diff --git a/SabreTools.Library/DatFiles/Listxml.cs b/SabreTools.Library/DatFiles/Listxml.cs
index 8d857a10..0420673f 100644
--- a/SabreTools.Library/DatFiles/Listxml.cs
+++ b/SabreTools.Library/DatFiles/Listxml.cs
@@ -571,16 +571,23 @@ namespace SabreTools.Library.DatFiles
                         break;
 
                     case "sound":
-                        datItems.Add(new Sound
+                        var sound = new Sound
                         {
-                            Channels = reader.GetAttribute("channels"),
-
                             Source = new Source
                             {
                                 Index = indexId,
                                 Name = filename,
                             },
-                        });
+                        };
+
+                        // Set the channels
+                        if (reader.GetAttribute("channels") != null)
+                        {
+                            if (Int64.TryParse(reader.GetAttribute("channels"), out long channels))
+                                sound.Channels = channels;
+                        }
+
+                        datItems.Add(sound);
 
                         reader.Read();
                         break;
@@ -1666,7 +1673,7 @@ namespace SabreTools.Library.DatFiles
                     case ItemType.Sound:
                         var sound = datItem as Sound;
                         xtw.WriteStartElement("sound");
-                        xtw.WriteOptionalAttributeString("channels", sound.Channels);
+                        xtw.WriteOptionalAttributeString("channels", sound.Channels?.ToString());
                         xtw.WriteEndElement();
                         break;
                 }
diff --git a/SabreTools.Library/DatFiles/SabreDat.cs b/SabreTools.Library/DatFiles/SabreDat.cs
index cecdea8b..b04f9e69 100644
--- a/SabreTools.Library/DatFiles/SabreDat.cs
+++ b/SabreTools.Library/DatFiles/SabreDat.cs
@@ -1644,7 +1644,7 @@ namespace SabreTools.Library.DatFiles
                         var sound = datItem as Sound;
                         xtw.WriteStartElement("file");
                         xtw.WriteAttributeString("type", "sound");
-                        xtw.WriteOptionalAttributeString("channels", sound.Channels);
+                        xtw.WriteOptionalAttributeString("channels", sound.Channels?.ToString());
                         xtw.WriteEndElement();
                         break;
                 }
diff --git a/SabreTools.Library/DatItems/Sound.cs b/SabreTools.Library/DatItems/Sound.cs
index 513559d8..dc2da704 100644
--- a/SabreTools.Library/DatItems/Sound.cs
+++ b/SabreTools.Library/DatItems/Sound.cs
@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Linq;
 
 using SabreTools.Library.Filtering;
@@ -18,7 +19,7 @@ namespace SabreTools.Library.DatItems
         /// Number of channels
         /// </summary>
         [JsonProperty("channels", DefaultValueHandling = DefaultValueHandling.Ignore)]
-        public string Channels { get; set; } // TODO: Int32?
+        public long? Channels { get; set; }
 
         #endregion
 
@@ -35,7 +36,10 @@ namespace SabreTools.Library.DatItems
 
             // Handle Sound-specific fields
             if (mappings.Keys.Contains(Field.DatItem_Channels))
-                Channels = mappings[Field.DatItem_Channels];
+            {
+                if (Int64.TryParse(mappings[Field.DatItem_Channels], out long channels))
+                    Channels = channels;
+            }
         }
 
         #endregion
@@ -102,9 +106,11 @@ namespace SabreTools.Library.DatItems
                 return false;
 
             // Filter on channels
-            if (filter.DatItem_Channels.MatchesPositiveSet(Channels) == false)
+            if (filter.DatItem_Channels.MatchesNeutral(null, Channels) == false)
                 return false;
-            if (filter.DatItem_Channels.MatchesNegativeSet(Channels) == true)
+            else if (filter.DatItem_Channels.MatchesPositive(null, Channels) == false)
+                return false;
+            else if (filter.DatItem_Channels.MatchesNegative(null, Channels) == false)
                 return false;
 
             return true;
diff --git a/SabreTools.Library/Filtering/Filter.cs b/SabreTools.Library/Filtering/Filter.cs
index c51a07b0..9ae7197d 100644
--- a/SabreTools.Library/Filtering/Filter.cs
+++ b/SabreTools.Library/Filtering/Filter.cs
@@ -260,7 +260,7 @@ namespace SabreTools.Library.Filtering
         public FilterItem<string> DatItem_Filter { get; private set; } = new FilterItem<string>();
 
         // Sound
-        public FilterItem<string> DatItem_Channels { get; private set; } = new FilterItem<string>();
+        public FilterItem<long?> DatItem_Channels { get; private set; } = new FilterItem<long?>() { Positive = null, Negative = null, Neutral = null };
 
         #endregion
 
@@ -1574,17 +1574,62 @@ namespace SabreTools.Library.Filtering
 
                 // Sound
                 case Field.DatItem_Channels:
-                    if (negate)
-                        DatItem_Channels.NegativeSet.Add(value);
-                    else
-                        DatItem_Channels.PositiveSet.Add(value);
+                    bool? channelsOperation = null;
+                    if (value.StartsWith(">"))
+                        channelsOperation = true;
+                    else if (value.StartsWith("<"))
+                        channelsOperation = false;
+                    else if (value.StartsWith("="))
+                        channelsOperation = null;
+
+                    string channelsString = value.TrimStart('>', '<', '=');
+                    if (!Int64.TryParse(channelsString, out long channels))
+                        return;
+
+                    // Equal
+                    if (channelsOperation == null && !negate)
+                    {
+                        DatItem_Channels.Neutral = channels;
+                    }
+
+                    // Not Equal
+                    else if (channelsOperation == null && negate)
+                    {
+                        DatItem_Channels.Negative = channels - 1;
+                        DatItem_Channels.Positive = channels + 1;
+                    }
+
+                    // Greater Than or Equal
+                    else if (channelsOperation == true && !negate)
+                    {
+                        DatItem_Channels.Positive = channels;
+                    }
+
+                    // Strictly Less Than
+                    else if (channelsOperation == true && negate)
+                    {
+                        DatItem_Channels.Negative = channels - 1;
+                    }
+
+                    // Less Than or Equal
+                    else if (channelsOperation == false && !negate)
+                    {
+                        DatItem_Channels.Negative = channels;
+                    }
+
+                    // Strictly Greater Than
+                    else if (channelsOperation == false && negate)
+                    {
+                        DatItem_Channels.Positive = channels + 1;
+                    }
+
                     break;
 
-                    #endregion
+                #endregion
 
-                    #endregion // Item-Specific
+                #endregion // Item-Specific
 
-                    #endregion // DatItem Filters
+                #endregion // DatItem Filters
             }
         }