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 a plurality of audio signals corresponding to a plurality of frequency bands;
extracting audio energy for each of the plurality of frequency bands based on a predetermined audio reproduction time and a user input volume value;
comparing the audio energy for each of the plurality of frequency bands with a predetermined threshold of each of the plurality of frequency bands; and
controlling a plurality of volumes of the plurality of audio signals corresponding to each of the plurality of frequency bands based on the comparing of the audio energy.
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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.
28 Citations
23 Claims
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1. An audio reproduction method comprising:
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splitting a reproduction audio signal into a plurality of audio signals corresponding to a plurality of frequency bands; extracting audio energy for each of the plurality of frequency bands based on a predetermined audio reproduction time and a user input volume value; comparing the audio energy for each of the plurality of frequency bands with a predetermined threshold of each of the plurality of frequency bands; and controlling a plurality of volumes of the plurality of audio signals corresponding to each of the plurality of frequency bands based on the comparing of the audio energy. - View Dependent Claims (2, 3, 4, 5)
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6. An audio reproduction apparatus comprising:
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a memory to store a reproduction audio signal; and a processor connected to the memory and configured to; split the reproduction audio signal into a plurality of audio signals corresponding to a plurality of frequency bands, accumulate reproduced audio energy for each of the frequency bands based on a predetermined audio reproduction time and an audio volume value for the plurality of frequency bands, compare the reproduced audio energy for each of the plurality of frequency bands with a plurality of predetermined thresholds of the plurality of frequency bands, generate volume control information for a corresponding frequency band of the plurality of frequency bands if an audio energy for a frequency band exceeds a predetermined threshold of the plurality of predetermined thresholds, and control a plurality of volumes of the plurality of audio signals corresponding to each of the plurality of frequency bands according to the generated volume control information. - 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:
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a memory to store the input audio signal, and a processor configured to; control a plurality of volumes of a plurality of frequency bands of the input audio signal according to corresponding characteristics of the respective frequency bands of the reproduction audio signal, wherein the corresponding characteristics of at least one of the respective frequency bands of the reproduction audio signal comprises an audio reproduction time counted according to the at least one of the respective frequency bands of the plurality of frequency bands. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification