how can i add a sin wave of 400hz with a wav format audio file of 44100hz in matlab ??

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MD.FAISAL
MD.FAISAL am 3 Feb. 2013
i want to superimpose a sine wave of 400hz with a WAV file of 44100HZ. please tell me the of doing it in matlab

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John Petersen
John Petersen am 4 Feb. 2013
44100Hz refers to the sampling rate of the WAV file. Is your sine wave sampled at the same rate but is a 400Hz tone? If so, just multiply the two. If not, then you need to add interpolated points so that the two signals have the same number of points before multiplying.

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