resampling audio with linear interpolation

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alejandra
alejandra on 29 Sep 2014
Answered: Star Strider on 29 Sep 2014
hi guys, i need your help, i made a program that reduce the sampling from 44100 to 8000 but i need that the audio has the same time with the resampling im aware that the audio its gonna sound different but thats the point the method that i have to use is linear interpolation i made this code that works with the resampling but the sound is weird :c someone help me please...
[s,fs]=wavread('anita.wav');
sound(s,fs);
s1=s;
[x,y]=size(s);
i=1;
j=1;
while i<=x
s2(j,1)=s1(i,1);
s2(j,2)=s1(i,2);
i=i+2;
j=j+1;
end
sound(s2)
wavwrite(s2,'s2.wav');

Answers (1)

Star Strider
Star Strider on 29 Sep 2014
Remember to state the new sampling frequency in you second call to sound this time with ‘s2’. It may sound different because it is defaulting to 8192 Hz.

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