Binaural beat sound output device having improved sound field and method therefor
AssigneeDlogixs Co., Ltd
InventorsIn Taek Jeong, Sung Kee Park, Sang Ouk Lee, Keun Young Hur
Life of this patent
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Abstract
The present invention relates to a binaural beat sound output device having an improved sound field and a method therefor and, more specifically, to: a brainwave sound output device using binaural beats, which receives music desired by a user and applies binaural beats to a specific frequency band thereof, so that the device can provide the music through a stereo sound source while inducing a desired brainwave state by the stereo sound source, and thus can improve the sound field without the sense of rejection or monotony to the music; and a method therefor.
Claims12
A binaural beat sound output device having an improved sound field, comprising:
- a sound source input unit 100 receiving sound source data composed of a first stereo sound source signal and a second stereo sound source signal;
- a mono conversion 200 receiving the sound source data and converting the sound source data into a first mono sound source signal to generate the first mono sound source signal;
- a frequency control unit 300 receiving the first stereo sound source signal, the second stereo sound source signal, and the first mono sound source signal, analyzing frequency bands constituting the first stereo sound source signal, the second stereo sound source signal, and the first mono sound source signal, and shifting a specific frequency band in the frequency band constituting the first mono sound source signal by a predetermined frequency to generate a second mono sound source signal;
- and
- an output audio generation 400 generating a first stereo output signal by removing the specific frequency band of the first stereo sound source signal and adding the specific frequency band of the first mono sound source signal and generating a second stereo output signal by removing the specific frequency band of the second stereo sound source signal and adding the specific frequency band of the second mono sound source signal.
A binaural beat sound output method having an improved sound field, comprising:
- a sound source receiving step of receiving sound source data stored in advance or input from the outside and composed of a first stereo sound source signal and a second stereo sound source signal, by a sound source input unit;
- a mono generating step of receiving the sound source data and converting the sound source data into a first mono sound source signal to generate the first mono sound source signal, by a mono conversion unit;
- a frequency band analyzing step of receiving the first stereo sound source signal, the second stereo sound source signal, and the first mono sound source signal and analyzing frequency bands constituting the first stereo sound source signal, the second stereo sound source signal, and the first mono sound source signal, by a frequency control unit;
- a frequency shifting step of shifting a specific frequency band in the frequency band constituting the first mono sound source signal by a predetermined frequency to generate a second mono sound source signal, by the frequency control unit;
- and
- an output audio generating step of generating a first stereo output signal by removing the specific frequency band of the first stereo sound source signal and adding the specific frequency band of the first mono sound source signal and generating a second stereo output signal by removing the specific frequency band of the second stereo sound source signal and adding the specific frequency band of the second mono sound source signal, by an output audio generation unit,
- wherein the binaural beat sound output method having an improved sound field further comprises a controlling step of varying the specific frequency band or the predetermined frequency according to a manipulation of a user or preset mode information, by an integrated control unit.
Dependencies are inferred from the claim text.