Signal-separation system using a directional microphone array and method for providing same

摘要

A signal separation system using directional microphone array and a method for providing same. The signal separation system using directional microphone array includes a signal receiving section which receives a mixed signal in which a first audio signal and a second audio signal are mixed using the directional microphone array, the directional microphone array including at least one first microphone oriented in a first direction and at least one second microphone oriented in a direction different from the first direction, and receives a reference signal through the at least one second microphone. An audio signal separating section cancels the second audio signal from the mixed signal received by the signal receiving section, based on the reference signal inputted through the at least one second microphone.

主权项

1. A signal separation system using a directional microphone array comprising:
a signal receiving section configured to receive a mixed signal in which a first audio signal and a second audio signal are mixed using a microphone array, the microphone array comprising at least one first microphone oriented in a first direction and at least one second microphone oriented in a second direction different from the first direction, and receives a reference signal through the at least one second microphone, wherein the at least one first microphone is configured to form a first beam pattern in the first direction, and the at least one second microphone is configured to form a second beam pattern in the second direction; an audio signal separating section configured to cancel the second audio signal from the mixed signal received by the signal receiving section, wherein the audio signal separating section is configured to cancel the second audio signal based on the reference signal inputted through the at least one second microphone, wherein the signal separating section is configured to perform blind source separation (BSS) by setting a first sound source signal corresponding to the first audio signal as a first BSS sound source signal, a second sound source signal corresponding to the second audio signal as a second BSS sound source signal, a signal received through the at least one first microphone as a first BSS input signal, and the reference signal as a second BSS input signal.