Sound source recording apparatus and method adaptable to operating environment

摘要

Disclosed herein is a sound source recording apparatus and method adaptable to an operating environment, which can record a target sound source at a predetermined level without being affected by characteristics of the sound source or ambient noise. A target sound source is separated from a sound source signal received through an array of microphones and a recording sound pressure level and a gain are estimated using a reference sound pressure level and a reference distance for the target sound source, thereby controlling or adjusting the gain of the microphones.

主权项

1. 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 intensity level of the target sound source; comparing the measured sound intensity level with a preset reference sound intensity level for the target sound source; resetting the measured sound intensity level as the reference sound intensity level if the measured sound intensity level is different from the reference sound intensity level and estimating a recording sound intensity level and a gain of the microphones using the reset reference sound intensity level; and adjusting gain of the microphones according to the estimated gain and recording the target sound source.