Method, apparatus and computer program product for providing rhythm information from an audio signal
    11.
    发明授权
    Method, apparatus and computer program product for providing rhythm information from an audio signal 有权
    用于从音频信号提供节奏信息的方法,装置和计算机程序产品

    公开(公告)号:US07612275B2

    公开(公告)日:2009-11-03

    申请号:US11405890

    申请日:2006-04-18

    IPC分类号: G10H1/00

    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。

    Parameter Space Re-Panning for Spatial Audio
    12.
    发明申请
    Parameter Space Re-Panning for Spatial Audio 审中-公开
    空间音频参数空间再平衡

    公开(公告)号:US20080298610A1

    公开(公告)日:2008-12-04

    申请号:US11755401

    申请日:2007-05-30

    IPC分类号: H04S1/00

    摘要: Aspects of the invention provide methods, computer-readable media, and apparatuses for re-panning multiple audio signals by applying spatial cue coding. Sound sources in each of the signals may be re-panned before the signals are mixed to a combined signal. Processing may be applied in a conference bridge that receives two omni-directionally recorded audio signals. The conference bridge subsequently re-pans one of the signals to the listeners left side and the signal to the right side. The source image mapping and panning may further be adaptively based on the content and use case. Mapping may be done by manipulating the directional parameters prior to directional decoding or before directional mixing. Directional information that is associated with an audio input signal is remapped order to compress input source positions into virtual source positions. The virtual sources may be placed with respect to actual loudspeakers using binaural cue panning.

    摘要翻译: 本发明的方面提供了通过应用空间提示编码来重新平移多个音频信号的方法,计算机可读介质和装置。 每个信号中的声源可以在将信号混合到组合信号之前重新平移。 可以在接收两个全方位记录的音频信号的会议桥中应用处理。 会议桥随后将一个信号重新传给听众左侧,并将信号转发到右侧。 源图像映射和平移可以进一步基于内容和用例自适应地进行。 映射可以通过在定向解码之前或在定向混合之前操纵方向参数来完成。 与音频输入信号相关联的定向信息被重新映射以将输入源位置压缩成虚拟源位置。 可以使用双耳提示平移相对于实际的扬声器放置虚拟源。

    Equalization based on digital signal processing in downsampled domains
    13.
    发明申请
    Equalization based on digital signal processing in downsampled domains 有权
    基于下采样域中数字信号处理的均衡

    公开(公告)号:US20070288235A1

    公开(公告)日:2007-12-13

    申请号:US11450919

    申请日:2006-06-09

    IPC分类号: G10L19/02

    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。

    Audio processing system
    14.
    发明申请
    Audio processing system 有权
    音频处理系统

    公开(公告)号:US20060015196A1

    公开(公告)日:2006-01-19

    申请号:US10537931

    申请日:2003-10-08

    IPC分类号: G06F17/00

    CPC分类号: G06F9/4887

    摘要: The invention relates to an audio processing system 1. order to improve the audio processing, the system comprises at least one audio processing component 11, 12, 13 with a group of real-time functions 14 for processing audio data and a group of control functions 15 for processing control signals. The system further comprises at least one processor 16 providing a first process 20 for executing real-time functions 14 of the at least one audio processing component 11, 12, 13 using a basically constant processing power and at least one further process 30 for executing control functions 15 of the at least one audio processing component 11, 12, 13 when needed without affecting the processing power employed for the first process 20. The invention relates equally to a corresponding method and to a corresponding software program product.

    摘要翻译: 本发明涉及音频处理系统1.为了改进音频处理,该系统包括至少一个音频处理组件11,12,13,其具有用于处理音频数据的一组实时功能14和一组控制功能 15用于处理控制信号。 该系统还包括至少一个处理器16,其提供第一处理20,用于使用基本上恒定的处理能力来执行至少一个音频处理组件11,12,13的实时功能14,以及用于执行控制的至少一个另外的进程30 当需要时至少一个音频处理组件11,12,13的功能15,而不影响用于第一处理20的处理能力。本发明同样涉及相应的方法和相应的软件程序产品。

    Audio processing system
    15.
    发明授权
    Audio processing system 有权
    音频处理系统

    公开(公告)号:US07363095B2

    公开(公告)日:2008-04-22

    申请号:US10537931

    申请日:2003-10-08

    IPC分类号: G06F17/00

    CPC分类号: G06F9/4887

    摘要: The invention relates to an audio processing system 1. In order to improve the audio processing, the system comprises at least one audio processing component 11, 12, 13 with a group of real-time functions 14 for processing audio data and a group of control functions 15 for processing control signals. The system further comprises at least one processor 16 providing a first process 20 for executing real-time functions 14 of the at least one audio processing component 11, 12, 13 using a basically constant processing power and at least one further process 30 for executing control functions 15 of the at least one audio processing component 11, 12, 13 when needed without affecting the processing power employed for the first process 20. The invention relates equally to a corresponding method and to a corresponding software program product.

    摘要翻译: 本发明涉及音频处理系统1。 为了改善音频处理,该系统包括至少一个音频处理组件11,12,13,其具有用于处理音频数据的一组实时功能14和用于处理控制信号的一组控制功能15。 该系统还包括至少一个处理器16,其提供第一处理20,用于使用基本上恒定的处理能力来执行至少一个音频处理组件11,12,13的实时功能14,以及用于执行控制的至少一个另外的进程30 当需要时至少一个音频处理组件11,12,13的功能15,而不影响第一处理20所使用的处理能力。 本发明同样涉及相应的方法和相应的软件程序产品。

    Direct encoding into a directional audio coding format
    16.
    发明申请
    Direct encoding into a directional audio coding format 审中-公开
    直接编码为定向音频编码格式

    公开(公告)号:US20080004729A1

    公开(公告)日:2008-01-03

    申请号:US11478792

    申请日:2006-06-30

    申请人: Jarmo Hiipakka

    发明人: Jarmo Hiipakka

    IPC分类号: G06F17/00 H04R5/00

    CPC分类号: H04R5/04

    摘要: Provided are improved systems, methods, and computer program products for direct encoding of spatial sound into a directional audio coding format. The direct encoding may also include providing spatial information for a monophonic sound source. The direct encoding of spatial information may be used, for example, in interactive audio applications such as gaming environments and in teleconferencing applications such as multi-party teleconferencing.

    摘要翻译: 提供了用于将空间声音直接编码为定向音频编码格式的改进的系统,方法和计算机程序产品。 直接编码还可以包括为单声道声源提供空间信息。 空间信息的直接编码可以用于例如诸如游戏环境的交互式音频应用和诸如多方电话会议的电话会议应用中。

    Method, Apparatus and Computer Program Product for Providing Low Frequency Expansion of Speech
    17.
    发明申请
    Method, Apparatus and Computer Program Product for Providing Low Frequency Expansion of Speech 审中-公开
    提供低频扩展语音的方法,设备和计算机程序产品

    公开(公告)号:US20070299655A1

    公开(公告)日:2007-12-27

    申请号:US11425809

    申请日:2006-06-22

    IPC分类号: G10L19/14

    CPC分类号: G10L21/038

    摘要: An apparatus for providing low frequency expansion of speech includes a nonlinear function element, a band-pass filter element and a level control element. The non-linear function element is configured to receive a signal including at least two harmonic components and to produce a signal including at least one lower frequency harmonic component having a lower frequency than a highest frequency component of the at least two harmonic components responsive to the signal including at least two harmonic components. The band-pass filter element is in communication with the non-linear function element and configured to filter the signal including the at least one lower frequency harmonic component. The level control element is configured to apply a level control to alter the filtered signal based on a feature vector associated with an input speech signal.

    摘要翻译: 用于提供语音的低频扩展的装置包括非线性功能元件,带通滤波器元件和电平控制元件。 非线性功能元件被配置为接收包括至少两个谐波分量的信号,并产生包括至少一个低频谐波分量的信号,该低频谐波分量的频率低于至少两个谐波分量的最高频率分量 信号包括至少两个谐波分量。 带通滤波器元件与非线性功能元件通信,并且被配置为对包括至少一个较低频率谐波分量的信号进行滤波。 电平控制元件被配置为施加电平控制以基于与输入语音信号相关联的特征向量来改变滤波信号。

    Media subsystem, method and computer program product for adaptive media buffering
    18.
    发明申请
    Media subsystem, method and computer program product for adaptive media buffering 审中-公开
    用于自适应媒体缓冲的媒体子系统,方法和计算机程序产品

    公开(公告)号:US20070260780A1

    公开(公告)日:2007-11-08

    申请号:US11321796

    申请日:2006-04-11

    IPC分类号: G06F5/00

    CPC分类号: G06F9/544 G06F1/3203

    摘要: A media subsystem of a processing element includes a plurality of elements and a latency manager. The plurality of elements are capable of processing media data including a plurality of instances wherein a first element inserts a length of media data into buffer(s) from which a second element thereafter reads the length of media data for subsequent output from the media subsystem. The latency manager is capable of determining a latency requirement of the media subsystem, and then dynamically tuning the length of media data inserted into the buffer(s) based upon the latency requirement, including increasing or decreasing the length of media data inserted into the buffer(s) during one or more instances(s).

    摘要翻译: 处理元件的媒体子系统包括多个元件和延迟管理器。 多个元件能够处理包括多个实例的媒体数据,其中第一元素将一定长度的媒体数据插入到缓冲器中,然后第二元素从其中读取媒体数据的长度以便随后从媒体子系统输出。 延迟管理器能够确定媒体子系统的等待时间要求,然后基于等待时间要求动态调整插入到缓冲器中的媒体数据的长度,包括增加或减少插入到缓冲器中的媒体数据的长度 在一个或多个实例中。