Sound source recording apparatus and method adaptable to operating environment

A sound source recording method adaptable to an operating environment, the method comprising:

• separating a target sound source from a signal received through an array of microphones;
• measuring a sound source distance and a sound intensity level of the target sound source;
• initially setting the measured sound intensity level as a reference sound intensity level and initially setting the measured sound source distance as a reference distance;
• estimating a recording sound intensity level and a gain of the microphones using the initially set reference sound intensity level and reference distance;
• and
• adjusting gain of the microphones according to the estimated gain and recording the target sound source.

A sound source recording apparatus adaptable to an operating environment, the apparatus comprising:

• a sound source receiver to receive a sound source signal through an array of microphones;
• a gain controller to adjust gain of the microphones according to a gain control signal to control a sound intensity of the received sound source signal;
• a signal converter to convert adjusted gain received from the gain controller to a digital signal and to provide the digital signal to a controller and a storage unit;
• a distance measurement unit to measure a sound source distance of a target sound source;
• and
• the controller to separate the target sound source from the received sound source signal, analyze the separated target sound source to estimate gain of the microphones, re-estimate gain of the microphones if the sound source distance measured by the distance measurement unit has changed, and provide the gain control signal according to the estimated gain of the microphones.