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METHOD AND APPARATUS FOR ACTIVE AUDIO MATRIX DECODING BASED ON THE POSITION OF SPEAKER AND LISTENER
METHOD AND APPARATUS FOR ACTIVE AUDIO MATRIX DECODING BASED ON THE POSITION OF SPEAKER AND LISTENER
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机译:基于说话者和听众位置的主动音频矩阵解码方法和装置
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摘要
A method and an apparatus for decoding an active audio matrix based on positions of a speaker and a listener are provided to recover a sound image distorted due to variation of the positions of the listener to a desired original sound image through signal correction. A method for decoding an active audio matrix includes the steps of: extracting a characteristic of each speaker signal and each speaker angle from a predetermined signal generated by a multi-channel speaker(1008); decoding stereo signals into multi-channel signals(1010) and correcting the decoded multi-channel signals based on the characteristic of the signal for each channel(1014); extracting a power vector of a signal for each channel by reflecting the speaker angle of each channel to a size of each compensated channel(1020) and extracting a vector of a virtual sound source existing between the channels based on the power vector of the signal for each channel(1030); extracting a vector value of a dominant sound image by coupling the extracted vectors of the virtual sound sources in the above-described process(1040) and normalizing a location of each channel speaker based on the vector value of the dominant sound image(1050); and distributing a gain value to the normalized location of the speaker for each channel by comparing a signal intensity of each channel with a signal intensity of the entire decoded channel(1060).
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