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1. 发明公开

EP3997895A1 NON-COINCIDENT AUDIO-VISUAL CAPTURE SYSTEM 无效
公开(公告)号：EP3997895A1
公开(公告)日：2022-05-18
申请号：EP19749489.1
申请日：2019-07-08
申请人： DTS, Inc.
发明人： STEIN, Edward , WALSH, Martin
IPC分类号： H04S7/00 , H04R27/00

2. 发明公开

EP3977447A1 OMNI-DIRECTIONAL ENCODING AND DECODING FOR AMBISONICS 审中-实审
公开(公告)号：EP3977447A1
公开(公告)日：2022-04-06
申请号：EP20746393.6
申请日：2020-05-29
申请人： DTS, Inc.
发明人： STEIN, Edward , GOODWIN, Michael M.
IPC分类号： G10L19/008 , H04S3/00 , H04S3/02

3. 发明公开

EP2614586A2 DYNAMIC COMPENSATION OF AUDIO SIGNALS FOR IMPROVED PERCEIVED SPECTRAL IMBALANCES 有权
标题翻译：频谱失衡的较好感知音频信号的动态补偿
公开(公告)号：EP2614586A2
公开(公告)日：2013-07-17
申请号：EP11824143.9
申请日：2011-09-08
申请人： DTS, Inc.
发明人： WALSH, Martin , STEIN, Edward , JOT, Jean-marc
IPC分类号： H03G3/00
CPC分类号： H03G5/025 , H03G5/005 , H03G5/165 , H03G9/005 , H03G9/025
摘要： An input audio signal is equalized to form an output audio signal on the basis of an intended listening sound pressure level, the output capabilities of a particular playback device, and unique hearing characteristics of a listener. An intended listening level is first determined based on the properties of the audio signal and a mastering sound level. The intended listening level is used to determine an optimal sound pressure level for the particular playback device based on its capabilities and any master volume gain. These two levels are used to determine how much louder to make individual frequencies based on data pertaining to human auditory perception, either standardized or directly measured. The audio is further compensated on the basis of hearing loss data, again either standardized or directly measured, after optionally extending the signal bandwidth. The final, compensated audio signal is sent to the playback device for playback.

4. 发明授权

EP2939443B1 SYSTEM AND METHOD FOR VARIABLE DECORRELATION OF AUDIO SIGNALS 有权
标题翻译：用于音频信号的可变退化的系统和方法
公开(公告)号：EP2939443B1
公开(公告)日：2018-02-14
申请号：EP13869491.4
申请日：2013-12-23
申请人： DTS, Inc.
发明人： STEIN, Edward , WALSH, Martin
IPC分类号： H04S7/00 , H04S1/00 , H04S3/00 , H04S5/00
CPC分类号： H04S7/307 , H04S1/005 , H04S3/004 , H04S5/00 , H04S2400/03 , H04S2420/01
摘要： Various embodiments relate to a system and method for decorrelating an audio signal with a hybrid filter. The hybrid filter is generated by first generating a decorrelation filter. A frequency-dependent warping is applied to the decorrelation filter. The warped decorrelation filter is then mixed with a carrier filter to generate the hybrid filter. The carrier filter may include filters for spatial processing of an audio signal, filters for upmixing an audio signal, and/or filters for downmixing an audio signal.

5. 发明公开

EP2556608A1 ADAPTIVE ENVIRONMENTAL NOISE COMPENSATION FOR AUDIO PLAYBACK 审中-公开
标题翻译：应声环境补偿AUDIOABSPIELUNGEN
公开(公告)号：EP2556608A1
公开(公告)日：2013-02-13
申请号：EP11766865.7
申请日：2011-04-11
申请人： DTS, Inc.
发明人： WALSH, Martin , STEIN, Edward , JOT, Jean-marc , JOHNSTON, James, D.
IPC分类号： H04B15/00
CPC分类号： H04S7/307 , G10L21/0232 , G10L21/0364 , H04R3/04 , H04S7/301
摘要： The present invention counterbalances background noise by applying dynamic equalization. A psychoacoustic model representing the perception of masking effects of background noise relative to a desired foreground soundtrack is used to accurately counterbalance background noise. A microphone samples what the listener is hearing and separates the desired soundtrack from the interfering noise. The signal and noise components are analyzed from a psychoacoustic perspective and the soundtrack is equalized such that the frequencies that were originally masked are unmasked. Subsequently, the listener may hear the soundtrack over the noise. Using this process the EQ can continuously adapt to the background noise level without any interaction from the listener and only when required. When the background noise subsides, the EQ adapts back to its original level and the user does not experience unnecessarily high loudness levels.

6. 发明公开

EP2486654A1 ADAPTIVE DYNAMIC RANGE ENHANCEMENT OF AUDIO RECORDINGS 有权
标题翻译：录音的自适应动态范围扩展
公开(公告)号：EP2486654A1
公开(公告)日：2012-08-15
申请号：EP10822801.6
申请日：2010-10-08
申请人： DTS, Inc.
发明人： WALSH, Martin , STEIN, Edward , JOT, Jean-marc
IPC分类号： H03G7/00
CPC分类号： H03G9/18 , H03G9/005 , H03G9/025
摘要： There are provided methods and an apparatus for conditioning an audio signal. According to one aspect of the present invention there is included a method for conditioning an audio signal having the steps of: receiving at least one audio signal, each audio signal having at least one channel, each channel being segmented into a plurality of frames over a series of time; calculating at least one measure of dynamic excursion of the audio signal for a plurality of successive segments of time; filtering the audio signal into a plurality of subbands, each frame being represented by at least one subband; deriving a dynamic gain factor from the successive segments of time; analyzing at least one subband of the frame to determine if a transient exists in the frame; and applying the dynamic gain factor to each frame having a transient.

7. 发明公开

EP3526981A1 GAIN PHASE EQUALIZATION (GPEQ) FILTER AND TUNING METHODS FOR ASYMMETRIC TRANSAURAL AUDIO REPRODUCTION 有权
公开(公告)号：EP3526981A1
公开(公告)日：2019-08-21
申请号：EP17860191.0
申请日：2017-10-10
申请人： DTS, Inc.
发明人： STEIN, Edward , CORSELLO, David , SHI, Guangji
IPC分类号： H04R3/04 , H04R3/14 , H04R29/00 , H03G3/30

8. 发明公开

EP3412039A1 AUGMENTED REALITY HEADPHONE ENVIRONMENT RENDERING 有权
公开(公告)号：EP3412039A1
公开(公告)日：2018-12-12
申请号：EP17748169.4
申请日：2017-02-02
申请人： DTS, Inc.
发明人： JOT, Jean-Marc , LEE, Keun Sup , STEIN, Edward
IPC分类号： H04S5/00 , H04S7/00 , G10K15/08
CPC分类号： H04S7/306 , G10L19/00 , G10L19/008 , G10L19/018 , G10L19/20 , H04S1/005 , H04S3/002 , H04S7/301 , H04S7/308 , H04S2400/11 , H04S2400/15 , H04S2420/01 , H04S2420/03 , H04S2420/07
摘要： Accurate modeling of acoustic reverberation can be essential to generating and providing a realistic virtual reality or augmented reality experience for a participant. In an example, a reverberation signal for playback using headphones can be provided. The reverberation signal can correspond to a virtual sound source signal originating at a specified location in a local listener environment. Providing the reverberation signal can include, among other things, using information about a reference impulse response from a reference environment and using characteristic information about reverberation decay in a local environment of the participant. Providing the reverberation signal can further include using information about a relationship between a volume of the reference environment and a volume of the local environment of the participant.

9. 发明公开

EP3201791A1 DIGITAL AUDIO FILTERS FOR VARIABLE SAMPLE RATES 审中-公开
标题翻译：数字音频滤波器，适用于可变采样率
公开(公告)号：EP3201791A1
公开(公告)日：2017-08-09
申请号：EP15846638.3
申请日：2015-06-30
申请人： DTS, Inc.
发明人： STEIN, Edward , WALSH, Martin , KELLY, Michael
IPC分类号： G06F17/17 , G06F17/10 , H04R29/00
CPC分类号： H04S5/00 , H04R5/00 , H04S7/30 , H04S7/301 , H04S2420/01
摘要： Various exemplary embodiments relate to a method and apparatus for processing audio signals to influence the reproduction of the audio signals. The apparatus may include a speaker, a headphone (over-the-ear, on-ear, or in-ear), a microphone, a computer, a mobile device, a home theater receiver, a television, a Blu-ray (BD) player, a compact disc (CD) player, a digital media player, or the like. The apparatus may be configured to receive a virtualization profile including a digital audio filter with a design sample rate, resample the virtualization profile to a different sample rate, filter the audio signal with the resampled virtualization profile, and reproduce the filtered audio signal as sound.
摘要翻译：各种示例性实施例涉及用于处理音频信号以影响音频信号的再现的方法和装置。该设备可以包括扬声器，头戴式耳机（耳上式，入耳式或入耳式），麦克风，计算机，移动设备，家庭影院接收器，电视机，蓝光（BD ）播放器，光盘（CD）播放器，数字媒体播放器等。该装置可以被配置为接收包括具有设计采样率的数字音频滤波器的虚拟化简档，将该虚拟化简档重采样到不同的采样率，利用重采样的虚拟化简档对音频信号进行滤波，并且将滤波后的音频信号再现为声音。

10. 发明授权

EP2614586B1 DYNAMIC COMPENSATION OF AUDIO SIGNALS FOR IMPROVED PERCEIVED SPECTRAL IMBALANCES 有权
标题翻译：频谱失衡的较好感知音频信号的动态补偿
公开(公告)号：EP2614586B1
公开(公告)日：2016-11-09
申请号：EP11824143.9
申请日：2011-09-08
申请人： DTS, Inc.
发明人： WALSH, Martin , STEIN, Edward , JOT, Jean-marc
IPC分类号： H03G9/00 , H03G5/02 , H03G9/02 , H03G5/16 , H03G5/00
CPC分类号： H03G5/025 , H03G5/005 , H03G5/165 , H03G9/005 , H03G9/025

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