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Is it possible to save audio sample values from alteration while using wavwrite function?
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Hello, I am manipulating values of audio samples for audio steganography.When i have my manipulated audio sample object, i want to write it as a new audio file using wavwrite. But when i create object of this newly created audio file, i find sample values different from the previous values of samples which i had manipulated.
Is there any method to control wavwrite function in order to keep my sample values as same as these were before wavwrite?
My original audio object is:
>> y=wavread('C:\Users\HIM\Desktop\audio stegno\strings.wav');
>> y(1:7)
ans =
1.0e-003 *
0
0
-0.2136
0.0916
0.3052
0.3052
0.2136
New audio object created:
>> y2=y;
>> y2(1:7)=0.0005;
>> y2(1:7)
ans =
1.0e-003 *
0.5000
0.5000
0.5000
0.5000
0.5000
0.5000
0.5000
>> wavwrite(y2,44100,'k.wav') >> s=wavread('k.wav'); >> s(1:7)
ans =
1.0e-003 *
0.4883
0.4883
0.4883
0.4883
0.4883
0.4883
0.4883
Values of samples changed in object 's'.
I want that values of samples in 's' should remain same like in 'y2'.
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