feat(zita)#: Add parameter struct and helper for easier passing of zi…

…ta parameters around

SharpPipe/Helpers/ParameterHelper.cs

@@ -0,0 +1,27 @@
+namespace SharpPipe;
+
+/// <summary>
+/// Helper class for easier manipulation of parameters
+/// </summary>
+public static class ParameterHelper
+{
+    /// <summary>
+    /// Copies the parameters from one Zita filter implementation to another
+    /// </summary>
+    /// <param name="zita">This Zita filter</param>
+    /// <param name="other">The Zita filter to copy parameters from</param>
+    public static void FromOther(this IZitaFilter zita, in IZitaFilter other)
+    {
+        zita.InDelay = other.InDelay;
+        zita.Crossover = other.Crossover;
+        zita.RT60Low = other.RT60Low;
+        zita.RT60Mid = other.RT60Mid;
+        zita.HighFrequencyDamping = other.HighFrequencyDamping;
+        zita.EQ1Frequency = other.EQ1Frequency;
+        zita.EQ1Level = other.EQ1Level;
+        zita.EQ2Frequency = other.EQ2Frequency;
+        zita.EQ2Level = other.EQ2Level;
+        zita.Mix = other.Mix;
+        zita.Level = other.Level;
+    }
+}

SharpPipe/Structs/ZitaParameters.cs

@@ -0,0 +1,63 @@
+namespace SharpPipe;
+
+
+/// <summary>
+/// Parameter struct that implements the Zita filter interface
+/// </summary>
+public struct ZitaParameters : IZitaFilter
+{
+    /// <summary>
+    /// The input delay (ms) before reverb is applied to the incoming signal (default: 60ms)
+    /// </summary>
+    public float InDelay { get; set; }
+
+    /// <summary>
+    /// The separation between 'high' and 'low' frequencies (default: 200hz)
+    /// </summary>
+    public float Crossover { get; set; }
+
+    /// <summary>
+    /// The time in seconds it takes for low frequencies to decrease by 60dB (default: 3 seconds)
+    /// </summary>
+    public float RT60Low { get; set; }
+
+    /// <summary>
+    /// The time in seconds it takes for mid frequencies to decrease by 60dB (default: 2 seconds)
+    /// </summary>
+    public float RT60Mid { get; set; }
+
+    /// <summary>
+    /// Frequencies (hz) above this one are heard half as long as as the mid-range frequencies - e.g. when their T60 is half of the middle-range's T60 (default: 6000hz)
+    /// </summary>
+    public float HighFrequencyDamping { get; set; }
+
+    /// <summary>
+    ///  The center frequency (hz) of the Regalia Mitra peaking equalizer for the first section (default: 315hz)
+    /// </summary>
+    public float EQ1Frequency { get; set; }
+
+    /// <summary>
+    /// The peak level (dB) of equalizer 1 (default: 0dB)
+    /// </summary>
+    public float EQ1Level { get; set; }
+
+    /// <summary>
+    ///  The center frequency (hz) of the Regalia Mitra peaking equalizer for the second section (default: 1500hz)
+    /// </summary>
+    public float EQ2Frequency { get; set; }
+
+    /// <summary>
+    /// The peak level (dB) of equalizer 2 (default: 0dB)
+    /// </summary>
+    public float EQ2Level { get; set; }
+
+    /// <summary>
+    /// Mixes the wet and dry signals - e.g. 0 is no reverb, 1 is only reverb (default: 1)
+    /// </summary>
+    public float Mix { get; set; }
+
+    /// <summary>
+    /// The factor (dB) to scale the output by (default: -20dB)
+    /// </summary>
+    public float Level { get; set; }
+}