Abstract: A sound processing method includes: receiving, using the communication device, from the remote apparatus, a first sound signal representing first sound generated by a user of the remote apparatus; emitting, using the sound emitting apparatus, the first sound represented by the first sound signal; receiving, using the sound receiving apparatus, sound that includes second sound generated by a user of the sound processing system; generating a second sound signal by sound processing, using processing parameters, a reception sound signal generated by the sound receiving apparatus; transmitting, using the communication device, the second sound signal to the remote apparatus; updating the processing parameters based on the first sound signal or the reception sound signal; and stopping the updating of the processing parameters in a state where musical sound is included in at least one of the first sound or the second sound.

Abstract: A computer-implemented information processing method includes: determining, based on musical instrument information indicative of a musical instrument, a target part of a body of a first player, the first player playing the musical instrument indicated by the musical instrument information; and acquiring image information indicative of imagery of the determined target part.

Abstract: A computer-implemented reproduction control method includes reproducing sound from sound data representing a series of sounds including first sound and second sound that follows the first sound. The method includes starting reproducing the first sound, continuing the reproduction of a first sound until an end of the first sound in response to receiving a first instruction in a reproduction period of the first sound, stopping the reproduction of the first sound, and after the stopping of the reproduction of the first sound, starting reproducing the second sound in response to receiving a second instruction provided by a user.

Abstract: A vibration detection mechanism includes: a first sensor section that detects vibration of a vibrating member of a musical instrument in a first direction being a main vibration direction; a second sensor section that detects vibration of the vibrating member in a second direction being approximately perpendicular to the first direction; and a third sensor section that detects vibration of the vibrating member in a third direction being approximately perpendicular to both the first direction and the second direction. Sensitivity of the second sensor section is greater than sensitivity of the first sensor section. Sensitivity of the third sensor section is greater than the sensitivity of the first sensor section.

Abstract: A vibration detection mechanism includes: a first sensor section that detects vibration of a vibrating member of a musical instrument in a first direction being a main vibration direction; a second sensor section that detects vibration of the vibrating member in a second direction being approximately perpendicular to the first direction; and a third sensor section that detects vibration of the vibrating member in a third direction being approximately perpendicular to both the first direction and the second direction. Sensitivity of the second sensor section is greater than sensitivity of the first sensor section. Sensitivity of the third sensor section is greater than the sensitivity of the first sensor section.

Abstract: In a musical instrument, such as a piano, having a sound board, the sound board vibrates in response to vibrations of a string responsive to depression of a key. A waveform corresponding to such vibrations of the sound board is detected and recorded into a memory for each of the keys. The recorded vibration waveform is usable for reproduction of a sound based on sound board vibrations. In a sound reproduction apparatus, such as a piano, having a sound board, an excitation device physically excitable in response to an input waveform is provided on the sound board. In response to an operation of a key, a sound board vibration waveform corresponding to the operated key is read out from the memory, and the excitation device is driven in accordance with the read-out waveform signal so that the sound board is vibrated.

Abstract: A modulation device includes: a spread code generation unit which generates a spread code having a predetermined cycle; an audio signal input unit to which an audio signal is input; a first modulation unit which phase-modulates the spread code in each cycle on the basis of a data code; and a combining unit which combines the audio signal with a modulation signal which has been generated on the basis of the phase-modulated spread code and distributed in a frequency range higher than a predetermined frequency to output a combined signal.

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.

Abstract: Watermark information indicative of content of music piece performance data to be reproduced in synchronism with a first audio signal is embedded into the first audio signal, and the resultant signal is acquired as a second audio signal. In parallel to the above-mentioned processing, the watermark information is decoded from the second audio signal, the content of music piece performance data to be reproduced is identified on the basis of the decoded watermark information, and then a tone signal based on the music piece performance data is reproduced in accordance with the identified content.

Abstract: In a musical instrument, such as a piano, having a sound board, the sound board vibrates in response to vibrations of a string responsive to depression of a key. A waveform corresponding to such vibrations of the sound board is detected and recorded. The recorded vibration waveform is usable for reproduction of a sound based on sound board vibrations. In a sound reproduction apparatus, such as a piano, having a sound board, an excitation device physically excitable in response to an input waveform is provided on the sound board. A signal indicative of a vibration waveform of the sound board is received, and the excitation device is driven in accordance with the received waveform signal so that the sound board is vibrated. Thus, a sound based on the sound board vibrations can be replicated or reproduced with a high quality.

Abstract: In a musical instrument, such as a piano, having a sound board, the sound board vibrates in response to vibrations of a string responsive to depression of a key. A waveform corresponding to such vibrations of the sound board is detected and recorded into a memory for each of the keys. The recorded vibration waveform is usable for reproduction of a sound based on sound board vibrations. In a sound reproduction apparatus, such as a piano, having a sound board, an excitation device physically excitable in response to an input waveform is provided on the sound board. In response to an operation of a key, a sound board vibration waveform corresponding to the operated key is read out from the memory, and the excitation device is driven in accordance with the read-out waveform signal so that the sound board is vibrated.

Abstract: An automatic player piano is equipped with a recording system equipped with a sequencer, to which event data codes for note-on and note-off events and a digital external audio signal expressing singer's voice are supplied; the sequencer supplements duration data codes to the event data codes, and produces RIFF audio data codes expressing the voice; and respectively stores the event data codes and duration data codes and the RIFF audio data codes in a standard MIDI file and a RIFF file.

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.

Abstract: Electronic piano includes speakers arranged on its front side region and another speaker provided at a back position of the piano. Waveform memory provided in a tone generator section has prestored therein sets of four-channel waveform data, each of the sets corresponding to a tone. The four-channel waveform data are data recorded from a natural musical instrument via four microphones installed at sampling positions corresponding to the above-mentioned speakers. The microphones are installed with the on-microphone setting in which the microphones are positioned close to sounding members of the natural musical instrument. In response to depression of a key, any one of the sets of four-channel waveform data, corresponding to a tone pitch designated by the key depression, is read out from the waveform memory, so that the four-channel waveform data are supplied in parallel to the individual speakers.

Abstract: Watermark information indicative of content of music piece performance data to be reproduced in synchronism with a first audio signal is embedded into the first audio signal, and the resultant signal is acquired as a second audio signal. In parallel to the above-mentioned processing, the watermark information is decoded from the second audio signal, the content of music piece performance data to be reproduced is identified on the basis of the decoded watermark information, and then a tone signal based on the music piece performance data is reproduced in accordance with the identified content.

Abstract: A modulation device includes: a spread code generation unit which generates a spread code having a predetermined cycle; an audio signal input unit to which an audio signal is input; a first modulation unit which phase-modulates the spread code in each cycle on the basis of a data code; and a combining unit which combines the audio signal with a modulation signal which has been generated on the basis of the phase-modulated spread code and distributed in a frequency range higher than a predetermined frequency to output a combined signal.

Abstract: Electronic piano includes speakers arranged on its front side region and another speaker provided at a back position of the piano. Waveform memory provided in a tone generator section has prestored therein sets of four-channel waveform data, each of the sets corresponding to a tone. The four-channel waveform data are data recorded from a natural musical instrument via four microphones installed at sampling positions corresponding to the above-mentioned speakers. The microphones are installed with the on-microphone setting in which the microphones are positioned close to sounding members of the natural musical instrument. In response to depression of a key, any one of the sets of four-channel waveform data, corresponding to a tone pitch designated by the key depression, is read out from the waveform memory, so that the four-channel waveform data are supplied in parallel to the individual speakers.

Abstract: A grand piano generates acoustic tones through vibrations of strings and sound board so that the acoustic tones are converted to analog audio signals at recording points over the sound board, and a group of waveform data sets are produced from the analog audio signal through sampling and analog-to-digital conversion; when electronic tones are generated, delay parameters and volume parameters are determined on the basis of differences between the recording points and tone radiating points occupied by loud speakers, the sets of waveform data series are sequentially read out from the group of waveform data sets and are modified with the delay parameters and volume parameters so that the electronic tones become close to the acoustic tones.

Abstract: A grand piano generates acoustic tones through vibrations of strings and sound board so that the acoustic tones are converted to analog audio signals at recording points over the sound board, and a group of waveform data sets are produced from the analog audio signal through sampling and analog-to-digital conversion; when electronic tones are generated, delay parameters and volume parameters are determined on the basis of differences between the recording points and tone radiating points occupied by loud speakers, the sets of waveform data series are sequentially read out from the group of waveform data sets and are modified with the delay parameters and volume parameters so that the electronic tones become close to the acoustic tones.

Abstract: An automatic player piano is equipped with a recording system equipped with a sequencer, to which event data codes for note-on and note-off events and a digital external audio signal expressing singer's voice are supplied; the sequencer supplements duration data codes to the event data codes, and produces RIFF audio data codes expressing the voice; and respectively stores the event data codes and duration data codes and the RIFF audio data codes in a standard MIDI file and a RIFF file.