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MDCT in Audio Processing

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adavappa

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Hi, I am doing some audio processing with an audio file of .wav format. I want to apply MDCT(Modified Discrete Cosine Transform) to a set of samples (for example say 512 samples in 1 set) for this I am using the formula which is available directly on this link (formula for Xk given in the definition section ). But, I am not getting the desired output from this formula. I would appreciate if any one provide me the proper algorithm for MDCT used in the audio encoding algorithm. Thanks . :roll:
 

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