having errors while converting .mat file to .wav file

 x=load('read.mat');
>> f=fieldnames(x);
>> wavwrite(x.(f{1}),8000,'foo.wav')
Warning: Data clipped during write to file:foo.wav
> In wavwrite>PCM_Quantize at 247
  In wavwrite>write_wavedat at 267
  In wavwrite at 112
>>

Answer 1

[Daniel Shub]

Instead of

wavwrite(x.(f{1}),8000,'foo.wav')

try

nBits = 16;
Y = x.(f{1});
Y = Y./max(abs(Y(:)))*(1-(2^-(nBits-1)));
wavwrite(Y,8000,nBits,'foo.wav')

Answer 2

[Daniel Shub]

The error means that at least for one sample either x<-1 or x>1.

EDIT See: http://www.mathworks.com/matlabcentral/answers/17789-why-i-am-gettiing-warning

[tammna abid]

what u really meant by this ? what should i do ? i didnt get u

[Daniel Shub]

See my edit

[tammna abid]

hav seen this , tahnku man , but still getting errors with both methods mention there

[tammna abid]

Sir, i have post my queries there , pls see them

[Daniel Shub]

Thank you equals a vote. I wasn't suggesting you ask in that thread, but rather, that the answer was in the thread.

[tammna abid]

Oh my falut , next time i wont do it ..Thanks !!!