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diff --git a/OpenSim/Region/Framework/Interfaces/ISoundModule.cs b/OpenSim/Region/Framework/Interfaces/ISoundModule.cs
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+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using OpenMetaverse;
+
+namespace OpenSim.Region.Framework.Interfaces
+{
+    public interface ISoundModule
+    {
+        /// <summary>
+        /// Maximum distance between a sound source and a recipient.
+        /// </summary>
+        float MaxDistance { get; }
+
+        /// <summary>
+        /// Play a sound from an object.
+        /// </summary>
+        /// <param name="soundID">Sound asset ID</param>
+        /// <param name="ownerID">Sound source owner</param>
+        /// <param name="objectID">Sound source ID</param>
+        /// <param name="gain">Sound volume</param>
+        /// <param name="position">Sound source position</param>
+        /// <param name="flags">Sound flags</param>
+        /// <param name="radius">
+        /// Radius used to affect gain over distance.
+        /// </param>
+        void PlayAttachedSound(UUID soundID, UUID ownerID, UUID objectID,
+                double gain, Vector3 position, byte flags, float radius);
+
+        /// <summary>
+        /// Trigger a sound in the scene.
+        /// </summary>
+        /// <param name="soundId">Sound asset ID</param>
+        /// <param name="ownerID">Sound source owner</param>
+        /// <param name="objectID">Sound source ID</param>
+        /// <param name="parentID">Sound source parent.</param>
+        /// <param name="gain">Sound volume</param>
+        /// <param name="position">Sound source position</param>
+        /// <param name="handle"></param>
+        /// <param name="radius">
+        /// Radius used to affect gain over distance.
+        /// </param>
+        void TriggerSound(
+                UUID soundId, UUID ownerID, UUID objectID, UUID parentID,
+                double gain, Vector3 position, UInt64 handle, float radius);
+
+        /// <summary>
+        /// Stop sounds eminating from an object.
+        /// </summary>
+        /// <param name="objectID">Sound source ID</param>
+        void StopSound(UUID objectID);
+
+        /// <summary>
+        /// Preload sound to viewers within range.
+        /// </summary>
+        /// <param name="objectID">Sound source ID</param>
+        /// <param name="soundID">Sound asset ID</param>
+        /// <param name="radius">
+        /// Radius used to determine which viewers should preload the sound.
+        /// </param>
+        void PreloadSound(UUID objectID, UUID soundID, float radius);
+
+        /// <summary>
+        /// Loop specified sound at specified volume with specified radius,
+        /// optionally declaring object as new sync master.
+        /// </summary>
+        /// <param name="objectID">Sound source ID</param>
+        /// <param name="soundID">Sound asset ID</param>
+        /// <param name="gain">Sound volume</param>
+        /// <param name="radius">Sound radius</param>
+        /// <param name="isMaster">Set object to sync master if true</param>
+        void LoopSound(UUID objectID, UUID soundID, double gain,
+                double radius, bool isMaster);
+
+        /// <summary>
+        /// Trigger or play an attached sound in this part's inventory.
+        /// </summary>
+        /// <param name="objectID">Sound source ID</param>
+        /// <param name="sound">Sound asset ID</param>
+        /// <param name="volume">Sound volume</param>
+        /// <param name="triggered">Triggered or not.</param>
+        /// <param name="radius">Sound radius</param>
+        /// <param name="useMaster">Play using sound master</param>
+        /// <param name="isMaster">Play as sound master</param>
+        void SendSound(UUID objectID, UUID sound, double volume,
+                bool triggered, byte flags, float radius, bool useMaster,
+                bool isMaster);
+
+        /// <summary>
+        /// Trigger a sound to be played to all agents within an axis-aligned
+        /// bounding box.
+        /// </summary>
+        /// <param name="objectID">Sound source ID</param>
+        /// <param name="sound">Sound asset ID</param>
+        /// <param name="volume">Sound volume</param>
+        /// <param name="min">AABB bottom south-west corner</param>
+        /// <param name="max">AABB top north-east corner</param>
+        void TriggerSoundLimited(UUID objectID, UUID sound, double volume,
+                Vector3 min, Vector3 max);
+
+        /// <summary>
+        /// Set whether sounds on the given prim should be queued.
+        /// </summary>
+        /// <param name='objectID'></param>
+        /// <param name='shouldQueue'></param>
+        void SetSoundQueueing(UUID objectID, bool shouldQueue);
+    }
+}
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