Abstract: Audio data describing an audio signal may be received and used to determine a set of frames of the audio signal. A plurality of note onsets in the set of frames may be identified based on spectral energy of the audio signal in the set of frames. One or more tempos may be computed based on the identified plurality of note onsets. The one or more tempos may be validated based on a tempo validation condition. One or more music states of the audio signal may be determined based on the validated one or more tempos. Audio enhancement of the audio signal may be modified based on the one or more determined states of the audio signal.

Abstract: In a computer system having at least one output device, a set of media programs is accessed. A playlist first portion including a first plurality of the media programs of the set is created. The programs of the first portion are arranged with respect to one another according to a respective first characteristic value of each of the programs of the first portion.

Abstract: A music tempo calculation system uses a microphone to input ambient music; the input is then processed in real time to display beats per minute (BPM). Input from the microphone is decomposed by a detector into a plurality of digital signals ranging from a most sensitive signal to a least sensitive signal. A software-implemented algorithm is applied to the time between peak music values to determine tempo. BPM is then output to a display to provide feedback to performing musicians regarding tempo. The sensitivity of the detector adjusts automatically to compensate for changes in music volume. In another embodiment, the calculated tempo is used to control motors used to animate toys. Once BPM is known, the moment of an upcoming beat can be anticipated. It then becomes possible to start, stop, and reverse directions of a motor in anticipation of an upcoming beat thereby providing the appearance the animated toy is responding to music beat.

Abstract: A portable music player for the playback of a digital audio file comprises a memory for storing a plurality of digital audio files; an audio output; a control for setting a desired change in pitch or tempo; and a digital signal processor configured to process a digital audio file and recover an audio signal therefrom, perceptibly alter one of the pitch and the tempo of the audio signal in response to the desired change in pitch or tempo without perceptibly altering the other of the pitch and tempo, and output the altered audio signal to the audio output.

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.

Abstract: An accompaniment data generating apparatus has a phrase waveform data storing portion for storing sets of phrase waveform data each indicative of a phrase of accompaniment tones preformed at a reference tempo and each corresponding to a different reference note. The accompaniment data generating apparatus obtains a reproduction tempo, obtains the first reference note, selects a set of phrase waveform data corresponding to the second reference note whose tone pitch is different from a tone pitch of the first reference note, and reads out the selected phrase waveform data set at a speed by which the tone pitch of the second reference note of the selected phrase waveform data set agrees with the tone pitch of the first reference note of a case where a set of phrase waveform data corresponding to the first reference note is reproduced at the reference note.

Abstract: The invention generally pertains to a hand-held computing device. More particularly, the invention pertains to a computing device that is capable of controlling the speed of the music so as to affect the mood and behavior of the user during an activity such as exercise. By way of example, the speed of the music can be controlled to match the pace of the activity (synching the speed of the music to the activity of the user) or alternatively it can be controlled to drive the pace of the activity (increasing or decreasing the speed of the music to encourage a greater or lower pace). One aspect of the invention relates to adjusting the tempo (or some other attribute) of the music being outputted from the computing device. By way of example, a songs tempo may be increased or decreased before or during playing. Another aspect of the invention relates to selecting music for outputting based on tempo (or some other attribute). For example, the computing device may only play songs having a particular tempo.

Abstract: A method of matching the tempo and phase in pieces of music which allows the conjunction of the pieces of music to form a continuous stream of music. The interactive music player which digitally executes the method of matching the tempo and phase in pieces of music is also disclosed.

Abstract: Apparatus and methods are described for facilitating improving health of a user. In accordance with some applications, a first physiological variable, which is indicative of a voluntary action of the user, is received. A second physiological variable, which is not entirely under the direct voluntary control of the user, is received. Responsive to the first and second variables, the second physiological variable is changed in a desired manner, by using circuitry to direct the user to modify a parameter of the voluntary action, by generating an output signal. Other applications are also described.

Abstract: A music application guides a user with some musical experience through the steps of creating and editing a musical enhancement file that enhances and plays in synchronicity with an audio signal of an original artist's recorded performance. This enables others, perhaps with lesser musical ability than the original artist, to play-along with the original artist by following melodic, chordal, rhythmic, and verbal prompts. The music application accounts for differences in the timing of the performance from a standard tempo by guiding the user through the process of creating a tempo map for the performance and by associating the tempo map with MIDI information of the enhancement file. Enhancements may contain MIDI information, audio signal information, and/or video signal information which may be played back in synchronicity with the recorded performance to provide an aural and visual aid to others playing-along who may have less musical experience.

Abstract: A music application guides a user with some musical experience through the steps of creating and editing a musical enhancement file that enhances and plays in synchronicity with an audio signal of an original artist's recorded performance. This enables others, perhaps with lesser musical ability than the original artist, to play-along with the original artist by following melodic, chordal, rhythmic, and verbal prompts. The music application accounts for differences in the timing of the performance from a standard tempo by guiding the user through the process of creating a tempo map for the performance and by associating the tempo map with MIDI information of the enhancement file. Enhancements may contain MIDI information, audio signal information, and/or video signal information which may be played back in synchronicity with the recorded performance to provide an aural and visual aid to others playing-along who may have less musical experience.

Abstract: The embodiments herein provide a beat counter device for sampling a plurality of voice samples by differentiating tempos from each other in a selected rhythm. The beat counter device comprises a seven segment indicator, a display unit, at least one directional key, an adjustment wheel, a volume button, an ON/OFF button, a microphone, a microphone port and a head phone port. The pressing operation of the ON/OFF button results in the microphone to perform a sampling of voices samples by separating a tempo from another tempo associated with a selected rhythm. The seven-segment indicator counts the number of tempos in the selected rhythm in each multi-measure time signature. The sampled voices are outputted through the headphone port.

Abstract: A personal music mixing system with an embodiment providing beats and vocals configured using a web browser and musical compositions generated from said beats and vocals. Said embodiment provides a plurality of beats and vocals that a user may suitably mix to create a new musical composition and make such composition available for future playback by the user or by others. In some embodiments, the user advantageously may hear a sample musical composition having beats and vocals with particular user-configured parameter settings and may adjust said settings until the user deems the musical composition complete.

Abstract: An information processing apparatus includes: a musical composition section extracting unit which extracts musical composition sections with tempos which are close to a preset reference tempo based on tempo information indicating a tempo of each section constituting musical compositions; a harmonization level calculating unit which calculates a harmonization degree for a pair of musical composition sections extracted by the musical composition section extracting unit, based on chord progression information indicating chord progression of each section constituting musical compositions; and a harmonization section extracting unit which extracts a pair of sections with a high harmonization degree for the musical compositions calculated by the harmonization level calculating unit from among sections extracted by the musical composition section extracting unit, wherein the harmonization level calculating unit weights the harmonization degree for the musical compositions such that a large value is set to the harmon

Abstract: Disclosed herein are various systems and methods for audio and/or visual playback. A system can include a first data encoded according to a first file format, a second data encoded according to a second file format, and a file using the first and second data to enable synchronized audio and/or visual playback of the data on one or more receiving elements. In certain instances, at least a portion of the second data includes information relating to finger positions on a musical instrument.

Abstract: A musical score position estimating apparatus includes a sound feature quantity generating unit configured to generate a feature quantity of an input sound signal, and, a score position estimating unit configured to calculate a weight coefficient based on the feature quantity of the sound signal and a feature quantity of musical score information and estimates a musical score position using a virtual musical score position and a virtual tempo corresponding to the weight coefficient.

Abstract: A tempo detection device includes: a basic feature amount extracting section which extracts a plurality of types of basic feature amounts from an input audio signal; a weighting and adding section which weights and adds the basic feature amounts of the plurality of types extracted in the basic feature amount extracting section to obtain an addition signal; and a tempo detecting section which detects BPM indicating the tempo on the basis of a periodic component included in the addition signal obtained in the weighting and adding section.

Abstract: Methods for automatically analyzing and/or performing music are described. One embodiment concerns a method for assigning chords to a musical score indicative of a sequence of time segments, each time segment comprising at least one note, the method comprising assigning a chord to each time segment responsive to consonance/dissonance relationships between the assigned chord and the notes of at least two of the time segments. Optionally, consonance/dissonance relationships include existence of a dissonant between a chord assigned to a time segment and a note of the time segment and existence of resolution to said dissonant.

Abstract: A tempo detecting device 100 includes an envelope detecting means 1 that detects an envelope of musical composition data, a frequency-component detecting means 2 that performs a discrete Fast Fourier Transform processing on the detected envelope to thereby detect a frequency spectrum, and a tempo detecting means 3 that detects, based on a characteristic of the detected frequency spectrum, a tempo of the musical composition data.

Abstract: A music information memory unit stores music information including identification information on each piece of music and pace information thereof. A process control unit selects out a predetermined number of pieces of music information each of whose identification information is to be presented from the music information memory unit. A notification image generating unit generates a notification image in which an object is moved in a scrolling manner based on the pace information of each piece of the selected music information. An image display control unit synthesizes the identification information of each piece of the selected music information with each of the generated notification images, and displays the synthesized image.

Abstract: A computer implemented method allows a user to collectively adjust tracks in a digital workstation. The method includes causing the display of at least one internal track and at least one external track. The method then allows the collective adjusting of the tempo, tempo and pitch, or tuning of each internal track and each external track in response to receiving a command. The adjusted tempo and/or adjusted tuning value can be displayed.

Abstract: 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.

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.

Abstract: A robot includes: a sound collecting unit collecting and converting a musical sound into a musical acoustic signal; a voice signal generating unit generating a self-vocalized voice signal; a sound outputting unit converting the self-vocalized voice signal into a sound and outputting the sound; a self-vocalized voice regulating unit receiving the musical acoustic signal and the self-vocalized voice signal; a filtering unit performing a filtering process; a beat interval reliability calculating unit performing a time-frequency pattern matching process and calculating a beat interval reliability; a beat interval estimating unit estimating a beat interval; a beat time reliability calculating unit calculating a beat time reliability; a beat time estimating unit estimating a beat time on the basis of the calculated beat time reliability; a beat time predicting unit predicting a beat time before the current time; and a synchronization unit synchronizing the self-vocalized voice signal.

Abstract: The present invention relates to a vibration authoring tool, a vibration authoring method, and a storage medium recorded with the same. To this end, the present invention provides a vibration authoring tool, including: a scale defining unit that defines a scale by controlling the frequencies, amplitudes, and waveforms of the vibration; a clef defining unit that defines a clef by corresponding each staff line of a vibration score to a portion of the frequencies and corresponding head numbers of each note to a portion of the amplitudes; a score authoring unit that authors a score by inputting symbols including notes, rests, and dynamics in the vibration score; and a reproducing unit that reproduces the score authored through the score authoring unit.

Abstract: The invention generally pertains to a hand-held computing device. More particularly, the invention pertains to a computing device that is capable of controlling the speed of the music so as to affect the mood and behavior of the user during an activity such as exercise. By way of example, the speed of the music can be controlled to match the pace of the activity (synching the speed of the music to the activity of the user) or alternatively it can be controlled to drive the pace of the activity (increasing or decreasing the speed of the music to encourage a greater or lower pace). One aspect of the invention relates to adjusting the tempo (or some other attribute) of the music being outputted from the computing device. By way of example, a songs tempo may be increased or decreased before or during playing. Another aspect of the invention relates to selecting music for outputting based on tempo (or some other attribute). For example, the computing device may only play songs having a particular tempo.

Abstract: A timer may be for timing a current time period corresponding to an amount of time since a previous operation of an operator. Circuitry may be for processing data to carry out a performance based on a set tempo. The circuitry may be configured to change a position of the performance to a specified position of the performance in a case where the operator is operated and the current time period equals or exceeds a specified time period. The circuitry may be configured to change the tempo based on the current time period in a case where the operator is operated and the current time period is less than the specified time period.

Abstract: A performance apparatus capable of reproducing music pieces while making changeover between the music pieces without disturbing the rhythm of exercise, dance, or the like performed by a user to the rhythm of music. A beat position is acquired that will appear in a preceding performance data for the first time after a preparatory time required for changing the reproduction of the preceding music piece to the reproduction of a subsequent music piece elapses from when a music selection instruction is given. The reproduction of the subsequent music piece is started at the same time when the music is reproduced up to the acquired beat position.

Abstract: A computer implemented method allows a DAW to adjust a variable tempo of an audio file independent of a global tempo. The method includes causing the display of a musical arrangement having a global tempo. The musical arrangement includes an audio file having a variable tempo which is independent of the global tempo. The method includes adjusting the variable tempo of the audio file, wherein the variable tempo begins at an initial tempo and adjusts to an end tempo over a set length of time. The method can also include outputting the audio file having the variable tempo in response to a command to play the musical arrangement.

Abstract: Disclosed is an audio device that adjusts the cadence of played songs. A user sensor determines cadence data based on movement of the user. A desired cadence is determined based on the cadence data received from the sensor. The cadence of songs is determined by low pass filtering digital representations of the songs and determining the period (T) of the back beat of the songs. An adjustment of the period (T) of the songs is then determined such that the adjustment of the period (T) of the songs results in the songs having the desired cadence. The period (T) of the back beat of the subsequent songs are then adjusted.

Abstract: Disclosed is an audio device that adjusts the cadence of played songs. All songs in a playlist may be adjusted to match the cadence of a particular song. First, the desired cadence of a reference song is determined by low pass filtering a digital representation of the reference song and determining the period (T) of the back beat of the reference song. The cadence of subsequent songs is then determined by low pass filtering digital representations of the subsequent songs and determining the period (T) of the back beat of the subsequent songs. An adjustment of the period (T) of the subsequent songs is then determined such that the adjustment of the period (T) of the subsequent songs results in the subsequent songs having the desired cadence (i.e., the cadence of the reference song). The period (T) of the back beat of the subsequent songs are then adjusted.

Abstract: A system and method are provided wherein a server based music creator is accessible by a client for the creation of composite audio files. The method and system receives, from a remote client computer via a network connection, a play sequence for playing audio segments, wherein a play sequence identifies one or more audio segments and associates at least one temporal location in a playback timeline with each audio segment. A composite audio file including each audio segment identified in the play sequence is generated, such that the composite audio file when played plays each audio segment identified by the play sequence at each audio segment's associated temporal location(s). The composite audio file is then transmitted to the client computer. In another non-limiting example, the play sequence includes one or more track sequences.

Abstract: A signal processing apparatus is disclosed which processes an audio signal. The signal processing apparatus includes a detection section which detects a first tempo from an audio signal, a calculation section which calculates a speed feeling that indicates whether the first tempo is fast or slow, and a determining section which determines a second tempo by correcting the first tempo using the speed feeling.

Abstract: Method for providing an overview of pieces of music, comprising: providing at least two pieces of music; determining at least two sections of said pieces of music, wherein one of said sections is determined from one of said pieces of music and another of said sections is determined from another of said pieces of music; and arranging said sections in a sequence.

Abstract: A music editing apparatus is provided that uses so-called time line meta data that describe a beat and melody structure of a song to automatically accomplishes an automatic DJ remix play with a low load. The apparatus also includes a synchronous reproduction controlling section which sends a master beat to the remix processing section and reproduces a plurality of songs corresponding to a remix process which the remix processing section designates corresponding to a remix pattern and the meta data and a mixing section which mixes the songs reproduced by the synchronous reproduction controlling section.

Abstract: A performance system capable of improving operability of switching local-on/off of performance terminals. T performance system comprises a performance terminal and a controller capable of communicating with each other. The performance terminal is comprised of a performance operation device, a tone generator, and a control device adapted to transmit performance data generated by the performance operation device to the controller, execute a communication process for inputting performance data received from the controller to the tone generator, and execute a mode switching process for switching between a local-on mode in which the performance operation device inputs the generated performance data to the tone generator to generate a tone and a local-off mode in which the performance operation device does not input the generated performance data to the tone generator.

Abstract: A musical piece correction apparatus corrects a sounding timing (note-on timings) of a sound constituting apart of a musical piece. First, the musical piece correction apparatus reads, from storage means, music performance data indicating sounding timings in the musical piece. Next, the musical piece correction apparatus sets a plurality of reference timings (grids) in a performance period of the musical piece, and sets, for each reference timing, a reference period (area) including said each reference timing. At this point, from among sounding timings included in the reference period, a nearest sounding timing to said each reference timing is selected, and the selected sounding timing is corrected so as to coincide with said each reference timing.

Abstract: A method for humanizing a music sequence (S), the music sequence (S) comprising a multitude of sounds (s1, . . . , sn) occurring on times (t1, . . . , tn) comprises the steps generating, for each time (ti) a random offset (oi), adding the random offset (oi) to the time (ti) in order to obtain a modified time (ti+oi); and outputting a humanized music sequence (S?) wherein each sound (si) occurs on the modified time (ti+oi). According to the invention, the power spectral density of the random offsets has the form 1 f ? . wherein 0<?<2.

Abstract: The recommended playlist creating section generates several recommended candidate playlists having different reproduction orders as recommended candidate playlists each indicating a recommended reproduction order when one or more contents are sequentially reproduced. The evaluating section evaluates how each of the recommended candidate playlist is close to the ideal fluctuation stored in the ideal fluctuation storing section. The recommended playlist creating section selects a recommended playlist from among the recommended candidate playlists based on a result of evaluation by the evaluating section. This present invention is applicable to a content reproducing unit having a playlist creating function.

Abstract: A plurality of template data files are provided, each designating a structure and conditions of a music piece, and having a plurality of tracks, each track being assigned to a particular instrument group and defining a time progression structure of music to be performed by the assigned instrument group by setting performance sections at time positions to be performed by the assigned instrument group along the time progression of music. A plurality of component data files are provided, each representing a length of musical phrase that constitutes a predetermined tone progression pattern of a predetermined tone color for a performance by a particular instrument group. When conditions such as a tempo for a music piece to be created are given, a template data file that satisfies the given conditions is selected. Then, component data files are picked up according to the conditions designated by the selected template data file and the musical phrases are placed on the tracks in the template data file.

Abstract: The invention generally pertains to a hand-held computing device. More particularly, the invention pertains to a computing device that is capable of controlling the speed of the music so as to affect the mood and behavior of the user during an activity such as exercise. By way of example, the speed of the music can be controlled to match the pace of the activity (synching the speed of the music to the activity of the user) or alternatively it can be controlled to drive the pace of the activity (increasing or decreasing the speed of the music to encourage a greater or lower pace). One aspect of the invention relates to adjusting the tempo (or some other attribute) of the music being outputted from the computing device. By way of example, a songs tempo may be increased or decreased before or during playing. Another aspect of the invention relates to selecting music for outputting based on tempo (or some other attribute). For example, the computing device may only play songs having a particular tempo.

Abstract: A method of matching the tempo and phase in pieces of music which allows the conjunction of the pieces of music to form a continuous stream of music. The interactive music player which digitally executes the method of matching the tempo and phase in pieces of music is also disclosed.

Abstract: Various method and system embodiments of the present invention are directed to computational estimation of a tempo for a digitally encoded musical selection. In certain embodiments of the present invention, described below, a short portion of a musical selection is analyzed to determine the tempo of the musical selection. The digitally encoded musical selection sample is computationally transformed to produce a power spectrum corresponding to the sample, in turn transformed to produce a two-dimensional strength-of-onset matrix. The two-dimensional strength-of-onset matrix is then transformed into a set of strength-of-onset/time functions for each of a corresponding set of frequency bands. The strength-of-onset/time functions are then analyzed to find a most reliable onset interval that is transformed into an estimated tempo returned by the analysis.

Abstract: A performance control apparatus that prevents erroneous key depressions from disturbing musical performance and allow an inexperience player to play at ease. A performance operator is adapted to generate performance operation information in response to performance operations by a user, the performance operation information including information indicative of performing timing in automatic performance. A storage device is adapted to store data of a music piece comprising sequence data of note information for individual musical tones.

Abstract: There is provided a music editing apparatus for remix reproducing a plurality of sound materials, each formed from part or the entirety of a music piece, in combination, including a reproduction pattern control section, a reproduction speed control section; and a pitch control section.

Abstract: A performance control apparatus which can actually reproduce performance information without a long sounding blank time period being produced even if the performance information includes information indicative of a long sounding blank time period. Performance data md-A including at least key-on event data KON and time data TIME that defines sounding timing is read out and output. When the time data TIME in the readout performance data md-A is indicative of a longer sounding blank time period than a predetermined time period, the sounding blank time period is reduced or eliminated in outputting the performance data md-A.

Abstract: A method of matching the tempo and phase in pieces of music which allows the conjunction of the pieces of music to form a continuous stream of music. The interactive music player which digitally executes the method of matching the tempo and phase in pieces of music is also disclosed.

Abstract: A music piece reproduction device comprises a recording section (12) for recording a plurality of music piece data each possessing a sound data file and a beat guide file containing information on the sound data file, and a control section (1) for controlling so as to connect the sound data files recorded in the recording section (12), using a predetermined method. A command comment, indicating what kind of editing is capable of being performed and at which position in the music piece, is added to the beat guide file, and the control section successively reproduces a preceding music piece and a subsequence music piece based on the command comments of these two music pieces.

Abstract: There is provided a tempo detection apparatus capable of detecting, from the acoustic signal of a human performance of a musical piece having a fluctuating tempo, the average tempo of the entire piece of music and the correct beat positions, and further, the meter of the musical piece and the position of the first beat.

Abstract: An electronic musical apparatus for training to play the apparatus in correct timing comprises a play timing notifying device which notifies reference time points in a music progression for operating the apparatus to play music, an operation detecting device for detecting each of player's operations on the apparatus as a player operates the apparatus with reference to the reference time points, a time deviation detecting device for detecting a time deviation of each of the player's operations from corresponding one of the reference time points, a tolerance range setting device for setting a tolerance range with respect to each of the reference time point by taking into consideration a plurality of the past detected time deviations, the tolerance range being for evaluating whether a detected time deviation falls within the tolerance range or not, and a tone generation control device which controls generation of tones for the player's operations differently according to whether each detected time deviation fall