A musical note generation device includes at least one processor, performing a process of generating convolved sound waveform data by convolving first sound waveform data corresponding to pitch information associated with a specified key with second sound waveform data corresponding to an impulse response; a process of generating third sound waveform data by respectively reducing, among frequency components included in the generated convolved sound waveform data, amplitudes of respective frequency components of a fundamental tone and harmonics of the fundamental tone corresponding to a pitch indicated by the pitch information; and a process of outputting piano sound waveform data generated on the basis of the generated third sound waveform data generated.

A musical note generation device includes at least one processor that performs a process of generating attenuated sound waveform data by respectively reducing, among frequency components included in first sound waveform data corresponding to pitch information associated with a specified key, amplitudes of respective frequency components of a fundamental tone and harmonics of the fundamental tone corresponding to a pitch indicated by the pitch information; a process that convolves the generated attenuated sound waveform data generated with second sound waveform data corresponding to at least one of a high sound range side impulse response and a low sound range side impulse response, so as to generate third sound waveform data; and a process of outputting piano sound waveform data generated on the basis of the third sound waveform data generated by the convolution process.

An electronic piano including a plurality of keys and a sound source device (sound emission section) that emits a sound by pressing down the key, is provided with a resonance circuit that stereo-inputs a sound source from the sound source device corresponding to the each key, a plurality of resonance circuit groups that execute a stereo mix process with the plurality of resonance circuits being made one group, and delay circuits that provide a time difference to each stereo output from the each resonance circuit group, and outputs of the respective delay circuits are synthesized to obtain a stereo output.

An electronic piano including a plurality of keys and a sound source device (sound emission section) that emits a sound by pressing down the key, is provided with a resonance circuit that stereo-inputs a sound source from the sound source device corresponding to the each key, a plurality of resonance circuit groups that execute a stereo mix process with the plurality of resonance circuits being made one group, and delay circuits that provide a time difference to each stereo output from the each resonance circuit group, and outputs of the respective delay circuits are synthesized to obtain a stereo output.

An electronic musical instrument includes a keyboard, a sound-producing system, and a control unit. A panning value indicating a left-right balance of sound outputted from a left speaker and a right speaker in stereo sound production is assigned to each key of the keyboard such that the left-right balance of soundboard resonant sound waveform data for certain higher-pitch keys is shifted towards the left-speaker as compared with the left-right balance of soundboard resonant sound waveform data for certain lower-pitch keys that are located to the left of the higher-pitch keys so as to produce realistic piano sound mimicking an actual piano.

In an electronic piano including plural keys and a sound source device (sound emission section) that emits a sound by pressing of the key, an intermediary resonance state of a resonance sound can be reproduced by including a resonance circuit that inputs a sound source from the sound source device corresponding to the each key and outputs a resonance sound, a position detection sensor (multi-stage switch section) in which plural switches close sequentially according to a key pressing state of the key, and a resonance sound control device that controls the resonance sound by an open/close state of plural switches by the position detection sensor.

A musical note generation device includes at least one processor, performing a process of generating convolved sound waveform data by convolving first sound waveform data corresponding to pitch information associated with a specified key with second sound waveform data corresponding to an impulse response; a process of generating third sound waveform data by respectively reducing, among frequency components included in the generated convolved sound waveform data, amplitudes of respective frequency components of a fundamental tone and harmonics of the fundamental tone corresponding to a pitch indicated by the pitch information; and a process of outputting piano sound waveform data generated on the basis of the generated third sound waveform data generated.

A musical note generation device includes at least one processor that performs a process of generating attenuated sound waveform data by respectively reducing, among frequency components included in first sound waveform data corresponding to pitch information associated with a specified key, amplitudes of respective frequency components of a fundamental tone and harmonics of the fundamental tone corresponding to a pitch indicated by the pitch information; a process that convolves the generated attenuated sound waveform data generated with second sound waveform data corresponding to at least one of a high sound range side impulse response and a low sound range side impulse response, so as to generate third sound waveform data; and a process of outputting piano sound waveform data generated on the basis of the third sound waveform data generated by the convolution process.

A sound producing apparatus includes: a plurality of sound producing members with differing oscillation frequencies; dampers each corresponding to a respective sound producing member and suppressing vibration by contacting the corresponding sound producing members; a damper operation mechanism that moves each damper, thereby controlling a state of contact of the damper with a corresponding sound producing members; a soundboard that undergoes sympathetic resonance with sound producing members; a vibrator that vibrates the soundboard; an acquisition unit configured to acquire an audio signal; a signal output unit configured to: generate a drive signal for driving the vibrator with a vibration corresponding to the acquired audio signal; and output the drive signal to the vibrator; and a damper control unit configured to drive the damper operation mechanism to change a state of contact between the sound producing members and their corresponding dampers, based on frequency distribution of acquired audio signal.

An electronic keyboard musical instrument with a plurality of keys is provided. The electronic keyboard musical instrument comprises a detection sensor configured to detect a gentle key press to an adjacent position that is shallower than and adjacent to a resonant performance position; a computer configured to, when the detection sensor detects a gentle key press to the adjacent position of at least one first key, execute a resonance permission process to give a permission to output a resonant tone of the at least one first key; and a tone emission device configured to, when at least one second key different from the at least one first key and having a resonant relationship with the at least one first key is regularly pressed, emit a regular tone of the at least one second key and the resonant tone of the at least one first key.