Rhythm Patents (Class 84/635)
  • Patent number: 10095467
    Abstract: Techniques are disclosed relating to generating music content. In one embodiment, a method includes determining one or more musical attributes based on external data and generating music content based on the one or more musical attributes. Generating the music content may include selecting from stored sound loops or tracks and/or generating new tracks based on the musical attributes. Selected or generated sound loops or tracks may be layered to generate the music content. Musical attributes may be determined in some embodiments based on user input (e.g., indicating a desired energy level), environment information, and/or user behavior information. Artists may upload tracks, in some embodiments, and be compensated based on usage of their tracks in generating music content. In some embodiments, a method includes generating sound and/or light control information based on the musical attributes.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: October 9, 2018
    Assignee: Be Labs, LLC
    Inventor: Edward Balassanian
  • Patent number: 10068557
    Abstract: The present disclosure provides systems and methods that include or otherwise leverage a machine-learned neural synthesizer model. Unlike a traditional synthesizer which generates audio from hand-designed components like oscillators and wavetables, the neural synthesizer model can use deep neural networks to generate sounds at the level of individual samples. Learning directly from data, the neural synthesizer model can provide intuitive control over timbre and dynamics and enable exploration of new sounds that would be difficult or impossible to produce with a hand-tuned synthesizer. As one example, the neural synthesizer model can be a neural synthesis autoencoder that includes an encoder model that learns embeddings descriptive of musical characteristics and an autoregressive decoder model that is conditioned on the embedding to autoregressively generate musical waveforms that have the musical characteristics one audio sample at a time.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: September 4, 2018
    Assignee: Google LLC
    Inventors: Jesse Engel, Mohammad Norouzi, Karen Simonyan, Adam Roberts, Cinjon Resnick, Sander Etienne Lea Dieleman, Douglas Eck
  • Patent number: 9264020
    Abstract: Systems and methods for improving the timing alignment of non-overlapping waveforms are provided. In this regard, a representative system, among others, includes a waveform synthesizer that generates a plurality of input waveforms and inverters having inputs and outputs, wherein the inverters receive the input waveforms at the inputs of the inverters and invert the input waveforms, producing a plurality of inverted waveforms at the outputs of the inverters. The system also includes NOR gates having inputs and outputs, wherein the NOR gates receive the plurality of inverted waveforms at the inputs of the NOR gates and pass through one of the inverted waveforms at the outputs of the NOR gates.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: February 16, 2016
    Assignee: CSR Technology Inc.
    Inventor: Ronald C. Alford
  • Patent number: 9000285
    Abstract: A method and system for analyzing patterns in the relationships of notes of an input piece of music. The method comprises generating a set of the most frequently occurring note pitches in ascending pitch order that matches an interval pattern, and detecting out-of-key pitches that lie outside of this interval pattern. One or more potential key sequence bifurcations are identified which represent a list of possible key sequences according to forwards and backwards analysis. By finding patterns of repetition in the chordal sequences that may be generated according to these key sequence bifurcations, a key sequence that allows the most frequently recurring chord sequences may be chosen. Chord sequences may be analyzed by using ghost chords, temporary harmonic structures that are created, updated and finalized over time according to a combination of essential and inessential note fragments. The method further comprises identifying non-harmony pitches according to the analyzed chord sequence.
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: April 7, 2015
    Assignee: Exomens
    Inventor: Marcus A. Matusiak
  • Patent number: 8983082
    Abstract: Among other things, techniques and systems are disclosed for detecting musical structures, such as downbeats. In one aspect, a method performed by a data processing device includes receiving an input audio signal. The method includes detecting a meter in the received audio signal. Detecting the meter includes generating an envelope of the received audio signal; generating an autocorrelation phase matrix having a two-dimensional array based on the generated envelope to identify a dominant periodicity in the received audio signal; and filtering both dimensions of the generated autocorrelation phase matrix to enhance peaks in the two-dimensional array. The meter represents a time signature of the input audio signal having multiple beats. Additionally, the method includes identifying a downbeat as a first beat in the detected meter.
    Type: Grant
    Filed: April 14, 2010
    Date of Patent: March 17, 2015
    Assignee: Apple Inc.
    Inventors: Cynthia Maxwell, Frank Martin Ludwig Gunter Baumgarte
  • Patent number: 8907197
    Abstract: A performance-information processing apparatus processes performance information entered thereto. When the performance information is entered in a time interval between (i) a starting time point, at which performance information of one note starts entering and (ii) a first timing, that is a certain time after another performance information of a note has been entered after the performance information of said one note was entered, a tempo determining unit determines a tempo of the performance information, based on the performance information entered in the time interval, and a meter determining unit which determines a meter of the performance information based on the tempo determined by the tempo determining unit.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: December 9, 2014
    Assignee: Casio Computer Co., Ltd.
    Inventor: Hiroko Okuda
  • Patent number: 8829322
    Abstract: Computer-based methods infer a metrical grid from music that has been input without a predetermined time signature or tempo, enabling such free rhythm input to be annotated with the inferred grid, and stored and transcribed as a musical score. The methods use Bayesian modeling techniques, in which an optimal metrical grid is inferred by identifying the metrical grid that best explains the given sequence of notes by maximizing the posterior probability that it represents the note sequence. Prior musical input from a given user as well as explicit information about the musical style of the input may be used to improve the accuracy of the transcription.
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: September 9, 2014
    Assignee: Avid Technology, Inc.
    Inventor: Paul J. Walmsley
  • Patent number: 8629343
    Abstract: An example computer of an information processing apparatus that reproduces music composed of one or more tracks is caused to function as: a reproduction section configured to reproduce the music; a meter change section configured to change the meter for reproduction of the music, while the reproduction section is reproducing the music; and a determination section configured to, based on the meter that has been changed, repeatedly determine whether or not to cause the reproduction section to reproduce the next beat supposed to be reproduced in a bar of the music that is currently being reproduced. The reproduction section reproduces the music, based on the result of the determination by the determination section.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: January 14, 2014
    Assignee: Nintendo Co., Ltd.
    Inventors: Hajime Wakai, Masato Mizuta
  • Patent number: 8563842
    Abstract: A method and apparatus for separating and extracting main sound sources from a mixed musical sound signal are provided. A musical sound source separation apparatus may include an prior information signal compressor to compress an prior information signal including a characteristic of a predetermined sound source, a mixed signal divider to divide a mixed signal including a plurality of sound sources into a plurality of segments, a Nonnegative Matrix Partial Co-Factorization (NMPCF) analyzer to acquire common information shared by the plurality of segments, by applying an NMPCF algorithm to the prior information signal, and a target musical instrument signal separator to separate a target musical instrument signal corresponding to the predetermined sound source from the mixed signal, based on the common information.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: October 22, 2013
    Assignees: Electronics and Telecommunications Research Institute, Postech Academy-Industry Foundation
    Inventors: Min Je Kim, In Seon Jang, Kyeong Ok Kang, Seung Jin Choi, Ji Ho Yoo, Jin Woong Kim
  • Patent number: 8507781
    Abstract: A guitar delay engine such as a multi-tap delay pedal or other rhythm engine such as a vocal multi-tap delay pedal, a drum machine, or any other device that requires setting a rhythmic pattern (i.e. level and timing information) for operation is provided. In a guitar delay device, the guitarist can hold down a foot pedal, play a rhythmic pattern on their guitar, and then release the foot pedal and have the rhythmic pattern just played emulated in the delay pattern on the device.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: August 13, 2013
    Assignee: Harman International Industries Canada Limited
    Inventors: Peter R. Lupini, Glen A. Rutledge, William Norman Campbell
  • Patent number: 8487175
    Abstract: In a musical analysis apparatus, a spectrum acquirer acquires a spectrum for each frame of an audio signal representing a piece of music. A beat specifier specifies a sequence of beats of the audio signal. A feature amount extractor divides an interval between the beats into a plurality of analysis periods such that one analysis period contains a plurality of frames, and separates the spectrum of the frames contained in one analysis period into a plurality of analysis bands so as to set a plurality of analysis units in one analysis period in correspondence with the plurality of the analysis bands, such that one analysis unit contains components of the spectrum belonging to the corresponding analysis band.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: July 16, 2013
    Assignee: Yamaha Corporation
    Inventors: Keita Arimoto, Sebastian Streich, Bee Suan Ong
  • Patent number: 8426715
    Abstract: A low computational power digital audio player achieves beat continuous transitioning between digital audio pieces based on beat metadata, which can be generated via offline processing on a higher computational power computer or via background or idle processing on the digital audio player. The digital audio player produces playlists of beat matching compatible songs based on the metadata, or pick lists of songs that are beat matching compatible with a currently playing song. By facilitating selection of songs with beat matching compatible tempos based on metadata, the beat continuous transitions can be achieved without altering the beat tempo of digital audio pieces, or with simple resampling.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: April 23, 2013
    Assignee: Microsoft Corporation
    Inventors: John Bregar, Andy Precious, Sanjeev Mehrotra, Serge Smirnov
  • Patent number: 8389848
    Abstract: An apparatus and method to assist a drummer playing a bass drum. The apparatus enables a drummer to combine force applied to a foot plate, frequency applied to a foot plate, and a selected algorithm to output a mechanical force to a bass drum beater. The apparatus provides drummers the ability to produce a variety of desired rhythmic patterns, to change the intensity of the stroke, to vary the tempi so that patterns will be consistent with the music being performed, and to produce a metronomic beat (tempo) when desired. Hence, drummer fatigue is reduced, the drummer can produce more complicated and varying patterns on the fly, and the drummer has the ability to change the stroke to accent beats.
    Type: Grant
    Filed: February 20, 2012
    Date of Patent: March 5, 2013
    Assignee: BakBeat, LLC
    Inventor: William Thomas Baker
  • Patent number: 8378197
    Abstract: In providing a music program, a personal music player displays personal activity choices. A user selects a personal activity and provides a time duration for the activity. The player sends a request to a music program server for a music program. The request includes the personal activity and the time duration. The music program server selects a music program record from a plurality of music program records that has an activity attribute which matches the personal activity and a program duration which matches or is less than the time duration. The server extracts location information for the music program from the program entry in the music program record, and sends this to the player. The player uses the location information to obtain the music program. In this manner, a music program is provided to a user based on the personal activity of the user.
    Type: Grant
    Filed: March 4, 2010
    Date of Patent: February 19, 2013
    Assignee: TP LAB, Inc.
    Inventors: Chi Fai Ho, Shin Cheung Simon Chiu
  • Patent number: 8338686
    Abstract: An apparatus for enhancing audio comprising a first interface and a harmonizing module is disclosed. The first interface receive a first audio segment from a first source. The harmonizing module is coupled to the first interface. The harmonizing module is configured to identify at least one musical property of the first audio segment; calculate a subset of notes that are harmonious with the first audio segment based on the at least one musical property; and select from the subset of notes to generate an audio track to be played substantially synchronously with the first audio segment. A second interface may also be provided to receive a second audio segment from a second source. In this case, the harmonizing module may be configured to generate the audio track by transforming one or more notes of the second audio segment. A method is also provided.
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: December 25, 2012
    Assignee: Music Mastermind, Inc.
    Inventors: David Mann, Francesco Gerald Capodieci, Reza Rassool
  • Patent number: 8324494
    Abstract: A MIDI signal generator adapted for foot pedal operated percussion synthesis having, inter alia, independent volume, reverb, loop, fill, tempo and style controls. An important feature is the ability to cycle through a series of pre-selected rhythm loops. Each rhythm loop further has a subset of associated fills that are initiated with specific touches to the foot pedal. The device is computer integrated to match any of the stored rhythm loops with any subset of fills.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: December 4, 2012
    Inventor: David Packouz
  • Patent number: 8158873
    Abstract: Game player performance information systems and methods generate game player performance information. An exemplary embodiment receives a specification of an audio track of interest; receives a specification of a musical instrument, wherein the musical instrument corresponds to an instrument simulation device that a game player operates when playing the musical game; determines an instrument audio track based upon the audio track of interest, wherein the instrument audio track corresponds to music played by the specified musical instrument during the recording of the audio track of interest; generating a plurality of instrument notes based upon the instrument audio track; generates a plurality of game play notes based upon the instrument notes; and generates game player performance information based upon the game play notes, wherein the game player performance information identifies the sequence of specific player actions for the game player to make during playback of the audio track of interest.
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: April 17, 2012
    Inventor: William Ivanich
  • Patent number: 8106281
    Abstract: CPU 11 reads from RAM 13 pitch information of each of musical notes composing the music, fingering information for playing the musical notes, and time information of the musical notes, thereby calculating a difficulty level of music. CPU 11 calculates a fingering difficulty level concerning fingering of playing adjacent musical notes based on the pitch information and fingering information, a rhythm difficulty level concerning musical-note duration and timing of key playing based on the time information, and a key difficulty level concerning a key of music based on the pitch information. Further, CPU 11 calculates the whole difficulty level of music based on the fingering difficulty level, rhythm difficulty level and key difficulty level.
    Type: Grant
    Filed: May 19, 2010
    Date of Patent: January 31, 2012
    Assignee: Casio Computer Co., Ltd.
    Inventor: Junichi Minamitaka
  • Patent number: 8080724
    Abstract: Provided are an apparatus and method of separating, from a mixed signal, a sound source generated using a rhythm musical instrument based on characteristics of the rhythm musical instrument repeated in an aspect of time. The apparatus may include a separation unit to separate a plurality of mixed signals into a plurality of segments, a Nonnegative Matrix Partial Co-Factorization (NMPCF) analysis unit to perform an NMPCF analysis on the plurality of segments, and to obtain a plurality of entity matrices based on the analysis result, a target instrument signal separating unit to separate, from the mixed signals, a target instrument signal, by calculating an inner product between the plurality of entity matrices, and a signal association unit to associate the target instrument signals separated from each of the plurality of segments.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: December 20, 2011
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Min Je Kim, Seung Kwon Beack, Kyeongok Kang, Dae Young Jang, Tae Jin Lee, Inseon Jang, Jin Woo Hong
  • Patent number: 8022287
    Abstract: An apparatus that allows a musical piece to be recomposed by reflecting, for example, the mood, preference, and ambient environment of a listening user in the musical piece in real time. The apparatus includes a rhythm master unit and a rhythm slave unit. The rhythm master unit generates synchronization signals containing a signal having a period corresponding to a measure of a musical piece and a signal having a period corresponding to a beat of the musical piece and also generates musical-piece recomposition information in synchronization with the synchronization signals. The rhythm slave unit recomposes musical-piece data of input music content in accordance with the synchronization signals and the musical-piece recomposition information, generates output musical-piece data, and outputs the musical-piece data to the rhythm slave unit.
    Type: Grant
    Filed: December 9, 2005
    Date of Patent: September 20, 2011
    Assignee: Sony Corporation
    Inventors: Kosei Yamashita, Yasushi Miyajima, Motoyuki Takai, Yoichiro Sako, Toshiro Terauchi, Toru Sasaki, Yuichi Sakai
  • Patent number: 8003873
    Abstract: The present invention relates to a percussion assembly comprising a multitude of percussion instruments, means for playing said percussion instruments and input means for inputting a tone pitch selection for the purpose of producing a tone pitch selection signal. The percussion assembly further comprises sensor means for producing a synchronization signal when at least one of said percussion instruments is being played. The percussion assembly furthermore comprises control means for receiving the tone pitch selection signal and the synchronization signal and for producing an audio signal dependent on the tone pitch selection signal synchronously with the synchronization signal. The invention further relates to drumsticks and to input means for use with a percussion assembly as described in the foregoing.
    Type: Grant
    Filed: September 12, 2007
    Date of Patent: August 23, 2011
    Inventor: Hubertus Georgius Petrus Rasker
  • Patent number: 7964783
    Abstract: Systems and methods of evolving music tracks are disclosed. One example method providing a plurality of Artificial Neural Networks (ANNs). Each of the ANNs uses a time signature input. The method also includes producing a rhythm from each of the plurality of ANNs. The method also includes evolving a next generation of ANNs based upon a user selection of one of the plurality of rhythms and upon the previous generation of ANNs. An example system includes a plurality of Compositional Pattern Producing Networks (CPPNs). Each of the CPPNs uses a time signature input to produce a rhythm. The system also includes logic configured to receive a selection of one or more of the CPPN, and logic configured to generate at least one evolved CPPN based upon the selection.
    Type: Grant
    Filed: June 2, 2008
    Date of Patent: June 21, 2011
    Assignee: University of Central Florida Research Foundation, Inc.
    Inventors: Michael Rosario, Kenneth O. Stanley
  • Patent number: 7952013
    Abstract: Content is selected on the basis of changes of a walking tempo. The walking tempo is detected (S5). In a state determination process (S7), it is determined whether the walking tempo tends to increase, be constant, or decrease. A walking tempo corrective coefficient is calculated on the basis of the determined result and a corrective walking tempo is calculated with the walking tempo corrective coefficient (S9). It is determined whether or not music is changed on the basis of the corrective walking tempo rather than the actually detected walking tempo (S11). When music is changed, relevant music content is searched. Controls are performed in such a manner that when the walking tempo is decreasing, the foregoing state is kept for a while, when the walking tempo is increasing, music is quickly selected according to the increase of the walking tempo, and when the walking tempo is stable, music is not selected.
    Type: Grant
    Filed: January 11, 2007
    Date of Patent: May 31, 2011
    Assignee: Sony Corporation
    Inventors: Akihiro Komori, Susumu Takatsuka, Toru Sasaki, Yuichi Sakai, Yoichiro Sako, Toshiro Terauchi, Hirofumi Tamori, Makoto Inoue, Katsuya Shirai, Motoyuki Takai, Kenichi Makino, Takatoshi Nakamura, Akane Sano
  • Patent number: 7711961
    Abstract: Biogenic information of the user is obtained through a camera unit and an authentication sensor and compared with biogenic information of a person with use authority has previously been stored, thereby discriminating whether or not the user has the use authority. When the user is authenticated, that is, if it is determined that the user is the person with the use authority, an electronic apparatus permits the user to use each function and operate. The authentication of the user is executed when the user wears the electronic apparatus. After he removes it, the authentication result is not held, thereby disabling a person without the use authority to use the electronic apparatus. The biogenic information (physical feature) of the user is detected and the personal authentication can be executed without requiring the user to execute the annoying inputting operation for the personal authentication.
    Type: Grant
    Filed: August 9, 2004
    Date of Patent: May 4, 2010
    Assignee: Sony Corporation
    Inventors: Keiichi Fujinuma, Toshiharu Yanagida, Yoshio Okoshi, Ichiro Kosugi
  • Patent number: 7648416
    Abstract: A musical rhythm is expressed by the number of the timing marks (for example, three timing marks when in simple triple time); and a musical tempo is expressed by the distance among the timing marks and a timing ball that moves at a fixed speed among those timing marks. Accordingly, a player may easily grasp the tempo of the music and easily determine the rhythm of the music in a sound game.
    Type: Grant
    Filed: February 6, 2002
    Date of Patent: January 19, 2010
    Assignee: Sony Computer Entertainment Inc.
    Inventors: Jun Chuuma, Hiroyuki Kotani
  • Patent number: 7579546
    Abstract: A user is asked to perform tapping at beat positions by using a tapping detection section while listening to the beginning of a waveform from which beats are to be detected. When a fluctuation calculation section determines that tapping fluctuation falls in a predetermined range, a beat interval close in number to the tempo of the tapping is selected from among beat-interval candidates detected by a tempo-candidate detection section, and a tapping position where tapping becomes stable is determined to be the starting beat position. Tapping by the user for just some beats allows beats to be detected in the entire musical piece more correctly.
    Type: Grant
    Filed: August 1, 2007
    Date of Patent: August 25, 2009
    Assignee: Kabushiki Kaisha Kawai Gakki Seisakusho
    Inventor: Ren Sumita
  • Publication number: 20080295674
    Abstract: Systems and methods of evolving music tracks are disclosed. One example method providing a plurality of Artificial Neural Networks (ANNs). Each of the ANNs uses a time signature input. The method also includes producing a rhythm from each of the plurality of ANNs. The method also includes evolving a next generation of ANNs based upon a user selection of one of the plurality of rhythms and upon the previous generation of ANNs. An example system includes a plurality of Compositional Pattern Producing Networks (CPPNs). Each of the CPPNs uses a time signature input to produce a rhythm. The system also includes logic configured to receive a selection of one or more of the CPPN, and logic configured to generate at least one evolved CPPN based upon the selection.
    Type: Application
    Filed: June 2, 2008
    Publication date: December 4, 2008
    Applicant: University of Central Florida Research Foundation, Inc.
    Inventors: Michael Rosario, Kenneth O. Stanley
  • Patent number: 7342167
    Abstract: An encoded rhythmic pattern has several groups of velocity values, wherein the velocity values are sorted, such that the groups are included in sequence in an encoded rhythmic pattern. Now, the velocity values concentrated at the beginning of the encoded rhythmic pattern have a higher importance for characterizing the rhythmic gist of a piece of music than velocity values included in additional groups of velocity values. By using such an encoded rhythmic pattern, an efficient database access can be performed.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: March 11, 2008
    Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung E.V.
    Inventors: Markus Cremer, Matthias Gruhne, Jan Rohden, Christian Uhle
  • Patent number: 7337175
    Abstract: The invention concerns a method for storing data in a multimedia file, the multimedia file containing an absolute time base indicator and at least a track wherein the data are stored. Said data comprise time values. The method is characterised in that it consists in associating with each track; at least a relative time base indicator which is a function of said absolute time base, and in determining some or all the time values contained in a track, with respect to a relative time base indicator associated with said track.
    Type: Grant
    Filed: August 6, 2001
    Date of Patent: February 26, 2008
    Assignee: Alcatel
    Inventors: Christophe Comps, Daniel Boudet, Xavier Sarremejean
  • Patent number: 7205470
    Abstract: A play data editing device edits play data according to a characteristic of a speaker. The play data editing device includes a dividing unit (301) for dividing first play data into second play data per channel; a classifying unit (302) for classifying the second play data into a rhythm part, a melody part, and a base part; a chord processing unit (303) for converting a number of chords of the second play data corresponding to the melody part according to the characteristic of the speaker; a velocity processing unit (304) for converting a velocity of the second play data corresponding to the rhythm part according to the characteristic of the speaker; and a sound range processing unit (305) for shifting a sound range of the second play data corresponding to the base part according to the characteristic of the speaker.
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: April 17, 2007
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Kaoru Tsukamoto, Tomohiro Iwanaga, Hiroto Miyahara
  • Patent number: 7193148
    Abstract: An encoded rhythmic pattern has several groups of velocity values, wherein the velocity values are sorted, such that the groups are included in sequence in an encoded rhythmic pattern. Now, the velocity values concentrated at the beginning of the encoded rhythmic pattern have a higher importance for characterizing the rhythmic gist of a piece of music than velocity values included in additional groups of velocity values. By using such an encoded rhythmic pattern, an efficient database access can be performed.
    Type: Grant
    Filed: October 8, 2004
    Date of Patent: March 20, 2007
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Markus Cremer, Matthias Gruhne, Jan Rohden, Christian Uhle
  • Patent number: 7191128
    Abstract: The present invention relates to method and system for distinguishing speech from music in a digital audio signal in real time.
    Type: Grant
    Filed: February 21, 2003
    Date of Patent: March 13, 2007
    Assignee: LG Electronics Inc.
    Inventors: Mikhael A. Sall, Sergei N. Gramnitskiy, Alexandr L. Maiboroda, Victor V. Redkov, Anatoli I. Tikhotsky, Andrei B. Viktorov
  • Patent number: 7012183
    Abstract: 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.
    Type: Grant
    Filed: November 14, 2003
    Date of Patent: March 14, 2006
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.
    Inventors: Jürgen Herre, Jan Rohden, Christian Uhle, Markus Cremer
  • Patent number: 6576828
    Abstract: Automatic composition apparatus and method are provided which are capable of modifying a rhythm pattern to provide a wide variety of rhythm patterns only through simple setting, and a storage medium that accomplishes this function is provided. Characteristics of a rhythm pattern of a piece of music to be composed are established. Characteristic data that match the established characteristics are retrieved from a rhythm pattern database rhythm pattern database comprising a plurality of rhythm patterns and characteristic data indicating characteristics of each of the rhythm patterns. One of the rhythm patterns is selected, that corresponds to the retrieved characteristic data. Accordingly, different rhythm patterns having the same characteristics can be easily obtained.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: June 10, 2003
    Assignee: Yamaha Corporation
    Inventors: Eiichiro Aoki, Toshio Sugiura
  • Patent number: 6469240
    Abstract: 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.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: October 22, 2002
    Assignee: Sony France, S.A.
    Inventors: François Pachet, Olivier Delerue
  • Patent number: 6429365
    Abstract: During reproduction of performance data in a particular performance style, an instruction can be given for shifting the reproduction to another performance style. In response to such a performance style shift instruction, the performance data of one or more of the performance parts of the currently-reproduced performance style is sequentially controlled, through a plurality of stepwise shift phases, to be replaced with the performance data of one or more of the performance parts of a designated shifted-to performance style. Thus, when the performance style is to be shifted during performance, the performance style shift can be effected in a smooth manner by gradually switching the performance data on a performance-part-by-performance-part basis.
    Type: Grant
    Filed: August 29, 2000
    Date of Patent: August 6, 2002
    Assignee: Yamaha Corporation
    Inventors: Kensuke Ide, Shuzo Karakawa, Shigehiko Mizuno
  • Patent number: 6376760
    Abstract: In response to user's selection of a desired instrument style such as a piano style, only some of memory-stored automatic performance data sets that belong to the selected instrument style are made selectable. On the other hand, a tonal characteristic for manual performance is set to a tonal characteristic corresponding to the selected instrument switch. Thus, in executing an ensemble of manual and automatic performances, even a beginner can readily select and set a tone color and performance pattern. According to another aspect, there is provided a memory storing a plurality of automatic performance data sets and the setting parameters in corresponding relation to a plurality of performance styles. Tone setting parameters include manual performance tone setting parameters that are suited at least for the plurality of performance styles.
    Type: Grant
    Filed: December 29, 1999
    Date of Patent: April 23, 2002
    Assignee: Yamaha Corproration
    Inventors: Akira Tozuka, Yasuhiko Asahi
  • Patent number: 6344607
    Abstract: A method of automatically producing a compilation mix from a set of songs is disclosed. The method comprises the steps of generating (22) a beat profile comprising a temporal map representing an ideal rate of repeat of the dominant beat for the compilation mix at different points in time over the duration of the compilation, generating (21) at least one set of song data indicative of the rate of repeat of the dominant beat for each of the songs in the set of songs, and allocating (24) the songs temporally within the compilation mix by processing the song data together with the temporal map, the songs being located temporally with respect to one another such that the rate of repeat of the dominant beat of the compilation approximates that indicated by the temporal map and end portions of adjacent songs overlap.
    Type: Grant
    Filed: March 14, 2001
    Date of Patent: February 5, 2002
    Assignee: Hewlett-Packard Company
    Inventor: David Trevor Cliff
  • Publication number: 20020007722
    Abstract: Automatic composition apparatus and method are provided which are capable of modifying a rhythm pattern to provide a wide variety of rhythm patterns only through simple setting, and a storage medium that accomplishes this function is provided. Characteristics of a rhythm pattern of a piece of music to be composed are established. Characteristic data that match the established characteristics are retrieved from a rhythm pattern database rhythm pattern database comprising a plurality of rhythm patterns and characteristic data indicating characteristics of each of the rhythm patterns. One of the rhythm patterns is selected, that corresponds to the retrieved characteristic data. Accordingly, different rhythm patterns having the same characteristics can be easily obtained.
    Type: Application
    Filed: September 24, 1999
    Publication date: January 24, 2002
    Inventors: EIICHIRO AOKI, TOSHIO SUGIURA
  • Publication number: 20020005110
    Abstract: 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.
    Type: Application
    Filed: April 5, 2001
    Publication date: January 17, 2002
    Inventors: Francois Pachet, Olivier Delerue
  • Patent number: 6326538
    Abstract: An initial note series is collected from a real-time source of musical input material such as a keyboard or a sequencer playing back musical data, or extracted from musical data stored in memory. The initial note series may be altered to create variations of the initial note series using various mathematical operations. The resulting altered note series, or other data stored in memory is read out according to one or more patterns. The patterns may have steps containing pools of independently selectable items from which random selections are made. A pseudo-random number generator is employed to perform the random selections during processing, where the random sequences thereby generated have the ability to be repeated at specific musical intervals. The resulting musical effect may additionally incorporate a repeated effect, or a repeated effect can be independently performed from input notes in the musical input material.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: December 4, 2001
    Inventor: Stephen R. Kay
  • Patent number: 6297439
    Abstract: A system and method are disclosed for automatically generating music on the basis of an initial sequence of input notes, and in particular to such a system and method utilizing a recursive artificial neural network (RANN) architecture. The aforementioned system includes a score interpreter (2) interpreting an initial input sequence, a rhythm production RANN (4) for generating a subsequent note duration, a note generation RANN (6) for generating a subsequent note, and feedback means for feeding the pitch and duration of the subsequent note back to the rhythm generation (4) and note generation (6) RANNs, the subsequent note thereby becoming the current note for a following iteration.
    Type: Grant
    Filed: August 24, 1999
    Date of Patent: October 2, 2001
    Assignee: Canon Kabushiki Kaisha
    Inventor: Cameron Bolitho Browne
  • Patent number: 6294720
    Abstract: From a given melody motif is extracted a rhythm pattern consisting of a series of rhythmic alignment of notes without a pitch representing the time positions of the notes constituting the melody. Also extracted from the given melody motif are the pitches of the skeleton notes which are notes having primary importance in the rhythm pattern in view of rhythm beats such as the strong beat notes. A rhythm pattern which is similar to the motif rhythm pattern is provided, for example, by searching through a data base including various rhythm patterns. The skeleton notes in the searched similar rhythm pattern are given the pitches identified by the extracted pitches, respectively at corresponding time positions. The non-skeleton notes are given pitches using, for example, passing notes, unison, appoggiatura, changing notes and after notes according to the musical rules relative to the pitch given skeleton notes. Thus, a length of melody similar to the melody motif is obtained.
    Type: Grant
    Filed: February 8, 2000
    Date of Patent: September 25, 2001
    Assignee: Yamaha Corporation
    Inventor: Eiichiro Aoki
  • Patent number: 6245984
    Abstract: The display screen displays measure windows corresponding to the first through fourth measures for a melody to be composed. By clicking the play switch on the screen, a background accompaniment performance covering the four measures is played back to indicate the beats in the progressing tempo, thereby representing the rhythm speed. In time to the accompaniment progression, the user inputs note time points by tapping the input switch such as a space key in the keyboard to constitute a rhythm pattern for a melody progression. The measure window has a time axis in the horizontal direction and a pitch axis in the vertical direction. The tap-inputted note time points are exhibited at the corresponding positions along the time axis from left to right. Each point is dragged with the mouse pointer upward or downward to an intended pitch level, thereby establishing a pitch thereof.
    Type: Grant
    Filed: November 24, 1999
    Date of Patent: June 12, 2001
    Assignee: Yamaha Corporation
    Inventors: Eiichiro Aoki, Shinji Yoshihara, Masami Koizumi, Toshio Sugiura
  • Patent number: 6225547
    Abstract: Sound generation control and instruction operation evaluation is performed by sound group selection and a sound generation instruction, with a mimic guitar having selection buttons for selecting one of a plurality of sound groups bearing a series of sounds, and a picking blade for instructing the generation of a sound. The rhythm-matching game can be enjoyed relatively easily in a manner closer to a realistic state of playing an instrument.
    Type: Grant
    Filed: October 28, 1999
    Date of Patent: May 1, 2001
    Assignee: Konami Co., Ltd.
    Inventors: Motoki Toyama, Shigehito Mukasa, Toru Okubo, Tomoya Yamano
  • Patent number: 6215059
    Abstract: A morphing method and an apparatus for creating musical accompaniments from a combination of musical data selected from stored patterns or tables belonging to accompaniments of different musical styles. Musical data relating to a pattern of a first style and musical data relating to a second style, as well as the desired combination of morphing degree are selected from a plurality of stored data patterns. The musical morphing of the new arrangement is created by conjointly reading in real time one or more data tracks of two or more selected patterns, relating to different families of musical instruments, and combining the read tracks in a new virtual pattern that can be stored and/or played in a musically significant manner, by making the musical measures and the temporal lengths of the tracks of the new pattern, conform with the musical measures and temporal lengths of the tracks relating to one of the patterns selected or creating the new musical arrangement.
    Type: Grant
    Filed: November 24, 1999
    Date of Patent: April 10, 2001
    Assignee: Roland Europe S.p.A.
    Inventors: Francesco Rauchi, Luigi Bruti, Demetrio Cuccu′, Luigi Ferrari
  • Patent number: 6177623
    Abstract: In a music reproducing system, each of characters is allocated in advance a favorite rhythm component and a peculiar figure expressing ability. A sound pressure data producing section produces sound pressure data for each of a pluralty of frequency bands from musical data. A frequency band identifying section identifies the frequency band which beats a rhythm most. A rhythm estimating section derives a changing period of a sound pressure component in the sound pressure data at the identified frequency band and estimates a rhythm component based on the derived changing period. A character managing section cumulatively changes a figure expressing ability of a displayed character according to the matching degree between the estimated rhythm component and a favorite rhythm component of the displayed character. A display control section changes a display figure of the displayed character according to the figure expressing ability thereof while musical data is reproduced.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: January 23, 2001
    Assignees: Konami Co., Ltd., Konami Computer Entertainment Tokyo Co., Ltd.
    Inventor: Nobuhito Ooseki
  • Patent number: 6177626
    Abstract: A music apparatus is constructed for selecting style data of a music piece by designating a style name of the music piece among a plurality of music pieces, which are sorted by genres. In the music apparatus, a style selection table is provided for recording selection codes assigned to the style names of the music pieces in a sorted manner by genres, such that different selection numbers may be assigned to the same style name when the music piece labeled thereby is sorted into more than one genre. A conversion table is provided for recording a correspondence between each selection code and each style name. A data memory is provided for storing each style data of each music piece in correspondence to the style name of each music piece. A monitor presents the selection codes together with the style names according to the style selection table in the sorted manner by the genres. A control is operated to designate a selection code from a desired genre presented on the monitor.
    Type: Grant
    Filed: December 9, 1999
    Date of Patent: January 23, 2001
    Assignee: Yamaha Corporation
    Inventor: Masao Ishibashi
  • Patent number: 6162982
    Abstract: There are provided an automatic composition apparatus and a method for automatically composing a piece of music, which enable a user to generate a large number of melodies having different atmospheres using a reduced number of melody generating templates, and a storage medium storing a program for executing the method. A plurality of piece-of-music-independent templates containing various information independent of pieces of music are supplied to generate melodies of the pieces of music. A plurality of piece-of-music-dependent templates containing various information dependent on the pieces of music are supplied to generate melodies of the pieces of music. A piece-of-music-independent template is selected from the supplied plurality of piece-of-music-independent templates. A piece-of-music-dependent template is selected from the supplied plurality of piece-of-music-dependent templates.
    Type: Grant
    Filed: January 26, 2000
    Date of Patent: December 19, 2000
    Assignee: Yamaha Corporation
    Inventor: Eiichiro Aoki
  • Patent number: 6147291
    Abstract: On an initial screen, a conversion ratio indicated by a style conversion ratio data is displayed in a display area 32. Various kinds of styles are displayed in display areas 33 to 38. In this case, a style which is currently selected is "Samba" which blinks, and the conversion ratio is 50%. When a style number corresponding to samba is "2," a style change is conducted for the original performance data based on a style conversion data corresponding to the style number 2. At this time, the conversion ratio of 50% is referred, and changes of a sound-producing timing, a tone color, an additional instrument, and the like are conducted. An image displayed on a monitor is changed based on an image conversion data.
    Type: Grant
    Filed: January 23, 1997
    Date of Patent: November 14, 2000
    Assignee: Yamaha Corporation
    Inventor: Shuichi Matsumoto