Method and apparatus to enhance low frequency components and medium frequency components of audio signal
    1.
    发明授权
    Method and apparatus to enhance low frequency components and medium frequency components of audio signal 有权
    提高音频信号的低频分量和中频分量的方法和装置

    公开(公告)号:US08582785B2

    公开(公告)日:2013-11-12

    申请号:US11761417

    申请日:2007-06-12

    申请人: Han-gil Moon

    发明人: Han-gil Moon

    IPC分类号: H03G5/00

    CPC分类号: H04S7/307 H04S1/002 H04S3/002

    摘要: A method and apparatus to enhance one or more low-frequency components and one or more medium-frequency components of an audio signal. The method includes performing filtering on the input audio signal using a plurality of band-pass filters, generating a plurality of harmonic-frequency signals using a plurality of audio signals resulting from the performing filtering operation, and mixing the plurality of harmonic-frequency signals with the input audio signal.

    摘要翻译: 一种用于增强音频信号的一个或多个低频分量和一个或多个中频分量的方法和装置。 该方法包括使用多个带通滤波器对输入音频信号进行滤波,使用由执行滤波操作产生的多个音频信号产生多个谐波频率信号,并将多个谐波频率信号与 输入音频信号。

    Method and apparatus for encoding and decoding residual signal
    2.
    发明授权
    Method and apparatus for encoding and decoding residual signal 有权
    剩余信号编码和解码的方法和装置

    公开(公告)号:US08447618B2

    公开(公告)日:2013-05-21

    申请号:US12831353

    申请日:2010-07-07

    IPC分类号: G10L19/00

    CPC分类号: G10L19/008 G10L19/0204

    摘要: A residual signal decoding method including dividing a signal into a plurality of sub-bands in a frequency domain, wherein the signal is in a residual signal and is encoded with respect to an effective residual signal exceeding a masking curve that is generated with respect to a multi-channel audio signal, transforming the frequency domain into a time domain, and restoring the signal as an effective residual signal by synthesizing signals of the domain-transformed sub-bands.

    摘要翻译: 一种残差信号解码方法,包括将信号划分成频域中的多个子带,其中所述信号是残差信号,并且相对于超过相对于 多频道音频信号,将频域变换成时域,并通过合成域变换子带的信号将信号恢复为有效残留信号。

    Multi-channel audio decoding method and apparatus therefor
    3.
    发明授权
    Multi-channel audio decoding method and apparatus therefor 有权
    多声道音频解码方法及其装置

    公开(公告)号:US08433584B2

    公开(公告)日:2013-04-30

    申请号:US12693990

    申请日:2010-01-26

    IPC分类号: G10L21/00

    CPC分类号: G10L19/008

    摘要: Provided is a multi-channel audio decoding method and apparatus therefor, the method involving decoding filter bank coefficients of a plurality of bands from a bitstream having a predetermined format; performing frequency transformation on the decoded filter bank coefficients of the plurality of bands, with respect to each of the plurality of bands; compensating for a phase of each of the plurality of bands according to a predetermined phase compensation value, and serially band-synthesizing the frequency-transformed coefficients of each of the plurality of phase-compensated bands on a frequency domain; and decoding a multi-channel audio signal from the band-synthesized frequency-transformed coefficients.

    摘要翻译: 提供一种多声道音频解码方法及其装置,该方法包括从具有预定格式的比特流中解码多个频带的滤波器组系数; 对所述多个频带的解码滤波器组系数进行相对于所述多个频带中的每一个的频率变换; 根据预定的相位补偿值补偿多个频带中的每一个的相位,并且对频域上的多个相位补偿频带中的每一个的频率变换系数进行串行频带合成; 以及从频带合成的频率变换系数中解码多声道音频信号。

    Method and apparatus for frequency encoding, and method and apparatus for frequency decoding
    4.
    发明授权
    Method and apparatus for frequency encoding, and method and apparatus for frequency decoding 有权
    用于频率编码的方法和装置,以及用于频率解码的方法和装置

    公开(公告)号:US08392177B2

    公开(公告)日:2013-03-05

    申请号:US12363937

    申请日:2009-02-02

    IPC分类号: G10L19/14

    CPC分类号: G10L19/093

    摘要: Provided are a method and apparatus for encoding the frequency of a continuation sinusoidal signal and a method and apparatus for decoding the same. In the encoding method, a continuation sinusoidal signal successive to a sinusoidal signal in a previous section is extracted from a current section; a frequency of the continuation sinusoidal signal at the boundary between the current and previous sections is changed to a first frequency, based on representative frequencies of the continuation sinusoidal signal and at least one sinusoidal signal that belongs to a section adjacent to the current section and is successive to the continuation sinusoidal signal; and the first frequency is encoded.

    摘要翻译: 提供一种用于对连续正弦信号的频率进行编码的方法和装置,以及用于对其进行解码的方法和装置。 在编码方法中,从当前部分提取与前一部分中的正弦信号连续的连续正弦信号; 基于连续正弦信号的代表频率和属于与当前部分相邻的部分的至少一个正弦信号,在当前部分和前一部分之间的边界处的连续正弦信号的频率被改变为第一频率,并且是 连续的正弦信号; 并且第一频率被编码。

    Binaural decoder to output spatial stereo sound and a decoding method thereof
    5.
    发明授权
    Binaural decoder to output spatial stereo sound and a decoding method thereof 有权
    输出空间立体声的双耳解码器及其解码方法

    公开(公告)号:US09071920B2

    公开(公告)日:2015-06-30

    申请号:US13588563

    申请日:2012-08-17

    IPC分类号: H04R5/00 H04S3/00

    摘要: A binaural decoder for an MPEG surround stream, which decodes an MPEG surround stream into a stereo 3D signal, and a decoding method thereof. The method includes dividing a compressed audio stream and head related transfer function (HRTF) data into subbands, selecting predetermined subbands of the HRTF data divided into subbands and filtering the HRTF data to obtain the selected subbands, decoding the audio stream divided into subbands into a stream of multi-channel audio data with respect to subbands according to spatial additional information, and binaural-synthesizing the HRTF data of the selected subbands with the multi-channel audio data of corresponding subbands.

    摘要翻译: 用于将MPEG环绕流解码为立体声3D信号的MPEG环绕流的双耳解码器及其解码方法。 该方法包括将压缩音频流和头相关传输函数(HRTF)数据划分成子带,选择被分成子带的HRTF数据的预定子带,并对HRTF数据进行滤波以获得所选择的子带,将分成子带的音频流解码为 根据空间附加信息相对于子带的多声道音频数据流,以及使用相应子带的多声道音频数据对所选择的子带的HRTF数据进行双耳合成。

    Apparatus and method for transmitting digital multimedia broadcasting data, and method and apparatus for receiving digital multimedia broadcasting data
    6.
    发明授权
    Apparatus and method for transmitting digital multimedia broadcasting data, and method and apparatus for receiving digital multimedia broadcasting data 有权
    用于发送数字多媒体广播数据的装置和方法,以及用于接收数字多媒体广播数据的方法和装置

    公开(公告)号:US08619996B2

    公开(公告)日:2013-12-31

    申请号:US12858677

    申请日:2010-08-18

    IPC分类号: H04H20/47

    摘要: Provided are a method and apparatus for transmitting digital multimedia broadcasting data, and a method and apparatus for receiving digital multimedia broadcasting data. A basic audio signal and a multichannel audio signal are encoded to generate a basic audio stream and a multichannel audio stream, and a first data stream describing property and position data of the basic audio stream and a second data stream describing property and position data of the multichannel audio stream are transmitted as independent streams. According to the performance of the receiving apparatus, an audio signal may be decoded by using just the first data stream only or both the first data stream and the second stream.

    摘要翻译: 提供一种用于发送数字多媒体广播数据的方法和装置,以及用于接收数字多媒体广播数据的方法和装置。 编码基本音频信号和多声道音频信号以生成基本音频流和多声道音频流,以及描述基本音频流的属性和位置数据的第一数据流以及描述基本音频流的属性和位置数据的第二数据流 多声道音频流作为独立流传输。 根据接收装置的性能,可以仅使用第一数据流或第一数据流和第二流二者来解码音频信号。

    Encoding method and apparatus for efficiently encoding sinusoidal signal whose magnitude is less than masking value according to psychoacoustic model and decoding method and apparatus for decoding encoded sinusoidal signal
    9.
    发明授权
    Encoding method and apparatus for efficiently encoding sinusoidal signal whose magnitude is less than masking value according to psychoacoustic model and decoding method and apparatus for decoding encoded sinusoidal signal 有权
    编码方法和装置,用于根据心理声学模型有效地编码其幅度小于掩蔽值的正弦信号,以及用于解码编码的正弦信号的解码方法和装置

    公开(公告)号:US08165871B2

    公开(公告)日:2012-04-24

    申请号:US12131446

    申请日:2008-06-02

    IPC分类号: G10L19/00

    CPC分类号: G10L19/093

    摘要: Provided are an encoding method and apparatus for efficiently encoding a sinusoidal signal whose magnitude is less than a masking value according to a psychoacoustic model, a decoding method and apparatus for decoding an encoded sinusoidal signal, and a computer-readable recording medium having recorded thereon a program for executing the encoding method/the decoding method. By using a particular code indicating that the magnitude of a first sinusoidal signal is less than a masking value according to a psychoacoustic model to encode the first sinusoidal signal, difference coding for a third sinusoidal signal of a next frame, which is connected to the first sinusoidal signal, is performed using a sinusoidal signal or sinusoidal signals selected according to a method to use the particular code, and a decoding apparatus obtains a sum with a transmitted difference using the selected sinusoidal signal(s).

    摘要翻译: 提供了一种编码方法和装置,用于根据心理声学模型有效地编码其幅度小于掩蔽值的正弦信号,用于对编码的正弦信号进行解码的解码方法和装置,以及在其上记录有编码的正弦信号的计算机可读记录介质 用于执行编码方法/解码方法的程序。 通过使用指示第一正弦信号的幅度小于根据心理声学模型编码第一正弦信号的屏蔽值的特定码,对于连接到第一正弦信号的下一帧的第三正弦信号的差编码 使用根据使用特定码的方法选择的正弦信号或正弦信号来执行正弦信号,并且解码装置使用所选择的正弦信号来获得具有发送差的和。

    Signal processing method, encoding apparatus using the signal processing method, decoding apparatus using the signal processing method, and information storage medium
    10.
    发明授权
    Signal processing method, encoding apparatus using the signal processing method, decoding apparatus using the signal processing method, and information storage medium 有权
    信号处理方法,使用信号处理方法的编码装置,使用信号处理方法的解码装置和信息存储介质

    公开(公告)号:US08948406B2

    公开(公告)日:2015-02-03

    申请号:US13204120

    申请日:2011-08-05

    摘要: Provided is a signal processing method for processing a bitstream, an information storage medium including the bitstream, an encoding apparatus, and a decoding apparatus. The signal processing method includes: receiving a bitstream including additional information; extracting first information which is information associated with extraction of the additional information and is included in at least one of additional bitstream information, a skip field, and auxiliary data bits, which are included in the bitstream; and extracting and decoding the additional information by using the first information.

    摘要翻译: 提供了一种用于处理比特流的信号处理方法,包括比特流的信息存储介质,编码装置和解码装置。 信号处理方法包括:接收包括附加信息的比特流; 提取与提取附加信息相关联的信息的第一信息,并且被包括在比特流中包括的附加比特流信息,跳过字段和辅助数据比特中的至少一个中; 以及通过使用第一信息来提取和解码附加信息。