Method, medium and apparatus enhancing a bass signal using an auditory property
First Claim
1. A method of enhancing an acoustic signal, the method comprising:
- generating a plurality of harmonic signals based on a predetermined audio signal;
selecting harmonic signals that exist in an area masked by a predetermined harmonic signal, from among the generated plurality of harmonic signals; and
outputting harmonic signals remaining after excluding the selected harmonic signals from the generated plurality of harmonic signals.
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Abstract
Provided are a method, medium and apparatus for enhancing an acoustic signal using an auditory property. An acoustic signal is enhanced by generating a plurality of harmonic signals based on a predetermined acoustic signal frequency, selecting harmonic signals, which exist in an area masked by the predetermined harmonic signal, from among the generated plurality of harmonic signals, and outputting harmonic signals remaining after excluding the selected harmonic signals from the generated plurality of harmonic signals. The enhancement results in a bass signal of good sound quality and having a low distortion ratio, without changing the structure of a micro speaker.
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Citations
30 Claims
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1. A method of enhancing an acoustic signal, the method comprising:
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generating a plurality of harmonic signals based on a predetermined audio signal; selecting harmonic signals that exist in an area masked by a predetermined harmonic signal, from among the generated plurality of harmonic signals; and outputting harmonic signals remaining after excluding the selected harmonic signals from the generated plurality of harmonic signals. - View Dependent Claims (2, 3, 4, 5, 11)
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6. A method of enhancing an acoustic signal, the method comprising:
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generating a plurality of harmonic signals based on a predetermined audio signal; selecting harmonic signals that do not exist in an area masked by a predetermined harmonic signal, from among the generated plurality of harmonic signals; upon a Total Harmonic Distortion (THD) value, calculated while increasing an order of the selected harmonic signals, exceeding a predetermined THD value, determining a minimum order of harmonic signals, whose THD value exceeds the predetermined THD value, as a limited harmonic order; and outputting harmonic signals whose order is lower than the determined limited harmonic order from among the selected harmonic signals. - View Dependent Claims (7, 8, 9, 10)
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12. An apparatus for enhancing a bass signal using an auditory property, the apparatus comprising:
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a harmonic generator to generate a plurality of harmonic signals based on a predetermined audio signal; a harmonic selector to select harmonic signals that are not masked by a predetermined harmonic signal, from among the generated plurality of harmonic signals; and an output unit to output harmonic signals selected by the harmonic selector. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. An apparatus for enhancing an acoustic signal, the apparatus comprising:
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a harmonic generator to generate a plurality of harmonic signals based on a predetermined audio signal; a harmonic selector to select harmonic signals masked by a predetermined harmonic signal, from among the generated plurality of harmonic signals; and an amplitude adjuster to adjust amplitudes of harmonic signals selected by the harmonic selector to “
0.” - View Dependent Claims (20, 21, 22, 23, 24, 25)
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26. A method of representing an audio signal using a plurality of harmonics generated from the audio signal, the method comprising:
- generating a masking curve based on a harmonic of the audio signal; and
selecting only unmasked harmonics, based on the generated masking curve, to represent the audio signal. - View Dependent Claims (27, 28, 29, 30)
- generating a masking curve based on a harmonic of the audio signal; and
Specification