Sony Interactive Entertainment Inc.

Sony Corporation

Yoshihiko Tamaru

Tetsuro Horikawa

Provided is an audio signal processing device that receives an operation input made by a user and performs noise removal processing for removing noise from a collected audio signal collected by a microphone, and that changes content of the noise removal processing according to content of the operation input.

Audio signal processing device

A sound signal processing system includes: a sound signal processing apparatus executing non-linear signal processing on a collected sound signal collected by a microphone, and transmitting, to an information processing apparatus, both a pre-execution sound signal before the non-linear signal processing is executed and a post-execution sound signal after the non-linear signal processing is executed; and the information processing apparatus receiving the pre-execution sound signal and the post-execution sound signal from the sound signal processing apparatus, and executing first processing on the pre-execution sound signal and executing second processing on the post-execution sound signal, the second processing being different from the first processing.

Sound signal processing system apparatus for avoiding adverse effects on speech recognition

A sound signal processing device that acquires a collected-sound signal obtained by sampling a sound collected by a microphone at a first sampling frequency, and receives a reproduced-sound signal obtained by sampling a sound for reproduction at a second sampling frequency different from the first sampling frequency, and then converts the sampling frequency of the reproduced-sound signal into the first sampling frequency so as to remove an acoustic echo from the collected-sound signal by using the reproduced-sound signal whose sampling frequency has been converted.

Sound signal processing device

Main voice processing is performed on an acoustic signal at a basic sampling frequency fs within one period of the basic sampling frequency fs to allow the main voice processing implemented acoustic signal to undergo down-sampling for implementing voice processing for acoustic effect to the acoustic signal at another sampling frequency 1/2 fs or one half the basic sampling frequency to allow the acoustic signal which has been subjected to voice processing for acoustic effect to undergo up-sampling and thus to continuously carry out the main voice processing by the basic sampling frequency fs and the voice processing for acoustic effect by another sampling frequency 1/2 fs.

Growing community of inventors

Kanagawa, Japan

Yoshihiko Tamaru