为此，基于内容的音频检索技术应运而生。
This paper reviews the research works and recent advances in audio retrieval, summarize content-based audio retrieval method.
基于内容的音频检索已成为多媒体检索技术的研究热点。
Content-based audio retrieval has been the studied hotspot of multimedia retrieval.
音频特征提取是音频分类的基础，而音频分类又是基于内容的音频检索的关键。
Feature extraction is the foundation of audio classification, while audio classification is a key of content based audio retrieval.
基于内容的多媒体检索，包括图像、音频和视频等信息的检索，本文主要是对基于内容的图像检索进行了研究。
Content Based Multimedia retrieval includes the image, audio and video retrieval, among which this paper does the most research on the image retrieval.
基于内容的音频音乐检索一直是音乐信息组织研究的难点。
Content-based audio music retrieval is always a difficult part of the research of musical information organization.
本文介绍了多媒体信息检索的原理与特点，着重阐述了基于内容的图像检索、视频检索和音频检索技术。
This paper introduces the principle and characteristics of multimedia information retrieval and elucidates content-based multimedia retrieval technology of image, video and audio.
本文介绍了多媒体信息检索的原理与特点，着重阐述了基于内容的图像检索、视频检索和音频检索技术。
This paper proposes a novel cross-media retrieval approach, which can process multimedia data of different modalities and measure cross-media similarity, such as image-audio similarity.
本文介绍了多媒体信息检索的原理与特点，着重阐述了基于内容的图像检索、视频检索和音频检索技术。
This paper proposes a novel cross-media retrieval approach, which can process multimedia data of different modalities and measure cross-media similarity, such as image-audio similarity.
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