Keyboard musical instrument, and method for recording half performance of pedal or key damper on keyboard musical instrument

Patent metadata

Field	Value
Publication number	US-9384720-B2
Application number	US-201414250762-A
Country	US
Kind code	B2
Filing date	Apr 11, 2014
Priority date	Apr 11, 2013
Publication date	Jul 5, 2016
Grant date	Jul 5, 2016

Abstract

Dampers provided in corresponding relation to a plurality of keys are each controlled in response to both an operation of a pedal and an operation of the corresponding key. One half region or half point is determined based on a plurality of half pedal regions or half pedal points, in a stroke of the pedal, specific to the individual dampers. Performance data instructing a pedal operation is generated and recorded on the basis of a stroke position detected in response to a pedal operation and the determined one half region or half point. For each of the keys, a key-damper half region or key-damper half point in a stroke of the key is identified in advance. Performance data instructing key operations is generated and recorded on the basis of the key-damper half regions or key-damper half points specific to the keys and stroke positions detected in response to key operations.

First claim

What is claimed is:

1. A keyboard musical instrument comprising:
a plurality of keys each configured to control generation and deadening of a corresponding sound in response to an operation of the key;
a plurality of dampers each provided in corresponding relation to one of the keys and configured to be driven, in response to an operation of the corresponding key, to control deadening of a sound corresponding to the key;
a pedal configured to collectively drive the plurality of dampers;
a sensor configured to detect a stroke position of the pedal; and
a processor configured to execute:
an acquisition task that acquires information identifying one half region or half point in a stroke of the pedal, the one half region or half point being determined based on a plurality of half pedal regions or half pedal points, in the stroke of the pedal, specific to individual ones of the dampers;
a performance data generation task that generates performance data including data instructing a pedal operation, based on the one half region or half point identified by the information and the stroke position detected by the sensor; and
a recording task that records the performance data including data instructing a pedal operation generated by the performance data generation task.

2. The keyboard musical instrument as claimed in claim 1 , further comprising:
a memory storing the plurality of half pedal regions or half pedal points specific to the individual dampers acquired in advance,
wherein the acquisition task:
reads the plurality of half pedal regions or half pedal points specific to the individual dampers from the memory; and
determine the one half region or half point based on the referenced plurality of half pedal regions or half pedal points specific to the individual dampers.

3. The keyboard musical instrument as claimed in claim 2 , wherein the one half region is determined based on a depression-end-side end position closest to a depression end of the pedal among depression-end-side end positions in the plurality of half pedal regions specific to the individual dampers and a rest-position-side end position closest to a rest position of the pedal among rest-position-side end positions in the plurality of half pedal regions.

4. The keyboard musical instrument as claimed in claim 1 , further comprising a memory storing the information identifying the one half region or half point determined in advance based on the plurality of half pedal regions or half pedal points specific to the individual dampers.

5. The keyboard musical instrument as claimed in claim 1 , wherein:
the performance data generation task converts the stroke position detected by the sensor into normalized stroke position data in accordance with a conversion table for associating the one half region or half point, identified by the information, with a predetermined standard half region or half point, and
the performance data generation task generates the performance data including the normalized stroke position data as the data instructing a pedal operation.

6. A method of recording a pedal performance on a keyboard musical instrument, the keyboard musical instrument including:
a plurality of keys each configured to control generation and deadening of a corresponding sound in response to an operation of the key;
a plurality of dampers each provided in corresponding relation to one of the keys and configured to be driven, in response to an operation of the corresponding key, to control deadening of a sound corresponding to the key;
a pedal configured to collectively drive the plurality of dampers;
a sensor configured to detect a stroke position of the pedal; and
a processor,
wherein the processor executed the method comprising:
an acquisition step of acquiring information identifying one half region or half point in a stroke of the pedal, the one half region or half point being determined based on a plurality of half pedal regions or half pedal points, in the stroke of the pedal, specific to individual ones of the dampers;
a performance data generation step of generation performance data including data instructing a pedal operation, based on the one half region or half point identified by the information and the stroke position detected by the sensor; and
a recording step of recording the performance data including data instructing a pedal operation generated in the performance data generation step.

7. A non-transitory computer-readable storage medium storing a program for implementing a method of recording a pedal performance on a keyboard musical instrument, the keyboard musical instrument including:
a plurality of keys each configured to control generation and deadening of a corresponding sound in response to an operation of the key;
a plurality of dampers each provided in corresponding relation to one of the keys and configured to be driven, in response to an operation of the corresponding key, to control deadening of a sound corresponding to the key;
a pedal configured to collectively drive the plurality of dampers;
a sensor configured to detect a stroke position of the pedal; and
a processor,
wherein the program is executed by the processor to execute the method comprising:
an acquisition step of acquiring information identifying one half region or half point in a stroke of the pedal, the one half region or half point being determined based on a plurality of half pedal regions or half pedal points, in the stroke of the pedal, specific to individual ones of the dampers;
a performance data generation step of generating performance data including data instructing a pedal operation, based on the one half region or half point identified by the information and the stroke position detected by the sensor; and
a recording step of recording the performance data including data instructing a pedal operation generated in the generation step.

8. A keyboard musical instrument comprising:
a plurality of keys each configured to control generation and deadening of a corresponding sound in response to an operation of the key;
a plurality of dampers each provided in corresponding relation to one of the keys and configured to be driven, in response to an operation of the corresponding key, to control deadening of a sound corresponding to the key;
a plurality of detectors each provided in corresponding relation to one of the plurality of keys, with each detector configured to detect a stroke position of the corresponding one key;
a processor configured to execute:
an acquisition task that acquires, for each of the plurality of keys, information identifying a key-damper half region or key-damper half point, in a stroke of the respective key;
a performance data generation task the generates performance data including data instructing key operations, based on the stroke positions of the keys detected by the detectors and the key-damper half regions or key-damper half points specific to the individual ones of the keys; and
a recording task that records the performance data including data instructing key operations data generated by the performance data generation task.

9. The keyboard musical instrument as claimed in claim 8 , wherein, when the stroke position of a key, among the plurality of keys, detected by the respective one detector is related to the key-damper half region or key-damper half point specific to that key, the performance data generation task generates the performance data including normalized data instructing a key operation related to a key-damper half region or key-damper half point specific to that key.

10. The keyboard musical instrument as claimed in claim 9 , wherein the performance data generation task generate

Assignees

• Yamaha Corp

Inventors

• Oba Yasuhiko
• Fujiwara Yuji

Classifications

• G10F1/02

  Pianofortes with keyboard · CPC title

• G10H1/344 Primary

  Structural association with individual keys (electrically operated wind-actuated organs G10B3/22) · CPC title

• G10H2220/265

  Key design details; Special characteristics of individual keys of a keyboard; Key-like musical input devices, e.g. finger sensors, pedals, potentiometers, selectors · CPC title

• G10C3/26

  Pedals or pedal mechanisms (G10C3/14 takes precedence); Manually operated sound modification means · CPC title

• G10H2220/305

  using a light beam to detect key, pedal or note actuation · CPC title