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91. 发明授权

US5749064A Method and system for time scale modification utilizing feature vectors about zero crossing points 失效
标题翻译：利用关于零交叉点的特征向量进行时间尺度修正的方法和系统
公开(公告)号：US5749064A
公开(公告)日：1998-05-05
申请号：US609335
申请日：1996-03-01
申请人： Basavaraj I. Pawate , Susan Yim
发明人： Basavaraj I. Pawate , Susan Yim
IPC分类号： G10H1/36 , G10K15/04 , G10L21/04 , G10L3/02 , G10L9/12
CPC分类号： G10H1/366 , G10L21/04 , G10H2250/035
摘要： A method and system for implementing time scale modification wherein the method includes a Zero Crossing Module (22) for determining zero crossing points in the signal, a Feature Vector Module (24) for generating feature vectors describing the zero crossing points, a Distance Metric Module (26) for generating distance metrics describing local characteristics at the zero crossing points, an Alignment Module (28) for using the feature vectors and distance metrics for aligning and synchronizing the signal in accordance with local similarities and similarity over a selected time interval to generate a time scale modified signal. The present invention also includes a Cross Fade Module (20) for smoothing transitions between successive frames of the resulting time scale modified signal.
摘要翻译：一种用于实现时间尺度修改的方法和系统，其中所述方法包括用于确定所述信号中的过零点的零交叉模块（22），用于生成描述过零点的特征向量的特征向量模块（24），距离度量模块（26），用于产生描绘过零点处的局部特性的距离度量;对准模块（28），用于使用所述特征向量和距离度量来根据所选时间间隔上的局部相似性和相似性来对齐和同步所述信号，以产生时间尺度修改信号。本发明还包括用于平滑所产生的时标修改信号的连续帧之间的转换的交叉衰落模块（20）。

92. 发明授权

US5712437A Audio signal processor selectively deriving harmony part from polyphonic parts 失效
标题翻译：音频信号处理器从复音部分选择性地导出和声部分
公开(公告)号：US5712437A
公开(公告)日：1998-01-27
申请号：US599763
申请日：1996-02-12
申请人： Yasuo Kageyama
发明人： Yasuo Kageyama
IPC分类号： G10H1/36 , G10H1/08
CPC分类号： G10H1/366 , G10H2210/031 , G10H2210/261 , G10H2210/281 , G10H2220/011 , G10H2250/135
摘要： In an audio signal processor, an input device inputs a polyphonic audio signal containing a plurality of melodic parts which constitute a music composition. A detecting device detects a particular one of the melodic parts contained in the input polyphonic audio signal. An extracting device extracts the detected melodic part from the input polyphonic audio signal. A harmony generating device shifts a pitch of the extracted melodic part to generate a harmony audio signal representative of an additional harmony part. An output device mixes the generated harmony audio signal to the input polyphonic audio signal so as to sound the music composition which contains the additional harmony part derived from the particular one of the melodic parts.
摘要翻译：在音频信号处理器中，输入装置输入包含构成音乐作品的多个旋律部分的复音音频信号。检测装置检测包含在输入复音音频信号中的特定一个旋律部分。提取装置从输入的多音频音频信号中提取检测到的旋律部分。和谐发生装置使所提取的旋律部分的音调移动，以产生表示附加和声部分的和声音频信号。输出装置将生成的和声音频信号与输入的复音音频信号混合，以便发出包含从特定的旋律部分导出的附加和声部分的音乐作品。

93. 发明授权

US5367118A Digital pitch shifter for reading out pitch-shifted waveform data from a memory 失效
标题翻译：用于从存储器读出音调移位波形数据的数字音调移位器
公开(公告)号：US5367118A
公开(公告)日：1994-11-22
申请号：US839184
申请日：1992-02-21
申请人： Makoto Iwaooji
发明人： Makoto Iwaooji
IPC分类号： G10L21/04 , G10H1/02 , G10H1/20 , G10H1/36 , G10H7/00 , G10H7/02 , G10H1/057
CPC分类号： G10H1/02 , G10H1/20 , G10H1/366 , G10H7/008 , G10H7/02 , G10H2250/035 , G10H2250/631
摘要： Waveform data written in a RAM 2 base on write addresses is always read out as two waveform data from two read addresses 1 and 2 designated by a CPU 1, and two interpolation data 1 and 2 are formed. A smaller address difference A between the write address and the read address 1 is multiplied with the interpolation data 1 as an envelope value to obtain cross-fade data 1. Similarly, cross-fade data 2 corresponding to the read address 2 is obtained. The two items of cross-fade data 1 and 2 are added to each other to obtain output waveform data. An envelope value of waveform data near a waveform discontinuous point becomes almost zero, and click noise can be eliminated.
摘要翻译：以写入地址为基础写入RAM2的波形数据总是作为由CPU 1指定的两个读取地址1和2的两个波形数据读出，形成两个内插数据1和2。将写入地址和读取地址1之间的较小的地址差A与内插数据1相乘作为包络值以获得交叉淡入淡出数据1.类似地，获得与读取地址2相对应的交叉淡入淡出数据2。交叉淡入淡出数据1和2的两个项目彼此相加以获得输出波形数据。波形不连续点附近的波形数据的包络值几乎为零，可以消除点击噪声。

94. 发明授权

US5231671A Method and apparatus for generating vocal harmonies 失效
标题翻译：用于产生声乐和声的方法和装置
公开(公告)号：US5231671A
公开(公告)日：1993-07-27
申请号：US719195
申请日：1991-06-21
申请人： Brian C. Gibson , John P. Bertsch
发明人： Brian C. Gibson , John P. Bertsch
IPC分类号： G10H1/38 , G10G7/02 , G10H1/00 , G10H1/10 , G10H1/36 , G10H5/00 , G10K15/04
CPC分类号： G10H1/366 , G10G7/02 , G10H5/005 , G10H2210/251 , G10H2220/011 , G10H2250/031 , G10H2250/285 , G10H2250/631
摘要： Disclosed are a method and apparatus for analyzing an input vocal signal to produce a plurality of harmony signals that are combined with the input vocal signal to produce a multivoice signal. The method makes a current estimate of the fundamental frequency of the input vocal signal and determines if the current estimate is the correct estimate of the fundamental frequency. If the current estimate is correct, a reference note is assigned to correspond to the current estimate and a plurality of harmony notes are selected to correspond to the reference note. The method then generates a plurality of harmony signals by scaling the input vocal signal with a piecewise linear approximation of a Hanning window to extract a portion of the input vocal signal and by replicating the extracted portion at a plurality of rates equal to the fundamental frequencies of each of the harmony notes. The plurality of harmony signals and the input vocal signal are combined to produce the multivoice signal. The steps of the method are carried out with a microprocessor and a signal processing circuit.
摘要翻译：公开了一种用于分析输入声音信号以产生与输入声音信号组合以产生多声道信号的多个和声信号的方法和装置。该方法对输入声音信号的基频进行当前估计，并确定当前估计值是否是基频的正确估计。如果当前估计是正确的，则分配参考音符以对应于当前估计，并且选择多个和声笔记以对应于参考音符。然后，该方法通过用Hanning窗口的分段线性近似缩放输入声音信号来产生多个和声信号，以提取输入声音信号的一部分，并且通过以等于基本频率的多个速率复制提取的部分每个和声笔记。多个和声信号和输入声信号被组合以产生多声道信号。该方法的步骤用微处理器和信号处理电路进行。

95. 发明授权

US4596032A Electronic equipment with time-based correction means that maintains the frequency of the corrected signal substantially unchanged 失效
标题翻译：具有时基校正的电子设备意味着维持校正信号的频率基本上不变
公开(公告)号：US4596032A
公开(公告)日：1986-06-17
申请号：US447966
申请日：1982-12-08
申请人： Atsushi Sakurai
发明人： Atsushi Sakurai
IPC分类号： G10L11/00 , G10H1/00 , G10H1/36 , G10L21/04 , G10L1/00
CPC分类号： G10H1/366 , G10L21/04 , G10H2250/505
摘要： Speech and melody information are separately inputted and stored. The speech timing is modified (corrected) to alignment with the melody.
摘要翻译：语音和旋律信息被分别输入和存储。语音定时被修改（校正）以与旋律对准。

96. 发明授权

US12014710B2 Device, method and computer program for blind source separation and remixing 有权
公开(公告)号：US12014710B2
公开(公告)日：2024-06-18
申请号：US17421016
申请日：2020-01-14
申请人： Sony Group Corporation
发明人： Stefan Uhlich , Michael Enenkl
IPC分类号： G10H1/36 , G10L21/0224 , G10L21/0272
CPC分类号： G10H1/366 , G10L21/0224 , G10L21/0272 , G10H2210/056 , G10H2250/305
摘要： An electronic device comprising a circuitry configured to perform (402; 602; 902; 1002) blind source separation (201) based on a received input signal (1) to obtain separated sources; to perform (403; 605; 906; 1005) time-domain filtering (202) on at least one of the separated sources to obtain at least one filtered separated source; and to perform (404; 606; 907; 1006) remixing or upmixing (203) based on the at least one filtered separated source.

97. 发明公开

US20240021183A1 SINGING SOUND OUTPUT SYSTEM AND METHOD 审中-公开
公开(公告)号：US20240021183A1
公开(公告)日：2024-01-18
申请号：US18475309
申请日：2023-09-27
申请人： Yamaha Corporation
发明人： Tatsuya IRIYAMA
IPC分类号： G10H1/36
CPC分类号： G10H1/366 , G10H2220/011 , G10H2240/325 , G10H2250/455 , G10L13/04
摘要： A singing sound output system includes at least one processor configured to execute a teaching unit configured to indicate to a user a progression position in singing data that are temporally associated with accompaniment data and include a plurality of syllables, an acquisition unit configured to acquire at least one piece of sound information input by a performance, a syllable identification unit configured to identify, from the syllables in the singing data, a syllable corresponding to the sound information, a timing identification unit configured to associate, with the sound information, relative information indicating a relative timing with respect to an identified syllable identified by the syllable identification unit, a synthesizing unit configured to synthesize a singing sound based on the identified syllable, and an output unit configured to, based on the relative information, synchronize and output the singing sound and an accompaniment sound based on the accompaniment data.

98. 发明公开

US20230395051A1 PITCH ADJUSTMENT METHOD AND DEVICE, AND COMPUTER STORAGE MEDIUM 审中-公开
公开(公告)号：US20230395051A1
公开(公告)日：2023-12-07
申请号：US18034031
申请日：2021-09-22
申请人： Tencent Music Entertainment Technology (Shenzhen) Co., Ltd.
发明人： Yu Zhou , Sen Lin
IPC分类号： G10H1/36 , G10H1/00
CPC分类号： G10H1/366 , G10H1/0008 , G10H2210/066 , G10H2210/331 , G10H2210/005
摘要： A pitch adjustment method and apparatus, and a computer storage medium are provided. the fundamental frequency sequence of the singing sound of the user is obtained, the pitch difference between each candidate melody file and the fundamental frequency sequence at each corresponding time point is calculated, and the sum of all pitch differences of each candidate melody file is calculated. The candidate melody file with the minimum sum is determined as the target melody file, and the pitch of the accompaniment file of the target song is adjusted according to the pitch difference between the target melody file and the original melody file of the target song.

99. 发明授权

US11830466B2 System and method for generating harmonious color sets from musical interval data 有权
公开(公告)号：US11830466B2
公开(公告)日：2023-11-28
申请号：US17979282
申请日：2022-11-02
申请人： James K. Beasley
发明人： James K. Beasley
IPC分类号： G10H1/36 , G10H1/00
CPC分类号： G10H1/368 , G10H1/0025 , G10H1/366 , G10H2220/005 , G10H2220/021
摘要： Systems and methods are disclosed for generating color sets based on musical concepts of pitch intervals and harmony. Color sets are derived via a music-to-hue process which analyzes musical pitch data associated with musical input to determine pitch intervals included in the music. Pitch interval angles associated with the pitch intervals are applied to a tuned hue index to identify hue note ordered within the index which are separated by a hue interval angle similar to the pitch angle associated with the analyzed pitch data. The systems and methods provide for the creation of color sets which are analogous to musical chords in that they include multiple hue notes selected based on hue interval angles derived from musical interval angles associated with the received musical input.

100. 发明授权

US10008193B1 Method and system for speech-to-singing voice conversion 有权
公开(公告)号：US10008193B1
公开(公告)日：2018-06-26
申请号：US15681311
申请日：2017-08-18
申请人： Mark J. Harvilla
发明人： Mark J. Harvilla
IPC分类号： G10H1/36
CPC分类号： G10H1/366 , G10H1/20 , G10H2210/066 , G10H2210/081 , G10H2210/165 , G10H2210/561 , G10H2220/011 , G10H2250/031 , G10H2250/455 , G10H2250/481
摘要： A singing voice conversion system configured to generate a song in the voice of a target singer based on a song in the voice of a source singer is disclosed. The embodiment utilizes two complementary approaches to voice timbre conversion. Both combine the natural prosody of a source singer with the pitch of the target singer—typically the user of the system—to achieve realistic sounding synthetic singing. The system is able to transpose the key of any song to match the automatically determined or desired pitch range of the target singer, thus allowing the system to generalize to any target singer, irrespective of their gender, natural pitch range, and the original pitch range of the song to be sung.

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