diff --git a/native_client/dotnet/DeepSpeechWPF/.gitignore b/native_client/dotnet/DeepSpeechWPF/.gitignore
new file mode 100644
index 00000000..3e759b75
--- /dev/null
+++ b/native_client/dotnet/DeepSpeechWPF/.gitignore
@@ -0,0 +1,330 @@
+## Ignore Visual Studio temporary files, build results, and
+## files generated by popular Visual Studio add-ons.
+##
+## Get latest from https://github.com/github/gitignore/blob/master/VisualStudio.gitignore
+
+# User-specific files
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+
+# User-specific files (MonoDevelop/Xamarin Studio)
+*.userprefs
+
+# Build results
+[Dd]ebug/
+[Dd]ebugPublic/
+[Rr]elease/
+[Rr]eleases/
+x64/
+x86/
+bld/
+[Bb]in/
+[Oo]bj/
+[Ll]og/
+
+# Visual Studio 2015/2017 cache/options directory
+.vs/
+# Uncomment if you have tasks that create the project's static files in wwwroot
+#wwwroot/
+
+# Visual Studio 2017 auto generated files
+Generated\ Files/
+
+# MSTest test Results
+[Tt]est[Rr]esult*/
+[Bb]uild[Ll]og.*
+
+# NUNIT
+*.VisualState.xml
+TestResult.xml
+
+# Build Results of an ATL Project
+[Dd]ebugPS/
+[Rr]eleasePS/
+dlldata.c
+
+# Benchmark Results
+BenchmarkDotNet.Artifacts/
+
+# .NET Core
+project.lock.json
+project.fragment.lock.json
+artifacts/
+**/Properties/launchSettings.json
+
+# StyleCop
+StyleCopReport.xml
+
+# Files built by Visual Studio
+*_i.c
+*_p.c
+*_i.h
+*.ilk
+*.meta
+*.obj
+*.iobj
+*.pch
+*.pdb
+*.ipdb
+*.pgc
+*.pgd
+*.rsp
+*.sbr
+*.tlb
+*.tli
+*.tlh
+*.tmp
+*.tmp_proj
+*.log
+*.vspscc
+*.vssscc
+.builds
+*.pidb
+*.svclog
+*.scc
+
+# Chutzpah Test files
+_Chutzpah*
+
+# Visual C++ cache files
+ipch/
+*.aps
+*.ncb
+*.opendb
+*.opensdf
+*.sdf
+*.cachefile
+*.VC.db
+*.VC.VC.opendb
+
+# Visual Studio profiler
+*.psess
+*.vsp
+*.vspx
+*.sap
+
+# Visual Studio Trace Files
+*.e2e
+
+# TFS 2012 Local Workspace
+$tf/
+
+# Guidance Automation Toolkit
+*.gpState
+
+# ReSharper is a .NET coding add-in
+_ReSharper*/
+*.[Rr]e[Ss]harper
+*.DotSettings.user
+
+# JustCode is a .NET coding add-in
+.JustCode
+
+# TeamCity is a build add-in
+_TeamCity*
+
+# DotCover is a Code Coverage Tool
+*.dotCover
+
+# AxoCover is a Code Coverage Tool
+.axoCover/*
+!.axoCover/settings.json
+
+# Visual Studio code coverage results
+*.coverage
+*.coveragexml
+
+# NCrunch
+_NCrunch_*
+.*crunch*.local.xml
+nCrunchTemp_*
+
+# MightyMoose
+*.mm.*
+AutoTest.Net/
+
+# Web workbench (sass)
+.sass-cache/
+
+# Installshield output folder
+[Ee]xpress/
+
+# DocProject is a documentation generator add-in
+DocProject/buildhelp/
+DocProject/Help/*.HxT
+DocProject/Help/*.HxC
+DocProject/Help/*.hhc
+DocProject/Help/*.hhk
+DocProject/Help/*.hhp
+DocProject/Help/Html2
+DocProject/Help/html
+
+# Click-Once directory
+publish/
+
+# Publish Web Output
+*.[Pp]ublish.xml
+*.azurePubxml
+# Note: Comment the next line if you want to checkin your web deploy settings,
+# but database connection strings (with potential passwords) will be unencrypted
+*.pubxml
+*.publishproj
+
+# Microsoft Azure Web App publish settings. Comment the next line if you want to
+# checkin your Azure Web App publish settings, but sensitive information contained
+# in these scripts will be unencrypted
+PublishScripts/
+
+# NuGet Packages
+*.nupkg
+# The packages folder can be ignored because of Package Restore
+**/[Pp]ackages/*
+# except build/, which is used as an MSBuild target.
+!**/[Pp]ackages/build/
+# Uncomment if necessary however generally it will be regenerated when needed
+#!**/[Pp]ackages/repositories.config
+# NuGet v3's project.json files produces more ignorable files
+*.nuget.props
+*.nuget.targets
+
+# Microsoft Azure Build Output
+csx/
+*.build.csdef
+
+# Microsoft Azure Emulator
+ecf/
+rcf/
+
+# Windows Store app package directories and files
+AppPackages/
+BundleArtifacts/
+Package.StoreAssociation.xml
+_pkginfo.txt
+*.appx
+
+# Visual Studio cache files
+# files ending in .cache can be ignored
+*.[Cc]ache
+# but keep track of directories ending in .cache
+!*.[Cc]ache/
+
+# Others
+ClientBin/
+~$*
+*~
+*.dbmdl
+*.dbproj.schemaview
+*.jfm
+*.pfx
+*.publishsettings
+orleans.codegen.cs
+
+# Including strong name files can present a security risk
+# (https://github.com/github/gitignore/pull/2483#issue-259490424)
+#*.snk
+
+# Since there are multiple workflows, uncomment next line to ignore bower_components
+# (https://github.com/github/gitignore/pull/1529#issuecomment-104372622)
+#bower_components/
+
+# RIA/Silverlight projects
+Generated_Code/
+
+# Backup & report files from converting an old project file
+# to a newer Visual Studio version. Backup files are not needed,
+# because we have git ;-)
+_UpgradeReport_Files/
+Backup*/
+UpgradeLog*.XML
+UpgradeLog*.htm
+ServiceFabricBackup/
+*.rptproj.bak
+
+# SQL Server files
+*.mdf
+*.ldf
+*.ndf
+
+# Business Intelligence projects
+*.rdl.data
+*.bim.layout
+*.bim_*.settings
+*.rptproj.rsuser
+
+# Microsoft Fakes
+FakesAssemblies/
+
+# GhostDoc plugin setting file
+*.GhostDoc.xml
+
+# Node.js Tools for Visual Studio
+.ntvs_analysis.dat
+node_modules/
+
+# Visual Studio 6 build log
+*.plg
+
+# Visual Studio 6 workspace options file
+*.opt
+
+# Visual Studio 6 auto-generated workspace file (contains which files were open etc.)
+*.vbw
+
+# Visual Studio LightSwitch build output
+**/*.HTMLClient/GeneratedArtifacts
+**/*.DesktopClient/GeneratedArtifacts
+**/*.DesktopClient/ModelManifest.xml
+**/*.Server/GeneratedArtifacts
+**/*.Server/ModelManifest.xml
+_Pvt_Extensions
+
+# Paket dependency manager
+.paket/paket.exe
+paket-files/
+
+# FAKE - F# Make
+.fake/
+
+# JetBrains Rider
+.idea/
+*.sln.iml
+
+# CodeRush
+.cr/
+
+# Python Tools for Visual Studio (PTVS)
+__pycache__/
+*.pyc
+
+# Cake - Uncomment if you are using it
+# tools/**
+# !tools/packages.config
+
+# Tabs Studio
+*.tss
+
+# Telerik's JustMock configuration file
+*.jmconfig
+
+# BizTalk build output
+*.btp.cs
+*.btm.cs
+*.odx.cs
+*.xsd.cs
+
+# OpenCover UI analysis results
+OpenCover/
+
+# Azure Stream Analytics local run output
+ASALocalRun/
+
+# MSBuild Binary and Structured Log
+*.binlog
+
+# NVidia Nsight GPU debugger configuration file
+*.nvuser
+
+# MFractors (Xamarin productivity tool) working folder
+.mfractor/
diff --git a/native_client/dotnet/DeepSpeechWPF/App.config b/native_client/dotnet/DeepSpeechWPF/App.config
new file mode 100644
index 00000000..b50c74f3
--- /dev/null
+++ b/native_client/dotnet/DeepSpeechWPF/App.config
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/native_client/dotnet/DeepSpeechWPF/App.xaml b/native_client/dotnet/DeepSpeechWPF/App.xaml
new file mode 100644
index 00000000..16ebb0d4
--- /dev/null
+++ b/native_client/dotnet/DeepSpeechWPF/App.xaml
@@ -0,0 +1,8 @@
+
+
+
diff --git a/native_client/dotnet/DeepSpeechWPF/App.xaml.cs b/native_client/dotnet/DeepSpeechWPF/App.xaml.cs
new file mode 100644
index 00000000..d4b87d6e
--- /dev/null
+++ b/native_client/dotnet/DeepSpeechWPF/App.xaml.cs
@@ -0,0 +1,42 @@
+using CommonServiceLocator;
+using DeepSpeech.WPF.ViewModels;
+using DeepSpeechClient.Interfaces;
+using GalaSoft.MvvmLight.Ioc;
+using System.Windows;
+
+namespace DeepSpeechWPF
+{
+ ///
+ /// Interaction logic for App.xaml
+ ///
+ public partial class App : Application
+ {
+ protected override void OnStartup(StartupEventArgs e)
+ {
+ base.OnStartup(e);
+ ServiceLocator.SetLocatorProvider(() => SimpleIoc.Default);
+
+ try
+ {
+ //Register instance of DeepSpeech
+ DeepSpeechClient.DeepSpeech deepSpeechClient =
+ new DeepSpeechClient.DeepSpeech("deepspeech-0.8.0-models.pbmm");
+
+ SimpleIoc.Default.Register(() => deepSpeechClient);
+ SimpleIoc.Default.Register();
+ }
+ catch (System.Exception ex)
+ {
+ MessageBox.Show(ex.Message);
+ Current.Shutdown();
+ }
+ }
+
+ protected override void OnExit(ExitEventArgs e)
+ {
+ base.OnExit(e);
+ //Dispose instance of DeepSpeech
+ ServiceLocator.Current.GetInstance()?.Dispose();
+ }
+ }
+}
diff --git a/native_client/dotnet/DeepSpeechWPF/DeepSpeech.WPF.csproj b/native_client/dotnet/DeepSpeechWPF/DeepSpeech.WPF.csproj
new file mode 100644
index 00000000..7f46a31e
--- /dev/null
+++ b/native_client/dotnet/DeepSpeechWPF/DeepSpeech.WPF.csproj
@@ -0,0 +1,140 @@
+
+
+
+
+ Debug
+ AnyCPU
+ {54BFD766-4305-4F4C-BA59-AF45505DF3C1}
+ WinExe
+ DeepSpeech.WPF
+ DeepSpeech.WPF
+ v4.6.2
+ 512
+ {60dc8134-eba5-43b8-bcc9-bb4bc16c2548};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}
+ 4
+ true
+ true
+
+
+
+
+ true
+ bin\x64\Debug\
+ DEBUG;TRACE
+ full
+ AnyCPU
+ prompt
+ MinimumRecommendedRules.ruleset
+ false
+ true
+
+
+ bin\x64\Release\
+ TRACE
+ true
+ pdbonly
+ x64
+ prompt
+ MinimumRecommendedRules.ruleset
+ true
+ true
+
+
+
+ packages\AsyncAwaitBestPractices.3.1.0\lib\netstandard1.0\AsyncAwaitBestPractices.dll
+
+
+ packages\AsyncAwaitBestPractices.MVVM.3.1.0\lib\netstandard1.0\AsyncAwaitBestPractices.MVVM.dll
+
+
+ packages\CommonServiceLocator.2.0.2\lib\net45\CommonServiceLocator.dll
+
+
+ packages\CSCore.1.2.1.2\lib\net35-client\CSCore.dll
+
+
+ packages\MvvmLightLibs.5.4.1.1\lib\net45\GalaSoft.MvvmLight.dll
+
+
+ packages\MvvmLightLibs.5.4.1.1\lib\net45\GalaSoft.MvvmLight.Extras.dll
+
+
+ packages\MvvmLightLibs.5.4.1.1\lib\net45\GalaSoft.MvvmLight.Platform.dll
+
+
+ packages\NAudio.1.9.0\lib\net35\NAudio.dll
+
+
+
+
+
+ packages\MvvmLightLibs.5.4.1.1\lib\net45\System.Windows.Interactivity.dll
+
+
+
+
+
+
+
+
+ 4.0
+
+
+
+
+
+
+
+ MSBuild:Compile
+ Designer
+
+
+
+ MSBuild:Compile
+ Designer
+
+
+ App.xaml
+ Code
+
+
+
+ MainWindow.xaml
+ Code
+
+
+
+
+ Code
+
+
+ True
+ True
+ Resources.resx
+
+
+ True
+ Settings.settings
+ True
+
+
+ ResXFileCodeGenerator
+ Resources.Designer.cs
+
+
+
+ SettingsSingleFileGenerator
+ Settings.Designer.cs
+
+
+
+
+
+
+
+ {56de4091-bbbe-47e4-852d-7268b33b971f}
+ DeepSpeechClient
+
+
+
+
diff --git a/native_client/dotnet/DeepSpeechWPF/DeepSpeech.WPF.sln b/native_client/dotnet/DeepSpeechWPF/DeepSpeech.WPF.sln
new file mode 100644
index 00000000..cd29025e
--- /dev/null
+++ b/native_client/dotnet/DeepSpeechWPF/DeepSpeech.WPF.sln
@@ -0,0 +1,31 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 15
+VisualStudioVersion = 15.0.28307.421
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DeepSpeech.WPF", "DeepSpeech.WPF.csproj", "{54BFD766-4305-4F4C-BA59-AF45505DF3C1}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DeepSpeechClient", "..\DeepSpeechClient\DeepSpeechClient.csproj", "{56DE4091-BBBE-47E4-852D-7268B33B971F}"
+EndProject
+Global
+ GlobalSection(SolutionConfigurationPlatforms) = preSolution
+ Debug|x64 = Debug|x64
+ Release|x64 = Release|x64
+ EndGlobalSection
+ GlobalSection(ProjectConfigurationPlatforms) = postSolution
+ {54BFD766-4305-4F4C-BA59-AF45505DF3C1}.Debug|x64.ActiveCfg = Debug|x64
+ {54BFD766-4305-4F4C-BA59-AF45505DF3C1}.Debug|x64.Build.0 = Debug|x64
+ {54BFD766-4305-4F4C-BA59-AF45505DF3C1}.Release|x64.ActiveCfg = Release|x64
+ {54BFD766-4305-4F4C-BA59-AF45505DF3C1}.Release|x64.Build.0 = Release|x64
+ {56DE4091-BBBE-47E4-852D-7268B33B971F}.Debug|x64.ActiveCfg = Debug|x64
+ {56DE4091-BBBE-47E4-852D-7268B33B971F}.Debug|x64.Build.0 = Debug|x64
+ {56DE4091-BBBE-47E4-852D-7268B33B971F}.Release|x64.ActiveCfg = Release|x64
+ {56DE4091-BBBE-47E4-852D-7268B33B971F}.Release|x64.Build.0 = Release|x64
+ EndGlobalSection
+ GlobalSection(SolutionProperties) = preSolution
+ HideSolutionNode = FALSE
+ EndGlobalSection
+ GlobalSection(ExtensibilityGlobals) = postSolution
+ SolutionGuid = {19C58802-CCEC-4FD1-8D17-A6EB766116F7}
+ EndGlobalSection
+EndGlobal
diff --git a/native_client/dotnet/DeepSpeechWPF/MainWindow.xaml b/native_client/dotnet/DeepSpeechWPF/MainWindow.xaml
new file mode 100644
index 00000000..4fbe5e72
--- /dev/null
+++ b/native_client/dotnet/DeepSpeechWPF/MainWindow.xaml
@@ -0,0 +1,102 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/native_client/dotnet/DeepSpeechWPF/MainWindow.xaml.cs b/native_client/dotnet/DeepSpeechWPF/MainWindow.xaml.cs
new file mode 100644
index 00000000..2c69e9c1
--- /dev/null
+++ b/native_client/dotnet/DeepSpeechWPF/MainWindow.xaml.cs
@@ -0,0 +1,17 @@
+using CommonServiceLocator;
+using DeepSpeech.WPF.ViewModels;
+using System.Windows;
+
+namespace DeepSpeechWPF
+{
+ ///
+ /// Interaction logic for MainWindow.xaml
+ ///
+ public partial class MainWindow : Window
+ {
+ public MainWindow() => InitializeComponent();
+
+ private void Window_Loaded(object sender, RoutedEventArgs e) =>
+ DataContext = ServiceLocator.Current.GetInstance();
+ }
+}
diff --git a/native_client/dotnet/DeepSpeechWPF/Properties/AssemblyInfo.cs b/native_client/dotnet/DeepSpeechWPF/Properties/AssemblyInfo.cs
new file mode 100644
index 00000000..f9ae7d76
--- /dev/null
+++ b/native_client/dotnet/DeepSpeechWPF/Properties/AssemblyInfo.cs
@@ -0,0 +1,55 @@
+using System.Reflection;
+using System.Resources;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+using System.Windows;
+
+// General Information about an assembly is controlled through the following
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("DeepSpeech.WPF")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("DeepSpeech.WPF.SingleFiles")]
+[assembly: AssemblyCopyright("Copyright © 2018")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible
+// to COM components. If you need to access a type in this assembly from
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+//In order to begin building localizable applications, set
+//CultureYouAreCodingWith in your .csproj file
+//inside a . For example, if you are using US english
+//in your source files, set the to en-US. Then uncomment
+//the NeutralResourceLanguage attribute below. Update the "en-US" in
+//the line below to match the UICulture setting in the project file.
+
+//[assembly: NeutralResourcesLanguage("en-US", UltimateResourceFallbackLocation.Satellite)]
+
+
+[assembly: ThemeInfo(
+ ResourceDictionaryLocation.None, //where theme specific resource dictionaries are located
+ //(used if a resource is not found in the page,
+ // or application resource dictionaries)
+ ResourceDictionaryLocation.SourceAssembly //where the generic resource dictionary is located
+ //(used if a resource is not found in the page,
+ // app, or any theme specific resource dictionaries)
+)]
+
+
+// Version information for an assembly consists of the following four values:
+//
+// Major Version
+// Minor Version
+// Build Number
+// Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]
diff --git a/native_client/dotnet/DeepSpeechWPF/Properties/Resources.Designer.cs b/native_client/dotnet/DeepSpeechWPF/Properties/Resources.Designer.cs
new file mode 100644
index 00000000..2da2b4b2
--- /dev/null
+++ b/native_client/dotnet/DeepSpeechWPF/Properties/Resources.Designer.cs
@@ -0,0 +1,63 @@
+//------------------------------------------------------------------------------
+//
+// This code was generated by a tool.
+// Runtime Version:4.0.30319.42000
+//
+// Changes to this file may cause incorrect behavior and will be lost if
+// the code is regenerated.
+//
+//------------------------------------------------------------------------------
+
+namespace DeepSpeech.WPF.Properties {
+ using System;
+
+
+ ///
+ /// A strongly-typed resource class, for looking up localized strings, etc.
+ ///
+ // This class was auto-generated by the StronglyTypedResourceBuilder
+ // class via a tool like ResGen or Visual Studio.
+ // To add or remove a member, edit your .ResX file then rerun ResGen
+ // with the /str option, or rebuild your VS project.
+ [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "15.0.0.0")]
+ [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+ [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+ internal class Resources {
+
+ private static global::System.Resources.ResourceManager resourceMan;
+
+ private static global::System.Globalization.CultureInfo resourceCulture;
+
+ [global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
+ internal Resources() {
+ }
+
+ ///
+ /// Returns the cached ResourceManager instance used by this class.
+ ///
+ [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+ internal static global::System.Resources.ResourceManager ResourceManager {
+ get {
+ if (object.ReferenceEquals(resourceMan, null)) {
+ global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("DeepSpeech.WPF.Properties.Resources", typeof(Resources).Assembly);
+ resourceMan = temp;
+ }
+ return resourceMan;
+ }
+ }
+
+ ///
+ /// Overrides the current thread's CurrentUICulture property for all
+ /// resource lookups using this strongly typed resource class.
+ ///
+ [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+ internal static global::System.Globalization.CultureInfo Culture {
+ get {
+ return resourceCulture;
+ }
+ set {
+ resourceCulture = value;
+ }
+ }
+ }
+}
diff --git a/native_client/dotnet/DeepSpeechWPF/Properties/Resources.resx b/native_client/dotnet/DeepSpeechWPF/Properties/Resources.resx
new file mode 100644
index 00000000..af7dbebb
--- /dev/null
+++ b/native_client/dotnet/DeepSpeechWPF/Properties/Resources.resx
@@ -0,0 +1,117 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ text/microsoft-resx
+
+
+ 2.0
+
+
+ System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
+
+
+ System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
+
+
\ No newline at end of file
diff --git a/native_client/dotnet/DeepSpeechWPF/Properties/Settings.Designer.cs b/native_client/dotnet/DeepSpeechWPF/Properties/Settings.Designer.cs
new file mode 100644
index 00000000..0f464bc4
--- /dev/null
+++ b/native_client/dotnet/DeepSpeechWPF/Properties/Settings.Designer.cs
@@ -0,0 +1,26 @@
+//------------------------------------------------------------------------------
+//
+// This code was generated by a tool.
+// Runtime Version:4.0.30319.42000
+//
+// Changes to this file may cause incorrect behavior and will be lost if
+// the code is regenerated.
+//
+//------------------------------------------------------------------------------
+
+namespace DeepSpeech.WPF.Properties {
+
+
+ [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+ [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "15.9.0.0")]
+ internal sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase {
+
+ private static Settings defaultInstance = ((Settings)(global::System.Configuration.ApplicationSettingsBase.Synchronized(new Settings())));
+
+ public static Settings Default {
+ get {
+ return defaultInstance;
+ }
+ }
+ }
+}
diff --git a/native_client/dotnet/DeepSpeechWPF/Properties/Settings.settings b/native_client/dotnet/DeepSpeechWPF/Properties/Settings.settings
new file mode 100644
index 00000000..033d7a5e
--- /dev/null
+++ b/native_client/dotnet/DeepSpeechWPF/Properties/Settings.settings
@@ -0,0 +1,7 @@
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/native_client/dotnet/DeepSpeechWPF/ViewModels/BindableBase.cs b/native_client/dotnet/DeepSpeechWPF/ViewModels/BindableBase.cs
new file mode 100644
index 00000000..909327ee
--- /dev/null
+++ b/native_client/dotnet/DeepSpeechWPF/ViewModels/BindableBase.cs
@@ -0,0 +1,49 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Runtime.CompilerServices;
+
+namespace DeepSpeech.WPF.ViewModels
+{
+ ///
+ /// Implementation of to simplify models.
+ ///
+ public abstract class BindableBase : INotifyPropertyChanged
+ {
+ ///
+ /// Checks if a property already matches a desired value. Sets the property and
+ /// notifies listeners only when necessary.
+ ///
+ /// Type of the property.
+ /// Reference to a property with both getter and setter.
+ /// Desired value for the property.
+ /// Name of the property used to notify listeners. This
+ /// value is optional and can be provided automatically when invoked from compilers that
+ /// support CallerMemberName.
+ /// True if the value was changed, false if the existing value matched the
+ /// desired value.
+ protected bool SetProperty(ref T backingStore, T value,
+ [CallerMemberName]string propertyName = "",
+ Action onChanged = null)
+ {
+ if (EqualityComparer.Default.Equals(backingStore, value))
+ return false;
+ backingStore = value;
+ onChanged?.Invoke();
+ OnPropertyChanged(propertyName);
+ return true;
+ }
+
+ #region INotifyPropertyChanged
+ ///
+ /// Notifies listeners that a property value has changed.
+ ///
+ /// Name of the property used to notify listeners. This
+ /// value is optional and can be provided automatically when invoked from compilers
+ /// that support .
+ public event PropertyChangedEventHandler PropertyChanged;
+ protected void OnPropertyChanged([CallerMemberName] string propertyName = "")
+ => PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
+ #endregion
+ }
+}
diff --git a/native_client/dotnet/DeepSpeechWPF/ViewModels/MainWindowViewModel.cs b/native_client/dotnet/DeepSpeechWPF/ViewModels/MainWindowViewModel.cs
new file mode 100644
index 00000000..230fd42a
--- /dev/null
+++ b/native_client/dotnet/DeepSpeechWPF/ViewModels/MainWindowViewModel.cs
@@ -0,0 +1,425 @@
+using AsyncAwaitBestPractices.MVVM;
+using CSCore;
+using CSCore.CoreAudioAPI;
+using CSCore.SoundIn;
+using CSCore.Streams;
+using DeepSpeechClient.Interfaces;
+using DeepSpeechClient.Models;
+using GalaSoft.MvvmLight.CommandWpf;
+using Microsoft.Win32;
+using System;
+using System.Collections.Concurrent;
+using System.Collections.ObjectModel;
+using System.Diagnostics;
+using System.IO;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace DeepSpeech.WPF.ViewModels
+{
+ ///
+ /// View model of the MainWindow View.
+ ///
+ public class MainWindowViewModel : BindableBase
+ {
+ #region Constants
+ private const int SampleRate = 16000;
+ private const string ScorerPath = "kenlm.scorer";
+ #endregion
+
+ private readonly IDeepSpeech _sttClient;
+
+ #region Commands
+ ///
+ /// Gets or sets the command that enables the external scorer.
+ ///
+ public IAsyncCommand EnableExternalScorerCommand { get; private set; }
+
+ ///
+ /// Gets or sets the command that runs inference using an audio file.
+ ///
+ public IAsyncCommand InferenceFromFileCommand { get; private set; }
+
+ ///
+ /// Gets or sets the command that opens a dialog to select an audio file.
+ ///
+ public RelayCommand SelectFileCommand { get; private set; }
+
+ ///
+ /// Gets or sets the command that starts to record.
+ ///
+ public RelayCommand StartRecordingCommand { get; private set; }
+
+ ///
+ /// Gets or sets the command that stops the recording and gets the result.
+ ///
+ public IAsyncCommand StopRecordingCommand { get; private set; }
+
+ #endregion
+
+ #region Streaming
+
+ ///
+ /// Stream used to feed data into the acoustic model.
+ ///
+ private DeepSpeechStream _sttStream;
+
+ ///
+ /// Records the audio of the selected device.
+ ///
+ private WasapiCapture _audioCapture;
+
+ ///
+ /// Converts the device source into a wavesource.
+ ///
+ private SoundInSource _soundInSource;
+
+ ///
+ /// Target wave source.(16KHz Mono 16bit for DeepSpeech)
+ ///
+ private IWaveSource _convertedSource;
+
+ ///
+ /// Queue that prevents feeding data to the inference engine if it is busy.
+ ///
+ private ConcurrentQueue _bufferQueue = new ConcurrentQueue();
+
+ private int _threadSafeBoolBackValue = 0;
+
+ ///
+ /// Lock to process items in the queue one at time.
+ ///
+ public bool StreamingIsBusy
+ {
+ get => (Interlocked.CompareExchange(ref _threadSafeBoolBackValue, 1, 1) == 1);
+ set
+ {
+ if (value) Interlocked.CompareExchange(ref _threadSafeBoolBackValue, 1, 0);
+ else Interlocked.CompareExchange(ref _threadSafeBoolBackValue, 0, 1);
+ }
+ }
+
+ #endregion
+
+ #region ViewProperties
+
+ private bool _enableStartRecord;
+ ///
+ /// Gets or sets record status to control the record command.
+ ///
+ public bool EnableStartRecord
+ {
+ get => _enableStartRecord;
+ set => SetProperty(ref _enableStartRecord, value);
+ }
+
+ private bool _stopRecordStopRecord;
+ ///
+ /// Gets or sets record status to control stop command.
+ ///
+ public bool EnableStopRecord
+ {
+ get => _stopRecordStopRecord;
+ set => SetProperty(ref _stopRecordStopRecord, value,
+ onChanged: ()=> ((AsyncCommand)StopRecordingCommand).RaiseCanExecuteChanged());
+ }
+
+ private MMDevice _selectedDevice;
+ ///
+ /// Gets or sets the selected recording device.
+ ///
+ public MMDevice SelectedDevice
+ {
+ get => _selectedDevice;
+ set => SetProperty(ref _selectedDevice, value,
+ onChanged: UpdateSelectedDevice);
+ }
+
+ private string _statusMessage;
+ ///
+ /// Gets or sets status message.
+ ///
+ public string StatusMessage
+ {
+ get => _statusMessage;
+ set => SetProperty(ref _statusMessage, value);
+ }
+
+ private bool _externalScorerEnabled;
+ ///
+ /// Gets or sets the external scorer status.
+ ///
+ private bool ExternalScorerEnabled
+ {
+ get => _externalScorerEnabled;
+ set => SetProperty(ref _externalScorerEnabled, value,
+ onChanged: () => ((AsyncCommand)EnableExternalScorerCommand).RaiseCanExecuteChanged());
+ }
+
+ private bool _isRunningInference;
+ ///
+ /// Gets or sets whenever the model is running inference.
+ ///
+ private bool IsRunningInference
+ {
+ get => _isRunningInference;
+ set => SetProperty(ref _isRunningInference, value,
+ onChanged: () => ((AsyncCommand)InferenceFromFileCommand).RaiseCanExecuteChanged());
+ }
+
+ private string _transcription;
+ ///
+ /// Gets or sets the current transcription.
+ ///
+ public string Transcription
+ {
+ get => _transcription;
+ set => SetProperty(ref _transcription, value);
+ }
+
+ private string _audioFilePaht;
+ ///
+ /// Gets or sets the selected audio file path.
+ ///
+ public string AudioFilePath
+ {
+ get => _audioFilePaht;
+ set => SetProperty(ref _audioFilePaht, value);
+ }
+
+ private ObservableCollection _deviceNames;
+ ///
+ /// Gets or sets the available recording devices.
+ ///
+ public ObservableCollection AvailableRecordDevices
+ {
+ get => _deviceNames;
+ set => SetProperty(ref _deviceNames, value);
+ }
+
+ #endregion
+
+ #region Ctors
+ public MainWindowViewModel(IDeepSpeech sttClient)
+ {
+ _sttClient = sttClient;
+
+ EnableExternalScorerCommand = new AsyncCommand(()=>EnableExternalScorerAsync(ScorerPath),
+ _ => !ExternalScorerEnabled);
+
+ InferenceFromFileCommand = new AsyncCommand(ExecuteInferenceFromFileAsync,
+ _ => !IsRunningInference);
+
+ SelectFileCommand = new RelayCommand(SelectAudioFile);
+
+ StartRecordingCommand = new RelayCommand(StartRecording,
+ canExecute: CanExecuteStartRecording);
+
+ StopRecordingCommand = new AsyncCommand(StopRecordingAsync,
+ _ => EnableStopRecord);
+
+ LoadAvailableCaptureDevices();
+ }
+ #endregion
+
+ ///
+ /// Releases the current capture device and initializes the selected one.
+ ///
+ private void UpdateSelectedDevice()
+ {
+ ReleaseCapture();
+ InitializeAudioCapture();
+ }
+
+ ///
+ /// Releases the capture device.
+ ///
+ private void ReleaseCapture()
+ {
+ if (_audioCapture != null)
+ {
+ _audioCapture.DataAvailable -= Capture_DataAvailable;
+ _audioCapture.Dispose();
+ }
+ }
+ ///
+ /// Command usage to know when the recording can start.
+ ///
+ /// If the device is not null.
+ private bool CanExecuteStartRecording() =>
+ SelectedDevice != null;
+
+ ///
+ /// Loads all the available audio capture devices.
+ ///
+ private void LoadAvailableCaptureDevices()
+ {
+ AvailableRecordDevices = new ObservableCollection(
+ MMDeviceEnumerator.EnumerateDevices(DataFlow.All, DeviceState.Active)); //we get only enabled devices
+ EnableStartRecord = true;
+ if (AvailableRecordDevices?.Count != 0)
+ SelectedDevice = AvailableRecordDevices[0];
+ }
+
+ ///
+ /// Initializes the capture source.
+ ///
+ private void InitializeAudioCapture()
+ {
+ if (SelectedDevice != null)
+ {
+ _audioCapture = SelectedDevice.DataFlow == DataFlow.Capture ?
+ new WasapiCapture() : new WasapiLoopbackCapture();
+ _audioCapture.Device = SelectedDevice;
+ _audioCapture.Initialize();
+ _audioCapture.DataAvailable += Capture_DataAvailable;
+ _soundInSource = new SoundInSource(_audioCapture) { FillWithZeros = false };
+ //create a source, that converts the data provided by the
+ //soundInSource to required format
+ _convertedSource = _soundInSource
+ .ChangeSampleRate(SampleRate) // sample rate
+ .ToSampleSource()
+ .ToWaveSource(16); //bits per sample
+
+ _convertedSource = _convertedSource.ToMono();
+ }
+ }
+
+ private void Capture_DataAvailable(object sender, DataAvailableEventArgs e)
+ {
+ //read data from the converedSource
+ //important: don't use the e.Data here
+ //the e.Data contains the raw data provided by the
+ //soundInSource which won't have the deepspeech required audio format
+ byte[] buffer = new byte[_convertedSource.WaveFormat.BytesPerSecond / 2];
+
+ int read;
+ //keep reading as long as we still get some data
+ while ((read = _convertedSource.Read(buffer, 0, buffer.Length)) > 0)
+ {
+ short[] sdata = new short[(int)Math.Ceiling(Convert.ToDecimal(read / 2))];
+ Buffer.BlockCopy(buffer, 0, sdata, 0, read);
+ _bufferQueue.Enqueue(sdata);
+ Task.Run(() => OnNewData());
+ }
+ }
+
+ ///
+ /// Starts processing data from the queue.
+ ///
+ private void OnNewData()
+ {
+ while (!StreamingIsBusy && !_bufferQueue.IsEmpty)
+ {
+ if (_bufferQueue.TryDequeue(out short[] buffer))
+ {
+ StreamingIsBusy = true;
+ _sttClient.FeedAudioContent(_sttStream, buffer, Convert.ToUInt32(buffer.Length));
+ StreamingIsBusy = false;
+ }
+ }
+ }
+
+ ///
+ /// Enables the external scorer.
+ ///
+ /// External scorer path.
+ /// A Task to await.
+ public async Task EnableExternalScorerAsync(string scorerPath)
+ {
+ try
+ {
+ StatusMessage = "Loading external scorer...";
+ await Task.Run(() => _sttClient.EnableExternalScorer(ScorerPath));
+ ExternalScorerEnabled = true;
+ StatusMessage = "External scorer loaded.";
+ }
+ catch (Exception ex)
+ {
+ StatusMessage = ex.Message;
+ }
+ }
+ ///
+ /// Runs inference and sets the transcription of an audio file.
+ ///
+ /// A Task to await.
+ public async Task ExecuteInferenceFromFileAsync()
+ {
+ try
+ {
+ IsRunningInference = true;
+ Transcription = string.Empty;
+ StatusMessage = "Running inference...";
+ Stopwatch watch = new Stopwatch();
+ var waveBuffer = new NAudio.Wave.WaveBuffer(File.ReadAllBytes(AudioFilePath));
+ using (var waveInfo = new NAudio.Wave.WaveFileReader(AudioFilePath))
+ {
+ watch.Start();
+ string speechResult = await Task.Run(() => _sttClient.SpeechToText(
+ waveBuffer.ShortBuffer,
+ Convert.ToUInt32(waveBuffer.MaxSize / 2)));
+
+ watch.Stop();
+ Transcription = $"Audio duration: {waveInfo.TotalTime.ToString()} {Environment.NewLine}" +
+ $"Inference took: {watch.Elapsed.ToString()} {Environment.NewLine}" +
+ $"Recognized text: {speechResult}";
+ }
+ waveBuffer.Clear();
+ StatusMessage = string.Empty;
+ }
+ catch (Exception ex)
+ {
+ StatusMessage = ex.Message;
+ }
+ finally
+ {
+ IsRunningInference = false;
+ }
+ }
+
+ ///
+ /// Stops the recording and sets the transcription of the closed stream.
+ ///
+ /// A Task to await.
+ private async Task StopRecordingAsync()
+ {
+ EnableStopRecord = false;
+ _audioCapture.Stop();
+ while (!_bufferQueue.IsEmpty && StreamingIsBusy) //we wait for all the queued buffers to be processed
+ {
+ await Task.Delay(90);
+ }
+ Transcription = _sttClient.FinishStream(_sttStream);
+ EnableStartRecord = true;
+ }
+
+ ///
+ /// Creates a new stream and starts the recording.
+ ///
+ private void StartRecording()
+ {
+ _sttStream =_sttClient.CreateStream();
+ _audioCapture.Start();
+ EnableStartRecord = false;
+ EnableStopRecord = true;
+ }
+
+ ///
+ /// Opens a dialog to select an audio file.
+ ///
+ private void SelectAudioFile()
+ {
+ OpenFileDialog dialog = new OpenFileDialog
+ {
+ Filter = "wav Files |*.wav",
+ Multiselect = false,
+ Title = "Please select a wav file."
+ };
+
+ if ((bool)dialog.ShowDialog())
+ {
+ AudioFilePath = dialog.FileName;
+ }
+ }
+ }
+}
\ No newline at end of file
diff --git a/native_client/dotnet/DeepSpeechWPF/packages.config b/native_client/dotnet/DeepSpeechWPF/packages.config
new file mode 100644
index 00000000..ececb977
--- /dev/null
+++ b/native_client/dotnet/DeepSpeechWPF/packages.config
@@ -0,0 +1,9 @@
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/taskcluster/tc-build-utils.sh b/taskcluster/tc-build-utils.sh
index ea592dc0..4d478771 100755
--- a/taskcluster/tc-build-utils.sh
+++ b/taskcluster/tc-build-utils.sh
@@ -272,9 +272,9 @@ do_deepspeech_netframework_build()
/p:Platform=x64
}
-do_deepspeech_netframework_wpf_example_build()
+do_deepspeech_netframework_wpf_build()
{
- cd ${DS_EXAMPLEDIR}/net_framework
+ cd ${DS_DSDIR}/native_client/dotnet
# Setup dependencies
nuget install DeepSpeechWPF/packages.config -OutputDirectory DeepSpeechWPF/packages/
diff --git a/taskcluster/win-build.sh b/taskcluster/win-build.sh
index 48c7a19f..8eb6b0e9 100755
--- a/taskcluster/win-build.sh
+++ b/taskcluster/win-build.sh
@@ -49,7 +49,7 @@ do_deepspeech_nodejs_build "${package_option}"
do_deepspeech_netframework_build
-do_deepspeech_netframework_wpf_example_build
+do_deepspeech_netframework_wpf_build
do_nuget_build "${PROJECT_NAME}"