公开(公告)号：US20210352407A1

公开(公告)日：2021-11-11

申请号：US17277789

申请日：2019-07-03

Applicant: SONY CORPORATION

Inventor： MASAKI KAMATA ,  NAOKI SHINMEN ,  MICHIAKI YONEDA ,  YOSHIYUKI KURODA

IPC: H04R3/04 ,  H04R9/06

Abstract: A speaker drive unit includes a control signal generation unit and a signal processing unit. The control signal generation unit generates a control signal on the basis of detection signals generated by a plurality of detection units that is disposed in one-to-one correspondence with a plurality of actuators that vibrates a diaphragm, and detects vibration conditions. The signal processing unit includes a plurality of signal systems corresponding one-to-one to the plurality of actuators. The signal systems provide a drive signal to the corresponding actuators on the basis of the same audio signal. The drive signal generated by at least one signal system of the signal systems is controlled by the control signal.

公开(公告)号：US20210076136A1

公开(公告)日：2021-03-11

申请号：US16981377

申请日：2019-03-12

Applicant: SONY CORPORATION

Inventor： MASAKI KAMATA ,  YASUHIRO TOGURI ,  MICHIAKI YONEDA

IPC: H04R3/12 ,  H04R1/20 ,  H03G5/16

Abstract: The present technology relates to a sound output control apparatus, a sound output control method, and a program that make it possible to perform control to prevent a balance of a system from being disturbed when reproduction is performed using a plurality of wireless speakers. A sound output control apparatus includes a transmitter that transmits first setting information regarding a sound output of the sound output control apparatus; a receiver that receives second setting information regarding a sound output of another sound output control apparatus; and a controller that controls a sound pressure or a reproduction frequency range in which reproduction is performed, on the basis of the first setting information or the second setting information. The first setting information and the second setting information each include at least information regarding a temperature, information regarding an amplitude, information regarding a remaining capacity of a power supply, and information regarding the reproduction frequency range. The present technology is applicable to, for example, a wireless speaker.

公开(公告)号：US20190305741A1

公开(公告)日：2019-10-03

申请号：US16463146

申请日：2017-12-08

Applicant: SONY CORPORATION

Inventor： MICHIAKI YONEDA ,  YOSHIYUKI KURODA ,  MASAKI KAMATA

IPC: H03G3/30 ,  H04R3/00

Abstract: The present technology relates to a sound processing device, a method, and a program capable of suppressing an excessive amplitude and obtaining higher quality of sound. A sound processing device includes: a prediction value calculation unit that calculates a prediction value of a displacement of a speaker according to an input signal supplied to the speaker on the basis of an equivalent model of the speaker; and an amplitude control unit that performs amplitude control on the input signal in a case in which the prediction value is greater than a predetermined threshold value. The present technology can be applied to a sound reproduction system.

公开(公告)号：US20150263689A1

公开(公告)日：2015-09-17

申请号：US14638638

申请日：2015-03-04

Applicant: SONY CORPORATION

Inventor： MICHIAKI YONEDA ,  KAZUNOBU OOKURI ,  AYUMI KAKEMA

IPC: H03G3/20

CPC classification number: H03G3/3005 ,  H03G5/16 ,  H04R1/2819 ,  H04R3/00 ,  H04R9/027 ,  H04R2430/01 ,  H04R2430/03 ,  H04R2499/11 ,  H04R2499/15

Abstract: An audio signal processing device includes a volume setting unit that changes a volume of an audio signal according to a control for changing the volume, and a level control unit that controls a level of a predetermined band of the audio signal according to the control.

Abstract translation: 音频信号处理装置包括根据用于改变音量的控制来改变音频信号的音量的音量设置单元，以及根据该控制来控制音频信号的预定频带的电平的电平控制单元。