The correct wither spawn sound ID is: 1023

// CraftBukkit start - Use relative location for far away sounds
// this.world.a(1023, new BlockPosition(this), 0);
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if (distanceSquared > viewDistance * viewDistance)

{ double deltaLength = Math.sqrt(distanceSquared); double relativeX = player.locX + (deltaX / deltaLength) * viewDistance; double relativeZ = player.locZ + (deltaZ / deltaLength) * viewDistance; player.playerConnection.sendPacket(new PacketPlayOutWorldEvent(1013, new BlockPosition((int) relativeX, (int) this.locY, (int) relativeZ), 0, true)); }

else

{ player.playerConnection.sendPacket(new PacketPlayOutWorldEvent(1013, new BlockPosition((int) this.locX, (int) this.locY, (int) this.locZ), 0, true)); }

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// CraftBukkit end