US 11,127,387 B2 · Sound source for electronic percussion instrument and sound production control method thereof

Abstract

A sound source for an electronic percussion instrument and sound production control method thereof are provided. An electronic drum sound source device performs a weighting operation on four pieces of waveform information (pitch envelope, amplitude envelope, start phase) stored in a waveform table according to the beating conditions (hitting point position, velocity) based on the output from a struck sensor of an electronic drum pad. The electronic drum sound source device creates a sine wave on the basis of the waveform information whereon the weighting operation was performed, and generates musical sounds (sounds of percussion instrument) by synthesizing the sine wave with the waveforms of residual waveform data whereon the weighting operation was performed. The sine wave is not synthesized with waveform data other than the residual waveform data, and thus consistent musical sounds with no phase interference can be reproduced.

Claims20

Dependent claims

A sound source of an electronic percussion instrument comprising a struck surface and a struck sensor for detecting hits on the struck surface, comprising:

a waveform data storage means which stores waveform data of musical sounds in different beating conditions;
and
a sound generation control means which generates musical sounds by using the waveform data stored in the waveform data storage means in accordance with results of detection by the struck sensor,
wherein the waveform data storage means comprises two or more pieces of waveform data in different beating conditions,
with respect to each beating condition, one of the pieces of the waveform data comprises pitch envelope data and amplitude envelope data for one or a plurality of sine wave components separated from an original waveform of a musical sound, and a residual component of the original waveform from which the one or the plurality of sine wave components are separated, and
the sound generation control means generates a sine wave component based on the pitch envelope data and the amplitude envelope data of the two or more pieces of waveform data stored in the waveform data storage means in accordance with detection results of the struck sensor and synthesizes the sine wave component with the residual component to generate musical sounds.

3 more elements

A sound production control method for detecting hits on a struck surface of an electronic percussion instrument and performing sound production control on a musical sound according to detecting result of the hits,

the method comprises:
storing two or more pieces of waveform data of musical sounds recorded from an percussion in different beating conditions, wherein with respect to each beating condition, one of the pieces of the stored waveform data comprises pitch envelope data and amplitude envelope data for one or a plurality of sine wave components separated from an original waveform of the recorded musical sound, and a residual component of the original waveform from which the one or the plurality of sine wave components are separated;
generating a sine wave component based on the pitch envelope data and the amplitude envelope data of the two or more pieces of stored waveform data in accordance with detection results of the hit;
and
synthesizing the generated sine wave component with the residual component to generate musical sounds.

2 more elements

Dependencies are inferred from the claim text.

Sound source for electronic percussion instrument and sound production control method thereof

Life of this patent

Sound source for electronic percussion instrument and sound production control method thereof

Life of this patent

Abstract

Claims20