getAverageFrequency() {

		let value = 0;
		const data = this.getFrequencyData();

		for ( let i = 0; i < data.length; i ++ ) {

			value += data[ i ];

		}

		return value / data.length;

	}
Returns the average of the frequencies returned by {@link AudioAnalyser#getFrequencyData}.

@return {number} The average frequency.