METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL
First Claim
1. A method of controlling an audio signal in a decoding apparatus of an audio signal, comprising:
- receiving an input signal and reference information controlling a volume of the input signal; and
adjusting a volume of the input signal with the reference information, wherein the reference information comprises at least one of metadata indicating characteristics of the input signal, output environment information indicating characteristics of an environment in proximity to the apparatus and stored reference information being transmitted from memory.
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Abstract
An apparatus for controlling a volume of an audio signal and method thereof are disclosed, by which a volume of an input signal can be controlled by using a non-linear gain curve and a target volume of the input signal. The present invention includes receiving an input signal and reference information controlling a volume of the input signal; and adjusting a volume of the input signal with the reference information, wherein the reference information comprises at least one of metadata indicating characteristics of the input signal, output environment information indicating characteristics of an environment in proximity to the apparatus and stored reference information being transmitted from memory.
Therefore, the present invention is able to control a volume of an input signal adaptively by using reference information, for example metadata, outside environment information and stored reference information.
24 Citations
15 Claims
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1. A method of controlling an audio signal in a decoding apparatus of an audio signal, comprising:
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receiving an input signal and reference information controlling a volume of the input signal; and adjusting a volume of the input signal with the reference information, wherein the reference information comprises at least one of metadata indicating characteristics of the input signal, output environment information indicating characteristics of an environment in proximity to the apparatus and stored reference information being transmitted from memory. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus of controlling an audio signal, comprising:
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a volume determining unit measuring a volume of input signal; a reference information measuring unit measuring a reference volume from reference information to adjust the volume of the input signal; a memory storing previously inputted information; a timer measuring replay time of the input signal or present time; and a volume control unit adjusting the volume of the input signal by using the reference volume, wherein the reference information comprises at least one of metadata indicating characteristics of the input signal, output environment information indicating characteristics of an environment in proximity to the apparatus and stored reference information being transmitted from memory. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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Specification