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21 lines
1009 B
21 lines
1009 B
function SNR = demoAAC2(fNameIn, fNameOut)
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%Function that demonstrates usage of the level 2 code
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% Usage SNR = demoAAC2(fNameIn, fNameOut), where:
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% Inputs
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% - fNameIn is the filename and path of the file to encode
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% - fNameOut is the filename and path of the file that will be
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% written after decoding
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%
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% Output
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% - SNR is the signal to noise ration computed after successively
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% encoding and decoding the audio signal
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AACSeq2 = AACoder2(fNameIn);
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decodedAudio = iAACoder2(AACSeq2, fNameOut);
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[audioData, ~] = audioread(fNameIn);
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snr(audioData(1025:length(decodedAudio)-1024, 1), audioData(1025:length(decodedAudio)-1024, 1) - decodedAudio(1025:end-1024, 1))
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snr(audioData(1025:length(decodedAudio)-1024, 2), audioData(1025:length(decodedAudio)-1024, 2) - decodedAudio(1025:end-1024, 2))
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SNR = snr(audioData(1025:length(decodedAudio)-1024, :), audioData(1025:length(decodedAudio)-1024, :) - decodedAudio(1025:end-1024, :));
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end
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