audio_s2a
short2alaw(short *&F, alaw *&T) { *T++ = audio_s2a(*F); F++; }
float2alaw(float *&F, alaw *&T) { *T++ = audio_s2a(dbl2long(*F++, 32767)); }
double2alaw(double *&F, alaw *&T) { *T++ = audio_s2a(dbl2long(*F++, 32767)); }
sp = audio_s2a((sr <= -0x2000)? -0x8000 :
sp = audio_s2a((sr <= -0x2000)? -0x8000 :