Function expSample

include/Oscillator.h:132–140

	}

	static inline sample_t expSample( const float _sample )
	{
		float ph = fraction( _sample );
		if( ph > 0.5f )
		{
			ph = 1.0f - ph;
		}
		return -1.0f + 8.0f * ph * ph;
	}

	static inline sample_t noiseSample( const float )
	{