diff --git a/src/NzbDrone.Core.Test/MediaFiles/MediaInfo/MediaInfoFormatterTests/FormatAudioChannelsFixture.cs b/src/NzbDrone.Core.Test/MediaFiles/MediaInfo/MediaInfoFormatterTests/FormatAudioChannelsFixture.cs
new file mode 100644
index 000000000..5de655cd5
--- /dev/null
+++ b/src/NzbDrone.Core.Test/MediaFiles/MediaInfo/MediaInfoFormatterTests/FormatAudioChannelsFixture.cs
@@ -0,0 +1,149 @@
+using FluentAssertions;
+using NUnit.Framework;
+using NzbDrone.Core.MediaFiles.MediaInfo;
+using NzbDrone.Test.Common;
+
+namespace NzbDrone.Core.Test.MediaFiles.MediaInfo.MediaInfoFormatterTests
+{
+    [TestFixture]
+    public class FormatAudioChannelsFixture : TestBase
+    {
+        [Test]
+        public void should_subtract_one_from_AudioChannels_as_total_channels_if_LFE_in_AudioChannelPositionsText()
+        {
+            var mediaInfoModel = new MediaInfoModel
+            {
+                AudioChannels = 6,
+                AudioChannelPositions = null,
+                AudioChannelPositionsText = "Front: L C R, Side: L R, LFE"
+            };
+
+            MediaInfoFormatter.FormatAudioChannels(mediaInfoModel).Should().Be(5.1m);
+        }
+
+        [Test]
+        public void should_use_AudioChannels_as_total_channels_if_LFE_not_in_AudioChannelPositionsText()
+        {
+            var mediaInfoModel = new MediaInfoModel
+            {
+                AudioChannels = 2,
+                AudioChannelPositions = null,
+                AudioChannelPositionsText = "Front: L R"
+            };
+
+            MediaInfoFormatter.FormatAudioChannels(mediaInfoModel).Should().Be(2);
+        }
+
+        [Test]
+        public void should_return_0_if_schema_revision_is_less_than_3_and_other_properties_are_null()
+        {
+            var mediaInfoModel = new MediaInfoModel
+            {
+                AudioChannels = 2,
+                AudioChannelPositions = null,
+                AudioChannelPositionsText = null,
+                SchemaRevision = 2
+            };
+
+            MediaInfoFormatter.FormatAudioChannels(mediaInfoModel).Should().Be(0);
+        }
+
+        [Test]
+        public void should_use_AudioChannels_if_schema_revision_is_3_and_other_properties_are_null()
+        {
+            var mediaInfoModel = new MediaInfoModel
+            {
+                AudioChannels = 2,
+                AudioChannelPositions = null,
+                AudioChannelPositionsText = null,
+                SchemaRevision = 3
+            };
+
+            MediaInfoFormatter.FormatAudioChannels(mediaInfoModel).Should().Be(2);
+        }
+
+        [Test]
+        public void should_sum_AudioChannelPositions()
+        {
+            var mediaInfoModel = new MediaInfoModel
+            {
+                AudioChannels = 2,
+                AudioChannelPositions = "2/0/0",
+                AudioChannelPositionsText = null,
+                SchemaRevision = 3
+            };
+
+            MediaInfoFormatter.FormatAudioChannels(mediaInfoModel).Should().Be(2);
+        }
+
+        [Test]
+        public void should_sum_AudioChannelPositions_including_decimal()
+        {
+            var mediaInfoModel = new MediaInfoModel
+            {
+                AudioChannels = 2,
+                AudioChannelPositions = "3/2/0.1",
+                AudioChannelPositionsText = null,
+                SchemaRevision = 3
+            };
+
+            MediaInfoFormatter.FormatAudioChannels(mediaInfoModel).Should().Be(5.1m);
+        }
+
+        [Test]
+        public void should_cleanup_extraneous_text_from_AudioChannelPositions()
+        {
+            var mediaInfoModel = new MediaInfoModel
+            {
+                AudioChannels = 2,
+                AudioChannelPositions = "Object Based / 3/2/2.1",
+                AudioChannelPositionsText = null,
+                SchemaRevision = 3
+            };
+
+            MediaInfoFormatter.FormatAudioChannels(mediaInfoModel).Should().Be(7.1m);
+        }
+
+        [Test]
+        public void should_skip_empty_groups_in_AudioChannelPositions()
+        {
+            var mediaInfoModel = new MediaInfoModel
+            {
+                AudioChannels = 2,
+                AudioChannelPositions = " / 2/0/0.0",
+                AudioChannelPositionsText = null,
+                SchemaRevision = 3
+            };
+
+            MediaInfoFormatter.FormatAudioChannels(mediaInfoModel).Should().Be(2);
+        }
+
+        [Test]
+        public void should_sum_first_series_of_numbers_from_AudioChannelPositions()
+        {
+            var mediaInfoModel = new MediaInfoModel
+            {
+                AudioChannels = 2,
+                AudioChannelPositions = "3/2/2.1 / 3/2/2.1",
+                AudioChannelPositionsText = null,
+                SchemaRevision = 3
+            };
+
+            MediaInfoFormatter.FormatAudioChannels(mediaInfoModel).Should().Be(7.1m);
+        }
+
+        [Test]
+        public void should_sum_dual_mono_representation_AudioChannelPositions()
+        {
+            var mediaInfoModel = new MediaInfoModel
+            {
+                AudioChannels = 2,
+                AudioChannelPositions = "1+1",
+                AudioChannelPositionsText = null,
+                SchemaRevision = 3
+            };
+
+            MediaInfoFormatter.FormatAudioChannels(mediaInfoModel).Should().Be(2.0m);
+        }
+    }
+}
diff --git a/src/NzbDrone.Core.Test/NzbDrone.Core.Test.csproj b/src/NzbDrone.Core.Test/NzbDrone.Core.Test.csproj
index a887a3346..f28437013 100644
--- a/src/NzbDrone.Core.Test/NzbDrone.Core.Test.csproj
+++ b/src/NzbDrone.Core.Test/NzbDrone.Core.Test.csproj
@@ -253,6 +253,7 @@
     <Compile Include="MediaFiles\DownloadedAlbumsCommandServiceFixture.cs" />
     <Compile Include="MediaFiles\DownloadedTracksImportServiceFixture.cs" />
     <Compile Include="MediaFiles\MediaFileDeletionService\DeleteTrackFileFixture.cs" />
+    <Compile Include="MediaFiles\MediaInfo\MediaInfoFormatterTests\FormatAudioChannelsFixture.cs" />
     <Compile Include="MediaFiles\MediaInfo\MediaInfoFormatterTests\FormatAudioCodecFixture.cs" />
     <Compile Include="MediaFiles\TrackFileMovingServiceTests\MoveTrackFileFixture.cs" />
     <Compile Include="MediaFiles\TrackImport\ImportDecisionMakerFixture.cs" />