The contents in the paper include acoustic image preprocessing, feature extraction of texture and shape, and classifier design.

内容涉及声图像的预处理、纹理和形状特征的提取，以及分类器的设计等。

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A whole continuous speech recognition system includes four parts: feature extraction, acoustic model, language models and search algorithms, and the thesis is carried out according to them.

完整的连续语音识别系统主要包括四个部分：特征提取，声学模型，语言模型和搜索算法，本文就是根据这四个部分展开的。

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Using this feature extraction and classification algorithm, this article classifies the practical acoustic signals from the truck, car and bus.

将上述特征提取及分类算法对实测的卡车、轿车和中巴车三种车型的噪声信号样本进行分类。

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