US 12,379,892 B2
Audio signal processing device, audio signal processing method, and program
Kenta Sagawa, Yokohama (JP); Mitsunobu Endo, Yokohama (JP); Syunsuke Otani, Yokohama (JP); Yusuke Tsuda, Yokohama (JP); and Shinya Koizumi, Yokohama (JP)
Assigned to ALPHATHETA CORPORATION, Yokohama (JP)
Appl. No. 18/044,131
Filed by AlphaTheta Corporation, Yokohama (JP)
PCT Filed Sep. 7, 2020, PCT No. PCT/JP2020/033744
§ 371(c)(1), (2) Date Mar. 6, 2023,
PCT Pub. No. WO2022/049761, PCT Pub. Date Mar. 10, 2022.
Prior Publication US 2023/0333806 A1, Oct. 19, 2023
Int. Cl. G10H 1/40 (2006.01); G06F 3/16 (2006.01)
CPC G06F 3/162 (2013.01) 7 Claims
OG exemplary drawing
 
1. An audio signal processing apparatus comprising:
a first buffer configured to temporarily store an audio signal;
a feedback path whose start point and end point are located on an output side of the first buffer;
a second buffer connected in the feedback path and configured to temporarily store the audio signal; and
a gate connected to the output side of the first buffer and not connected in the feedback path,
wherein the gate is turned on when a predetermined trigger operation is performed and is turned off when the audio signal of a predetermined time length is transmitted.
 
5. An audio signal processing method comprising:
temporarily storing an inputted audio signal in a first buffer;
turning on a gate connected to an output side of the first buffer to output the audio signal stored in the first buffer and temporarily store the outputted audio signal in a second buffer;
turning off the gate when the audio signal of a predetermined time length is transmitted; and
outputting the audio signal stored in the second buffer and feeding back the audio signal to the second buffer.
 
7. A non-transitory tangible recording medium recording a program configured to cause a computer to function as an audio signal processing apparatus comprising:
a first buffer configured to temporarily store an audio signal;
a feedback path whose start point and end point are located on an output side of the first buffer;
a second buffer connected in the feedback path and configured to temporarily store the audio signal; and
a gate connected to the output side of the first buffer and not connected in the feedback path,
wherein the gate is turned on when a predetermined trigger operation is performed and is turned off when the audio signal of a predetermined time length is transmitted.