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    • 1. 发明申请
    • METHOD AND APPARATUS FOR ENCODING/DECODING AUDIO DATA WITH SCALABILITY
    • 用于编码/解码具有可扩展性的音频数据的方法和装置
    • US20120101825A1
    • 2012-04-26
    • US13280030
    • 2011-10-24
    • Jung-hoe KIMSang-wook KimEun-mi Oh
    • Jung-hoe KIMSang-wook KimEun-mi Oh
    • G10L19/00
    • G10L19/24
    • Method and apparatus for encoding/decoding audio data with scalability are provided. The method includes slicing audio data to correspond to a plurality of layers, obtaining scale band information and coding band information corresponding to each of the plurality of layers, coding additional information containing scale factor information and coding model information based on scale band information and coding band information corresponding to a first layer, obtaining quantized samples by quantizing audio data corresponding to the first layer with reference to the scale factor information, coding the obtained plurality of quantized samples in units of symbols in order from respective symbols formed with most significant bits (MSB) to least significant bits (LSB) based on the coding model information, and repeating, until coding for the plurality of layers is finished. Accordingly, fine grain scalability can be provided with lower complexity and better audio quality even in a lower layer.
    • 提供了用于以可扩展性对音频数据进行编码/解码的方法和装置。 该方法包括对音频数据进行切片以对应于多个层,获取与多个层中的每一层相对应的尺度带信息和编码频带信息,根据比例因子信息编码附加信息和基于尺度带信息和编码频带编码模型信息 对应于第一层的信息,通过参照比例因子信息量化对应于第一层的音频数据来获得量化样本,以从符号形式开始的各个符号按顺序对所获得的多个量化样本进行编码(MSB )到基于编码模型信息的最低有效位(LSB),并且直到完成多层的编码为止。 因此,即使在较低的层中,也可以提供更低的复杂度和更好的音频质量的细粒度可扩展性。
    • 2. 发明授权
    • Method and apparatus for encoding/decoding audio data with scalability
    • 具有可扩展性的音频数据的编码/解码方法和装置
    • US08046234B2
    • 2011-10-25
    • US10735894
    • 2003-12-16
    • Jung-hoe KimSang-wook KimEun-mi Oh
    • Jung-hoe KimSang-wook KimEun-mi Oh
    • G10L19/00
    • G10L19/24
    • Method and apparatus for encoding/decoding audio data with scalability are provided. The method includes slicing audio data so that sliced audio data corresponds to a plurality of layers, obtaining scale band information and coding band information corresponding to each of the plurality of layers, coding additional information containing scale factor information and coding model information based on scale band information and coding band information corresponding to a first layer, obtaining quantized samples by quantizing audio data corresponding to the first layer with reference to the scale factor information, coding the obtained plurality of quantized samples in units of symbols in order from a symbol formed with most significant bits (MSB) down to a symbol formed with least significant bits (LSB) by referring to the coding model information, and repeatedly performing the steps with increasing the ordinal number of the layer one by one every time, until coding for the plurality of layers is finished. According to the method, fine grain scalability (FGS) can be provided with a lower complexity and a better audio quality can be provided even in a lower layer.
    • 提供了用于以可扩展性对音频数据进行编码/解码的方法和装置。 该方法包括对音频数据进行切片,使切片的音频数据对应于多个层,获得与多个层中的每一层相对应的尺度带信息和编码频带信息,编码包含比例因子信息的附加信息和基于比例带的编码模型信息 信息和编码频带信息,通过参照比例因子信息量化与第一层相对应的音频数据来获得量化样本,以从符号形式开始的符号顺序对所获得的多个量化样本进行编码 通过参考编码模型信息将有效位(MSB)下降到由最低有效位(LSB)形成的符号,并且每次都逐个增加层数的顺序重复执行步骤,直到多个 层完成。 根据该方法,可以提供细小的可缩放性(FGS),具有较低的复杂度,即使在较低层也可提供更好的音频质量。
    • 3. 发明授权
    • Apparatus and method for processing audio signal and computer readable recording medium storing computer program for the method
    • 用于处理音频信号的装置和方法以及存储该方法的计算机程序的计算机可读记录介质
    • US07561933B2
    • 2009-07-14
    • US10793098
    • 2004-03-05
    • Eun-mi OhSang-wook KimSang-jo LeeMi-young Kim
    • Eun-mi OhSang-wook KimSang-jo LeeMi-young Kim
    • G06F17/00G06F15/16
    • H04H20/82
    • An audio signal processing apparatus and method and a computer readable recording medium storing a computer program for the method are provided. The audio signal processing apparatus includes: an input unit that receives the audio signal; and a signal processing unit that processes the audio signal received from the input unit using at least one of network information and terminal information and signal information, wherein the network information refers to information regarding the network, the status of the network varies at any time, the terminal information refers to information regarding the terminal, the status of the terminal varies at any time, and the signal information refers to information on the audio signal. The audio signal can be efficiently streamed in real-time using the network information and/or the terminal information, which vary at any time, so that the audio signal transmitted from, for example, a server side, can be seamlessly received by a terminal and can be reproduced at optimal, high sound quality by the terminal.
    • 提供一种存储用于该方法的计算机程序的音频信号处理装置和方法以及计算机可读记录介质。 音频信号处理装置包括:接收音频信号的输入单元; 以及信号处理单元,其使用网络信息和终端信息和信号信息中的至少一个来处理从输入单元接收的音频信号,其中网络信息涉及关于网络的信息,网络的状态随时变化, 终端信息是指关于终端的信息,终端的状态随时变化,信号信息是参照音频信号的信息。 可以使用在任何时间变化的网络信息和/或终端信息来实时有效地流式传输音频信号,使得从例如服务器侧发送的音频信号可以由终端无缝地接收 并可以通过终端以最佳,高音质再现。
    • 4. 发明授权
    • Scalable lossless audio coding/decoding apparatus and method
    • 可扩展无损音频编码/解码装置及方法
    • US07617097B2
    • 2009-11-10
    • US10366348
    • 2003-02-14
    • Doh-hyung KimSang-wook KimJung-hoe Kim
    • Doh-hyung KimSang-wook KimJung-hoe Kim
    • G10L19/02
    • G10L19/24G10L19/0017H03M7/4006
    • A scalable lossless audio coding/decoding apparatus and method are provided. The scalable lossless audio coding apparatus includes a lossy coding unit which lossy codes an input audio signal and generates a lossy bitstream, a lossy signal regenerating unit which decodes the lossy bitstream, compares a decoded signal with the input audio signal, and regenerates a lossy signal that is lost when lossy coding is implemented, a lossless coding unit which lossless codes the lossy signal and generates the result of lossless coding as a lossless bitstream, and a multiplexing unit which multiplexes the lossy bitstream with the lossless bitstream and generates one output bitstream. The lossy-coded lossy bitstream is mixed with the lossless-coded lossless bitstream, thereby one output bitstream is generated and transmitted, and the lossy audio signal in which only the lossy bitstream is restored from the output bitstream or the lossless audio signal in which the lossy bitstream and the lossless bitstream are restored and mixed with each other can be selectively generated.
    • 提供了一种可扩展的无损音频编码/解码装置和方法。 可扩展无损音频编码装置包括有损编码输入音频信号并产生有损比特流的有损编码单元,对有损比特流进行解码的有损信号再生单元,将解码信号与输入音频信号进行比较,再生有损信号 在实现有损编码时丢失的无损编码单元,其对无损编码无损编码的无损编码单元作为无损比特流生成无损编码的结果;以及多路复用单元,其将有损比特流与无损比特流复用并生成一个输出比特流。 有损编码的有损比特流与无损编码的无损比特流混合,由此产生和发送一个输出比特流,并且其中只有有损比特流从输出比特流或无损音频信号中恢复的有损音频信号,其中 可以选择性地生成有损比特流和无损比特流彼此恢复和混合。