Fundamental Tone Detection Or Extraction Patents (Class 84/616)
  • Patent number: 10303423
    Abstract: Methods and systems including music synthesizers for synchronous sampling of analog signals are disclosed. A music synthesizer can include an adaptive low-pass filter, a synchronous sample clock generator, a digital signal processor, an analog-to-digital converter, and a digital-to-analog converter. The synchronous sample clock generator creates a synchronous sample clock signal using a filtered audio signal, as well as an “up” pulse and a “down” pulse, all of which are utilized by the digital signal processor to perform operations on the audio signal. The digital signal processor generates a clean sample clock for resampling the original audio signal to the synchronous sample clock rate.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: May 28, 2019
    Assignee: Second Sound, LLC
    Inventor: Brian James Kaczynski
  • Patent number: 10283097
    Abstract: In order to help music players without sufficient musical knowledge to adapt original music pieces but still keep the original style, the present invention provides an interactive system and the accompanying method for creating music by substituting audio tracks. The interactive system includes a database of musical elements that comprises tonality, tempo, beat, timbre, texture, chord, and pitch, a database of music that contains multiple original music pieces, and a processor. As a result, players without strong knowledge in music theories can create adapted a music piece that matches the style of the original one.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: May 7, 2019
    Inventors: Zheng Shi, Zhengzheng Pan, Xin Wang
  • Patent number: 10262639
    Abstract: Systems and methods for identifying musical features in audio content are presented. Audio content information may be obtained from a digital audio file, the information providing a duration for playback of the audio content and a representation of sound frequencies associated with various moments throughout the duration of the audio content. Sound frequencies associated with one or more of the moments throughout the duration of the audio content may be identified, and characteristics or patterns of the identified sound frequencies may be recognized as being indicative of one or more musical features (e.g., parts, phrases, hits, bars, onbeats, beats, quavers, semiquavers, etc.). Some implementations of the present technology define display objects for display on a digital display, the display objects provided with visual features in an arrangement that distinguishes one musical feature from another across the duration of the audio content.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: April 16, 2019
    Assignee: GoPro, Inc.
    Inventors: Agnes Girardot, Jean-Baptiste Noel
  • Patent number: 10115381
    Abstract: A device for simulating a sound timbre, particularly for stringed electrical musical instruments, which comprises input elements for acquiring an electrical signal generated by a musical instrument, and filtering elements which operate on the electrical signal generated by a source musical instrument. The filtering elements apply to the electrical signal generated by the source musical instrument a transfer function obtained by correlating the sound profile of a target musical instrument to the sound profile of the source musical instrument, the sound profiles comprising respectively the average frequency spectrum of a range of notes played on the target musical instrument and the average frequency spectrum of a corresponding range of notes played on the source musical instrument. The sound profiles are defined on the basis of the electrical signals generated by the musical instruments, corresponding to the playing of at least one note per string.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: October 30, 2018
    Inventor: Filippo Zanetti
  • Patent number: 10083679
    Abstract: The invention has for object a device for controlling (2) at least one audio or video signal comprising: means for controlling mounted mobile in rotation about an axis of rotation (z) on a base, first means of detecting a displacement in rotation of the means for controlling able to generate a first signal, said first signal supplying means for processing said at least one audio or video signal, with the first means of detecting comprising means for measuring the angle of rotation of the means for controlling, means for displaying and/or light-emitting means, comprising several sources of light forming at least first and second means of graduation. According to the invention, said sources of light of said first and second means of graduation are selectively controlled by said means for processing according to the measurement of the angle of the rotation of said means for controlling.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: September 25, 2018
    Assignee: GUILLEMOT CORPORATION S.A.
    Inventor: Francois Garet
  • Patent number: 9947304
    Abstract: The present disclosure provides a system and method for representing music in a three dimensions using contexts based around tonal centers, to form three dimensional geometric shapes. The musical notation method described herein is easy to understand and visualize. The method is based on three dimensional structures which may represent contexts. The contexts may be formed by combining diminished and augmented scales shown as symmetrical three dimensional geometric shapes. These symmetrical geometric shapes may be formed from a plurality of polygons, which may include polygons comprised of a set of related notes from a diminished or augmented scale, together forming a looped harmonic polygon. Each note in a respective scale is placed at a vertex of a harmonic polygon, wherein the vertices of the harmonic polygons are selected from notes in a twelve note chromatic scale.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: April 17, 2018
    Inventor: Francis Begue
  • Patent number: 9830896
    Abstract: Audio processing method and audio processing apparatus, and training method are described. According to embodiments of the application, an accent identifier is used to identify accent frames from a plurality of audio frames, resulting in an accent sequence comprised of probability scores of accent and/or non-accent decisions with respect to the plurality of audio frames. Then a tempo estimator is used to estimate a tempo sequence of the plurality of audio frames based on the accent sequence. The embodiments can be well adaptive to the change of tempo, and can be further used to tracking beats properly.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: November 28, 2017
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Jun Wang, Lie Lu
  • Patent number: 9691407
    Abstract: A noise reduction apparatus according to the present invention includes: a sudden sound information storage unit that stores an input signal that are input before a current input signal is input as sudden sound information, the input signal having a signal level of voice components equal to or smaller than a predetermined threshold and including a sudden sound to be suppressed; a phase difference calculation unit that calculates a phase difference between the sudden sound information and a sudden sound in the current input signal based on a maximum value of a correlation value between the sudden sound information and the current input signal; an addition signal generation unit that shifts a phase of the sudden sound information based on the phase difference to generate an addition signal; and a sudden sound suppression unit that adds the addition signal and the current input signal to output an output signal.
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: June 27, 2017
    Assignee: JVC KENWOOD CORPORATION
    Inventors: Keisuke Oda, Takaaki Yamabe
  • Patent number: 9294855
    Abstract: An audio signal processing apparatus and method for processing an audio signal are provided. The audio signal processing apparatus includes a signal detector configured to detect a long-term envelope and a short-term envelope of a lower range signal of an input signal, and a controller configured to control a gain in a beat section of the input signal, wherein the beat section is determined based on the detected long-term envelope and the short-term envelope of the lower range signal.
    Type: Grant
    Filed: January 2, 2014
    Date of Patent: March 22, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong-woo Kim, Jong-kyu Lee, Byung-soo Kim, Kee-yeong Cho
  • Patent number: 9263060
    Abstract: A system for classification of the emotional content of music is provided. An encoder receives a digital audio recording of a piece of music, and encodes it using musical notes and associated amplitudes. The artificial neural network is configured to take a plurality of encoded time slices and provide output indicative of the emotional content of the music.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: February 16, 2016
    Assignee: MARIAN MASON PUBLISHING COMPANY, LLC
    Inventor: David A. Sharp
  • Patent number: 9261548
    Abstract: A hum noise detection device includes: a frequency conversion unit (1) configured to perform a frequency converting process at a constant time interval on an input signal, and converting the input signal into a frequency signal; a peak frequency calculation unit (2) configured to calculate a stationary peak frequency based on the frequency signal; a fundamental frequency estimation unit (3) configured to estimate a fundamental frequency of hum noise based on the stationary peak frequency; and a hum noise judgment unit (4) configured to judge whether or not there is hum noise in the input signal based on the estimated fundamental frequency and the stationary peak frequency.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: February 16, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Masakiyo Tanaka, Shusaku Ito
  • Patent number: 9122753
    Abstract: An electronic apparatus and method for retrieving a song, and a storage medium. The electronic apparatus includes: a storage unit which stores a plurality of songs; a user input unit which receives a hummed query which is inputted for retrieving a song; and a song retrieving unit which retrieves a song based on the hummed query from among the plurality of stored songs when the hummed query is received. The song retrieving unit extracts a pitch and a duration of the hummed query, converts each of the extracted pitch and duration into multi-level symbols, calculates a string edit distance between the hummed query and one of the plurality of songs based on the symbols, and determines a similarity between the hummed query and a song based on edit operations which are performed within the calculated string edit distance.
    Type: Grant
    Filed: April 11, 2012
    Date of Patent: September 1, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: A. Srinivas, P. Krishnamoorthy, Rajen Bhatt, Sarvesh Kumar
  • Patent number: 9040805
    Abstract: An information processing apparatus is provided which includes a music analysis unit for analyzing an audio signal serving as a capture source for a sound material and for detecting beat positions of the audio signal and a presence probability of each instrument sound in the audio signal, and a capture range determination unit for determining a capture range for the sound material by using the beat positions and the presence probability of each instrument sound detected by the music analysis unit.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: May 26, 2015
    Assignee: Sony Corporation
    Inventor: Yoshiyuki Kobayashi
  • Patent number: 9024169
    Abstract: A music analysis apparatus has a feature extractor and an analysis processor. The feature extractor generates a time series of feature values from a sequence of notes which is designated as an object of analysis. The analysis processor computes an evaluation index value which indicates a probability that the designated sequence of notes is present in each of a plurality of reference music pieces by applying a probabilistic model to the time series of the feature values generated from the designated sequence of notes. The probabilistic model is generated by machine learning of the plurality of reference music pieces using time series of feature values obtained from the reference music pieces.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: May 5, 2015
    Assignee: Yamaha Corporation
    Inventors: Kouhei Sumi, Takuya Fujishima, Takeshi Kikuchi
  • Patent number: 9012755
    Abstract: Provided are a method and apparatus for generating and storing a database that may be searched for music upon a user's request, and a method and apparatus for searching for music corresponding to the user's request. According to an embodiment of the present invention, a plurality of melodies are divided based on phrase breaks and are stored, and a number of melodies which are similar to the user's request are detected from the stored melodies.
    Type: Grant
    Filed: April 15, 2008
    Date of Patent: April 21, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ki-wan Eom, Jae-won Lee, Jung-eun Kim, Jing Deng
  • Patent number: 8901407
    Abstract: An index calculating unit calculates a tonality index of a signal component of each area of an input signal transformed into a time frequency domain based on intensity (for example, power spectrum) of the signal component and a function (quadratic function) obtained by approximating the intensity of the signal component. A music determining unit determines whether or not each area of the input signal includes music based on the tonality index. The present technology can be applied to a music section detecting apparatus that detects a music part from an input signal in which music is mixed with noise.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: December 2, 2014
    Assignee: Sony Corporation
    Inventors: Keisuke Touyama, Mototsugu Abe
  • Patent number: 8889976
    Abstract: A musical score position estimating device includes an audio signal acquiring unit, a musical score information acquiring unit acquiring musical score information corresponding to an audio signal acquired by the audio signal acquiring unit, an audio signal feature extracting unit extracting a feature amount of the audio signal, a musical score feature extracting unit extracting a feature amount of the musical score information, a beat position estimating unit estimating a beat position of the audio signal, and a matching unit matching the feature amount of the audio signal with the feature amount of the musical score information using the estimated beat position to estimate a position of a portion in the musical score information corresponding to the audio signal.
    Type: Grant
    Filed: August 6, 2010
    Date of Patent: November 18, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Kazuhiro Nakadai, Takuma Otsuka, Hiroshi Okuno
  • Patent number: 8885841
    Abstract: An audio processing apparatus includes an audio signal acquisition unit which acquires an audio signal of a musical piece, a feature value extraction unit which extracts a predetermined type of feature value from the audio signal acquired by the audio signal acquisition unit in time series, a change point detection unit which detects a change point in which the amount of change of the feature value extracted in time series by the feature value extraction unit is changed to be greater than a predetermined threshold value, a hook analysis unit which analyzes a hook place of the audio signal based on the feature value extracted by the feature value extraction unit in block units with the change point detected by the change point detection unit as a boundary, and a hook information output unit which outputs the hook place analyzed by the hook analysis unit as hook information.
    Type: Grant
    Filed: October 11, 2011
    Date of Patent: November 11, 2014
    Assignee: Sony Corporation
    Inventors: Manabu Uchino, Shusuke Takahashi, Akira Inoue
  • Patent number: 8884149
    Abstract: Systems and method for performing adaptive audio signal processing using music as a measurement stimulus signal. A musical stimuli generator may be used to generate musical stimulus signals composed to provide a stimulus with a spectrum that is substantially dense, and ideally white or pink, over a selected frequency range, so that all frequencies of interest are stimulated. The musical stimuli generator may generate melodically pleasing musical stimulus signals using music clips that include any of: a chromatic sequence, a chromatic sequence including chromatic tones over a plurality of octaves, a chromatic sequence including chromatic tones over a selected plurality of octaves, or an algorithmically composed chromatic sequence, to cover a selected frequency range. The musical stimulus signal may be generated as sound into the environment of use. An audio input picks up the sound from the environment, and a sound processor uses the received musical stimulus signal to determine a transfer function.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: November 11, 2014
    Assignee: Harman International Industries, Incorporated
    Inventors: James Kirsch, Harsha Inna Kedage Rao
  • Patent number: 8878045
    Abstract: An acoustic effect impartment apparatus detects striking of any one of strings by a corresponding hammer in an acoustic piano like a grand piano, and vibrates a vibration section with a driving waveform signal obtained by synthesizing sine wave signals of the fundamental frequency and harmonic frequency of the hammer-struck string. Such vibration of the vibration section is transmitted to the keys via a soundboard and bridge of the piano. Thus, vibration is excited in the hammer-struck string by the striking with the hammer but also by the driving waveform signal, so that an acoustic effect corresponding to the driving waveform signal is imparted. Because the driving waveform signal is a simple signal using the sine wave signals corresponding to the fundamental frequency of the string, a natural feeling of the acoustic piano will not be lost even when the acoustic effect is imparted.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: November 4, 2014
    Assignee: Yamaha Corporation
    Inventors: Shinya Koseki, Fukutaro Okuyama
  • Patent number: 8865993
    Abstract: A musical composition processing system may include a storage device for storing reference musical compositions, an energy level characteristic value for each reference musical composition, and an attribute profile for each reference musical composition, and a computing device in communication with the storage device and for processing an input musical composition. The processing of the input musical composition may include determining an attribute profile for the input musical composition based upon transient and ambient sounds in the input musical composition, and determining an energy level characteristic data value for the input musical composition by correlating the attribute profile of the input musical composition to the respective attribute profiles and the energy level characteristic data values of the reference musical compositions.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: October 21, 2014
    Assignee: Mixed In Key LLC
    Inventors: Yakov Vorobyev, Martin Douglas
  • Patent number: 8859876
    Abstract: Multi-channel audio signal processing systems and techniques are provided for electronic instruments having multiple and distinct output channels. Such systems may be used in conjunction with instruments comprising multiple vibrating elements, each with a dedicated signal output. Each received audio signal channel may be directed to a dedicated or shared signal processor for variably changing selected attributes of pitch, timing, timbre, and amplitude in ways that are unique for each signal. Signal processors may be shared using an allocating mixer, allocating switch, or both. An output mixer may be used to mix signal processor output signals into one or more outgoing mixed audio signals. Signal processors, mixers, and switches may be configured by stored program control and controlled in real-time. Real-time pitch variations can be used to change the pitch organization of fixed-pitch vibrating elements within an electronic musical instrument.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: October 14, 2014
    Inventor: Lester F. Ludwig
  • Patent number: 8859874
    Abstract: In a coefficient measurement apparatus, a line input terminal receives a pickup signal that is generated based on a string vibration of a musical instrument. A microphone input terminal receives a microphone signal acquired by a microphone that collects sounds of the musical instrument. An adaptive filter estimates a transfer function associated to resonance of the musical instrument and a transfer function of an acoustic space formed from the musical instrument to the microphone, generates an output signal by processing the pickup signal using the estimated transfer function, and updates the transfer function using a difference between the output signal and the microphone signal as a reference signal.
    Type: Grant
    Filed: January 7, 2009
    Date of Patent: October 14, 2014
    Assignee: Yamaha Corporation
    Inventor: Ryuichiro Kuroki
  • Patent number: 8847056
    Abstract: Systems, including methods and apparatus, for generating audio effects based on accompaniment audio produced by live or pre-recorded accompaniment instruments, in combination with melody audio produced by a singer. Audible broadcast of the accompaniment audio may be delayed by a predetermined time, such as the time required to determine chord information contained in the accompaniment signal. As a result, audio effects that require the chord information may be substantially synchronized with the audible broadcast of the accompaniment audio. The present teachings may be especially suitable for use in karaoke systems, to correct and add sound effects to a singer's voice that sings along with a pre-recorded accompaniment track.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: September 30, 2014
    Assignee: Sing Trix LLC
    Inventors: David Kenneth Hilderman, John Devecka
  • Patent number: 8809663
    Abstract: A method and system for generating a synthetic simulation of a media recording is disclosed. One embodiment accesses a sound reference archive and heuristically creates a new sound that is matched against at least one sound in the sound reference archive. The media recording is analyzed and a synthetic sound based on the analyzing of the media recording is generated.
    Type: Grant
    Filed: January 6, 2012
    Date of Patent: August 19, 2014
    Inventor: Hank Risan
  • Patent number: 8796530
    Abstract: The musical instrument has a acoustic transducer, which transforms an excitation signal generated by at least one resonator into an acoustic signal. The acoustic transducer is provided with an adjustable oscillation profile, in which at least one profile parameter is defined by a reference profile of a reference instrument.
    Type: Grant
    Filed: July 27, 2007
    Date of Patent: August 5, 2014
    Inventor: Christoph Kemper
  • Patent number: 8779271
    Abstract: There is provided a tonal component detection method including performing a time-frequency transformation on an input time signal to obtain a time-frequency distribution, detecting a peak in a frequency direction at a time frame of the time-frequency distribution, fitting a tone model in a neighboring region of the detected peak, and obtaining a score indicating tonal component likeness of the detected peak based on a result obtained by the fitting.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: July 15, 2014
    Assignee: Sony Corporation
    Inventors: Mototsugu Abe, Masayuki Nishiguchi
  • Patent number: 8735709
    Abstract: A lead tone is generated on the basis of an input tone signal. Meanwhile, a specific pitch of the input tone signal is sequentially detected, from which is detected a normalized pitch corresponding to any one of the musical pitch names. Then, difference information is obtained which pertains to a difference between the specific pitch and the normalized pitch, and a pitch having a given pitch interval from the normalized pitch is determined as a target pitch of a tone signal to be generated. Then, a harmony tone is generated which has a pitch obtained by modulating the target pitch in accordance with the difference information.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: May 27, 2014
    Assignee: Yamaha Corporation
    Inventors: Akira Yamauchi, Hikaru Kase, Motoaki Takashima
  • Publication number: 20140123836
    Abstract: A musical composition processing system may include a storage device for storing reference musical compositions, an energy level characteristic value for each reference musical composition, and an attribute profile for each reference musical composition, and a computing device in communication with the storage device and for processing an input musical composition. The processing of the input musical composition may include determining an attribute profile for the input musical composition based upon transient and ambient sounds in the input musical composition, and determining an energy level characteristic data value for the input musical composition by correlating the attribute profile of the input musical composition to the respective attribute profiles and the energy level characteristic data values of the reference musical compositions.
    Type: Application
    Filed: February 22, 2013
    Publication date: May 8, 2014
    Inventors: Yakov VOROBYEV, Martin Douglas
  • Patent number: 8716584
    Abstract: A method, apparatus and system to enable a user to find and act-upon an audio-containing composition in a group of compositions. A sound-segment (recognition-segment) intended to prompt a user's memory, may be associated with each composition in a group of compositions. A recognition-segment may contain one or more highly recognizable portion(s) of a composition. When the user is trying to locate or select a particular composition, the recognition-segments are navigated and played-back to the user, based upon a user-device context/mode. When a user recognizes the desired composition from its recognition-segment, the user may initiate a control action to playback; arrange; and/or act-upon, the composition that is associated with the currently playing recognition-segment.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: May 6, 2014
    Inventor: James W. Wieder
  • Patent number: 8704070
    Abstract: The present invention relates generally to a method and system for defining a reference sound position and producing an indicia proximate thereto in relation to one or more sound characteristics. The present invention, in one or more embodiments, provides for displaying a holographic image at a reference sound location which is determined in relation to the identification of one or more target sounds being associated with one or more identified sound characteristics. In other embodiments, the present invention provides for an indicia to appear to be interactive with a reference sound location and may be used in a variety of environments including but not limited to rock theatrics, homeland security and residential security.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: April 22, 2014
    Inventor: John Beaty
  • Patent number: 8697973
    Abstract: A music touch control system for an audio performance product is disclosed. The system includes a touch control surface configured and arranged to set and cause activation for playing a tone in an audio performance product; and a visual indicator connected to the touch control surface representing semitones of the tone. The visual indicator has a neutral tone point with +12 semitones above the neutral tone point and ?12 semitones below the neutral point. Touching the control surface along the length thereof causes the audio performance product to play the semitone corresponding to the portion of the touch control surface touched and the visual indicator to indicate the semitone of the selected semitone. The system can be used to represent the playing time of a song and permit navigation instantly to a point in the song.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: April 15, 2014
    Assignee: inMusic Brands, Inc.
    Inventors: John A. Souppa, Glen Darcey
  • Patent number: 8686274
    Abstract: A pitch shift device provides pitch-shifted sounds based on performance sounds generated by an electronic string musical instrument. The pitch shift device has a device that detects vibrato. When vibrato is detected, an interpolation device of a pitch shift control device performs a control of interpolating for a pitch shift change in the musical sound signal accompanying a change in pitch shift information stored in a pitch information storage device and read out by a pitch shift readout device from a group of pitch shift information. Therefore, unnatural pitch changes in pitch-shifted sound can be suppressed.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: April 1, 2014
    Assignee: Roland Corporation
    Inventors: Yasuhiro Fukuda, Shoichi Ikeda
  • Patent number: 8664501
    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.
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: March 4, 2014
    Assignee: JCT Products, LLC
    Inventors: Jack J. R. Miele, Chad D. Gilmore
  • Patent number: 8653352
    Abstract: From analog music information in which the sounds of a plurality of musical instruments are mixed, sound data corresponding to the register of the reproduced sound of a bass guitar and sound data corresponding to the register of the reproduced sound of a drum are extracted using a band-pass filter. A drive pulse with a low frequency is generated within the periods of data sections in which the former sound data reaches a predetermined level or higher, and a drive pulse with a high frequency is generated within the periods of data sections in which the latter sound data reaches a predetermined level or higher. A vibrating body in a vibration mechanism unit is resonated by two drive pulses with frequencies, thereby causing vibration according to the reproduced sound of music.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: February 18, 2014
    Assignee: Alps Electric Co., Ltd.
    Inventor: Tomokuni Wauke
  • Patent number: 8642874
    Abstract: A resonance tuner receives and digitizes an analog signal in response to a resonance of a structure thereby creating a plurality of time samples. A series of the time samples are buffered upon burst detection. A power spectrum is estimated by computing a Time-To-Frequency-Transform of the series of time samples and a magnitude of each of the resulting frequency samples is squared. At least one subset associated with at least one spectral peak is selected from the frequency samples. Each spectral peak has at least one sample with a sufficient magnitude and being spectrally adjacent to any other sample in another spectral peak by less than a threshold. A fundamental spectral peak is determined in a fundamental subset including a spectral peak with a sample at the lowest frequency greater than zero. The fundamental spectral peak has the sample with the largest magnitude within the fundamental subset.
    Type: Grant
    Filed: January 11, 2011
    Date of Patent: February 4, 2014
    Assignee: Overtone Labs, Inc.
    Inventor: David Byrd Ribner
  • Patent number: 8634759
    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.
    Type: Grant
    Filed: July 9, 2004
    Date of Patent: January 21, 2014
    Assignee: Sony Computer Entertainment Europe Limited
    Inventors: Richard Eliot Bates, Paulina Bozek
  • Patent number: 8600065
    Abstract: Sound data acquisition means acquires, from a sound input device, sound data representing a sound signal. First evaluation means evaluates the sound signal represented by the sound data, by using a first criterion for detecting whether or not the sound inputted into the sound input device is a breath. Second evaluation means evaluates the sound signal represented by the sound data, by using a second criterion which is different from the first criterion.
    Type: Grant
    Filed: December 30, 2009
    Date of Patent: December 3, 2013
    Assignee: Nintendo Co., Ltd.
    Inventors: Yoichi Yamada, Junya Osada, Arisa Hosaka
  • Patent number: 8592670
    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.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: November 26, 2013
    Assignee: Apple Inc.
    Inventors: Steffen Gehring, Markus Sapp, Pierre Fournier
  • Patent number: 8581087
    Abstract: Detection is made of a physical amount caused by operation performed on a mouthpiece with a human player's mouth, and a tone pitch corresponding to the detected physical amount is identified by referencing a memory storing information defining relationship between various ranges of the physical amount and tone pitches. Expected tone generating style is notified to the player based on the identified tone pitch. The memory contains a pitch table defining relationship between various ranges of the physical amount and tone pitches, and a gain table defining gain information corresponding to deviations of the physical amount from a predetermined reference point for each tone pitch and within the range of the physical amount corresponding to the tone pitch. For the detected physical amount, a tone pitch and gain information are identified by referencing the pitch gain tables, so that the identified tone pitch and gain information is notified.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: November 12, 2013
    Assignee: Yamaha Corporation
    Inventor: Ryuji Hashimoto
  • Patent number: 8571233
    Abstract: A coefficient calculation unit calculates a coefficient (p) according to input signals (x[n]). A balance setting unit decides, according to this coefficient (p), a coefficient used to control the level of a signal in a digital level correction unit and a coefficient used to adjust the characteristics of a signal in a characteristic correction unit, thus allowing the digital level correction unit and characteristic correction unit to execute adaptive processing.
    Type: Grant
    Filed: September 17, 2009
    Date of Patent: October 29, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Yusaku Kikugawa
  • Patent number: 8513513
    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.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: August 20, 2013
    Assignee: Yamaha Corporation
    Inventor: Takeshi Komano
  • Publication number: 20130205978
    Abstract: Provided is an electronic stringed instrument comprising: a pickup that detects vibration of a string; a feedback operator used to select a level of feedback effect; a feedback control device that controls to add a feedback effect to a tone signal based on the vibration of the string detected by the string vibration detection device and based on the selected level of feedback effect from the feedback operator; and an output device that outputs the tone signal to which the feedback effect is added by the feedback control device.
    Type: Application
    Filed: January 18, 2013
    Publication date: August 15, 2013
    Applicant: ROLAND CORPORATION
    Inventor: ROLAND CORPORATION
  • Patent number: 8509692
    Abstract: Disclosed is a system and method for the real-time wireless transmission of a digital audio signal and control data. A transmitter may be coupled to an audio source. The transmitter includes a processor to combine control data with a digital audio signal from the audio source and the processor wirelessly transmits the combined control data and digital audio signal to a receiver. The receiver includes a processor that is used to receive the combined control data and digital audio signal and to process the control data to perform a user pre-defined function.
    Type: Grant
    Filed: April 13, 2009
    Date of Patent: August 13, 2013
    Assignee: Line 6, Inc.
    Inventors: Marcus Ryle, Guy Coker
  • Patent number: 8502060
    Abstract: Provided are systems and methods for resonance tuning. A signal is received in response to a resonance of a structure. A frequency or musical note related to an overtone is determined from the signal. The frequency or musical note related to the overtone is selected as a filter mode reference frequency or musical note. A display of frequencies or musical notes from a subsequent signal that deviate from the filter mode reference frequency or musical note by a predetermined threshold is suppressed.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: August 6, 2013
    Assignee: Overtone Labs, Inc.
    Inventor: David Byrd Ribner
  • Patent number: 8494842
    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.
    Type: Grant
    Filed: November 3, 2008
    Date of Patent: July 23, 2013
    Assignee: Soundhound, Inc.
    Inventors: Aaron Master, Seyed Majid Emami
  • Patent number: 8476518
    Abstract: A method includes receiving an audio signal and identifying one or more steady-state segments of the audio signal. The method also includes identifying at least one portion of the one or more segments that contains a specified frequency. Further, the method includes generating a wavetable using the at least one identified portion of the one or more segments. In addition, the method could include synthesizing an output audio signal using the wavetable. The output audio signal could represent a ringtone in a mobile telephone.
    Type: Grant
    Filed: November 30, 2004
    Date of Patent: July 2, 2013
    Assignee: STMicroelectronics Asia Pacific Pte. Ltd.
    Inventors: Kabi P. Padhi, Jianhua Sun
  • Patent number: 8473283
    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.
    Type: Grant
    Filed: November 3, 2008
    Date of Patent: June 25, 2013
    Assignee: Soundhound, Inc.
    Inventors: Aaron Master, Seyed Majid Emami
  • Patent number: 8471135
    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.
    Type: Grant
    Filed: August 20, 2012
    Date of Patent: June 25, 2013
    Assignee: Museami, Inc.
    Inventors: Robert D. Taub, J. Alexander Cabanilla
  • Publication number: 20130152767
    Abstract: A method of suggesting pitched musical events corresponding to provided digital musical content, comprising obtaining a frequency domain representation of the digital musical content, applying a pitch salience estimation over the frequency domain representation to provide a pitch salience time-frequency map; and grouping local frequency peaks along a time axis of the pitch salience time-frequency map which are substantially continuous in terms frequency and/or salience giving rise to a partial.
    Type: Application
    Filed: April 14, 2011
    Publication date: June 20, 2013
    Applicant: JAMRT LTD
    Inventors: Itamar Katz, Yoram Avidan, Sharon Carmel