An apparatus and method for generating pulsating noise in an audio device
are provided. The apparatus and method mix audio signals processed by an
audio play operation with pulsating noise generated by a pulsating noise
generator if a brain wave induction mode is set in an audio device and
output a result of the mixing operation through wired or wireless
speaker. Therefore, a user can efficiently experience brain wave
induction action based on the pulsating noise while he/she hears audio
from the speaker.