diff --git a/PitchTracker/PitchTracker.vcxproj b/PitchTracker/PitchTracker.vcxproj
index 06c0b94c..bebb9dd6 100644
--- a/PitchTracker/PitchTracker.vcxproj
+++ b/PitchTracker/PitchTracker.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup Label="ProjectConfigurations">
     <ProjectConfiguration Include="Debug|Win32">
       <Configuration>Debug</Configuration>
@@ -28,26 +28,26 @@
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>DynamicLibrary</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v110_xp</PlatformToolset>
+    <PlatformToolset>v140_xp</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>DynamicLibrary</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v110_xp</PlatformToolset>
+    <PlatformToolset>v140_xp</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>DynamicLibrary</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v110_xp</PlatformToolset>
+    <PlatformToolset>v140_xp</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>DynamicLibrary</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v110_xp</PlatformToolset>
+    <PlatformToolset>v140_xp</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
diff --git a/PitchTracker/dywapitchtrack/dywapitchtrack.cpp b/PitchTracker/dywapitchtrack/dywapitchtrack.cpp
index ec17f052..fd72b248 100644
--- a/PitchTracker/dywapitchtrack/dywapitchtrack.cpp
+++ b/PitchTracker/dywapitchtrack/dywapitchtrack.cpp
@@ -26,6 +26,7 @@
 
 #include "dywapitchtrack.h"
 #include <math.h>
+#include <cmath>
 #include <stdlib.h>
 #include <string.h> // for memset
 
diff --git a/Vocaluxe.sln b/Vocaluxe.sln
index 96b931ee..e079a575 100644
--- a/Vocaluxe.sln
+++ b/Vocaluxe.sln
@@ -1,6 +1,6 @@
 Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio 2013
-VisualStudioVersion = 12.0.31101.0
+# Visual Studio 14
+VisualStudioVersion = 14.0.23107.0
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Vocaluxe", "Vocaluxe\Vocaluxe.csproj", "{2A1E0F2D-5392-4BB7-B0A1-A9DFA13E79FF}"
 	ProjectSection(ProjectDependencies) = postProject
@@ -181,6 +181,10 @@ Global
 		{54A48AF7-515C-4EDD-B395-2BFFA096050A}.ReleaseWin|x64.Build.0 = Release|x64
 		{54A48AF7-515C-4EDD-B395-2BFFA096050A}.ReleaseWin|x86.ActiveCfg = Release|Win32
 		{54A48AF7-515C-4EDD-B395-2BFFA096050A}.ReleaseWin|x86.Build.0 = Release|Win32
+		{93356718-3A0B-4784-AAE1-215065BFFC66}.DebugLinux|x64.ActiveCfg = Debug|x64
+		{93356718-3A0B-4784-AAE1-215065BFFC66}.DebugLinux|x64.Build.0 = Debug|x64
+		{93356718-3A0B-4784-AAE1-215065BFFC66}.DebugLinux|x86.ActiveCfg = Debug|x86
+		{93356718-3A0B-4784-AAE1-215065BFFC66}.DebugLinux|x86.Build.0 = Debug|x86
 		{93356718-3A0B-4784-AAE1-215065BFFC66}.DebugWin|x64.ActiveCfg = Debug|x64
 		{93356718-3A0B-4784-AAE1-215065BFFC66}.DebugWin|x64.Build.0 = Debug|x64
 		{93356718-3A0B-4784-AAE1-215065BFFC66}.DebugWin|x86.ActiveCfg = Debug|x86
@@ -189,6 +193,10 @@ Global
 		{93356718-3A0B-4784-AAE1-215065BFFC66}.InstallerWin|x64.Build.0 = Release|x64
 		{93356718-3A0B-4784-AAE1-215065BFFC66}.InstallerWin|x86.ActiveCfg = Release|x86
 		{93356718-3A0B-4784-AAE1-215065BFFC66}.InstallerWin|x86.Build.0 = Release|x86
+		{93356718-3A0B-4784-AAE1-215065BFFC66}.ReleaseLinux|x64.ActiveCfg = Release|x64
+		{93356718-3A0B-4784-AAE1-215065BFFC66}.ReleaseLinux|x64.Build.0 = Release|x64
+		{93356718-3A0B-4784-AAE1-215065BFFC66}.ReleaseLinux|x86.ActiveCfg = Release|x86
+		{93356718-3A0B-4784-AAE1-215065BFFC66}.ReleaseLinux|x86.Build.0 = Release|x86
 		{93356718-3A0B-4784-AAE1-215065BFFC66}.ReleaseWin|x64.ActiveCfg = Release|x64
 		{93356718-3A0B-4784-AAE1-215065BFFC66}.ReleaseWin|x64.Build.0 = Release|x64
 		{93356718-3A0B-4784-AAE1-215065BFFC66}.ReleaseWin|x86.ActiveCfg = Release|x86