公开(公告)号：US20080281604A1

公开(公告)日：2008-11-13

申请号：US11956690

申请日：2007-12-14

申请人： Ki-hyun CHOO ,  Anton Porov ,  Eun-mi Oh ,  Jung-hoe Kim

发明人： Ki-hyun CHOO ,  Anton Porov ,  Eun-mi Oh ,  Jung-hoe Kim

IPC分类号： G10L19/00

CPC分类号： G10L19/0208 ,  G10L19/093 ,  G10L19/18

摘要： A method and apparatus to encode and decode an audio signal. In the encoding method and apparatus, one or more important frequency components may be detected from an audio signal, the frequency components may be encoded, and then an envelope of the audio signal may be encoded. In the decoding method and apparatus, an audio signal may be decoded by adjusting envelopes at one or more bands containing one or more important frequency components in consideration of the energy values of the frequency components. Accordingly, it is possible to maximize the coding efficiency without degrading the sound quality of the audio signal even if the audio signal is encoded or decoded using a small amount of bits.

摘要翻译： 一种对音频信号进行编码和解码的方法和装置。 在编码方法和装置中，可以从音频信号检测一个或多个重要的频率分量，可以对频率分量进行编码，然后对音频信号的包络进行编码。 在解码方法和装置中，考虑到频率分量的能量值，可以通过调整包含一个或多个重要频率分量的一个或多个频带的信封来解码音频信号。 因此，即使音频信号使用少量的比特进行编码或解码，也可以使编码效率最大化而不降低音频信号的声音质量。

公开(公告)号：US08560304B2

公开(公告)日：2013-10-15

申请号：US11877015

申请日：2007-10-23

申请人： Ki-hyun Choo ,  Anton Porov ,  Eun-mi Oh ,  Jung-hoo Kim

发明人： Ki-hyun Choo ,  Anton Porov ,  Eun-mi Oh ,  Jung-hoo Kim

IPC分类号： G10L19/14

CPC分类号： G10L19/0204 ,  G10L21/038

摘要： Provided is a method and apparatus for encoding or decoding a signal corresponding to a high frequency band in an audio signal. The method and apparatus for encoding a high frequency band detects and encodes frequency component(s) according to a pre-set criterion from a signal corresponding to a frequency band higher than a pre-set frequency and encodes energy value(s) of a signal to reconstruct band(s) in which the detected frequency component(s) are included. The method and apparatus for decoding a high frequency band decodes the signal by adjusting a signal to reconstruct a band in which important frequency component(s) are included by considering an energy value of the important frequency component(s). Accordingly, even though encoding or decoding is performed using a small number of bits, there is no degradation in sound quality of a signal corresponding to a high frequency band, and thus coding efficiency can be maximized.

摘要翻译： 提供了一种用于对与音频信号中的高频带相对应的信号进行编码或解码的方法和装置。 用于编码高频带的方法和装置根据来自对应于高于预定频率的频带的信号的预设标准来检测和编码频率分量，并对信号的能量值进行编码 以重建其中包括检测到的频率分量的频带。 用于解码高频带的方法和装置通过调整信号来重构信号，以通过考虑重要频率分量的能量值来重构其中包括重要频率分量的频带。 因此，即使使用少量的比特来进行编码或解码，也不会使与高频带对应的信号的声音质量下降，能够最大化编码效率。

公开(公告)号：US08265296B2

公开(公告)日：2012-09-11

申请号：US11924827

申请日：2007-10-26

申请人： Eun-mi Oh ,  Anton Porov ,  Jung-hoe Kim

发明人： Eun-mi Oh ,  Anton Porov ,  Jung-hoe Kim

IPC分类号： H04B15/00

CPC分类号： G10L19/028 ,  G10K11/002 ,  G10L19/0204

摘要： Provided is a method and apparatus for encoding/decoding an audio signal. Sections which are not used to output noise components near important spectral components and sub-bands which are not used to output noise components, are determined to be encoded or decoded, so that the efficiency of encoding and decoding an audio signal increases, and sound quality can be improved using less bits.

摘要翻译： 提供了一种用于对音频信号进行编码/解码的方法和装置。 不用于输出不用于输出噪声分量的重要频谱分量和子频带附近的噪声分量的部分被确定为编码或解码，使得音频信号的编码和解码效率提高，声音质量 可以使用较少的位来改进。

公开(公告)号：US07528750B2

公开(公告)日：2009-05-05

申请号：US11957589

申请日：2007-12-17

申请人： Jung-hoe Kim ,  Anton Porov ,  Eun-mi Oh

发明人： Jung-hoe Kim ,  Anton Porov ,  Eun-mi Oh

IPC分类号： H93M7/00

CPC分类号： H03M7/40

摘要： Encoding and decoding of an audio signal or a video signal. By performing entropy encoding and decoding based on a tree structure, coding efficiency is increased, complexity is reduced, and additional information can be reduced.

摘要翻译： 音频信号或视频信号的编码和解码。 通过基于树结构执行熵编码和解码，增加了编码效率，降低了复杂度，并且可以减少附加信息。

公开(公告)号：US08712062B2

公开(公告)日：2014-04-29

申请号：US13607991

申请日：2012-09-10

申请人： Eun-mi Oh ,  Anton Porov ,  Jung-hoe Kim

发明人： Eun-mi Oh ,  Anton Porov ,  Jung-hoe Kim

IPC分类号： H04B15/00

摘要： Provided is a method and apparatus for encoding/decoding an audio signal. Sections which are not used to output noise components near important spectral components and sub-bands which are not used to output noise components, are determined to be encoded or decoded, so that the efficiency of encoding and decoding an audio signal increases, and sound quality can be improved using less bits.

公开(公告)号：US09025778B2

公开(公告)日：2015-05-05

申请号：US13607991

申请日：2012-09-10

申请人： Eun-mi Oh ,  Anton Porov ,  Jung-hoe Kim

发明人： Eun-mi Oh ,  Anton Porov ,  Jung-hoe Kim

IPC分类号： H04B15/00 ,  G10L19/028 ,  G10L19/02

CPC分类号： G10L19/028 ,  G10K11/002 ,  G10L19/0204

摘要： Provided is a method and apparatus for encoding/decoding an audio signal. Sections which are not used to output noise components near important spectral components and sub-bands which are not used to output noise components, are determined to be encoded or decoded, so that the efficiency of encoding and decoding an audio signal increases, and sound quality can be improved using less bits.

公开(公告)号：US20080219455A1

公开(公告)日：2008-09-11

申请号：US11924827

申请日：2007-10-26

申请人： Eun-mi Oh ,  Anton Porov ,  Jung-hoe Kim

发明人： Eun-mi Oh ,  Anton Porov ,  Jung-hoe Kim

IPC分类号： H04R5/00

CPC分类号： G10L19/028 ,  G10K11/002 ,  G10L19/0204

摘要： Provided is a method and apparatus for encoding/decoding an audio signal. Sections which are not used to output noise components near important spectral components and sub-bands which are not used to output noise components, are determined to be encoded or decoded, so that the efficiency of encoding and decoding an audio signal increases, and sound quality can be improved using less bits.

摘要翻译： 提供了一种用于对音频信号进行编码/解码的方法和装置。 不用于输出不用于输出噪声分量的重要频谱分量和子频带附近的噪声分量的部分被确定为编码或解码，使得音频信号的编码和解码效率提高，声音质量 可以使用较少的位来改进。

公开(公告)号：US20080218390A1

公开(公告)日：2008-09-11

申请号：US11957589

申请日：2007-12-17

申请人： Jung-hoe Kim ,  Anton Porov ,  Eun-mi Oh

发明人： Jung-hoe Kim ,  Anton Porov ,  Eun-mi Oh

IPC分类号： H03M7/00

CPC分类号： H03M7/40

摘要： Encoding and decoding of an audio signal or a video signal. By performing entropy encoding and decoding based on a tree structure, coding efficiency is increased, complexity is reduced, and additional information can be reduced.

摘要翻译： 音频信号或视频信号的编码和解码。 通过基于树结构执行熵编码和解码，增加了编码效率，降低了复杂度，并且可以减少附加信息。

公开(公告)号：US20120328122A1

公开(公告)日：2012-12-27

申请号：US13607991

申请日：2012-09-10

申请人： Eun-mi Oh ,  Anton Porov ,  Jung-hoe Kim

发明人： Eun-mi Oh ,  Anton Porov ,  Jung-hoe Kim

IPC分类号： H04B15/00

CPC分类号： G10L19/028 ,  G10K11/002 ,  G10L19/0204

摘要： Provided is a method and apparatus for encoding/decoding an audio signal. Sections which are not used to output noise components near important spectral components and sub-bands which are not used to output noise components, are determined to be encoded or decoded, so that the efficiency of encoding and decoding an audio signal increases, and sound quality can be improved using less bits.

摘要翻译： 提供了一种用于对音频信号进行编码/解码的方法和装置。 不用于输出不用于输出噪声分量的重要频谱分量和子频带附近的噪声分量的部分被确定为编码或解码，使得音频信号的编码和解码效率提高，声音质量 可以使用较少的位来改进。

公开(公告)号：US20140156284A1

公开(公告)日：2014-06-05

申请号：US14123359

申请日：2012-06-01

申请人： Anton Porov ,  Konstantin Osipov ,  Ki-hyun Choo

发明人： Anton Porov ,  Konstantin Osipov ,  Ki-hyun Choo

IPC分类号： G10L19/008

CPC分类号： G10L19/0017 ,  G10L19/002 ,  G10L19/008 ,  G10L19/0204 ,  G10L19/032 ,  G10L19/167

摘要： Provided is an audio encoding method. The audio encoding method includes: acquiring envelopes based on a predetermined sub-band for an audio spectrum; quantizing the envelopes based on the predetermined sub-band; and obtaining a difference value between quantized envelopes for adjacent sub-bands and lossless encoding a difference value of a current sub-band by using a difference value of a previous sub-band as a context. Accordingly, the number of bits required to encode envelope information of an audio spectrum may be reduced in a limited bit range, thereby increasing the number of bits required to encode an actual spectral component.

摘要翻译： 提供了一种音频编码方法。 音频编码方法包括：基于用于音频频谱的预定子带获取信封; 基于预定的子带量化信封; 并且通过使用前一子带的差值作为上下文，获得相邻子带的量化包络之间的差值，并对当前子带的差值进行无损编码。 因此，编码音频频谱的包络信息所需的比特数可以在有限的比特范围内减少，由此增加编码实际频谱分量所需的比特数。