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1. 发明申请

US20070112565A1 Device, method, and medium for generating audio fingerprint and retrieving audio data 有权
标题翻译：用于生成音频指纹和检索音频数据的设备，方法和介质
公开(公告)号：US20070112565A1
公开(公告)日：2007-05-17
申请号：US11598134
申请日：2006-11-13
申请人： Hyounggook Kim , Yuan She , Kiwan Eom , Xuan Zhu , Jiyeun Kim
发明人： Hyounggook Kim , Yuan She , Kiwan Eom , Xuan Zhu , Jiyeun Kim
IPC分类号： G10L19/02
CPC分类号： G06Q30/0276 , G10L19/0212 , G10L25/48
摘要： Provided are device, method, and medium for generating an audio fingerprint and retrieving audio data. The device for generating an audio fingerprint includes: a coefficient extracting section partially decoding audio data in a compression area and extracting MDCT (Modified Discrete Cosine Transform) coefficients; a coefficient selecting section selecting an MDCT coefficient robust to noises from the extracted MDCT coefficients; a modulation spectrum generating section transforming the selected MDCT coefficient by the use of a Fourier transform method and generating a modulation spectrum; and a bit conversion section quantizing the generated modulation spectrum and generating an audio fingerprint. As a result, it is possible to accurately and rapidly retrieve the audio data recorded in a variety of environments. Since elements based on MP3 are used, it is possible to apply to MP3 applications in various manners. In addition, it is possible to apply to classification of audio data such as classification of music moods and classification of music genres and various other fields such as extraction of a specific event from moving images of sports.
摘要翻译：提供用于生成音频指纹和检索音频数据的设备，方法和介质。用于产生音频指纹的装置包括：系数提取部分，对压缩区域中的音频数据进行部分解码并提取MDCT（改进的离散余弦变换）系数; 系数选择部分，从提取的MDCT系数中选择对噪声鲁棒的MDCT系数; 调制频谱生成部，通过使用傅里叶变换方法变换所选择的MDCT系数，生成调制频谱; 以及比特转换部分，对生成的调制频谱进行量化并生成音频指纹。结果，可以准确且快速地检索记录在各种环境中的音频数据。由于使用基于MP3的元素，因此可以以各种方式应用于MP3应用。此外，可以应用于诸如音乐心情的分类和音乐流派的分类等音频数据的分类以及诸如从运动的运动图像中提取特定事件的各种其它领域。

2. 发明申请

US20070174274A1 Method and apparatus for searching similar music 审中-公开
标题翻译：用于搜索类似音乐的方法和设备
公开(公告)号：US20070174274A1
公开(公告)日：2007-07-26
申请号：US11487327
申请日：2006-07-17
申请人： Hyoung Kim , Ki Eom , Ji Kim , Yuan She , Xuan Zhu
发明人： Hyoung Kim , Ki Eom , Ji Kim , Yuan She , Xuan Zhu
IPC分类号： G06F17/30
CPC分类号： G06F16/683 , G06F16/634 , G06F16/68
摘要： A method of searching for similar music includes: extracting first features from music files usable to classify a music by a mood and a genre; classifying the music files according to the mood and the genre using the extracted first features; extracting second features from the music files so as to retrieve a similarity; storing both mood information and genre information on the classified music files and the extracted second features in a database; receiving an input of information on a query music; detecting a mood and a genre of the query music; measuring a similarity between the query music and the music files that are identical in mood and genre to the query music by referring to the database; and retrieving the similar music to the query music according to the measured similarity.
摘要翻译：搜索类似音乐的方法包括：从可用于通过情绪和类型对音乐进行分类的音乐文件中提取第一特征; 使用提取的第一特征根据心情和类型对音乐文件进行分类; 从音乐文件中提取第二特征以便检索相似性; 在数据库中存储分类音乐文件和提取的第二特征的情绪信息和类型信息; 接收关于查询音乐的信息的输入; 检测查询音乐的情绪和类型; 通过参考数据库来测量查询音乐和心情和类型与查询音乐相同的音乐文件之间的相似度; 以及根据测量的相似度将相似的音乐检索到查询音乐。

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