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refactoring

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This commit is contained in:
Jean-Marc Valin 2018-12-28 01:19:56 -05:00
parent 293f76ee33
commit d75a4aec72
3 changed files with 26 additions and 29 deletions
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23
dnn/lpcnet.c
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@ -56,29 +56,6 @@ struct LPCNetState {
};
static float ulaw2lin(float u)
{
float s;
float scale_1 = 32768.f/255.f;
u = u - 128;
s = u >= 0 ? 1 : -1;
u = fabs(u);
return s*scale_1*(exp(u/128.*log(256))-1);
}
static int lin2ulaw(float x)
{
float u;
float scale = 255.f/32768.f;
int s = x >= 0 ? 1 : -1;
x = fabs(x);
u = (s*(128*log(1+scale*x)/log(256)));
u = 128 + u;
if (u < 0) u = 0;
if (u > 255) u = 255;
return (int)floor(.5 + u);
}
#if 0
static void print_vector(float *x, int N)
{