Patent ID: 9154870
Filing Date: 2015-10-06
Classification: H04R

Abstract:
1. A sound generation device, comprising: a receiver which receives a sound emission instructing signal which includes time data; a difference calculator which calculates a difference time between a first timing indicated in the received time data and a second timing when the receiver receives the sound emission instructing signal, each time the sound emission instructing signal is received; a histogram creator which creates a histogram based on a plurality of difference times calculated previously by the difference calculator, each time a current difference time is calculated by the difference calculator; and a timing controller which controls a timing for sending the received sound emission instructing signal to a sound emission unit based on the current difference time, which is the difference time most recently calculated by the difference calculator, and a highest frequency difference time which has a highest frequency in the created histogram, each time the difference time is calculated, wherein the timing controller includes a determination unit and a sending unit, wherein the determination unit determines whether the current difference time is longer than the highest frequency difference time, wherein, when the determination unit determines that the current difference time is equal to or longer than the highest frequency difference time, the sending unit sends the received sound emission instructing signal to the sound emission unit at the second timing, and wherein, when the determination unit determines that the current difference time is less than the highest frequency difference time, the sending unit sends the received sound emission instructing signal to the sound emission unit at a third timing obtained by adding the highest frequency difference time to the first timing.