Util class for converting between a linear volume (0..1) and decibel volume in Unity.

VolumeUtils.cs

/**
 * VolumeUtils.cs
 * Author: Luke Holland (http://lukeholland.me/)
 */

using UnityEngine;

public static class VolumeUtils
{

  	public static float ConvertLinearToDB(float linear)
	{
    		return linear<=0 ? -144.0f : 20f * Mathf.Log10(linear);
	}

  	public static float ConvertDBToLinear(float dB)
	{
		return Mathf.Clamp01( Mathf.Pow(10.0f, dB/20.0f) );
	}

}