how to get what i want from one .wav file

i have 2 .wav format files,s1.wav is combined two sounds ,s2.wav is just the one of it ,how to get the rest of s1 when filterring s2？ plot s1 and s2

Answer 1

[Walter Roberson]

Something like subtract the data in s2 from the data in s1 ?

[Joseph Cheng]

Sound is additive. See http://homepages.udayton.edu/~hardierc/ece203/sound.htm in the section of removing vocals. I just hope that your two waveforms are lined up. If it is then subtraction works but if not a pure subtraction won't get you all the way there.

[Roger]

yes,,and the wav file is online

[Walter Roberson]

online? You mean you are using urlwrite() to retrieve it? That is not going to change the method you use to separate the signals.