Spectrogram approximation.












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$begingroup$


Say we have a discrete signal S, we derive another one, which is four-times the length S_hat = INTERPOLATE(S, mode = "linear") and we have STFT = short time fourier transformation(filter length = 512, hop = 32).



len(S) = n

len(S_hat) = 4*n



What is the best approximation of STFT(S_hat) we can get from only STFT(S)?










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$endgroup$

















    0












    $begingroup$


    Say we have a discrete signal S, we derive another one, which is four-times the length S_hat = INTERPOLATE(S, mode = "linear") and we have STFT = short time fourier transformation(filter length = 512, hop = 32).



    len(S) = n

    len(S_hat) = 4*n



    What is the best approximation of STFT(S_hat) we can get from only STFT(S)?










    share|cite|improve this question









    $endgroup$















      0












      0








      0





      $begingroup$


      Say we have a discrete signal S, we derive another one, which is four-times the length S_hat = INTERPOLATE(S, mode = "linear") and we have STFT = short time fourier transformation(filter length = 512, hop = 32).



      len(S) = n

      len(S_hat) = 4*n



      What is the best approximation of STFT(S_hat) we can get from only STFT(S)?










      share|cite|improve this question









      $endgroup$




      Say we have a discrete signal S, we derive another one, which is four-times the length S_hat = INTERPOLATE(S, mode = "linear") and we have STFT = short time fourier transformation(filter length = 512, hop = 32).



      len(S) = n

      len(S_hat) = 4*n



      What is the best approximation of STFT(S_hat) we can get from only STFT(S)?







      fourier-transform






      share|cite|improve this question













      share|cite|improve this question











      share|cite|improve this question




      share|cite|improve this question










      asked Dec 14 '18 at 15:37









      KruegerKrueger

      1011




      1011






















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