Update SH functions for ambisonics

src/ITANumericUtils.cpp

@@ -465,21 +465,20 @@ int SHKronecker( const  int m )
 }
 
 
-std::vector<double> SHRealvaluedBasefunctions( const double elevation, const  double azimuth, const int maxOrder )
+std::vector<double> SHRealvaluedBasefunctions( const double elevation_rad, const  double azimuth_rad, const int maxOrder )
 {
 	std::vector<double> Y;
 	Y.resize( ( maxOrder + 1 )*( maxOrder + 1 ) );
-	Y = SHAssociatedLegendre( maxOrder, cos( elevation ) );
+	Y = SHAssociatedLegendre( maxOrder, cos( elevation_rad ) );
 
 	for( int n = 0; n <= maxOrder; n++ )
 	{
-		//Y[SHDegreeOrder2Linear(0,n)]*=Y[SHDegreeOrder2Linear(0,n)]*SHNormalizeConst(0,n);
 		Y[ SHDegreeOrder2Linear( 0, n ) ] *= SHNormalizeConst( 0, n );
 		for( int m = 1; m <= n; m++ )
 		{
 			double Normalizing = SHNormalizeConst( m, n );
-			Y[ SHDegreeOrder2Linear( m, n ) ] *= cos( m*azimuth )*Normalizing;
-			Y[ SHDegreeOrder2Linear( -m, n ) ] *= sin( m*azimuth )*Normalizing;
+			Y[ SHDegreeOrder2Linear( m, n ) ] *= cos( m*azimuth_rad )*Normalizing;
+			Y[ SHDegreeOrder2Linear( -m, n ) ] *= sin( m*azimuth_rad )*Normalizing;
 		}
 	}
 	return Y;