AUDIO REPRODUCTION METHOD AND APPARATUS WITH AUTO VOLUME CONTROL FUNCTION
First Claim
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1. An audio reproduction method comprising:
- splitting a reproduction audio signal into audio signals corresponding to a plurality of frequency bands;
extracting audio energy for each of the frequency bands; and
comparing the audio energy for each of the frequency bands with a predetermined threshold to control a volume of an input audio signal corresponding to each of the frequency bands.
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Abstract
An audio reproduction method and apparatus, in which an audio volume is automatically controlled based on audio energy and human auditory characteristics. The audio reproduction method includes splitting a reproduction audio signal into audio signals corresponding to a plurality of frequency bands, extracting audio energy for each of the frequency bands, and comparing the audio energy for each of the frequency bands with a predetermined threshold and controlling the volume of the audio signal corresponding to each of the frequency bands.
17 Citations
24 Claims
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1. An audio reproduction method comprising:
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splitting a reproduction audio signal into audio signals corresponding to a plurality of frequency bands; extracting audio energy for each of the frequency bands; and comparing the audio energy for each of the frequency bands with a predetermined threshold to control a volume of an input audio signal corresponding to each of the frequency bands. - View Dependent Claims (2, 3, 4, 5)
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6. An audio reproduction apparatus comprising:
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a band splitting unit to split a reproduction audio signal into audio signals corresponding to a plurality of frequency bands; an audio monitoring unit to accumulate reproduced audio energy for each of the frequency bands, comparing the audio energy for each of the frequency bands with a predetermined threshold, and to generate volume control information; and a volume control unit to control a volume of an input audio signal corresponding to each of the frequency bands according to the volume control information generated by the audio monitoring unit. - View Dependent Claims (7, 8)
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9. An audio volume control apparatus to reproduce a reproduction audio signal from an input audio signal, comprising:
a volume control unit to control a plurality of frequency bands of the input audio signal according to corresponding ones of characteristics of the respective frequency bands of the reproduction audio signal. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
Specification