jiema.m

语音PCM编码

function   y=jiema(x)
% 解码
t=length(x);
y=zeros(t,1);
for j=1:t
   for i=6:-1:0
      y(j,1)=y(j,1)+x(j,8-i)*2^i;
   end;
      if x(j,1)==1
      y(j)=y(j)/128;
   else
      y(j)=-y(j)/128;
   end;

end;