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公开(公告)号：US20190066708A1
公开(公告)日：2019-02-28
申请号：US16169964
申请日：2018-10-24
IPC分类号： G10L19/02 , G10L19/26 , G10L21/0388 , G10L21/038
摘要： There is provided methods and apparatuses for decoding and encoding of audio signals. In particular, a method for decoding includes receiving a waveform-coded signal having a spectral content corresponding to a subset of the frequency range above a cross-over frequency. The waveform-coded signal is interleaved with a parametric high frequency reconstruction of the audio signal above the cross-over frequency. In this way an improved reconstruction of the high frequency bands of the audio signal is achieved.
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公开(公告)号：US20170018279A1
公开(公告)日：2017-01-19
申请号：US15279365
申请日：2016-09-28
CPC分类号： G10L19/0208 , G10L19/02 , G10L19/0212 , G10L19/26 , G10L21/038 , G10L21/0388
摘要： There is provided methods and apparatuses for decoding and encoding of audio signals. In particular, a method for decoding includes receiving a waveform-coded signal having a spectral content corresponding to a subset of the frequency range above a cross-over frequency. The waveform-coded signal is interleaved with a parametric high frequency reconstruction of the audio signal above the cross-over frequency. In this way an improved reconstruction of the high frequency bands of the audio signal is achieved.
摘要翻译： 提供了用于对音频信号进行解码和编码的方法和装置。 特别地，一种解码方法包括：接收波形编码信号，该波形编码信号具有对应于高于交叉频率的频率范围子集的频谱内容。 波形编码信号与高于交叉频率的音频信号的参数高频重构进行交织。 以这种方式，实现了音频信号的高频带的改进的重建。
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公开(公告)号：US20230198488A1
公开(公告)日：2023-06-22
申请号：US17921279
申请日：2021-05-17
发明人： Stanislaw GORLOW , Robin THESING
摘要： The present document describes a dynamic range control unit (210) configured to apply dynamic range control, referred to as DRC, to an audio signal (211). The DRC unit (210) is configured to downsample a subband signal (212) derived from the audio signal (211), to provide a downsampled subband signal (321), to determine a DRC gain (329) based on the downsampled subband signal (321), and to apply the DRC gain (329) to the subband signal (212), to provide a compressed subband signal (213) of a compressed audio signal (214).
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公开(公告)号：US20220101865A1
公开(公告)日：2022-03-31
申请号：US17495184
申请日：2021-10-06
IPC分类号： G10L19/02 , G10L21/038 , G10L21/0388 , G10L19/26
摘要： There is provided methods and apparatuses for decoding and encoding of audio signals. In particular, a method for decoding includes receiving a waveform-coded signal having a spectral content corresponding to a subset of the frequency range above a cross-over frequency. The waveform-coded signal is interleaved with a parametric high frequency reconstruction of the audio signal above the cross-over frequency. In this way an improved reconstruction of the high frequency bands of the audio signal is achieved.
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公开(公告)号：US20160042742A1
公开(公告)日：2016-02-11
申请号：US14781891
申请日：2014-04-04
IPC分类号： G10L19/02 , G10L21/0388
CPC分类号： G10L19/0208 , G10L19/02 , G10L19/0212 , G10L19/26 , G10L21/038 , G10L21/0388
摘要： There is provided methods and apparatuses for decoding and encoding of audio signals. In particular, a method for decoding includes receiving a waveform-coded signal having a spectral content corresponding to a subset of the frequency range above a cross-over frequency. The waveform-coded signal is interleaved with a parametric high frequency reconstruction of the audio signal above the cross-over frequency. In this way an improved reconstruction of the high frequency bands of the audio signal is achieved.
摘要翻译： 提供了用于对音频信号进行解码和编码的方法和装置。 特别地，一种解码方法包括：接收波形编码信号，该波形编码信号具有对应于高于交叉频率的频率范围子集的频谱内容。 波形编码信号与高于交叉频率的音频信号的参数高频重构进行交织。 以这种方式，实现了音频信号的高频带的改进的重建。
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公开(公告)号：US20240194210A1
公开(公告)日：2024-06-13
申请号：US18539664
申请日：2023-12-14
IPC分类号： G10L19/02 , G10L19/26 , G10L21/038 , G10L21/0388
CPC分类号： G10L19/0208 , G10L19/02 , G10L19/0212 , G10L19/26 , G10L21/038 , G10L21/0388
摘要： There is provided methods and apparatuses for decoding and encoding of audio signals. In particular, a method for decoding includes receiving a waveform-coded signal having a spectral content corresponding to a subset of the frequency range above a cross-over frequency. The waveform-coded signal is interleaved with a parametric high frequency reconstruction of the audio signal above the cross-over frequency. In this way an improved reconstruction of the high frequency bands of the audio signal is achieved.
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公开(公告)号：US20210090580A1
公开(公告)日：2021-03-25
申请号：US17114192
申请日：2020-12-07
IPC分类号： G10L19/008 , H04S3/00 , H04S7/00
摘要： A method for rendering an audio output based on an audio data stream including M audio signals, side information including a series of reconstruction instances of a reconstruction matrix C and first timing data, the side information allowing reconstruction of N audio objects from the M audio signals, and object metadata defining spatial relationships between the N audio objects. The method includes generating a synchronized rendering matrix based on the object metadata, the first timing data, and information relating to a current playback system configuration, the synchronized rendering matrix having a rendering instance for each reconstruction instance, multiplying each reconstruction instance with a corresponding rendering instance to form a corresponding instance of an integrated rendering matrix, and applying the integrated rendering matrix to the audio signals in order to render an audio output.
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公开(公告)号：US20200005801A1
公开(公告)日：2020-01-02
申请号：US16486493
申请日：2018-03-06
IPC分类号： G10L19/008 , H04S3/00 , H04S7/00
摘要： A method for rendering an audio output based on an audio data stream including M audio signals, side information including a series of reconstruction instances of a reconstruction matrix C and first timing data, the side information allowing reconstruction of N audio objects from the M audio signals, and object metadata defining spatial relationships between the N audio objects. The method includes generating a synchronized rendering matrix based on the object metadata, the first timing data, and information relating to a current playback system configuration, the synchronized rendering matrix having a rendering instance for each reconstruction instance, multiplying each reconstruction instance with a corresponding rendering instance to form a corresponding instance of an integrated rendering matrix, and applying the integrated rendering matrix to the audio signals in order to render an audio output.
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公开(公告)号：US20170221491A1
公开(公告)日：2017-08-03
申请号：US15494195
申请日：2017-04-21
发明人： Robin THESING , Michael SCHUG
IPC分类号： G10L19/008 , G10L19/028 , G10L19/16
CPC分类号： G10L19/008 , G10L19/0204 , G10L19/028 , G10L19/167 , G10L21/0388
摘要： The present document relates to the technical field of audio coding, decoding and processing. It specifically relates to methods of recovering high frequency content of an audio signal from low frequency content of the same audio signal in an efficient manner. A method for determining a first banded tonality value for a first frequency subband of an audio signal is described. The first banded tonality value is used for approximating a high frequency component of the audio signal based on a low frequency component of the audio signal. The method comprises determining a set of transform coefficients in a corresponding set of frequency bins based on a block of samples of the audio signal; determining a set of bin tonality values for the set of frequency bins using the set of transform coefficients, respectively; and combining a first subset of two or more of the set of bin tonality values for two or more corresponding adjacent frequency bins of the set of frequency bins lying within the first frequency subband, thereby yielding the first banded tonality value for the first frequency subband.
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