Abstract: A vocal tuning device for use with a microphone is provided, comprising a housing having a first end and a second end, wherein the first end includes a first connector operably matable with a microphone and capable of receiving an input signal from the microphone in response to a user's voice; a display on the housing capable of providing a visual indicia to a user; processing circuitry within the housing and operably connected between the first connector and the display, wherein the processing circuitry compares the frequency of the input signal to a natural note frequency, and causes the visual indicia to indicate whether the natural note frequency is matched by the frequency of the input signal. In one embodiment, the second end of the device includes a second connector operably matable with a microphone cable.

Abstract: A system and method is disclosed teach how to synthesizing audio. It allows specification of a musical sound to be generated. It synthesizes an audio source, such as noise, using parameters to specify the desired frequency slit spacing and the desired noise-to-frequency band ratio, then filtering the audio source through a sequence of filters to obtain the desired frequency slit spacing and noise to frequency band ratio. It allows modulation of the filters in the sequence. It outputs musical sound.

Abstract: Described is a technology by which a playback list comprising similar songs is automatically built based on automatically detected/generated song attributes, such as by extracting numeric features of each song. The attributes may be downloaded from a remote connection, and/or may be locally generated on the playback device. To build a playlist, a seed song's attributes may be compared against attributes of other songs to determine which other songs are similar to the seed song and thus included in the playlist. Another way to build a playlist is based on similarity of songs to a set of user provided-attributes, such as corresponding to moods or usage modes such as “resting” “reading” “jogging” or “driving” moods/modes. The playlist may be dynamically adjusted based on user interaction with the device, such as when a user skips a song, queues a song, or dequeues a song.

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: Game processing apparatus comprises means for indicating successive target actions to be executed by a user, each target action having an associated target time of execution; and scoring logic in which detected user actions are compared with the target actions, the storing logic comprising: an input arrangement by which user actions may be detected; means for comparing a detected sequence of user actions with a sequence of target actions; and means for detecting a timing offset between the sequence of user actions and a corresponding sequence of target actions; in which the comparison of subsequent user actions with respective target actions is arranged to apply the timing offset as a relative displacement between the detected user actions and the target times.

Abstract: A method includes receiving a user selection of a musical piece; providing performance cues to a user to perform musical events on a musical instrument, wherein the performance cues are synchronized to expert performance data of the musical piece; receiving audio data corresponding to musical events performed by the user on the musical instrument; detecting fundamental frequencies associated with the user-performed musical events; determining an extent to which the user-performed musical events have been correctly or incorrectly performed; providing real-time or near real-time audio feedback and/or visual feedback indicating the extent to which the user-performed musical events have been correctly or incorrectly performed; and using the expert performance data as real-time or near real-time audio and/or video feedback by controlling an output level of the expert performance data output to the user during a session.

Abstract: An automatic marking method for Karaoke vocal accompaniment is provided. In the method, pitch, beat position and volume of a singer are compared with the original pitch, beat position and volume of the theme of a song to generate a score of pitch, a score of beat and a score of emotion respectively, so as to obtain a weighted total score in a weighted marking method. By using the method, the pitch, beat position and volume error of each section of the song sung by the singer can be exactly worked out, and a pitch curve and a volume curve can be displayed, so that the singer can learn which part is sung incorrectly and which part needs to be enhanced. The present invention also has the advantages of dual effects of teaching and entertainment, high practicability and technical advancement.

Abstract: Melody and accompaniment audio signals are received and processed to identify one or more harmony notes and a harmony signal is produced based on the one or more harmony notes. Typically the melody note is identified and a spectrum of the accompaniment audio signal and is obtained, and one or more harmony notes are identified based on the melody note and the accompaniment spectrum. The melody, and accompaniment signals can be processed in real-time for combination with the harmony signal in an audio performance. In some examples, audio signals are processed and harmonies generated for subsequent performance based on, for example, MIDI files generated from the audio signals.

Abstract: An information processing apparatus is provided which includes a signal conversion unit for converting an audio signal to a pitch signal indicating a signal intensity of each pitch, a melody probability estimation unit for estimating for each frame a probability of each pitch being a melody note, based on the audio signal, and a melody line determination unit for detecting a maximum likelihood path from among paths of pitches from a start frame to an end frame of the audio signal, and for determining the maximum likelihood path as a melody line, based on the probability of each pitch being a melody note, the probability being estimated for each frame by the melody probability estimation unit.

Abstract: Disclosed herein are systems, methods, and non-transitory computer-readable storage media for generating customized chords. An exemplary method includes providing a storage medium, including a database storing data corresponding to a plurality of predefined chords to be played by the virtual instrument. The method then includes receiving a plurality of user inputs that enable a user to select a desired custom chord other than a predefined chord stored in the database, the user inputs being displayed on a display of said device. The method further includes creating the desired chord from the predefined chord data stored in the database in accordance with a predefined algorithm, and causing data corresponding to the created custom chord to be stored by the device such that the virtual instrument is able to play the created desired chord.

Abstract: A method of automatically acquiring a feature segment in a music file includes receiving, with a processing device, a music file; converting the music file into a character string; evaluating at least one character string segment in the character string based on one or more music features; and determining, based on an evaluation result, at least one music segment corresponding to at least one character string segment in the character string as a feature segment.

Abstract: Processor-implemented methods and systems for polyphonic note detection are disclosed. The method includes converting a portion of a polyphonic audio signal from a time domain to a frequency domain. The method includes detecting a fundamental frequency peak in the frequency domain. The method then detects a defined number of integer-interval harmonic partials. If a defined number of integer-interval harmonic partials relative to the fundamental frequency peak are detected the fundamental frequency is recorded as a detected note. This process is repeated for each fundamental frequency until each note in the polyphonic audio signal has been detected. For example, this method allows detection of each note in a strummed guitar chord to provide feedback on the tuning of each string in a strummed chord or allows detection and feedback of the timing and pitch errors for guitar chords played along with a reference track.

Abstract: A musical score extracting unit specifies areas of each of measures and the measure number of each measure on a musical score based on positions of musical-score composing elements such as part lines, staffs and bar lines. A music-data dividing unit divides music-data file based on time information in the music-data file to generate plural unit music-data files containing pitch information and time information for one measure. The music-data dividing unit specifies measures where repeat marks are placed based on sorts and positions of the repeat marks and positions of the part lines, staffs and bar lines on the musical score, thereby removing unit music-data file to repeat as instructed by the repeat marks from the plural music-data files to obtain a final unit music-data files associated with the respective measure numbers.

Abstract: A system for scoring a singing voice comprises receiving a singing reference audio signal and/or a user audio signal and/or a pitch contour representation (PCR) of the reference and/or user singing audio signals; a processor means connected to the receiving means and comprising a pitch contour representation (PCR) module (10) for determining a PCR of the singing reference and/or user audio signal, a time synchronization module for time synchronizing the PCRs of the reference and user audio signals respectively. A selection module is provided for selecting a segment of the PCRs based on pre-defined criteria. A cross-correlation module is provided for performing time-warped cross-correlation on the selected segments of the PCRs and outputting a cross-correlation score.

Abstract: A programmable rhythm trainer configured to operate on a general purpose computing device including a handheld computing device or a mobile communication device. According to an embodiment, the programmable rhythm trainer comprises a component configured to generate a mix or chain comprising one or more bars and each the bars comprising one or more note arrangements. According to an embodiment, the programmable rhythm trainer comprises a component configured to rearrange one or more of the bars in the chain and save the rearranged chain to memory. According to an embodiment, the programmable rhythm trainer comprises a component configured to rearrange one or more of the note arrangements belonging to one of the bars. According to an embodiment, the programmable rhythm trainer comprises a component configured to set a beats-per-minute for one or more the chains in response to a user input.

Abstract: During reproduction of drum-part performance tones with a predetermined performance pattern, comprising a combination of a plurality of drum tone colors, based on automatic performance style data including at least performance pattern data associated with a drum kit defining a combination of the plurality of drum tone colors, a drum kit editing section replaces any one or more of the drum tone colors, defined in the drum kit, with one or more other drum tone colors. Thus, even during an automatic accompaniment, a user can readily replace any one or more of the drum tone colors, defined in the drum kit allocated to the drum part, with one or more other drum tone colors while promptly checking an automatic accompaniment having the other drum tone colors reflected therein.

Abstract: There is provided a musical score display apparatus which can display a musical score at multiple levels ranging from a partial part to all parts and can display a comment relating to the displayed musical score based on the creation date and time, and a program for realizing a musical score display method. Comment data created in a setting period are displayed on a timeline by using comment icons at positions corresponding to creation date and time. When the highest level button among level selection buttons is operated, the comment icons relating to all parts are displayed on the timeline. When the lowest level button is operated in this state, the comment icon relating to the part to be deleted when the lowest level is selected is also deleted from the timeline in the display musical score of all parts.

Abstract: A chord detection apparatus capable of detecting a wide variety of chords musically related to realtime performance. Degree name candidates each having a function that can come next are extracted in a first extraction process, degree name candidates corresponding to an interrupted cadence are extracted in a second extraction process, and degree name candidates corresponding to a non-functional chord progression technique are extracted in a third extraction process. The degree name candidates extracted in these extraction processes are developed into chord names according to a current tonality, and one of chords represented by the chord names is selected according to performance data and output to an automatic accompaniment apparatus for sound production.

Abstract: A music sound generation apparatus generates music-sound data based on sound source data, and outputs the music-sound data in synchronization with audio data obtained separately from the music-sound data. A channel assigner assigns a predetermined number of channels to the audio data and the music-sound data. A read control unit reads the audio data and the music-sound data in accordance with their assigned channels. A signal processing unit generates predetermined music by controlling the sound level of the read audio data and the read music-sound data on each assigned channel and mixing the audio data and the music-sound data. When detecting no unoccupied channel, the channel assigner determines, as an unoccupied channel, a channel selected from channels excluding the channel to which the audio data has been assigned. The signal processing unit performs sound elimination on the unoccupied channel.

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: The technology disclosed relates to audio signal processing. It includes a series of modules that individually are useful to solve audio signal processing problems. Among the problems addressed are buzz removal, selecting a pitch candidate among pitch candidates based on local continuity of pitch and regional octave consistency, making small adjustments in pitch, ensuring that a selected pitch is consistent with harmonic peaks, determining whether a given frame or region of frames includes harmonic, voiced signal, extracting harmonics from voice signals and detecting vibrato. One environment in which these modules are useful is transcribing singing or humming into a symbolic melody. Another environment that would usefully employ some of these modules is speech processing. Some of the modules, such as buzz removal, are useful in many other environments as well.

Abstract: An apparatus for creating a musical composition comprising an audio interface, and audio converter module, and a multi-track compositor module is disclosed. The audio interface operably receives audio from an audio input device and outputting audio to an audio output device. The audio converter module is operably connected to the audio interface to convert audio received via the audio interface into an audio track having one or more partitions. The multi-track compositor module is configured to receive a first audio track and a second audio track and automatically score each partition of the first and second audio tracks based on one or more criteria. The multi-track compositor module is then configured to construct a third audio track from the partitions of the first and second audio tracks based on the scores for each partition. A method is also provided.

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 portable audio control system that controls an audio signal transmitted from an electronic device, including an earphone device and an audio control device. The audio control device includes an audio source receiver, a signal synthesis module, and an audio output unit. The audio receiver, which is connected with the electronic device, is used for receiving the audio signal. The signal synthesis module receives both the audio signal and a voice signal coming from an external audio resource, and then synthesizes those signals. The audio transmitter is used to output the synthesized sound to the earphone device. As users utilize the portable audio control system to connect with the electronic device, both sound from the electronic device and the external voice or song can be listened at the same time.

Abstract: The technology disclosed relates to audio signal processing. It includes a series of modules that individually are useful to solve audio signal processing problems. Among the problems addressed are buzz removal, selecting a pitch candidate among pitch candidates based on local continuity of pitch and regional octave consistency, making small adjustments in pitch, ensuring that a selected pitch is consistent with harmonic peaks, determining whether a given frame or region of frames includes harmonic, voiced signal, extracting harmonics from voice signals and detecting vibrato. One environment in which these modules are useful is transcribing singing or humming into a symbolic melody. Another environment that would usefully employ some of these modules is speech processing. Some of the modules, such as buzz removal, are useful in many other environments as well.

Abstract: Methods, systems, and devices are described for automatically converting audio input signal data into musical score representation data. Embodiments of the invention identify a change in frequency information from the audio signal that exceeds a first threshold value; identify a change in amplitude information from the audio signal that exceeds a second threshold value; and generate a note onset event, each note onset event representing a time location in the audio signal of at least one of an identified change in the frequency information that exceeds the first threshold value or an identified change in the amplitude information that exceeds the second threshold value. The generation of note onset events and other information from the audio input signal may be used to extract note pitch, note value, tempo, meter, key, instrumentation, and other score representation information.

Abstract: The technology disclosed relates to audio signal processing. It includes a series of modules that individually are useful to solve audio signal processing problems. Among the problems addressed are buzz removal, selecting a pitch candidate among pitch candidates based on local continuity of pitch and regional octave consistency, making small adjustments in pitch, ensuring that a selected pitch is consistent with harmonic peaks, determining whether a given frame or region of frames includes harmonic, voiced signal, extracting harmonics from voice signals and detecting vibrato. One environment in which these modules are useful is transcribing singing or humming into a symbolic melody. Another environment that would usefully employ some of these modules is speech processing. Some of the modules, such as buzz removal, are useful in many other environments as well.

Abstract: Methods for dynamically analyzing input sounds and processing the input sounds to define a new set of output sounds are provided. One method includes receiving a first set of input sounds and a second set of input sounds, where each of the first and second sets of input sounds are processed to identify one of a tone, intensity, or frequency, and a duration. The method defines a node for each identified input sound and a link between the input sounds of the first and second sets of input sounds. The nodes and links from the first and second sets of input sounds create a respective first and second finite state automata. A history value is defined for processing the nodes of the first and second sets of input sounds, and the history value defines a number of previous nodes that will be identical in each of the first and second sets of input sounds before a particular node is shared between the first and second sets of input sounds.

Abstract: A method, apparatus and computer program product for mixing audio is presented. A plurality of tracks is displayed in a user interface, each track of the plurality of tracks including at least one audio clip. Each audio clip is designated as either a foreground clip or a background clip. The foreground clips are analyzed and loudness corrected. The background clips are analyzed and a distance value between the loudness corrected foreground clips and the background clips is defined. Keyframes are added to some of the audio clips, the keyframes providing a fade between levels of the background clips to take into account the loudness corrected foreground clips and a sequenced audio file is produced from the corrected foreground clips, the background clips and the keyframes.

Abstract: A multi-media entertainment device enabling a user to control sound/audio elements of a music or sound program while video is displayed and which is correlated to the played sound elements. The user interacts with triggers such as laser beams that can be interrupted by a player's fingers to play music. The video track is displayed, and the user controls the audio play of the sound track by interrupting the beams, each beam associated with a different instrument. This allows the user to play the multimedia device along with a displayed video performance, in synchronization with one or more musicians displayed on a display. The user's play may be scored as a function of the user's accuracy of engaging the triggers. For instance, a user can strum a trigger associated with a guitar program in unison with a guitarist on the display. The music created by the user interacting with multiple triggers is sympathetic and always synchronized to the video performance.

Abstract: A split keyboard with an optional middle section of keys for controlling regular PC input to a host, two play music, and to input and play music with a multiple octave keyboard that when the middle section of keys are removed can be portable to travel. And when working on just the split keyboard inputting data to a host the operator arms are not abducted do to the perpendicular advantage or slide apart keyboard where an operators arms are perpendicular to the keyboard keys.

Abstract: A user interface for a virtual musical instrument presents a number of chord touch regions, each corresponding to a chord of a diatonic key. Within each chord region a number of touch zones are provided, including treble clef zones and bass clef zones. Each treble clef touch zone within a region will sound a different chord voicing. Each bass clef touch zone will sound a bass note of the chord. Other user interactions can modify or mute the chords, and vary the bass notes being played together with the chords. A set of related chords and/or a set of rhythmic patterns can be generated based on a selected instrument and a selected style of music.

Abstract: A computer implemented method allows a user to adjust tracks in a musical arrangement. The method involves a user selecting a musical position of an audio track, which the user desires to adjust in time, either by compressing it or expanding it, by indicating with a pointing device, such as a mouse, the position in the time line of the audio track that the user wishes to alter. A first marker is then displayed at the selected musical position in the audio track. Boundary markers defining transients in the audio signal surrounding the selected musical position are then automatically generated by analysis of the audio signal, and are displayed on the audio track. The two boundary markers define an audio segment that is to be adjusted in tempo by the user moving the first marker along the time line.

Abstract: A system for creating a musical score may be provided. The system may include a composition tool application that is configured to provide a plurality of instrument interfaces to a user. The instrument interfaces may include a keyboard interface, a stringed instrument interface, and a percussion interface. The plurality of instrument interfaces may each include a representation of an instrument and a score section for illustration of the musical score. The composition tool application may be configured to provide the user with the ability to select a portion of the representation of the instrument. In response to the selection of the portion of the representation of the instrument, the composition tool application may be configured to provide a representation of a note for the instrument in the score section.

Abstract: When musical performance data is input to the electronic musical instrument in accordance with user's operation for musical performance, the electronic musical instrument detects a chord in accordance with the input musical performance data at the defined timing T3 at which the chord detection timing ends. On the electronic musical instrument, furthermore, the application of the detected chord to the musical performance is instructed by user's pedal (foot switch) operation of turning off the pedal. In a case where the instruction to apply the chord has been already accepted at the chord detection timing T3 or in a case where the instruction to apply the chord has been accepted by user's pedal-off operation at a point in time (Tpf) situated between the chord detection timing T3 and the time limit T4, the detected chord is to be applied to the musical performance.

Abstract: The teachings described herein are generally directed to a system, method, and apparatus for learning music through an educational audio track embodied on a computer readable medium. The system can comprise components including a processor, an input device, a database, a transformation module, an emulation recording module, an integration engine, an output module, and an output device, wherein each component is operable in itself to perform it's function in the system and operable with other system components to provide a system to a user for learning music.

Abstract: Tone pitch information is extracted from the received input note information. A scale is determined on the basis of retrieved tonality information. A reference scale note is determined on the basis of the extracted tone pitch information and the determined scale. A tone pitch of a harmony note is determined by counting scale notes which form the determined scale from the determined reference scale note until reaching a scale note designated by the retrieved degree information.

Abstract: The method according to the invention includes the creation of a reference multimedia sequence structure, the breaking down of this structure into basic components (tracks P1, P2, Pn) each containing a series of basic subcomponents (bricks B11-Bn4), the association to each one of these basic subcomponents of a plurality of homologous subcomponents (homologous bricks B11 Hi, B21 Hj, B?1 Hk) to each of which are assigned attributes and an automatic composition phase of a new multimedia sequence containing the maintaining of the subcomponents or their replacing with homologous subcomponents chosen algorithmically according to an algorithm determining the probability of the subcomponents of being chosen, considering its attributes, then by performing a random choice in respect of these probabilities.

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.

Abstract: An example graphical programming interface system includes a processor. A grid matrix defined by a plurality of coordinate axes, having selectable matrix positions is displayed on a display device. Multiple movable object icons, each representing an object having a predefined output sound are also displayed on the display device. In one aspect, a single object data file is associated with each matrix position on said grid matrix. In this aspect, once a user places an object icon on a matrix position, the processor causes the predefined output sound associated with the object icon in accordance with the object data file associated with the matrix position at which the object icon is placed, and outputs the processed sound to an output device. This allows a user to program musical sequences by placing one or more object icons each on the selectable matrix positions.

Abstract: CPU 21 decides a current melody tone CM relating to a key depressed at a the leading position of a current beat and a previous melody tone PM relating to a key depressed at the leading position of a beat coming directly before the current beat, based on time information, in particular, beat information, controlling progress of automatic accompanying data in operation in a melody sequence progressing in response to manipulation of a keyboard 11. Further, CPU 21 performs a chord name deciding process to decide a current chord name, based on the decided current melody tone, previous melody tone, and a previous chord name PreCH, or a chord name at the previous beat. When deciding a melody tone, CPU 21 decides the current melody tone CM and the previous melody tone PM based on what number the current beat is in a measure.

Abstract: A plurality of musical instrument is connected to a server device through a network to form a storage system. The musical instrument generates performance data, and sends the performance data to the server device every time the performance data is generated. The server device receives the performance data sent from the musical instrument. The server device has a clock unit that measures date and time, and a storage unit that stores the performance data received by the receiving unit. Further, a file generation unit of the server device divides a polarity of the performance data stored in the storage unit into blocks based on the date and time of the performance data measured by the clock unit when the performance data is received by the receiving unit, and generates performance files corresponding to the blocks of the performance data.

Abstract: Processor-implemented methods and systems for polyphonic note detection are disclosed. The method includes converting a portion of a polyphonic audio signal from a time domain to a frequency domain. The method includes detecting a fundamental frequency peak in the frequency domain. The method then detects a defined number of integer-interval harmonic partials. If a defined number of integer-interval harmonic partials relative to the fundamental frequency peak are detected the fundamental frequency is recorded as a detected note. This process is repeated for each fundamental frequency until each note in the polyphonic audio signal has been detected. For example, this method allows detection of each note in a strummed guitar chord to provide feedback on the tuning of each string in a strummed chord or allows detection and feedback of the timing and pitch errors for guitar chords played along with a reference track.

Abstract: A spectrum modifying method and the like wherein the efficiencies of the signal estimation and prediction can be improved and the spectrum can be more efficiently encoded. According to this method, the pitch period is calculated from an original signal, which serves as a reference signal, and then a basic pitch frequency (f0) is calculated. Thereafter, the spectrum of a target signal, which is a target of spectrum modification, is divided into a plurality of partitions. It is specified here that the width of each partition be the basic pitch frequency. Then, the spectra of bands are interleaved such that a plurality of peaks having similar amplitudes are unified into a group. The basic pitch frequency is used as an interleave pitch.

Abstract: A method of teaching reading includes displaying, by an application executing on a computing device, a singing exercise configured to allow a user to sing along as a song is played. Lyrics of the song are displayed as the song plays, thus allowing the user to read the lyrics as the user sings along to the song. An audio input is monitored as the song is played. A score representing how accurately the audio input matches the song is calculated. The score is provided to the user. A series of target pitch lines representative of target pitches on the display and a target pitch area encompassed about each target pitch line may be displayed. A pitch tracking line from the audio input may be computed and displayed.

Abstract: Systems, methods, and computer program products are provided for producing audio and/or visual effects according to a correlation between reference data and estimated note data derived from an input acoustic audio waveform. Some embodiments calculate a pitch score as a function of a pitch estimate derived from the input waveform, a reference pitch, and a real-time-adjustable pitch gating window. Other embodiments calculate the pitch score as a function of pitch and timing estimates derived from the input waveform, reference pitch and note timing data, an adjustable rhythm gating window, and an adjustable pitch gating window. The audio and/or visual effects are produced according to the pitch score, and may be used to generate outputs (e.g., in real time) for affecting a live performance, an audio mix, a video gaming environment, an educational feedback environment, etc.

Abstract: An input sequence of musical notes is converted to a melodic contour by detecting note interval changes, e.g., in semitones, between consecutive musical notes in the sequence and mapping the detected note interval changes to corresponding change codes in a defined set of change codes, which have non-uniform step sizes for quantizing note interval changes. Correspondingly, a system, such as a local and/or a remote computer system system (e.g., a web-based melody search server) compares input melodic contours with a database of stored melodic contours to determine matching information, which can be provided to the users that generated the input sequences of musical notes. The system may be configured to search computer networks to identify audio files for representation in the database of stored melodic contours. Further, an embodiment provides for a graphical keyboard for entry of musical note sequences and/or provides for receiving such sequences through a MIDI port.

Abstract: A method for use with a musical instrument includes receiving a signal representative of a sound produced by the musical instrument, receiving a selection of an audio effect from a wireless controller, applying the audio effect to the signal representative of a sound produced by the musical instrument, and providing an output signal representative of the audio effect applied to the sound produced by the musical instrument. Other methods include causing an image to be responsive to a signal representative of motions of the musical instrument, and causing an image to be responsive to a signal representative of sound produced by the musical instrument. A computer readable storage medium may store a computer program adapted to cause a processor based system to execute the steps of any one or more of these methods.

Abstract: A morphed musical piece generation system that enables even a user with little knowledge of music to easily generate a morphed musical piece between two different musical pieces is provided. A first intermediate time-span tree data generation section 6 selectively removes difference information between common time-span tree data and first time-span tree data from the first time-span tree data. Also, a second intermediate time-span tree data generation section 7 performs the same operation to obtain second intermediate time-span tree data. A data combining section combines the first intermediate time-span tree data and the second intermediate time-span tree data to generate combined time-span tree data. A musical piece data generation section generates a morphed musical piece on the basis of the combined time-span tree data.