WO2022237252A1 - 音频信号处理方法、装置及存储介质 - Google Patents
音频信号处理方法、装置及存储介质 Download PDFInfo
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- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
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- G—PHYSICS
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- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
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- G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/003—Changing voice quality, e.g. pitch or formants
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- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/02—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos
- G10H1/06—Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour
- G10H1/12—Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour by filtering complex waveforms
- G10H1/125—Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour by filtering complex waveforms using a digital filter
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- G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
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- G—PHYSICS
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- G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
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- G—PHYSICS
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- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H2210/00—Aspects or methods of musical processing having intrinsic musical character, i.e. involving musical theory or musical parameters or relying on musical knowledge, as applied in electrophonic musical tools or instruments
- G10H2210/155—Musical effects
- G10H2210/321—Missing fundamental, i.e. creating the psychoacoustic impression of a missing fundamental tone through synthesis of higher harmonics, e.g. to play bass notes pitched below the frequency range of reproducing speakers
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- G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
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Abstract
Description
Xnldi(n)=(e-e1-Xbi(n))/(e-1)。
Claims (12)
- 一种音频信号处理方法,其特征在于,包括:对待处理音频信号进行子带滤波处理,得到多个子带信号,所述子带信号的个数是根据带通滤波器的最低频率和音频设备的截止频率确定的,所述子带信号包括子带带通信号;根据各所述子带带通信号和虚拟低音增强信号处理算法,获得目标音频信号。
- 根据权利要求1所述的音频信号处理方法,其特征在于,所述虚拟低音增强信号处理算法包括非线性器件算法,所述根据各所述子带带通信号和虚拟低音增强信号处理算法,获得目标音频信号,包括:根据各所述子带带通信号和所述非线性器件算法,获得虚拟低音增强信号;对所述子带信号中的子带高通信号进行高通滤波或延时处理,获得高频音频信号;根据所述虚拟低音增强信号和所述高频音频信号,获得所述目标音频信号。
- 根据权利要求2所述的音频信号处理方法,其特征在于,所述根据各所述子带带通信号和所述非线性器件算法,获得虚拟低音增强信号,包括:基于所述非线性器件算法,对各所述子带带通信号进行非线性处理,得到对应的非线性信号;对各所述非线性信号进行求和处理;对求和得到的信号进行带通滤波处理,得到低频音频信号的谐波成分;将所述谐波成分与上一帧待处理音频信号的谐波成分进行音频合成,获得所述虚拟低音增强信号。
- 根据权利要求3所述的音频信号处理方法,其特征在于,所述对各所述非线性信号进行求和处理,包括:基于各所述非线性信号对应的权重,对各所述非线性信号进行求和处理,所述权重用于调整对应非线性信号所占比例。
- 根据权利要求2所述的音频信号处理方法,其特征在于,所述对所述子带信号中的子带高通信号进行高通滤波或延时处理,获得高频音频信号,包括:对所述子带信号中的子带高通信号进行高通滤波或延时处理;对高通滤波或延时处理得到的信号进行重叠相加,获得所述高频音频信号。
- 根据权利要求2所述的音频信号处理方法,其特征在于,所述根据所述虚拟低音增强信号和所述高频音频信号,获得目标音频信号,包括:获取预设虚拟低音增益;根据所述高频音频信号和所述虚拟低音增强信号,确定所述虚拟低音增强信号的最大虚拟低音增益;根据所述预设虚拟低音增益和所述最大虚拟低音增益,确定所述虚拟低音增强信号的目标虚拟低音增益;基于所述目标虚拟低音增益,对所述虚拟低音增强信号进行增益处理,得到低音谐波信号;将所述低音谐波信号和所述高频音频信号进行叠加,获得所述目标音频信号。
- 根据权利要求1至6中任一项所述的音频信号处理方法,其特征在于,所述对待处理音频信号进行子带滤波处理,得到多个子带信号之前,还包括:对输入的源音频信号进行连续取帧处理或重叠取帧处理,获得所述待处理音频信号,所述待处理音频信号的帧长是根据采样率、处理资源和系统延时中的至少一项确定的。
- 根据权利要求1至6中任一项所述的音频信号处理方法,其特征在于,所述根据各所述子带带通信号和虚拟低音增强信号处理算法,获得目标音频信号之后,还包括:对所述目标音频信号进行音频动态范围控制,得到待输出音频信号。
- 一种音频信号处理装置,其特征在于,包括:子带滤波模块,用于对待处理音频信号进行子带滤波处理,得到多个子带信号,所述子带信号的个数是根据带通滤波器的最低频率和音频设备的截止频率确定的,所述子带信号包括子带带通信号;虚拟低音增强模块,根据各所述子带带通信号和虚拟低音增强信号处理算法,获得目标音频信号。
- 一种电子设备,其特征在于,包括:处理器和存储器;其中,所述存储器存储有计算机程序,所述计算机程序适于由所述处理器加载并执行如权利要求1至8中任一项的所述的音频信号处理方法。
- 一种计算机存储介质,其特征在于,所述计算机存储介质存储有多条指令,所述指令适于由处理器加载并执行如权利要求1至8中任一项所述的音频信号处理方法。
- 一种计算机程序产品,其特征在于,包括:计算机程序,所述计算机 程序适于由处理器加载并执行如权利要求1至8中任一项所述的音频信号处理方法。
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JP2022573367A JP2023529818A (ja) | 2021-05-14 | 2022-02-10 | オーディオ信号処理方法、装置及び記憶媒体 |
EP22806229.5A EP4148730A4 (en) | 2021-05-14 | 2022-02-10 | AUDIO SIGNAL PROCESSING METHOD AND APPARATUS, AND STORAGE MEDIUM |
AU2022275169A AU2022275169B2 (en) | 2021-05-14 | 2022-02-10 | Audio signal processing method and apparatus, and storage medium |
KR1020227041933A KR20230035232A (ko) | 2021-05-14 | 2022-02-10 | 오디오 신호 처리 방법, 디바이스 및 저장 매체 |
US17/990,047 US20230090810A1 (en) | 2021-05-14 | 2022-11-18 | Audio signal processing method, device and storage medium |
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CN202110528118.1A CN115346542A (zh) | 2021-05-14 | 2021-05-14 | 音频信号处理方法、装置及存储介质 |
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US (1) | US20230090810A1 (zh) |
EP (1) | EP4148730A4 (zh) |
JP (1) | JP2023529818A (zh) |
KR (1) | KR20230035232A (zh) |
CN (1) | CN115346542A (zh) |
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Cited By (1)
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CN116437268A (zh) * | 2023-06-14 | 2023-07-14 | 武汉海微科技有限公司 | 自适应分频的环绕声上混方法、装置、设备及存储介质 |
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US9319789B1 (en) * | 2008-02-26 | 2016-04-19 | Tc Group A/S | Bass enhancement |
CN111970627B (zh) * | 2020-08-31 | 2021-12-03 | 广州视源电子科技股份有限公司 | 音频信号的增强方法、装置、存储介质和处理器 |
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- 2022-02-10 EP EP22806229.5A patent/EP4148730A4/en active Pending
- 2022-02-10 JP JP2022573367A patent/JP2023529818A/ja active Pending
- 2022-02-10 WO PCT/CN2022/075838 patent/WO2022237252A1/zh unknown
- 2022-02-10 KR KR1020227041933A patent/KR20230035232A/ko unknown
- 2022-11-18 US US17/990,047 patent/US20230090810A1/en active Pending
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CN103517183A (zh) * | 2012-10-09 | 2014-01-15 | Tcl集团股份有限公司 | 一种低音信号增强的方法及装置 |
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Cited By (2)
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CN116437268A (zh) * | 2023-06-14 | 2023-07-14 | 武汉海微科技有限公司 | 自适应分频的环绕声上混方法、装置、设备及存储介质 |
CN116437268B (zh) * | 2023-06-14 | 2023-08-25 | 武汉海微科技有限公司 | 自适应分频的环绕声上混方法、装置、设备及存储介质 |
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EP4148730A4 (en) | 2023-11-29 |
AU2022275169B2 (en) | 2024-05-02 |
AU2022275169A1 (en) | 2023-02-02 |
US20230090810A1 (en) | 2023-03-23 |
CN115346542A (zh) | 2022-11-15 |
EP4148730A1 (en) | 2023-03-15 |
JP2023529818A (ja) | 2023-07-12 |
KR20230035232A (ko) | 2023-03-13 |
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