wav format data type in matlab

Hi, I found that data was in int type in wav file, but when I input the wav file into matlab using wavread(), I found that the data was in float type. Can someone tell me why?

Answer 1

[Wayne King]

You most likely did not use the format option available in wavread.m

    [y,fs] = wavread(file,'native');

If omitted, this defaults to double-precision.

[Daniel Shub]

Good answer ...

Answer 2

[Daniel Shub]

You should read the documentation to WAVREAD

doc wavread

You want

[Y,...]=WAVREAD(...,'native')

[Susan]

Yes,thank you. The version of my matlab is 6.0, which doesn't support this format. I update the version to 2010, and the problem had been solved.