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US08990072B2 Apparatus and method for encoding and decoding of integrated speech and audio utilizing a band expander to output the audio or speech to a frequency domain encoder or an LPC encoder 有权
使用频带扩展器对综合语音和音频进行编码和解码的装置和方法，以将音频或语音输出到频域编码器或LPC编码器

Apparatus and method for encoding and decoding of integrated speech and audio utilizing a band expander to output the audio or speech to a frequency domain encoder or an LPC encoder
摘要：
Provided are an apparatus and a method for integrally encoding and decoding a speech signal and a audio signal. The encoding apparatus may include: an input signal analyzer to analyze a characteristic of an input signal; a first conversion encoder to convert the input signal to a frequency domain signal, and to encode the input signal when the input signal is a audio characteristic signal; a Linear Predictive Coding (LPC) encoder to perform LPC encoding of the input signal when the input signal is a speech characteristic signal; a frequency band expander for expanding a frequency band of the input signal whose output is transmitted to either the first conversion encoder or the LPC encoder based on the input characteristic; and a bitstream generator to generate a bitstream using an output signal of the first conversion encoder and an output signal of the LPC encoder.
摘要（中）：

提供了一种用于对语音信号和音频信号进行整体编码和解码的装置和方法。 编码装置可以包括：输入信号分析器，用于分析输入信号的特性; 第一转换编码器，用于将输入信号转换为频域信号，并且在输入信号是音频特征信号时对输入信号进行编码; 线性预测编码（LPC）编码器，用于当输入信号是语音特征信号时执行输入信号的LPC编码; 频带扩展器，用于根据输入特性将输出信号的频带扩展到第一转换编码器或LPC编码器; 以及比特流发生器，用于使用第一转换编码器的输出信号和LPC编码器的输出信号来产生比特流。

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