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    Audio Encoder and Decoder for Encoding and Decoding Frames of a Sampled Audio Signal
    7.
    发明申请
    Audio Encoder and Decoder for Encoding and Decoding Frames of a Sampled Audio Signal 有权
    音频编码器和解码器，用于对采样音频信号的帧进行编码和解码

    公开(公告)号：US20110173011A1

    公开(公告)日：2011-07-14

    申请号：US13004475

    申请日：2011-01-11

    申请人： Ralf Geiger ,  Bernhard Grill ,  Bruno Bessette ,  Philippe Gournay ,  Guillaume Fuchs ,  Markus Multrus ,  Max Neuendorf ,  Gerald Schuller

    发明人： Ralf Geiger ,  Bernhard Grill ,  Bruno Bessette ,  Philippe Gournay ,  Guillaume Fuchs ,  Markus Multrus ,  Max Neuendorf ,  Gerald Schuller

    IPC分类号： G10L19/00

    CPC分类号： G10L19/0212 ,  G10L19/04

    摘要： An audio encoder adapted for encoding frames of a sampled audio signal to obtain encoded frames, wherein a frame includes a number of time domain audio samples. The audio encoder includes a predictive coding analysis stage for determining information on coefficients of a synthesis filter and a prediction domain frame based on a frame of audio samples. The audio encoder further includes a time-aliasing introducing transformer for transforming overlapping prediction domain frames to the frequency domain to obtain prediction domain frame spectra, wherein the time-aliasing introducing transformer is adapted for transforming the overlapping prediction domain frames in a critically-sampled way. Moreover, the audio encoder includes a redundancy reducing encoder for encoding the prediction domain frame spectra to obtain the encoded frames based on the coefficients and the encoded prediction domain frame spectra.

    摘要翻译： 一种音频编码器，适于编码采样的音频信号的帧以获得编码的帧，其中帧包括多个时域音频采样。 音频编码器包括用于基于音频样本的帧来确定关于合成滤波器和预测域帧的系数的信息的预测编码分析阶段。 音频编码器还包括时间混叠引入变压器，用于将重叠的预测域帧转换到频域以获得预测域帧频谱，其中时间混叠引入变压器适于以重要取样的方式变换重叠的预测域帧 。 此外，音频编码器包括冗余减少编码器，用于根据系数和编码的预测域帧频谱对预测域帧频谱进行编码以获得编码的帧。

    Audio coder/decoder with predictive coding of synthesis filter and critically-sampled time aliasing of prediction domain frames
    8.
    发明授权
    Audio coder/decoder with predictive coding of synthesis filter and critically-sampled time aliasing of prediction domain frames 有权
    具有合成滤波器的预测编码和预测域帧的临时采样时间混叠的音频编码器/解码器

    公开(公告)号：US08595019B2

    公开(公告)日：2013-11-26

    申请号：US13004475

    申请日：2011-01-11

    申请人： Ralf Geiger ,  Bernhard Grill ,  Bruno Bessette ,  Philippe Gournay ,  Guillaume Fuchs ,  Markus Multrus ,  Max Neuendorf ,  Gerald Schuller

    发明人： Ralf Geiger ,  Bernhard Grill ,  Bruno Bessette ,  Philippe Gournay ,  Guillaume Fuchs ,  Markus Multrus ,  Max Neuendorf ,  Gerald Schuller

    IPC分类号： G10L19/00 ,  G10L19/02 ,  G10L19/04

    CPC分类号： G10L19/0212 ,  G10L19/04

    摘要： An audio encoder adapted for encoding frames of a sampled audio signal to obtain encoded frames, wherein a frame includes a number of time domain audio samples. The audio encoder includes a predictive coding analysis stage for determining information on coefficients of a synthesis filter and a prediction domain frame based on a frame of audio samples. The audio encoder further includes a time-aliasing introducing transformer for transforming overlapping prediction domain frames to the frequency domain to obtain prediction domain frame spectra, wherein the time-aliasing introducing transformer is adapted for transforming the overlapping prediction domain frames in a critically-sampled way. Moreover, the audio encoder includes a redundancy reducing encoder for encoding the prediction domain frame spectra to obtain the encoded frames based on the coefficients and the encoded prediction domain frame spectra.

    摘要翻译： 一种音频编码器，适于编码采样的音频信号的帧以获得编码的帧，其中帧包括多个时域音频采样。 音频编码器包括用于基于音频样本的帧来确定关于合成滤波器和预测域帧的系数的信息的预测编码分析阶段。 音频编码器还包括时间混叠引入变压器，用于将重叠的预测域帧转换到频域以获得预测域帧频谱，其中时间混叠引入变压器适于以重要取样的方式变换重叠的预测域帧 。 此外，音频编码器包括冗余减少编码器，用于根据系数和编码的预测域帧频谱对预测域帧频谱进行编码以获得编码的帧。

    Audio encoder/decoder with switching between first and second encoders/decoders using first and second framing rules
    9.
    发明授权
    Audio encoder/decoder with switching between first and second encoders/decoders using first and second framing rules 有权
    音频编码器/解码器，其使用第一和第二成帧规则在第一和第二编码器/解码器之间切换

    公开(公告)号：US08892449B2

    公开(公告)日：2014-11-18

    申请号：US13004400

    申请日：2011-01-11

    申请人： Jeremie Lecomte ,  Philippe Gournay ,  Stefan Bayer ,  Markus Multrus ,  Bruno Bessette ,  Bernhard Grill

    发明人： Jeremie Lecomte ,  Philippe Gournay ,  Stefan Bayer ,  Markus Multrus ,  Bruno Bessette ,  Bernhard Grill

    IPC分类号： G10L19/00 ,  G10L19/022 ,  G10L19/20

    CPC分类号： G10L19/20 ,  G10L19/022

    摘要： An audio encoder for encoding audio samples has a first time domain aliasing introducing encoder configured to decode audio samples in a first encoding domain and having a first framing rule, a start window and a stop window. The audio encoder further has a second encoder configured to encode samples in a second encoding domain and having a predetermined frame size number of audio samples, and a coding warm-up period number of audio samples, the second encoder having a different second framing rule, a frame of the second encoder being an encoded representation of a number of successive audio samples that is equal to the predetermined frame size number of audio samples. The audio encoder further has a controller switching from the first to the second encoder and for modifying the second framing rule or for modifying the start or the stop window of the first encoder.

    摘要翻译： 用于编码音频样本的音频编码器具有第一时域混叠引入编码器，其被配置为对第一编码域中的音频样本进行解码，并且具有第一成帧规则，起始窗口和停止窗口。 音频编码器还具有第二编码器，其被配置为对第二编码域中的样本进行编码并具有预定的帧大小的音频样本，以及编码预热周期数量的音频样本，第二编码器具有不同的第二成帧规则， 第二编码器的帧是等于音频样本的预定帧大小数目的多个连续音频采样的编码表示。 音频编码器还具有从第一编码器切换到第二编码器并且用于修改第二成帧规则或用于修改第一编码器的起始或停止窗口的控制器。

    Audio Encoder and Decoder for Encoding and Decoding Audio Samples
    10.
    发明申请
    Audio Encoder and Decoder for Encoding and Decoding Audio Samples 有权
    用于编码和解码音频样本的音频编码器和解码器

    公开(公告)号：US20110173010A1

    公开(公告)日：2011-07-14

    申请号：US13004400

    申请日：2011-01-11

    申请人： Jeremie Lecomte ,  Philippe Gournay ,  Stefan Bayer ,  Markus Multrus ,  Bruno Bessette ,  Bernhard Grill

    发明人： Jeremie Lecomte ,  Philippe Gournay ,  Stefan Bayer ,  Markus Multrus ,  Bruno Bessette ,  Bernhard Grill

    IPC分类号： G10L19/00

    CPC分类号： G10L19/20 ,  G10L19/022

    摘要： An audio encoder for encoding audio samples has a first time domain aliasing introducing encoder configured to decode audio samples in a first encoding domain and having a first framing rule, a start window and a stop window. The audio encoder further has a second encoder configured to encode samples in a second encoding domain and having a predetermined frame size number of audio samples, and a coding warm-up period number of audio samples, the second encoder having a different second framing rule, a frame of the second encoder being an encoded representation of a number of successive audio samples that is equal to the predetermined frame size number of audio samples. The audio encoder further has a controller switching from the first to the second encoder and for modifying the second framing rule or for modifying the start or the stop window of the first encoder.

    摘要翻译： 用于编码音频样本的音频编码器具有第一时域混叠引入编码器，其被配置为对第一编码域中的音频样本进行解码，并且具有第一成帧规则，起始窗口和停止窗口。 音频编码器还具有第二编码器，其被配置为对第二编码域中的样本进行编码并具有预定的帧大小的音频样本，以及编码预热周期数量的音频样本，第二编码器具有不同的第二成帧规则， 第二编码器的帧是等于音频样本的预定帧大小数目的多个连续音频采样的编码表示。 音频编码器还具有从第一编码器切换到第二编码器并且用于修改第二成帧规则或用于修改第一编码器的起始或停止窗口的控制器。