Patent ID: 9142200
Filing Date: 2015-09-22
Classification: G10H

Abstract:
1. A wind synthesizer controller comprising: a microphone detecting a sound generated by flowed in expiration; an expiration intensity measuring unit measuring intensity of the expiration on the basis of a detected sound signal; and a controller generating volume information on the basis of the measured expiration intensity, wherein the volume information at least comprises note on, note off, and velocity, wherein the expiration intensity measuring unit filters the detected sound signal and passes a frequency band of a set cutoff frequency or lower, calculates a first DC voltage output for the filtered frequency band, and measures the first DC voltage output as first expiration intensity, and wherein, when the first DC voltage output is not smaller than a set threshold value, the expiration intensity measuring unit calculates a second DC voltage output for the sound signal detected by the microphone and measures the second DC voltage output as second expiration intensity.