Sound producing apparatus, keyboard instrument, and sound production control method

A sound producing apparatus comprising:

• a plurality of sound producing members having oscillation frequencies different from each other;
• dampers that are disposed so as to correspond to respective ones of the sound producing members and suppress vibration by coming into contact with the respective corresponding sound producing members;
• a damper operation mechanism that moves each of the dampers, thereby controlling a state of contact of the damper with a corresponding one of the sound producing members;
• a soundboard that undergoes sympathetic resonance with the 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 so as to change a state of contact between the sound producing members and the respective corresponding dampers, on the basis of a frequency distribution of the acquired audio signal.

A sound producing apparatus comprising:

• a plurality of sound producing members having oscillation frequencies different from each other;
• dampers that are disposed so as to correspond to respective ones of the sound producing members and suppress vibration by coming into contact with the respective corresponding sound producing members;
• a damper operation mechanism that moves each of the dampers, thereby controlling a state of contact of the damper with a corresponding one of the sound producing members;
• a soundboard that undergoes sympathetic resonance with the 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 so as to change a state of contact between the sound producing members and the respective corresponding dampers, on the basis of a sound intensity of the acquired audio signal.

A sound production control method for use in a sound producing apparatus including:

• a plurality of sound producing members having oscillation frequencies different from each other;
• dampers that are disposed so as to correspond to respective ones of the sound producing members and suppress vibration by coming into contact with the respective corresponding sound producing members;
• a damper operation mechanism that moves each of the dampers, thereby controlling a state of contact of the damper with a corresponding one of the sound producing members;
• a soundboard that undergoes sympathetic resonance with the sound producing members;
• and a vibrator that vibrates the soundboard, the method comprising the steps of:
• acquiring performance control data containing pitch information that specifies at least a pitch of a sound producing content;
• generating an audio signal indicating the sound producing content on the basis of the performance control data, and driving the vibrator in accordance with the sound producing content on the basis of the generated audio signal;
• and
• driving the damper operation mechanism so as to change a state of contact between the sound producing members and the respective corresponding dampers on the basis of the pitch specified by the performance control data.

A sound production control method for use in a sound producing apparatus including:

• a plurality of sound producing members having oscillation frequencies different from each other;
• dampers that are disposed so as to correspond to respective ones of the sound producing members and suppress vibration by coming into contact with the respective corresponding sound producing members;
• a damper operation mechanism that moves each of the dampers, thereby controlling a state of contact of the damper with a corresponding one of the sound producing members;
• a soundboard that undergoes sympathetic resonance with the sound producing members;
• and a vibrator that vibrates the soundboard, the method comprising the steps of:
• acquiring an audio signal;
• driving the vibrator with a vibration corresponding to the audio signal;
• and
• driving the damper operation mechanism so as to change a state of contact between the sound producing members and the respective corresponding dampers, on the basis of a frequency distribution of the audio signal.

A sound production control method for use in a sound producing apparatus including:

• a plurality of sound producing members having oscillation frequencies different from each other;
• dampers that are disposed so as to correspond to respective ones of the sound producing members and suppress vibration by coming into contact with the respective corresponding sound producing members;
• a damper operation mechanism that moves each of the dampers, thereby controlling a state of contact of the damper with a corresponding one of the sound producing members;
• a soundboard that undergoes sympathetic resonance with the sound producing members;
• and a vibrator that vibrates the soundboard, the method comprising the steps of:
• acquiring an audio signal;
• driving the vibrator with a vibration corresponding to the audio signal;
• and
• driving the damper operation mechanism so as to change a state of contact between the sound producing members and the respective corresponding dampers, on the basis of a sound intensity of the audio signal.