专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20020005110A1 Rhythm feature extractor 有权
公开(公告)号：US20020005110A1
公开(公告)日：2002-01-17
申请号：US09827550
申请日：2001-04-05
发明人： Francois Pachet , Olivier Delerue
IPC分类号： G10H001/40
CPC分类号： G10H1/40 , G10H2210/071
摘要： The invention relates to a method of extracting a representation of its rhythmic structure, from a given signal. The representation is designed to yield a similarity relation between item titles. There is thus provided a method of extracting the numeric representation of a rhythmic structure for a given item of audio signal, from a database including percussive sounds in an audio signal, comprising the steps of: a) defining said rhythmic structure as a superposition of time series, each of said time series representing a temporal contribution for one of said percussive sounds in an audio signal; b) processing said input signal through a spectral analysis technique, so as to select said rhythmic information contained in said input signal; c) constructing said numeric representation of a rhythmic structure of said input signal by combining a plurality of initial time series; and d) reducing said rhythmic information contained in said plurality of time series by analyzing correlations products thereof, thereby extracting a reduced rhythmic information for an item of audio signal. The method may be combined with the step of e) effecting a distance measure between the items of audio signal on the basis of said reduced rhythmic information, whereby an item of audio signal having similar rhythm is selected.

2. 发明申请

US20040237759A1 Personalizing content 审中-公开
标题翻译：个性化内容
公开(公告)号：US20040237759A1
公开(公告)日：2004-12-02
申请号：US10448469
申请日：2003-05-30
发明人： David S. Bill
IPC分类号： G10H001/40 , G10H005/00
CPC分类号： G10H1/40 , G06F16/40 , G06F16/639 , G06F16/68 , G06F16/683 , G10H2240/081 , G10H2240/131
摘要： Generally, a mood-based playlisting system may select content to maintain a mood consistency between selections of content. In one example, electronic content may be made available to users by determining a mood indicator indicating a present mood state of a user, determining a mood spectrum describing mood indicators that are consistent with the mood indicator for the track, and selecting a next track having a mood indicator that lies within the mood spectrum. In another example, content may be selected by determining a coordinate mood location indicating the present mood state of a user, determining a compatible mood volume indicating potential mood indicators for a next track that is compatible with the present mood, identifying one or more tracks having mood indicators that lie within the compatible mood volume, and enabling the user to access one or more of the identified tracks.
摘要翻译：通常，基于情绪的播放列表系统可以选择内容以保持内容选择之间的情绪一致性。在一个示例中，可以通过确定指示用户的当前情绪状态的心情指示符，确定描述与轨道的心情指示符一致的情绪指示符的情绪频谱，并选择具有情绪指标位于情绪频谱内。在另一示例中，可以通过确定指示用户的当前情绪状态的坐标情绪位置来确定内容，确定指示与当前情绪兼容的下一个音轨的潜在情绪指示符的兼容心情音量，识别具有位于兼容心情体积内的情绪指示器，并且使用户能够访问一个或多个所识别的轨迹。

3. 发明申请

US20040060426A1 System and methods for providing automatic classification of media entities according to tempo properties 有权
标题翻译：根据速度属性提供媒体实体的自动分类的系统和方法
公开(公告)号：US20040060426A1
公开(公告)日：2004-04-01
申请号：US10667961
申请日：2003-09-22
申请人： Microsoft Corporation
发明人： Christopher B. Weare , Marc Daskalovic
IPC分类号： G10H001/40 , G10H005/00
CPC分类号： G06F17/30758 , G06F17/30038 , G06F17/30743 , G06F17/30761 , G06F17/30766 , G06F17/30772 , G11B27/105 , G11B27/28 , H04N21/466 , H04N21/4665
摘要： In connection with a classification system for classifying media entities that merges perceptual classification techniques and digital signal processing classification techniques for improved classification of media entities, a system and methods are provided for automatically classifying and characterizing tempo properties of media entities. Such a system and methods may be useful for the indexing of a database or other storage collection of media entities, such as media entities that are audio files, or have portions that are audio files. The methods also help to determine media entities that have similar, or dissimilar as a request may indicate, tempo(s) by utilizing classification chain techniques that test distances between media entities in terms of their properties. For example, a neighborhood of songs may be determined within which each song has similar tempo characteristics.
摘要翻译：结合用于对感知分类技术进行分类的媒体实体分类系统和用于改进媒体实体分类的数字信号处理分类技术，提供了一种系统和方法，用于自动分类和表征媒体实体的速度属性。这样的系统和方法可能对于媒体实体的数据库或其他存储集合的索引（例如作为音频文件的媒体实体或具有音频文件的部分）是有用的。这些方法还有助于通过利用分类链技术来确定与请求可能指示的类似或不相似的媒体实体，这些分类链技术根据媒体实体的属性来测试媒体实体之间的距离。例如，可以确定每首歌曲具有相似的速度特征的歌曲附近。

4. 发明申请

US20020017188A1 Automatic musical composition method and apparatus 失效
标题翻译：自动组合方法和装置
公开(公告)号：US20020017188A1
公开(公告)日：2002-02-14
申请号：US09898998
申请日：2001-07-03
申请人： YAMAHA CORPORATION
发明人： Eiichiro Aoki
IPC分类号： G10H001/40
CPC分类号： G10H1/36 , G10H2210/151 , G10H2210/261 , Y10S84/12 , Y10S84/22
摘要： In accordance with a rhythm of a main melody, a auxiliary-melody or counter-melody creating rhythm pattern is supplied which indicates timing of respective hit points of a plurality of tones in the auxiliary or counter melody. Predetermined important hit points and unimportant hit points in the supplied rhythm pattern are discriminated from each other. Any one of component notes of chords, specified by a previously-supplied chord progression, is allocated to each of the thus-discriminated important hit points, while any one of scale notes, corresponding to previously-supplied scale information, is allocated to each of the unimportant hit points. Thus, an auxiliary or counter melody is created on the basis of the notes allocated to the individual hit pints.
摘要翻译：根据主旋律的节奏，提供辅助旋律或反旋律创建节奏模式，其指示辅助或对照旋律中的多个音调的各个命中点的定时。所提供的节奏模式中的预定重要生命值和不重要的生命值被相互区分开。由先前提供的和弦进程指定的和弦的组成音符中的任何一个被分配给每个这样被辨别的重要命中点，而对应于先前提供的比例信息的任何一个比例音符被分配给不重要的生命值。因此，根据分配给各个命中品脱的笔记创建辅助或对照旋律。

5. 发明申请

US20010015123A1 Apparatus and method for detecting performer's motion to interactively control performance of music or the like 有权
标题翻译：用于检测演员运动以交互地控制音乐等的表现的装置和方法
公开(公告)号：US20010015123A1
公开(公告)日：2001-08-23
申请号：US09758632
申请日：2001-01-10
发明人： Yoshiki Nishitani , Satoshi Usa , Masaki Sato , Eiko Kobayashi
IPC分类号： G10H001/053 , G10H001/40 , G10H001/46
CPC分类号： A63B71/0686 , A63B69/0028 , A63B2071/0625 , A63B2071/0647 , A63B2220/30 , A63B2220/34 , A63B2220/40 , A63B2220/803 , A63B2220/805 , A63B2225/50 , A63B2230/00 , A63B2230/065 , A63B2230/62 , G10H1/00 , G10H2220/135 , G10H2220/206 , G10H2220/371 , G10H2220/395 , G10H2240/211
摘要： Performance interface system includes a motion detector provided for movement with a performer, and a control system for receiving detection data transmitted from the motion detector and controlling a performance of a tone in response to the received detection data. State of a performer's motion is detected via a sensor of the motion detector, and detection data representative of the detected motion state is transmitted to the control system. The control system receives the detection data from the motion detector, analyzes the performer's motion on the basis of the detection data, and then controls a tone performance in accordance with the analyzed data. With this arrangement, the performer can readily take part in the tone performance in the control system. For example, as the performer moves his or her hand, leg or trunk while listening to a manual or automatic performance of a music piece being carried out by a performance apparatus of the control system, the motion detector detects the performer's motion and transmits corresponding detection data to the control system, which in turn variably controls a predetermined one of tonal factors in the music piece performance. This arrangement can readily provide interactive performance control and thereby allows an inexperienced or unskilled performer to take part in a performance with enjoyment.
摘要翻译：性能接口系统包括提供用于与执行者一起移动的运动检测器，以及用于接收从运动检测器发送的检测数据和响应于接收到的检测数据来控制音调的性能的控制系统。通过运动检测器的传感器检测执行者运动的状态，并将表示检测到的运动状态的检测数据发送到控制系统。控制系统从运动检测器接收检测数据，根据检测数据对执行者的运动进行分析，然后根据分析数据控制色调性能。通过这种安排，表演者可以容易地参与控制系统中的音色表现。例如，当听众手动或自动执行由控制系统的演奏装置执行的乐曲时，表演者移动他或她的手，腿或躯干，运动检测器检测演员的运动并发送相应的检测数据到控制系统，控制系统又可变地控制音乐作品中的预定音调因素。这种布置可以容易地提供交互式的性能控制，从而允许没有经验的或不熟练的表演者享受表演。

6. 发明申请

US20040094019A1 Apparatus for analyzing an audio signal with regard to rhythm information of the audio signal by using an autocorrelation function 有权
标题翻译：用于通过使用自相关函数来分析关于音频信号的节奏信息的音频信号的装置
公开(公告)号：US20040094019A1
公开(公告)日：2004-05-20
申请号：US10713691
申请日：2003-11-14
发明人： Jurgen Herre , Jan Rohden , Christian Uhle , Markus Cremer
IPC分类号： G10H001/40 , G10H005/00 , G10H007/00
CPC分类号： G10L19/0208 , G10H1/40 , G10H2210/076 , G10H2250/135 , G10L25/06 , G10L25/90
摘要： An apparatus for analyzing an audio signal with regard to rhythm information of the audio signal by using an autocorrelation function comprises a filter bank for separating the audio signal into at least two sub-band signals. The sub-band signals are examined with regard to periodicities by an autocorrelation function, to obtain rhythm raw-information for the at least two sub-band signals. To reduce or eliminate the ambiguities of the autocorrelation function for periodical signals, the rhythm raw-information is postprocessed to obtain post-processed rhythm raw-information for the sub-band signal. The rhythm information of the audio signal is established based on the postprocessed rhythm raw-information. By the sub-band-wise ACF postprocessing, ACF ambiguities are already eliminated where they originate, and rhythm portions are added at double tempi, which an autocorrelation function processing does normally not provide, so that, as a result, a more robust determination of the rhythm information of the audio signal arises.
摘要翻译：用于通过使用自相关函数来分析关于音频信号的节奏信息的音频信号的装置包括用于将音频信号分离成至少两个子带信号的滤波器组。通过自相关函数检查子带信号的周期性，以获得用于至少两个子带信号的节奏原始信息。为了减少或消除周期信号的自相关函数的不确定性，后处理节奏原始信息以获得用于子带信号的后处理节奏原始信息。基于后处理的节奏原始信息建立音频信号的节奏信息。通过子带式ACF后处理，ACF模糊度已经被消除，它们起源，并且节奏部分以双重温度被添加，自相关函数处理通常不提供，因此，结果是更稳健地确定音频信号的节奏信息出现。

7. 发明申请

US20040000226A1 Electronic metronome 审中-公开
标题翻译：电子节拍器
公开(公告)号：US20040000226A1
公开(公告)日：2004-01-01
申请号：US10382048
申请日：2003-03-05
申请人： RIC Company, Ltd.
发明人： Yoshiaki Sakamoto
IPC分类号： G10H001/40 , G10H007/00
CPC分类号： A63B71/0686 , G04F5/025
摘要： With a clip and a lower casing sandwiching a concha of a user so that the lower casing is positioned on the ear, a speaker generates a rhythm tone with a small volume in the vicinity of an ear hole of the user. A rhythm speed and type of the rhythm tone are set by operating switches with reference to a liquid crystal display. An integrated circuit has a memory device for holding recorded data of an analog sound and a reproducing device for reproducing an analog electrical signal from the recorded data according to the set rhythm speed and type to actuate the speaker.
摘要翻译：通过将夹具和下部外壳夹住使用者的外耳，使得下部壳体位于耳朵上，扬声器在用户的耳孔附近产生体积小的节奏音调。参照液晶显示器，通过操作开关来设定节奏速度和节奏音的类型。集成电路具有用于保存模拟声音的记录数据的存储装置和用于根据设定的节奏速度和类型从所记录的数据再现模拟电信号的再现装置，以致动扬声器。

8. 发明申请

US20020148347A1 System and method of BPM determination 有权
标题翻译： BPM测定的系统和方法
公开(公告)号：US20020148347A1
公开(公告)日：2002-10-17
申请号：US10120069
申请日：2002-04-10
申请人： MAGIX ENTERTAINMENT PRODUCTS, GmbH
发明人： Tilman Herberger , Titus Tost , Georg Flemming
IPC分类号： G10H001/40
CPC分类号： G10H1/40 , G10H2220/086 , Y10S84/12
摘要： There is provided an improved system and method of determining the tempo of a digitized musical work that, optionally, allows a user to participate in the BPM determination. A first preferred aspect includes determination of estimates of the BPM of a musical work by utilizing at least two different algorithms, thereby producing a plurality of separate BPM candidates. As a further preferred aspect, the method utilizes, as an optional step, input from the user to assist in selecting the nullbestnull BPM from among the plurality of BPMs determined previously. Preferably, the user is given the option of nulltapping alongnull with the music by pressing the mouse or a key on the computer in time to the music as it is played. The program analyzes the first few taps and, from that input, selects from the BPMs the one that is most consistent with the user's input.
摘要翻译：提供了一种确定数字化音乐作品的速度的改进的系统和方法，其可选地允许用户参与BPM确定。第一优选方面包括通过利用至少两种不同的算法来确定音乐作品的BPM的估计，由此产生多个单独的BPM候选者。作为进一步优选的方面，该方法作为可选步骤利用来自用户的输入来辅助从先前确定的多个BPM中选择“最佳”BPM。优选地，通过在播放音乐时及时按下计算机上的鼠标或键，向用户给出“轻敲”音乐的选项。该程序分析了前几个抽头，从该输入中，从BPM中选择与用户输入最一致的BPM。

9. 发明申请

US20020002899A1 System for content based music searching 审中-公开
标题翻译：基于内容的音乐搜索系统
公开(公告)号：US20020002899A1
公开(公告)日：2002-01-10
申请号：US09532196
申请日：2000-03-22
发明人： Robert O. Gjerdingen , Rehan M. Khan , Marc Mathys , Christian D. Pirkner , Pete W. Rice , Thomas R. Sulzer
IPC分类号： G10H001/40 , G10H005/00
CPC分类号： G10H1/00 , G06F16/635 , G06F16/68 , G06F16/683 , G10H2240/081 , G10H2240/085 , G10H2240/131 , G10H2240/305 , G10H2250/151 , G11B27/105 , G11B27/34
摘要： A system for searching music, based upon music content that may be described by a plurality of predetermined feature vectors is provided. The system includes a user interface that can receive a plurality of user requests for searching music, wherein the user requests define a set of search parameters. A user enters search parameters into the user interface that allows a user to vary the plural levels of the plural feature vectors. The system further includes a user interface engine that receives the user requests for searching music based upon user chosen feature vector levels, wherein the user interface includes a parser for parsing the user requests. The system also includes an inferential engine that performs a search for music by comparing plural feature vectors.
摘要翻译：提供了一种基于可由多个预定特征向量描述的音乐内容来搜索音乐的系统。该系统包括可以接收用于搜索音乐的多个用户请求的用户界面，其中用户请求定义一组搜索参数。用户将搜索参数输入到允许用户改变多个特征向量的多个级别的用户界面中。该系统还包括用户界面引擎，用户接口引擎基于用户选择的特征向量级别接收用户搜索音乐的请求，其中用户界面包括用于解析用户请求的解析器。该系统还包括通过比较多个特征向量来执行音乐搜索的推理引擎。

10. 发明申请

US20030221544A1 Method and device for determining rhythm units in a musical piece 有权
标题翻译：用于确定音乐作品中节奏单位的方法和装置
公开(公告)号：US20030221544A1
公开(公告)日：2003-12-04
申请号：US10202328
申请日：2002-07-24
发明人： Jorg Weissflog
IPC分类号： G10H001/40
CPC分类号： G10H1/40 , G10H2210/076 , G10H2220/086
摘要： A method for determining rhythm units (beats per minute or BPM) in (digital) audio data forming a musical piece. The audio data is split among a plurality of determination paths wherein it is subdivided into predetermined frequency bands. The data is analyzed for transients in order to determine attack events. In addition, the time intervals between two successive attack events are measured. In this case, the time intervals are averaged and defined as the frequency-band-specific rhythm unit (BPM) of the audio data in the respective determination path. Thus, the rhythm unit which exhibits the highest beat number (BPM number) is selected from the frequency-band-specific rhythm units (BPM) of the determination paths.
摘要翻译：一种用于在形成音乐作品的（数字）音频数据中确定节奏单位（每分钟节拍或BPM）的方法。音频数据被分割成多个确定路径，其中它被细分成预定的频带。为了确定攻击事件，分析瞬态数据。此外，测量两次连续攻击事件之间的时间间隔。在这种情况下，时间间隔被平均化并被定义为各个确定路径中的音频数据的频带特定节奏单元（BPM）。因此，从确定路径的频带特定节奏单元（BPM）中选择表现出最高拍子数（BPM编号）的节奏单元。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式