘要： Systems and methods for increasing transmission bandwidth efficiency by the analysis and synthesis of the ultimate components of transmitted content are presented. To implement such a system, a dictionary or database of elemental codewords can be generated from a set of audio clips. Using such a database, a given arbitrary song or other audio file can be expressed as a series of such codewords, where each given codeword in the series is a compressed audio packet that can be used as is, or, for example, can be tagged to be modified to better match the corresponding portion of the original audio file. Each codeword in the database has an index number or unique identifier. For a relatively small number of bits used in a unique ID, e.g. 27-30, several hundreds of millions of codewords can be uniquely identified. By providing the database of codewords to receivers of a broadcast or content delivery system in advance, instead of broadcasting or streaming the actual compressed audio signal, all that need be transmitted is the series of identifiers along with any modification instructions to the identified codewords. After reception, intelligence on the receiver having access to a locally stored copy of the dictionary can reconstruct the original audio clip by accessing the codewords via the received IDs, modify them as instructed by the modification instructions, further modify the codewords either individually or in groups using the audio profile of the original audio file (also sent by the encoder) and play back a generated sequence of phase corrected codewords and modified codewords as instructed. In exemplary embodiments of the present invention, such modification can extend into neighboring codewords, and can utilize either or both (i) cross correlation based time alignment and (ii) phase continuity between harmonics, to achieve higher fidelity to the original audio clip.

8. 发明授权

US10366694B2 Systems and methods for implementing efficient cross-fading between compressed audio streams 有权
公开(公告)号：US10366694B2
公开(公告)日：2019-07-30
申请号：US15722240
申请日：2017-10-02
申请人： Sirius XM Radio Inc.
发明人： Raymond Lowe , Mark Kalman , Deepen Sinha , Christopher Ward
IPC分类号： G10L19/00 , G11B27/038 , H04H60/04 , H04H20/38 , G11B27/031
摘要： Systems and methods are presented for efficient cross-fading (or other multiple clip processing) of compressed domain information streams on a user or client device, such as a telephone, tablet, computer or MP3 player, or any consumer device with audio playback. Exemplary implementation systems may provide cross-fade between AAC/Enhanced AAC Plus (EAACPlus) information streams or between MP3 information streams or even between information streams of unmatched formats (e.g. AAC to MP3 or MP3 to AAC). Furthermore, these systems are distinguished by the fact that cross-fade is directly applied to the compressed bitstreams so that a single decode operation may be performed on the resulting bitstream. Moreover, using the described methods, similar cross fade in the compressed domain between information streams utilizing other formats of compression, such as, for example, MP2, AC-3, PAC, etc. can also be advantageously implemented. Thus, in exemplary embodiments of the present invention a set of frames from each input stream associated with the time interval in which a cross fade is decoded, and combined and recoded with a cross fade or other effect now in the compressed bitstream. Once sent through the client device's decoder, the user hears the transitional effect. The only input data that is decoded and processed is that associated with the portion of each stream used in the crossfade, blend or other interstitial, and thus the vast majority of the input streams are left compressed.

9. 发明授权

US10096326B2 System and method for increasing transmission bandwidth efficiency (“EBT2”) 有权
公开(公告)号：US10096326B2
公开(公告)日：2018-10-09
申请号：US15706079
申请日：2017-09-15
申请人： Sirius XM Radio Inc.
发明人： Paul Marko , Deepen Sinha , Hariom Aggrawal
IPC分类号： G10L19/008 , H04H60/58 , G10L19/00 , G10L19/02
摘要： Systems and methods for increasing transmission bandwidth efficiency by the analysis and synthesis of the ultimate components of transmitted content are presented. To implement such a system, a dictionary or database of elemental codewords can be generated from a set of audio clips. Using such a database, a given arbitrary song or other audio file can be expressed as a series of such codewords, where each given codeword in the series is a compressed audio packet that can be used as is, or, for example, can be tagged to be modified to better match the corresponding portion of the original audio file. Each codeword in the database has an index number or unique identifier. For a relatively small number of bits used in a unique ID, e.g. 27-30, several hundreds of millions of codewords can be uniquely identified. By providing the database of codewords to receivers of a broadcast or content delivery system in advance, instead of broadcasting or streaming the actual compressed audio signal, all that need be transmitted is the series of identifiers along with any modification instructions to the identified codewords. After reception, intelligence on the receiver having access to a locally stored copy of the dictionary can reconstruct the original audio clip by accessing the codewords via the received IDs, modify them as instructed by the modification instructions, further modify the codewords either individually or in groups using the audio profile of the original audio file (also sent by the encoder) and play back a generated sequence of phase corrected codewords and modified codewords as instructed. In exemplary embodiments of the present invention, such modification can extend into neighboring codewords, and can utilize either or both (i) cross correlation based time alignment and (ii) phase continuity between harmonics, to achieve higher fidelity to the original audio clip.

10. 发明申请

US20150142456A1 SYSTEMS AND METHODS FOR IMPLEMENTING EFFICIENT CROSS-FADING BETWEEN COMPRESSED AUDIO STREAMS 有权
标题翻译：用于在压缩音频流之间实现有效的交叉加速的系统和方法
公开(公告)号：US20150142456A1
公开(公告)日：2015-05-21
申请号：US14395183
申请日：2013-04-17
申请人： Sirius XM Radio Inc.
发明人： Raymond Lowe , Mark Kalman , Deepen Sinha , Christopher Ward
IPC分类号： G10L19/00
CPC分类号： G10L19/00 , G11B27/031 , G11B27/038 , H04H20/38 , H04H60/04
摘要： Systems and methods are presented for efficient cross-fading (or other multiple clip processing) of compressed domain information streams on a user or client device, such as a telephone, tablet, computer or MP3 player, or any consumer device with audio playback. Exemplary implementation systems may provide cross-fade between AAC/Enhanced AAC Plus (EAACPIus) information streams or between MP3 information streams or even between information streams of unmatched formats (e.g. AAC to MP3 or MP3 to AAC). Furthermore, these systems are distinguished by the fact that cross-fade is directly applied to the compressed bitstreams so that a single decode operation may be performed on the resulting bitstream. Moreover, using the described methods, similar cross fade in the compressed domain between information streams utilizing other formats of compression, such as, for example, MP2, AC-3, PAC, etc. can also be advantageously implemented. Thus, in exemplary embodiments of the present invention a set of frames from each input stream associated with the time interval in which a cross fade is decoded, and combined and recoded with a cross fade or other effect now in the compressed bitstream. Once sent through the client device's decoder, the user hears the transitional effect. The only input data that is decoded and processed is that associated with the portion of each stream used in the crossfade, blend or other interstitial, and thus the vast majority of the input streams are left compressed.
摘要翻译：呈现用于用户或客户端设备（例如电话，平板电脑，计算机或MP3播放器）或具有音频播放的任何消费者设备的压缩域信息流的有效的交叉衰落（或其他多个剪辑处理）的系统和方法。示例性实现系统可以在AAC /增强型AAC Plus（EAACPIus）信息流之间或者在MP3信息流之间或者甚至在不匹配格式的信息流（例如AAC到MP3或MP3到AAC）之间提供交叉淡入淡出。此外，这些系统的区别在于，将交叉淡化直接应用于压缩比特流，从而可以对所得到的比特流执行单个解码操作。此外，使用所描述的方法，也可以有利地实现利用其他格式的压缩的信息流之间的压缩域中类似的交叉淡入淡出，例如MP2，AC-3，PAC等。因此，在本发明的示例性实施例中，来自与其中解码交叉淡入淡出的时间间隔相关联的每个输入流的一组帧，并且现在在压缩比特流中以交叉淡入淡出或其他效果进行组合和重新编码。一旦通过客户端设备的解码器发送，用户就会听到过渡效果。解码和处理的唯一输入数据是与交叉淡入淡出，混合或其他间隙中使用的每个流的部分相关联，因此绝大多数输入流被压缩。

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