Yamaha Corporation

Haruki Uehara

Shinya Koseki

Fukutaro Okuyama

Kenji Matahira

Nobuo Sugiyama

Taro Yokoyama

Jun Ishii

Ryutaro Niiho

Shigeru Muramatsu

Yuji Fujiwara

Yutaka Hasegawa

Akihiko Suyama

Akira Maezawa

Kiyoshi Kawamura

Yasuhiko Oba

Jun Yamamoto

Katsuaki Tanaka

Yoshihiro Shiiya

Yoshiki Kasahara

Shigeki Kawai

A keyboard device includes a plurality of keys, and a keyboard driver configured to drive at least a part of the plurality of keys. The keyboard device is configured such that, in accordance with determination whether a key corresponding to a pitch of event data is drivable by the keyboard driver, sound is generated based on a first sound-generating process in which the keyboard driver is configured to drive the key corresponding to the pitch or a second sound-generating process that is different from the first sound-generating process.

Keyboard device and sound generation control method

A keyboard device includes a plurality of keys, and a keyboard driver configured to drive at least a part of the plurality of keys. The keyboard device is configured such that sound is generated based on a first sound-generating process in which the keyboard driver is configured to drive a key corresponding to a first pitch, upon receiving performance data including the first pitch. The keyboard device is configured such that sound is generated based on a second sound-generating process that is different from the first sound-generating process, upon receiving performance data including a second pitch that is different from the first pitch.

A recording method acquires, from a first musical instrument which outputs playing data which represents playing information, playing data of playing by the first musical instrument; generates a first waveform signal according to the played sounds of the first musical instrument which correspond to the playing data; generates a second waveform signal according to a sound including a sound emitted from the first musical instrument and other sounds; generates a third waveform signal wherein the first waveform signal is subtracted from the second waveform signal; generates audio data from the third waveform signal; and records the audio data.

Recording method and recording device that uses multiple waveform signal sources to record a musical instrument

A musical-performance-information transmission method using a first instrument and a second instrument, wherein the first instrument produces sounds in accordance with a user's musical performance and generates musical-performance data in accordance with the produced sounds and the second instrument produces sounds by receiving the musical performance data via a communication means. In the musical-performance-information transmission method, a mixed-sound signal is generated in accordance with a mixture of sounds produced by the first instrument and sounds that are different from the sounds produced by the first instrument, a reference signal is generated in accordance with the sounds produced by the first instrument, and on the basis of the mixed-sound signal and the reference signal, the reference signal is removed from the mixed-sound signal, generating a separated signal, and sound is emitted on the basis of said separated signal.

Musical-performance-information transmission method and musical-performance-information transmission system

An acoustic system includes a supply device, which is connected to a network and configured to supply an acoustic signal to the network, and at least one output device configured to output a sound based on the acoustic signal supplied from the supply device via the network. Also, the acoustic system includes a control unit, which is provided to the at least one output device on a one-to-one basis, and configured to control necessity/non-necessity of outputting the acoustic signal to an associated one of the at least one output device, based on frequency characteristics of the acoustic signal.

Acoustic system, output device, and acoustic system control method

A performance information output control apparatus includes a detection part which detects a plurality of positions of a music performance interface during a single stroke with respect to an operator of a keyboard instrument, the music performance interface including a mechanism that interlocks with the operator, an estimated music-sound generation time analysis part which calculates an estimated music-sound generation time point representing a time point at which music sound according to the single stroke with respect to the operator is estimated to be generated, based on a detection result of the positions of the music performance interface by the detection part, and a music performance information output part which outputs, when the detection result by the detection part is obtained, music performance information representing music performance contents corresponding to the single stroke with respect to the operator prior to the calculated estimated music-sound generation time point.

Performance information output control apparatus, keyboard instrument and control method thereof

An automatic performance device includes a performance data receiving unit that receives performance data transmitted from a storage device without passing through a moving image distribution server, the storage device configured to store the performance data having a combination of performance information and time information, the time information indicating the time when the performance indicated by the performance information was carried out; a synchronization signal receiving unit that receives a synchronization signal by using an audio signal transmission path for an audio via the moving image distribution server; and a reproducing unit that reproduces the performance information of the performance data in synchronization with a video distributed at the time when the synchronization signal is distributed, at the timing corresponding to the time indicated by the time information and the time indicated by the synchronization signal.

Automatic performance device

A performance system includes a plurality of performance information output devices, a storage device, and a plurality of automatic performance devices. At least one performance information output device transmits performance data having the combination of an identifier, time information, and the performance information to at least one automatic performance device through the storage device without passing through a video distribution server. The at least one performance information output device transmits a synchronization signal to the at least one automatic performance device through the video distribution server. The at least one automatic performance device reproduces the performance information in synchronization with a video distributed at the time when the synchronization signal is distributed, at the timing corresponding to the time indicated by the time information and the time indicated by the synchronization signal.

Performance system

A music station is connected through a communication network to another music station, and pieces of music data expressing an exhibition performance on a automatic player piano and pieces of voice data expressing tutor's explanation are transmitted from the music station to the other music station through different communication channels; and a close-talking microphone and a bone conduction microphone are incorporated in a sound collector on the music station, and a vibration signal from the bone conduction microphone is examined to see whether or not the cord of tutor vibrates; when the answer is given affirmative, a voice signal from the close-talking microphone is relayed to a transmitter module so that the sound collector does not permit the transmitter module to transmit the voice signal expressing noises such as the tones; whereby the music performance system prevents the trainee from tones reproduced from a headphone.

Sound collector, sound signal transmitter and music performance system for remote players

A multimedia platform records a performance on a keyboard synchronously with a picture by periodically regulating an internal clock, which is indicative of the lapse of time, with time codes inserted into the set of video data codes representative of the picture, and reproduces the performance through an automatic player piano also synchronously with the picture by periodically regulating the internal clock with the time codes, whereby the user enjoys himself or herself in the performance as if he or she feels himself or herself performing in a convert hall.

Multimedia platform for recording and/or reproducing music synchronously with visual images

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.

Storage system and storage device of music files

An audio player is connected to an automatic playing musical instrument, and command files and audio data files are prepared in the file format defined in the Red Book in the audio player, although the time data are stored in the time data fields of the longitudinal time codes, the user's data fields are available for commands to the automatic player and identification of a music data file; when a user instructs the audio player to control the automatic player for a solo performance, a quasi audio signal is produced from the command data for the solo performance; when a user instructs to a performance in collaboration with the automatic player, the audio signal, which expresses the pieces of audio data and a music data file, is supplied to the automatic player so as to reproduce the music tune through the acoustic tones and electric tones.

Audio system, signal producing apparatus and sound producing apparatus

In order to establish an automatic player piano and a home theater system in synchronization for ensemble, a set of playback pattern data expresses a series of pitch names, and is stored in a memory system independent of an audio data file and a music data file; while an audio signal is being supplied from a playback system to a synchronizer of the automatic player piano, the synchronizer extracts samples from the audio signal, and determines a series of pitch names through an FFT and a quantization; the series of pitch names of the samples is compared with the playback pattern data what part of the playback pattern data expresses the series of pitch name; since the each sample appears over an extremely short time period, the synchronizer accurately determines a lapse of time, and selects a note event data code to be processed from the music data file.

Synchronizer for ensemble on different sorts of music data, automatic player musical instrument and method of synchronization

A music reproducing system includes a musical instrument for reproducing a music tune on the basis of the MIDI music data, a sound reproducer for reproducing a music tune and/or narration from audio data codes and a server computer for distributing programs, MIDI files and audio files to the musical instrument and sound reproducer, and a program contains plural music tunes and narration; while a program is being reproduced in collaboration between the musical instrument and the sound reproducer, the audio data codes are converted to an audio signal expressing the narration through the sound reproducer, and the music tunes are reproduced on the basis of the MIDI files through the musical instrument; and the duration data codes of audio file are supplied to the musical instrument so as to make the musical instrument and the sound reproducer synchronized with each other.

Music reproducing system for collaboration, program reproducer, music data distributor and program producer

A talk assisting system has a vibration sensor for detecting tones produced through a musical instrument and a signal interrupter connected between a microphone and a sound system; while a player is fingering a music tune on the musical instrument, pieces of vibration data express a wide amplitude of the vibrations, and a tone discriminator changes a state signal to an active high level; and the signal interrupter is responsive to the state signal so as to block the sound system from the voice signal, whereby the tones are not mixed with the voice.

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Hamamatsu, Japan

Haruki Uehara