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公开(公告)号：US11929077B2
公开(公告)日：2024-03-12
申请号：US17131702
申请日：2020-12-22
申请人： DTS, Inc.
摘要： Embodiments of systems and methods for user enrollment in speaker authentication and speaker identification systems are disclosed. In some embodiments, the enrollment process includes collecting speech samples that are examples of multiple speech types spoken by a user, computing a speech representation for each speech sample, and aggregating the example speech representations to form a robust overall representation or user voiceprint of the user's speech.
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公开(公告)号：US10251016B2
公开(公告)日：2019-04-02
申请号：US15336382
申请日：2016-10-27
申请人： DTS, Inc.
发明人： Jean-Marc Jot , Brandon Smith , Jeffrey K. Thompson , Zoran Fejzo
IPC分类号： H04S7/00 , G10L19/008 , G10L19/20 , G10L21/0324 , H03G3/00 , H03G3/30 , H03G7/00 , H04S3/00 , G10L19/16
摘要： Systems, devices, and methods are described herein for adjusting a relationship between dialog and non-dialog signals in an audio program. In an example, information about a long-term dialog balance for an audio program can be received. The long-term loudness dialog balance can indicate a dialog-to-non-dialog loudness relationship of the audio program. A dialog loudness preference can be received, such as from a user, from a database, or from another source. A desired long-term gain or attenuation can be determined according to a difference between the received long-term dialog balance for the audio program and the received dialog balance preference. The long-term gain or attenuation can be applied to at least one of the dialog signal and the non-dialog signal of the audio program to render an audio program that is enhanced according to the loudness preference.
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公开(公告)号：US10699721B2
公开(公告)日：2020-06-30
申请号：US15939473
申请日：2018-03-29
申请人： DTS, Inc.
发明人： Gadiel Seroussi , Pavel Chubarev , Brandon Smith
IPC分类号： G10L19/005 , G10L19/02 , H03M7/30
摘要： An audio encoder can parse a digital audio signal into a plurality of frames, each frame including a specified number of audio samples, perform a transform of the audio samples of each frame to produce a plurality of frequency-domain coefficients for each frame, partition the plurality of frequency-domain coefficients for each frame into a plurality of bands for each frame, each band having bit data that represents a number of bits allocated for the band, and encode the digital audio signal and difference data to a bit stream (e.g., an encoded digital audio signal). The difference data can produce the full bit data when combined with estimate data that can be computed from data present in the bit stream. The difference data can be compressed to a smaller size than the full bit data, which can reduce the space required in the bit stream.
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公开(公告)号：US20180309421A1
公开(公告)日：2018-10-25
申请号：US15492807
申请日：2017-04-20
申请人： DTS, Inc.
发明人： Brandon Smith , Aaron Warner , Jeff Thompson
IPC分类号： H03G3/20 , G10L21/0232 , G10L25/21 , G10L25/18
CPC分类号： H03G3/3005 , G10L21/034 , G10L25/18 , G10L25/21 , G10L25/84 , H03G3/32
摘要： Loudness control systems or methods may normalize audio signals to a predetermined loudness level. If the audio signal includes moderate background noise, then the background noise may also be normalized to the target loudness level. Noise signals may be detected using content-versus-noise classification, and a loudness control system or method may be adjusted based on the detection of noise. Noise signals may be detected by signal analysis in the frequency domain or in the time domain. Loudness control systems may also produce undesirable audio effects when content shifts from a high overall loudness level to a lower overall loudness level. Such loudness drops may be detected, and the loudness control system may be adjusted to minimize the undesirable effects during the transition between loudness levels.
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公开(公告)号：US10374564B2
公开(公告)日：2019-08-06
申请号：US15492807
申请日：2017-04-20
申请人： DTS, Inc.
发明人： Brandon Smith , Aaron Warner , Jeff Thompson
摘要： Loudness control systems or methods may normalize audio signals to a predetermined loudness level. If the audio signal includes moderate background noise, then the background noise may also be normalized to the target loudness level. Noise signals may be detected using content-versus-noise classification, and a loudness control system or method may be adjusted based on the detection of noise. Noise signals may be detected by signal analysis in the frequency domain or in the time domain. Loudness control systems may also produce undesirable audio effects when content shifts from a high overall loudness level to a lower overall loudness level. Such loudness drops may be detected, and the loudness control system may be adjusted to minimize the undesirable effects during the transition between loudness levels.
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公开(公告)号：US20180308494A1
公开(公告)日：2018-10-25
申请号：US15939473
申请日：2018-03-29
申请人： DTS, Inc.
发明人： Gadiel Seroussi , Pavel Chubarev , Brandon Smith
IPC分类号： G10L19/005 , G10L19/02 , H03M7/30
摘要： An audio encoder can parse a digital audio signal into a plurality of frames, each frame including a specified number of audio samples, perform a transform of the audio samples of each frame to produce a plurality of frequency-domain coefficients for each frame, partition the plurality of frequency-domain coefficients for each frame into a plurality of bands for each frame, each band having bit data that represents a number of bits allocated for the band, and encode the digital audio signal and difference data to a bit stream (e.g., an encoded digital audio signal). The difference data can produce the full bit data when combined with estimate data that can be computed from data present in the bit stream. The difference data can be compressed to a smaller size than the full bit data, which can reduce the space required in the bit stream.
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公开(公告)号：US09685921B2
公开(公告)日：2017-06-20
申请号：US13838697
申请日：2013-03-15
申请人： DTS, Inc.
发明人： Brandon Smith , Aaron Warner , Jeff Thompson
摘要： Loudness control systems or methods may normalize audio signals to a predetermined loudness level. If the audio signal includes moderate background noise, then the background noise may also be normalized to the target loudness level. Noise signals may be detected using content-versus-noise classification, and a loudness control system or method may be adjusted based on the detection of noise. Noise signals may be detected by signal analysis in the frequency domain or in the time domain. Loudness control systems may also produce undesirable audio effects when content shifts from a high overall loudness level to a lower overall loudness level. Such loudness drops may be detected, and the loudness control system may be adjusted to minimize the undesirable effects during the transition between loudness levels.
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8.发明申请公开(公告)号：US20140016791A1
公开(公告)日：2014-01-16
申请号：US13838697
申请日：2013-03-15
申请人： DTS, INC.
发明人： Brandon Smith , Aaron Warner , Jeff Thompson
IPC分类号： H03G3/20
摘要： Loudness control systems or methods may normalize audio signals to a predetermined loudness level. If the audio signal includes moderate background noise, then the background noise may also be normalized to the target loudness level. Noise signals may be detected using content-versus-noise classification, and a loudness control system or method may be adjusted based on the detection of noise. Noise signals may be detected by signal analysis in the frequency domain or in the time domain. Loudness control systems may also produce undesirable audio effects when content shifts from a high overall loudness level to a lower overall loudness level. Such loudness drops may be detected, and the loudness control system may be adjusted to minimize the undesirable effects during the transition between loudness levels.
摘要翻译： 响度控制系统或方法可以将音频信号标准化为预定的响度级别。 如果音频信号包括适度的背景噪声，则背景噪声也可以被归一化为目标响度级别。 可以使用内容对噪声分类来检测噪声信号，并且可以基于噪声的检测来调整响度控制系统或方法。 可以通过在频域或时域中的信号分析来检测噪声信号。 当内容从高整体响度级别转换到较低的整体响度级别时，响度控制系统也可能产生不期望的音频效果。 可以检测到这种响度下降，并且可以调节响度控制系统以使在响度级之间的过渡期间的不期望的效果最小化。
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