question: public void receive ( float newSample ) { mBuffer . set ( mBufferPointer , newSample ) ; mBufferPointer ++ ; if ( mBufferPointer >= mBufferSize ) { mBufferPointer = 0 ; } float accumulator = 0 ; accumulator += mCoefficients [ mCenterCoefficient ] * mBuffer . get ( mIndexMap [ mBufferPointer ] [ mCenterCoefficientMapIndex ] ) ; for ( int x = 0 ; x < mCenterCoefficientMapIndex ; x += 2 ) { accumulator += mCoefficients [ x ] * ( mBuffer . get ( mIndexMap [ mBufferPointer ] [ x ] ) + mBuffer . get ( mIndexMap [ mBufferPointer ] [ x + 1 ] ) ) ; } if ( mListener != null ) { mListener . receive ( ( float ) ( accumulator * mGain ) ) ; } }
target:  Calculate the filtered value by applying the coefficients against the complex samples in mBuffer