Encoding the signal with 16 bits

Pat
2012 9 13
1 个回答
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I have a sound wave
I have a code
[f,Fs] = wavread('wolf.wav');
sound(f, Fs);
please tell how to encode the soundwave by 16 bits

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回答（1 个）

Wayne King
Wayne King 2012-9-13
编辑：Wayne King 2012-9-13

0 个投票

Have you tried using the 'native' option when you read the data.
[f,Fs] = wavread('wolf.wav','native');
class(f)

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Pat
Pat 2012-9-13
Thanks Wayne i Tried
[y, fs, nbits]=wavread('wolf.wav');
y0=y*(2^nbits/2)+(2^nbits/2);
but i get class as double ,can u tell where i made mistake plz
Wayne King
Wayne King 2012-9-13
Did you try using the 'native' option as I suggested? See my example.
Pat
Pat 2012-9-13
编辑：Pat 2012-9-13
As per your code the class is int16
[f,Fs] = wavread('wolf.wav','native');
class(f)
i tried by
[f1,Fs1] = wavread('wolf.wav');
y0=f1*32768 ,i get the same values
the minimum and maximum values are same for y0 and f
but the class is different ,i get class as double
i tried this code because i need for 14bit also ,
please help
Pat
Pat 2012-9-14
Thanks walter,for decomposing a soundwave wave by dwt haar wavelet i tried
[c,l] = wavedec(f,1,'Haar');f is my sound signal,is it correct
Walter Roberson
Walter Roberson 2012-9-14
I am not familiar with the wavelet functions.
Pat
Pat 2012-9-15
ok walter Thanks

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Pat
2012-9-13

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