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1. 发明公开

EP4439558A2 DATA DRIVEN AUDIO ENHANCEMENT 审中-公开
公开(公告)号：EP4439558A2
公开(公告)日：2024-10-02
申请号：EP24194500.5
申请日：2019-06-19
申请人： Cisco Technology, Inc.
发明人： HIJAZI, Samer , MAO, Xuehong , CASAS, Raul Alejandro , WOJCICKI, Kamil Krzysztof , MAYDAN, Dror , ROWEN, Christopher
IPC分类号： G10L21/0208
CPC分类号： H04N21/2335 , H04N21/23418 , H04N21/4394 , H04N21/4398 , H04N21/44008 , G10L17/18 , G10L21/0208 , G10L25/30 , G10L21/02 , G06N3/084 , G10L25/81 , G10L25/84
摘要： Systems and methods are disclosed for audio enhancement. For example, methods may include accessing audio data; determining a window of audio samples based on the audio data; inputting the window of audio samples to a classifier to obtain a classification, in which the classifier includes a neural network and the classification takes a value from a set of multiple classes of audio; selecting, based on the classification, an audio enhancement network from a set of multiple audio enhancement networks; applying the selected audio enhancement network to the window of audio samples to obtain an enhanced audio segment, in which the selected audio enhancement network includes a neural network that has been trained using audio signals of a type associated with the classification; and storing, playing, or transmitting an enhanced audio signal based on the enhanced audio segment.

2. 发明授权

EP2901450B1 METHOD AND APPARATUS FOR ENCODING AN AUDIO SIGNAL 有权转让
公开(公告)号：EP2901450B1
公开(公告)日：2018-12-26
申请号：EP13762972.1
申请日：2013-09-06
申请人： Google Technology Holdings LLC
发明人： GIBBS, Jonathan A. , FRANCOIS, Holly L.
IPC分类号： G10L19/18
CPC分类号： G10L19/20 , G10L25/81
摘要： A hybrid speech encoder detects changes from music-like sounds to speech-like sounds. When the encoder detects music-like sounds (e.g., music), it operates in a first mode, in which it employs a frequency domain coder. When the encoder detects speech-like sounds (e.g., human speech), it operates in a second mode, and employs a time domain or waveform coder. When a switch occurs, the encoder backfills a gap in the signal with a portion of the signal occurring after the gap.

3. 发明公开

EP3292514A1 TRAINING SIGNAL PROCESSING MODEL FOR COMPONENT REPLACEMENT IN SIGNAL PROCESSING SYSTEM 有权
标题翻译：信号处理系统中组件更换的训练信号处理模型
公开(公告)号：EP3292514A1
公开(公告)日：2018-03-14
申请号：EP16725656.9
申请日：2016-05-04
申请人： Dolby Laboratories Licensing Corporation
发明人： WANG, Guiping , LU, Lie
IPC分类号： G06N99/00 , G10L25/51
CPC分类号： G06N99/005 , G06N3/0445 , G10L25/51 , G10L25/81
摘要： Embodiments of training signal processing models for component replacement in signal processing systems are disclosed. A device for training a third signal processing model via a machine learning method include a first calculating unit, a second calculating unit and a training unit. The first calculating unit calculates a first output from each first sample in a first sample set based on a first signal processing model. The second calculating unit calculates a second output from the first sample based on a second signal processing model. The training unit trains a third signal processing model by minimizing a first cost including a first error between the first output and a third output, so that the combination of the second signal processing model and the third signal processing model can simulate the behaviors of the first signal processing model on the first sample set. The third output is an output of the third signal processing model in response to an input including the second output.

4. 发明公开

EP3240301A4 VOICE PROCESSING DEVICE 审中-公开
公开(公告)号：EP3240301A4
公开(公告)日：2017-12-27
申请号：EP15872280
申请日：2015-12-24
申请人： AISIN SEIKI
发明人： VRAZIC SACHA
IPC分类号： H04R3/00 , G01S3/80 , G10L15/00 , G10L15/20 , G10L15/28 , G10L21/0208 , G10L21/0216 , H04R1/02 , H04R1/32 , H04R1/40
CPC分类号： G10L15/20 , G01S3/8006 , G10L15/00 , G10L15/28 , G10L21/0208 , G10L21/0232 , G10L25/81 , G10L25/84 , G10L2021/02085 , G10L2021/02087 , G10L2021/02166 , H04R1/406 , H04R3/005 , H04R2499/13
摘要： A voice processing device includes plural microphones 22 disposed in a vehicle, a voice source direction determination portion 16 determining a direction of a voice source by handling a sound reception signal as a spherical wave in a case where the voice source serving as a source of a voice included in the sound reception signal obtained by each of the plural microphones is disposed at a near field, the voice source direction determination portion determining the direction of the voice source by handling the sound reception signal as a plane wave in a case where the voice source is disposed at the far field, and a beamforming processing portion 12 performing beamforming so as to suppress a sound arriving from a direction range other than a direction range including the direction of the voice source.

5. 发明授权

EP2579256B1 Audio classification system 有权
标题翻译：音频分类系统
公开(公告)号：EP2579256B1
公开(公告)日：2017-05-17
申请号：EP12182831.3
申请日：2012-09-03
申请人： Dolby Laboratories Licensing Corporation
发明人： Cheng, Bin , Lu, Lie
IPC分类号： G10L25/81
CPC分类号： G10L25/81 , G10L19/20 , G10L25/51

6. 发明公开

EP3109861A1 SIGNAL CLASSIFYING METHOD AND DEVICE, AND AUDIO ENCODING METHOD AND DEVICE USING SAME 有权
标题翻译：新加坡国立大剧院
公开(公告)号：EP3109861A1
公开(公告)日：2016-12-28
申请号：EP15751981.0
申请日：2015-02-24
申请人： Samsung Electronics Co., Ltd.
发明人： CHOO, Ki-hyun , POROV, Anton Viktorovich , OSIPOV, Konstantin Sergeevich
IPC分类号： G10L25/78
CPC分类号： G10L25/81 , G10L19/005 , G10L19/0212 , G10L19/022 , G10L19/125 , G10L19/20
摘要： The present invention relates to an audio encoding and, more particularly, to a signal classifying method and device, and an audio encoding method and device using the same, which can reduce a delay caused by an encoding mode switching while improving the quality of reconstructed sound. The signal classifying method may comprise the operations of: classifying a current frame into one of a speech signal and a music signal; determining, on the basis of a characteristic parameter obtained from multiple frames, whether a result of the classifying of the current frame includes an error; and correcting the result of the classifying of the current frame in accordance with a result of the determination. By correcting an initial classification result of an audio signal on the basis of a correction parameter, the present invention can determine an optimum coding mode for the characteristic of an audio signal and can prevent frequent coding mode switching between frames.
摘要翻译：音频编码技术领域本发明涉及一种音频编码，更具体地说，涉及一种信号分类方法和装置，以及使用该编码方法和装置的音频编码方法和装置，其可以减少由编码模式切换引起的延迟，同时提高重构声音的质量。信号分类方法可以包括以下操作：将当前帧分类为语音信号和音乐信号之一; 基于从多个帧获得的特征参数来确定当前帧的分类结果是否包括错误; 以及根据确定的结果来校正当前帧的分类结果。通过基于校正参数来校正音频信号的初始分类结果，本发明可以确定用于音频信号特性的最佳编码模式，并且可以防止帧之间的频繁编码模式切换。

7. 发明公开

EP2774145A1 IMPROVING NON-SPEECH CONTENT FOR LOW RATE CELP DECODER 有权转让
标题翻译：改进非NICHTSPRACHLICHEM内容CELP解码器率低
公开(公告)号：EP2774145A1
公开(公告)日：2014-09-10
申请号：EP12844916.2
申请日：2012-11-01
申请人： VoiceAge Corporation
发明人： VAILLANCOURT, Tommy , JELINEK, Milan
IPC分类号： G10L19/04
CPC分类号： H03G3/20 , G10L19/08 , G10L19/20 , G10L19/22 , G10L19/26 , G10L25/78 , G10L25/81 , G10L25/93
摘要： A method and device for modifying a synthesis of a time-domain excitation decoded by a time-domain decoder, wherein the synthesis of the decoded time- domain excitation is classified into one of a number of categories. The decoded time-domain excitation is converted into a frequency-domain excitation, and the frequency-domain excitation is modified as a function of the category in which the synthesis of the decoded time-domain excitation is classified. The modified frequency-domain excitation is converted into a modified time-domain excitation, and a synthesis filter is supplied with the modified time-domain excitation to produce a modified synthesis of the decoded time-domain excitation.

8. 发明公开

EP2629295A3 System and method for noise estimation with music detection 有权转让
标题翻译：系统与Verfahren zurGeräuschschätzungmit Musikerkennung
公开(公告)号：EP2629295A3
公开(公告)日：2014-01-22
申请号：EP13155352.1
申请日：2013-02-15
申请人： QNX Software Systems Limited
发明人： Mason, Steven , Hetherington, Phillip Alan , Paranjpe, Shreyas
IPC分类号： G10L21/0216 , G10L25/81
CPC分类号： G10L21/0208 , G10L21/0216 , G10L25/81
摘要： In a system and method for noise estimation with music detection described herein provides for generating a music classification for music content in an audio signal. The music detector may classify the audio signal as music or non-music. The non-music signal may be considered to be signal and noise. An adaption rate may be adjusted responsive to the generated music classification. A noise estimate is calculated applying the adjusted adaption rate. The system and method may mitigate the noise modeling algorithms being misled by the music components.
摘要翻译：在本文描述的用于具有音乐检测的噪声估计的系统和方法中，用于生成音频信号中的音乐内容的音乐分类。音乐检测器可将音频信号分类为音乐或非音乐。非音乐信号可以被认为是信号和噪声。可以响应于所生成的音乐分类来调节适应率。使用调整的适应率计算噪声估计。该系统和方法可以减轻由音乐组件误导的噪声建模算法。

9. 发明公开

EP2635997A2 SMARTPHONE-BASED METHODS AND SYSTEMS 审中-公开
标题翻译：智能手机为基础的方法和系统
公开(公告)号：EP2635997A2
公开(公告)日：2013-09-11
申请号：EP11838908.9
申请日：2011-11-04
申请人： Digimarc Corporation
发明人： DAVIS, Bruce, L. , RODRIGUEZ, Tony, F. , RHOADS, Geoffrey, B. , ALLER, Joshua, V. , CONWELL, William, Y. , OWEN, Jerrine, K. , ALATTAR, Adnan, M. , ROGERS, Eliot , BRADLEY, Brett, A. , REED, Alastair, M. , BRANDIS, Robert, Craig
IPC分类号： G06K9/60 , G06F7/00 , H04L29/08
CPC分类号： G06Q30/06 , G06F8/61 , G06F9/3885 , G06F9/445 , G06F9/5027 , G10L15/285 , G10L25/78 , G10L25/81 , G10L25/84 , H04L2463/101 , H04M1/72522 , H04M2250/52
摘要： Methods and arrangements involving portable devices, such as smartphones and tablet computers, are disclosed. One arrangement enables a creator of content to select software with for rendering that creator's content - assuring continuity between artistic intention and delivery. Another arrangement utilizes the smartphone camera to identify nearby subjects, and take actions based thereon. Othe rely on near field chip (RFID) identification of objects, or on identification of audio streams (e.g., music, voice). Some of the detailed technologies concern improvements to the user interfaces associated with such devices. Others involve use of these devices in connection with shopping, text entry, sign language interpretation, and vision-based discovery. Still other improvements are architectural in nature, e.g., relating to evidence-based state machines, and blackboard systems. Yet other technologies concern use linked data in portable devices - some of which exploit GPU capabilities. Still other technologies concern computational photography.

10. 发明公开

EP2629295A2 System and method for noise estimation with music detection 有权转让
标题翻译：系统和方法与音乐识别噪声估计
公开(公告)号：EP2629295A2
公开(公告)日：2013-08-21
申请号：EP13155352.1
申请日：2013-02-15
申请人： QNX Software Systems Limited
发明人： Mason, Steven , Hetherington, Phillip Alan , Paranjpe, Shreyas
IPC分类号： G10L25/81 , G10L21/0216
CPC分类号： G10L21/0208 , G10L21/0216 , G10L25/81
摘要： In a system and method for noise estimation with music detection described herein provides for generating a music classification for music content in an audio signal. The music detector may classify the audio signal as music or non-music. The non-music signal may be considered to be signal and noise. An adaption rate may be adjusted responsive to the generated music classification. A noise estimate is calculated applying the adjusted adaption rate. The system and method may mitigate the noise modeling algorithms being misled by the music components.

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