公开(公告)号：KR1020080114458A

公开(公告)日：2008-12-31

申请号：KR1020070106737

申请日：2007-10-23

Applicant: 삼성전자주식회사

Inventor： 오은미 ,  성호상 ,  주기현 ,  김중회 ,  김미영

IPC: G10L19/02 ,  H03M7/30

Abstract: A method and an apparatus for encoding and decoding a signal are provided to restore an audio signal and a voice signal into high quality signals by effectively encoding and decoding the audio signal and the voice signal with a small number of bits. Frequency or time resolution for each frequency band is determined by applying a psycho acoustic model. An input signal is converted according to the frequency or time resolution determined by each frequency band. The determined frequency or time resolution is compared with a predetermined value per each frequency band and selectively encoded by a predetermined method. The converted signal is quantized and encoded.

Abstract translation: 提供一种用于对信号进行编码和解码的方法和装置，通过有效地对具有少量位的音频信号和语音信号进行编码和解码，将音频信号和语音信号恢复为高质量信号。 通过应用心理声学模型来确定每个频带的频率或时间分辨率。 根据由每个频带确定的频率或时间分辨率转换输入信号。 将确定的频率或时间分辨率与每个频带的预定值进行比较，并通过预定方法选择性地编码。 转换的信号被量化和编码。

公开(公告)号：KR1020080099081A

公开(公告)日：2008-11-12

申请号：KR1020070044717

申请日：2007-05-08

Applicant: 삼성전자주식회사

Inventor： 주기현 ,  포로브안톤 ,  오은미 ,  김중회

IPC: G10L19/02 ,  H03M7/30

CPC classification number: G10L19/0208 ,  G10L19/093 ,  G10L19/18

Abstract: A method and an apparatus for encoding and decoding audio signals are provided to maximize coding efficiency since sound quality of audio signal is not lowered while using less bit in encoding and decoding. An encoding method of audio signal includes a step for detecting and encoding frequency components in an input signal according to set standards(2010,2015), and a step for calculating and encoding an energy value about the input signal according to band(2036,2037). A decoding method of audio signal includes a step for decoding frequency components, a step for decoding energy value of the signal prepared for each band, a step for calculating the energy value of the signal generated in each band in consideration of the energy value of the decoded frequency components based on the decoded energy value, a step for producing a signal having the calculated energy value according to band and a step for synthesizing the frequency components and the generated signals.

Abstract translation: 提供用于对音频信号进行编码和解码的方法和装置，以便在音频信号的音质不降低的同时在编码和解码中使用较少位的情况下使编码效率最大化。 音频信号的编码方法包括根据设定标准（2010,2015）对输入信号中的频率分量进行检测和编码的步骤，以及根据频带计算和编码关于输入信号的能量值的步骤（2036,2037 ）。 音频信号的解码方法包括对频率分量进行解码的步骤，对每个频带准备的信号的能量值进行解码的步骤，考虑到各频带的能量值，计算各频带中产生的信号的能量值的步骤 基于解码的能量值的解码频率分量，用于产生具有根据频带的所计算的能量值的信号的步骤和用于合成频率分量的步骤和所生成的信号。

公开(公告)号：KR1020080095492A

公开(公告)日：2008-10-29

申请号：KR1020070040043

申请日：2007-04-24

Applicant: 삼성전자주식회사

Inventor： 손창용 ,  오은미 ,  김중회 ,  주기현

IPC: G10L19/04 ,  G10L19/08

Abstract: A method for encoding an audio/speech signal in the time domain is provided to detect an envelop in a linear prediction analysis, apply an adjustable codebook and a fixed codebook adjustably, thereby improving compressing efficiency and audio quality by reflecting properties of an input signal when the audio/speech signal is encoded. An envelop of an input signal is detected according to the location of attack of the input signal. An adaptive codebook is searched according to the controlled resolution of parameter based on information about the attack of the input signal and the residual signal is encoded. A fixed codebook is searched based on the index controlled according to the location of the attack of the input signal and an excitation signal is encoded(33). In this way, the property of the input signal is reflected so that the audio/speech signal can be encoded effectively.

Abstract translation: 提供了一种用于在时域中对音频/语音信号进行编码的方法，以便在线性预测分析中检测包络，可调整地应用可调码本和固定码本，从而通过反映输入信号的属性来提高压缩效率和音频质量， 音频/语音信号被编码。 根据输入信号的攻击位置检测输入信号的包络。 根据参数的受控分辨率，根据输入信号的攻击信息搜索自适应码本，对残差信号进行编码。 基于根据输入信号的攻击位置控制的索引搜索固定码本，对激励信号进行编码（33）。 以这种方式，反映输入信号的性质，使得可以有效地编码音频/语音信号。

公开(公告)号：KR100851972B1

公开(公告)日：2008-08-12

申请号：KR1020060099425

申请日：2006-10-12

Applicant: 삼성전자주식회사

Inventor： 김중회 ,  오은미

IPC: G10L19/02

CPC classification number: G10L19/0017 ,  G10L19/008 ,  G10L19/24 ,  G10L21/038

Abstract: 본 발명은 계층적으로 오디오 데이터를 부호화하는 방법 및 장치, 오디오 데이터를 복호화하는 방법 및 장치에 관한 것으로, 오디오 데이터를 계층적으로 부호화하고, 적어도 하나 이상의 부호화 기법에 따라 오디오 데이터의 적어도 하나 이상의 확장 데이터를 부호화하고, 또한 이와 같은 방식으로 복호화함으로서 FGS를 그대로 지원하면서도 오디오 데이터의 확장성을 거의 무한하게 하였다.

公开(公告)号：KR1020080053739A

公开(公告)日：2008-06-16

申请号：KR1020060125663

申请日：2006-12-11

Applicant: 삼성전자주식회사

Inventor： 주기현 ,  오은미 ,  손창용 ,  김중회

IPC: G10L19/02 ,  G10L19/022

CPC classification number: G10L19/022

Abstract: A coding apparatus and a method for adaptively applying a window size are provided to improve a compression efficiency and sound quality and to apply a window size by a kind of subbands according to signal characteristics. A band dividing unit(100) divides an input signal into a plurality of subbands. A window size determining unit(110) determines a window size to be applied to each divided subband. A conversion unit(120) converts a signal of each subband from a time domain to a frequency domain with the determined window size. A quantization unit(130) quantizes the converted signals. The window size determining unit determines the window size by using an energy value of each divided subband or by using the degree in which a signal of each divided subband changes.

Abstract translation: 提供了一种用于自适应地应用窗口大小的编码装置和方法，以提高压缩效率和声音质量，并根据信号特性通过一种子带应用窗口大小。 频带分割单元（100）将输入信号划分成多个子带。 窗口尺寸确定单元（110）确定要应用于每个分割子带的窗口大小。 转换单元（120）将具有所确定的窗口大小的每个子带的信号从时域转换到频域。 量化单元（130）对转换的信号进行量化。 窗口尺寸确定单元通过使用每个分割子带的能量值或通过使用每个划分的子带的信号改变的程度来确定窗口大小。

公开(公告)号：KR1020080047230A

公开(公告)日：2008-05-28

申请号：KR1020060128945

申请日：2006-12-15

Applicant: 삼성전자주식회사

Inventor： 오은미 ,  주기현 ,  성호상 ,  손창용 ,  김중회 ,  이강은

IPC: H04N19/895 ,  H03M13/00 ,  G11B20/10

CPC classification number: G10L19/005 ,  G10L19/0212 ,  G10L19/022 ,  H03M13/00

Abstract: A method and an apparatus for concealing an error of an audio signal, and a method and an apparatus for decoding the audio signal by using the same are provided to apply a repeat method with an interpolation method of a frequency region, and to recover a frame having an error, thereby precluding sound quality from being lowered due to the modulation noise. When an error occurs in a present frame, one of a frequency section method and a time section method is selected to conceal the error. One of a repeat method and an interpolation method is selected to conceal the error by a pre-set standard when the frequency section method is selected(170,180). The error is concealed by the selected method. One of the frequency section method and the time section method is selected to conceal the error based on whether errors of previous and next frames occur and a window type.

Abstract translation: 提供一种用于隐藏音频信号的错误的方法和装置，以及用于通过使用它们对音频信号进行解码的方法和装置，以应用具有频率区域的内插方法的重复方法，并且恢复帧 具有错误，从而防止音质由于调制噪声而降低。 当在当前帧中发生错误时，选择频率部分方法和时间段方法之一来隐藏错误。 选择重复方法和插值方法之一，以选择频率段方法（170,180）以预设标准来隐藏误差。 所选方法隐藏错误。 选择频率部分方法和时间段方法之一，以便基于前一帧和下一帧的错误是否发生错误以及窗口类型来隐藏该错误。

公开(公告)号：KR1020080044707A

公开(公告)日：2008-05-21

申请号：KR1020060114102

申请日：2006-11-17

Applicant: 삼성전자주식회사

Inventor： 오은미 ,  손창용 ,  주기현 ,  김중회

IPC: G10L19/02 ,  H03M7/30

CPC classification number: G10L19/20 ,  G10L19/0204 ,  G10L19/0212 ,  G10L19/032

Abstract: A method and an apparatus for encoding and decoding an audio/speech signal are provided to encode and decode all of the speech signal, the audio signal, and a signal in which the speech signal and the audio signal are mixed efficiently. A domain converting unit(400) converts an input signal from a time domain to a frequency domain by the first conversion type and the second conversion type. A frequency domain encoding unit(430) encodes the signal converted by the first conversion type in the frequency domain by using the signal converted by the second conversion type.

Abstract translation: 提供了一种用于对音频/语音信号进行编码和解码的方法和装置，以对语音信号和音频信号全部进行编码和解码，并且语音信号和音频信号被有效地混合。 域转换单元（400）将来自时域的输入信号转换为第一转换类型和第二转换类型的频域。 频域编码单元（430）通过使用由第二转换类型转换的信号对频域中的第一转换类型转换的信号进行编码。

公开(公告)号：KR1020080006456A

公开(公告)日：2008-01-16

申请号：KR1020070066770

申请日：2007-07-03

Applicant: 삼성전자주식회사

Inventor： 김중회 ,  오은미

IPC: G10L19/008 ,  G10L19/24 ,  H04S5/00 ,  H03M7/30

CPC classification number: G10L19/008 ,  G10L19/167 ,  H04S3/02

Abstract: A method and an apparatus for encoding and decoding surround expansion data are provided to encode or decode additional information, capable of up-mixing an audio signal as a surround signal, as the expansion data. An audio data decoding unit(705) decodes audio data hierarchically encoded. A termination code detecting unit(720) detects an identification code indicating that a payload of the audio data is terminated. A start code detecting unit(725) detects an identification code indicating that the payload of expansion data is started. An expansion type detecting unit(730) detects a type of the expansion data. A judging unit judges whether or not the detected type indicates additional information for decoding the audio data by a surround type. If the detected type indicates the additional information, an expansion data decoding unit(735) decodes expansion data corresponding to the additional information.

Abstract translation: 提供了用于对环绕扩展数据进行编码和解码的方法和装置，以便将能够将音频信号上变频为环绕信号的附加信息编码或解码为扩展数据。 音频数据解码单元（705）解码分层编码的音频数据。 终端代码检测单元（720）检测指示音频数据的有效载荷终止的识别码。 起始码检测单元（725）检测指示扩展数据的有效载荷开始的识别码。 扩展型检测单元（730）检测扩展数据的类型。 判断单元判断所检测的类型是否指示用于通过环绕型解码音频数据的附加信息。 如果检测到的类型指示附加信息，则扩展数据解码单元（735）解码与附加信息相对应的扩展数据。

公开(公告)号：KR1020070108302A

公开(公告)日：2007-11-09

申请号：KR1020060067705

申请日：2006-07-19

Applicant: 삼성전자주식회사

Inventor： 김중회 ,  오은미

IPC: G10L19/008 ,  H03M7/30

Abstract: An encoding method for supporting scalability for the extension of audio data, an apparatus therefor, a decoding method therefor, and an apparatus therefor are provided to reinforce the scalability of audio data and offer backward compatibility capable of supporting an existing BSAC(Bit Sliced Arithmetic Coding) method. The first to the Nth BASC units(62-65) encode audio data and extension data of the audio data. A bit stream processing/transmitting unit(35) groups payloads which are results encoded by the first to the Nth BASC units(62-65) and interleaves the grouped payloads. The bit stream processing/transmitting unit(35) clears a partial group among the interleaved payloads and transmits the other groups.

Abstract translation: 提供了一种用于支持音频数据扩展的可扩展性的编码方法，其装置及其解码方法及其装置，以增强音频数据的可扩展性，并提供能够支持现有BSAC（位切片算术编码 ） 方法。 第一到第N个BASC单元（62-65）对音频数据的音频数据和扩展数据进行编码。 比特流处理/发送单元（35）对由第一至第N个BASC单元（62-65）编码的结果分组有效载荷并交织分组的有效载荷。 比特流处理/发送单元（35）清除交织的有效载荷中的部分组，并发送其他组。

公开(公告)号：KR1020070091586A

公开(公告)日：2007-09-11

申请号：KR1020070066769

申请日：2007-07-03

Applicant: 삼성전자주식회사

Inventor： 김중회 ,  오은미 ,  주기현

IPC: G10L19/008 ,  H04S3/00

CPC classification number: H04R5/02 ,  G10L19/008 ,  H04R5/033 ,  H04S1/002 ,  H04S3/00 ,  H04S3/002 ,  H04S3/02 ,  H04S2420/01 ,  H04S2420/07

Abstract: A method and an apparatus for generating a stereo signal are provided to reduce a system complexity for generating a 3D signal by using a surround data stream by applying an HRTF(Head Related Transfer Function) on a QMF domain. A demultiplexer(300) receives a surround data stream, which contains a down-mixed signal and a spatial parameter, from an encoder, and outputs a demultiplexed result. A domain converter(310) converts the down-mixed signal from the demultiplexer to a QMF(Quadrature Mirror Filter) domain signal. An up-mixer(320) receives the down-mixed signal from the domain converter, decodes the received signal, and up-mixes the decoded result to a multi-channel signal. A stereo signal generator(330) generates a 3D stereo signal on the QMF domain from the up-mixed multi-channel signal. A domain inverse-converter(340) inverse-converts the 3D stereo signal from a QMF domain to a time domain and outputs L-channel and R-channel signals.

Abstract translation: 提供一种用于产生立体声信号的方法和装置，以通过在QMF域上应用HRTF（头部相关传送函数）来通过使用环绕数据流来降低用于生成3D信号的系统复杂性。 解复用器（300）从编码器接收包含下混合信号和空间参数的环绕数据流，并输出解复用结果。 域转换器（310）将来自解复用器的下混合信号转换为QMF（正交镜像滤波器）域信号。 上混频器（320）接收来自域转换器的下混合信号，对接收到的信号进行解码，并将解码的结果上变频为多声道信号。 立体声信号发生器（330）从上混合的多声道信号在QMF域上产生3D立体声信号。 域逆变换器（340）将3D立体声信号从QMF域逆变换为时域，并输出L声道和R声道信号。