公开(公告)号：US20080298597A1

公开(公告)日：2008-12-04

申请号：US11755383

申请日：2007-05-30

申请人： Julia Turku ,  Ole Kirkeby ,  Jarmo Hiipakka

发明人： Julia Turku ,  Ole Kirkeby ,  Jarmo Hiipakka

IPC分类号： H04R5/00

CPC分类号： H04S5/00 ,  H04S7/30 ,  H04S2400/05 ,  H04S2420/07 ,  H04S2420/11

摘要： Aspects of the invention provide methods, computer-readable media, and apparatuses for digital processing of acoustic signals to create a reproduction of a natural or an artificial spatial sound environment. An aspect of the invention supports spatial audio processing such as extracting a center channel in up-mixing stereo sound for multi-channel loudspeaker setup or headphone virtualization. An aspect of the invention also supports directional listening in which sound sources in a desired direction may be amplified or attenuated. Direction and diffuseness parameters for regions of input channels are determined and an extracted channel is extracted from the input channels according to the direction and diffuseness parameters. A gain estimate is estimated for each signal component being fed into the extracted channel and an extracted channel may be synthesized from a base signal and the gain estimate. The input channels may be partitioned into a plurality of time-frequency regions.

摘要翻译： 本发明的方面提供了用于数字处理声信号以产生自然或人造空间声音环境的再现的方法，计算机可读介质和装置。 本发明的一个方面支持空间音频处理，例如提取用于多声道扬声器建立或耳机虚拟化的上混合立体声的中心声道。 本发明的一个方面还支持定向收听，其中期望方向上的声源可以被放大或衰减。 确定输入通道区域的方向和扩散参数，并根据方向和扩散参数从输入通道提取提取的通道。 对于馈送到所提取的信道中的每个信号分量估计增益估计，并且可以从基本信号和增益估计合成提取的信道。 输入通道可以被划分成多个时频区域。

公开(公告)号：US08180062B2

公开(公告)日：2012-05-15

申请号：US11755383

申请日：2007-05-30

申请人： Julia Turku ,  Ole Kirkeby ,  Jarmo Hiipakka

发明人： Julia Turku ,  Ole Kirkeby ,  Jarmo Hiipakka

IPC分类号： H04R5/00 ,  H04R5/02

CPC分类号： H04S5/00 ,  H04S7/30 ,  H04S2400/05 ,  H04S2420/07 ,  H04S2420/11

摘要： Aspects of the invention provide methods, computer-readable media, and apparatuses for digital processing of acoustic signals to create a reproduction of a natural or an artificial spatial sound environment. An aspect of the invention supports spatial audio processing such as extracting a center channel in up-mixing stereo sound for multi-channel loudspeaker setup or headphone virtualization. An aspect of the invention also supports directional listening in which sound sources in a desired direction may be amplified or attenuated. Direction and diffuseness parameters for regions of input channels are determined and an extracted channel is extracted from the input channels according to the direction and diffuseness parameters. A gain estimate is estimated for each signal component being fed into the extracted channel and an extracted channel may be synthesized from a base signal and the gain estimate. The input channels may be partitioned into a plurality of time-frequency regions.

摘要翻译： 本发明的方面提供了用于数字处理声信号以产生自然或人造空间声音环境的再现的方法，计算机可读介质和装置。 本发明的一个方面支持空间音频处理，例如提取用于多声道扬声器建立或耳机虚拟化的上混合立体声的中心声道。 本发明的一个方面还支持定向收听，其中期望方向上的声源可以被放大或衰减。 确定输入通道区域的方向和扩散参数，并根据方向和扩散参数从输入通道提取提取的通道。 对于馈送到所提取的信道中的每个信号分量估计增益估计，并且可以从基本信号和增益估计合成提取的信道。 输入通道可以被划分成多个时频区域。

公开(公告)号：US08548614B2

公开(公告)日：2013-10-01

申请号：US12459138

申请日：2009-06-25

申请人： Ole Kirkeby ,  Jarmo Hiipakka

发明人： Ole Kirkeby ,  Jarmo Hiipakka

IPC分类号： G06F17/00 ,  H03G9/00 ,  H03G3/00 ,  G10L19/00

CPC分类号： H04L25/03159 ,  G10L21/02 ,  G10L21/0264

摘要： This invention describes a method for adjusting the loudness and the spectral content of digital audio signals in a real-time using warped spectral filtering. A warped processing module modifies a spectral content of a digital audio signal with a set of gains for a plurality of non-linearly-scaled frequency bands determined by a warping factor λ of a warped delay line. Warped delay line signals, generated by the warped delay line, are processed by a warped filter block containing multiple warped finite impulse response filters, e.g., Mth band filters, using individual warped spectral filtering in said plurality of the non-linearly-scaled frequency bands, which is followed by a conventional processing by a dynamic range control/equalization block. The present invention describes another innovation, that is embedding the warped processing module in a two-channel quadrature mirror filter (QMF) bank for improving processing efficiency at high sample rates.

公开(公告)号：US20100010651A1

公开(公告)日：2010-01-14

申请号：US12459138

申请日：2009-06-25

申请人： Ole Kirkeby ,  Jarmo Hiipakka

发明人： Ole Kirkeby ,  Jarmo Hiipakka

IPC分类号： G06F17/00

CPC分类号： H04L25/03159 ,  G10L21/02 ,  G10L21/0264

摘要： This invention describes a method for adjusting the loudness and the spectral content of digital audio signals in a real-time using warped spectral filtering. A warped processing module modifies a spectral content of a digital audio signal with a set of gains for a plurality of non-linearly-scaled frequency bands determined by a warping factor λ of a warped delay line. Warped delay line signals, generated by the warped delay line, are processed by a warped filter block containing multiple warped finite impulse response filters, e.g., Mth band filters, using individual warped spectral filtering in said plurality of the non-linearly-scaled frequency bands, which is followed by a conventional processing by a dynamic range control/equalization block. The present invention describes another innovation, that is embedding the warped processing module in a two-channel quadrature mirror filter (QMF) bank for improving processing efficiency at high sample rates.

摘要翻译： 本发明描述了一种使用翘曲频谱滤波实时调整数字音频信号的响度和频谱含量的方法。 翘曲处理模块通过由翘曲延迟线的翘曲因子λ确定的多个非线性缩放频带的一组增益来修改数字音频信号的频谱内容。 由翘曲延迟线产生的翘曲延迟线信号由包含多个弯曲有限脉冲响应滤波器的翘曲滤波器块（例如，M频带滤波器）使用在所述多个非线性缩放频带中的单独翘曲频谱滤波来处理 ，其后是动态范围控制/均衡块的常规处理。 本发明描述了另一个创新，即将翘曲处理模块嵌入在双通道正交镜滤波器（QMF）库中，以提高在高采样率下的处理效率。

公开(公告)号：US20050249272A1

公开(公告)日：2005-11-10

申请号：US10830715

申请日：2004-04-23

申请人： Ole Kirkeby ,  Jarmo Hiipakka

发明人： Ole Kirkeby ,  Jarmo Hiipakka

IPC分类号： H03K5/159 ,  H04L25/03

CPC分类号： H04L25/03159 ,  G10L21/02 ,  G10L21/0264

摘要： This invention describes a method for adjusting the loudness and the spectral content of digital audio signals in a real-time using warped spectral filtering. A warped processing module modifies a spectral content of a digital audio signal with a set of gains for a plurality of non-linearly-scaled frequency bands determined by a warping factor λ of a warped delay line. Warped delay line signals, generated by the warped delay line, are processed by a warped filter block containing multiple warped finite impulse response filters, e.g., Mth band filters, using individual warped spectral filtering in said plurality of the non-linearly-scaled frequency bands, which is followed by a conventional processing by a dynamic range control/equalization block. The present invention describes another innovation, that is embedding the warped processing module in a two-channel quadrature mirror filter (QMF) bank for improving processing efficiency at high sample rates.

摘要翻译： 本发明描述了一种使用翘曲频谱滤波实时调整数字音频信号的响度和频谱含量的方法。 翘曲处理模块通过由翘曲延迟线的翘曲因子λ确定的多个非线性缩放频带的一组增益来修改数字音频信号的频谱内容。 由翘曲延迟线产生的翘曲延迟线信号由包含多个弯曲有限脉冲响应滤波器的翘曲滤波器块（例如，M频带滤波器）使用在所述多个非线性缩放频带中的单独翘曲频谱滤波来处理 ，其后是动态范围控制/均衡块的常规处理。 本发明描述了另一个创新，即将翘曲处理模块嵌入在双通道正交镜滤波器（QMF）库中，以提高在高采样率下的处理效率。

公开(公告)号：US07587254B2

公开(公告)日：2009-09-08

申请号：US10830715

申请日：2004-04-23

申请人： Ole Kirkeby ,  Jarmo Hiipakka

发明人： Ole Kirkeby ,  Jarmo Hiipakka

IPC分类号： G06F17/00 ,  H03G9/00 ,  H03G3/00 ,  G10L19/00

CPC分类号： H04L25/03159 ,  G10L21/02 ,  G10L21/0264

摘要： This invention describes a method for adjusting the loudness and the spectral content of digital audio signals in a real-time using warped spectral filtering. A warped processing module modifies a spectral content of a digital audio signal with a set of gains for a plurality of non-linearly-scaled frequency bands determined by a warping factor λ of a warped delay line. Warped delay line signals, generated by the warped delay line, are processed by a warped filter block containing multiple warped finite impulse response filters, e.g., Mth band filters, using individual warped spectral filtering in said plurality of the non-linearly-scaled frequency bands, which is followed by a conventional processing by a dynamic range control/equalization block. The present invention describes another innovation, that is embedding the warped processing module in a two-channel quadrature mirror filter (QMF) bank for improving processing efficiency at high sample rates.

摘要翻译： 本发明描述了一种使用翘曲频谱滤波实时调整数字音频信号的响度和频谱含量的方法。 翘曲处理模块通过由翘曲延迟线的翘曲因子λ确定的多个非线性缩放频带的一组增益来修改数字音频信号的频谱内容。 由翘曲延迟线产生的翘曲延迟线信号由包含多个弯曲有限脉冲响应滤波器的翘曲滤波器块（例如，M频带滤波器）使用在所述多个非线性缩放频带中的单独翘曲频谱滤波来处理 ，其后是动态范围控制/均衡块的常规处理。 本发明描述了另一个创新，即将翘曲处理模块嵌入在双通道正交镜滤波器（QMF）库中，以提高在高采样率下的处理效率。

公开(公告)号：US07818079B2

公开(公告)日：2010-10-19

申请号：US11450919

申请日：2006-06-09

申请人： Riitta Väänänen ,  Jarmo Hiipakka

发明人： Riitta Väänänen ,  Jarmo Hiipakka

IPC分类号： G06F17/00

CPC分类号： H04S1/007 ,  H04S1/005

摘要： This invention relates to a device, a method, a software application program, a software application program product and an audio device for processing a digital signal, wherein the digital signal is separated and downsampled into at least two downsampled subband signals, wherein at least one of the at least two downsampled subband signals is equalized, and wherein the at least two downsampled subband signals are upsampled and combined into a digital output signal.

摘要翻译： 本发明涉及一种用于处理数字信号的设备，方法，软件应用程序，软件应用程序产品和音频设备，其中数字信号被分离和下采样为至少两个下采样子带信号，其中至少一个 所述至少两个下采样子带信号被均衡，并且其中所述至少两个下采样子带信号被上采样并组合成数字输出信号。

公开(公告)号：US20070240558A1

公开(公告)日：2007-10-18

申请号：US11405890

申请日：2006-04-18

申请人： Jarno Seppanen ,  Antti Eronen ,  Jarmo Hiipakka

发明人： Jarno Seppanen ,  Antti Eronen ,  Jarmo Hiipakka

IPC分类号： G10H7/00

CPC分类号： G10H1/40 ,  G10H2210/076 ,  G10H2220/081 ,  G10H2250/105 ,  G10H2250/135 ,  G10H2250/221 ,  G10H2250/235

摘要： An apparatus for providing a beat and tatum tracker includes an accent filter bank, a periodicity estimator, a period estimator and a phase estimator. The accent filter bank is configured to downsample an input audio signal. The periodicity estimator is configured to determine a periodicity based on the downsampled signal. The period estimator is configured to determine a period based on the periodicity. The phase estimator is configured to estimate a phase based on the period for determining beat and tatum times of the input audio signal.

摘要翻译： 一种用于提供拍子和纹身跟踪器的装置包括重音滤波器组，周期性估计器，周期估计器和相位估计器。 重音滤波器组被配置为对输入音频信号进行下采样。 周期性估计器被配置为基于下采样信号来确定周期性。 周期估计器被配置为基于周期性来确定周期。 相位估计器被配置为基于用于确定输入音频信号的节拍和纹波时间的周期来估计相位。

公开(公告)号：US08457328B2

公开(公告)日：2013-06-04

申请号：US12107491

申请日：2008-04-22

申请人： Jussi Virolainen ,  Jarmo Hiipakka

发明人： Jussi Virolainen ,  Jarmo Hiipakka

IPC分类号： H04B1/00

CPC分类号： H04M3/56

摘要： An apparatus for utilizing spatial information for audio signal enhancement in a multiple distributed network may include a processor. The processor may be configured to receive representations of a plurality of audio signals including at least one audio signal received at a first device and at least a second audio signal received at a second device. The first and second devices may be part of a common acoustic space network and may be arbitrarily positioned with respect to each other. The processor may be further configured to combine the first and second audio signals to form a composite audio signal, and provide for communication of the composite audio signal along with spatial information relating to a sound source of at least one of the plurality of audio signals to another device.

公开(公告)号：US20090264114A1

公开(公告)日：2009-10-22

申请号：US12107491

申请日：2008-04-22

申请人： Jussi Virolainen ,  Jarmo Hiipakka

发明人： Jussi Virolainen ,  Jarmo Hiipakka

IPC分类号： H04M3/56

CPC分类号： H04M3/56

摘要： An apparatus for utilizing spatial information for audio signal enhancement in a multiple distributed network may include a processor. The processor may be configured to receive representations of a plurality of audio signals including at least one audio signal received at a first device and at least a second audio signal received at a second device. The first and second devices may be part of a common acoustic space network and may be arbitrarily positioned with respect to each other. The processor may be further configured to combine the first and second audio signals to form a composite audio signal, and provide for communication of the composite audio signal along with spatial information relating to a sound source of at least one of the plurality of audio signals to another device.

摘要翻译： 用于利用多分布式网络中的音频信号增强的空间信息的装置可以包括处理器。 处理器可以被配置为接收包括在第一设备处接收的至少一个音频信号和在第二设备处接收的至少第二音频信号的多个音频信号的表示。 第一和第二装置可以是公共声学空间网络的一部分，并且可以相对于彼此任意定位。 处理器还可以被配置为组合第一和第二音频信号以形成复合音频信号，并且提供复合音频信号的通信以及与多个音频信号中的至少一个音频信号的声源有关的空间信息， 另一个设备。