System.Type.GetType C# (CSharp) Method

        public static Type GetType(string typeName)
        {
            foreach (var assembly in AppDomain.CurrentDomain.GetAssemblies())
            {
                var result = assembly.GetType(typeName);
                if (result != null)
                    return result;
            }
            return null;
        }

        public static void CreateComponentIfMissing(Transform t, List <AudioEnvelope> Envelopes)
        {
            foreach (var env in Envelopes)
            {
                System.Type c = null;
                switch (env.filter)
                {
                case AudioEnvelope.FilterType.Highpass:
                    c = typeof(AudioHighPassFilter);
                    break;

                case AudioEnvelope.FilterType.Lowpass:
                    c = typeof(AudioLowPassFilter);
                    break;

                case AudioEnvelope.FilterType.Pitch:
                    c = typeof(AudioSource);
                    break;

                case AudioEnvelope.FilterType.Volume:
                    c = typeof(AudioSource);
                    break;
                }
                if (c != null)
                {
                    var components = t.GetComponents(c.GetType());
                    if (components.Length == 0)
                    {
                        t.gameObject.AddComponent(c.GetType());
                    }
                }
            }
        }