Windows Store và Voice: Speak trên App Windows Store C#

MainPage.xaml

Windows Store 2017

<Page
    x:Class="Speak.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:Speak"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">

    <Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
        <MediaElement x:Name="mediaElement" HorizontalAlignment="Left" Height="245" VerticalAlignment="Top" Width="385" Margin="10,90,0,0"/>
        <Button x:Name="button" Content="Button" HorizontalAlignment="Left" Margin="310,360,0,0" VerticalAlignment="Top" Click="button_Click"/>
        <TextBox x:Name="tb_speak" HorizontalAlignment="Left" Height="55" Margin="240,250,0,0" TextWrapping="Wrap" Text="Hello World" VerticalAlignment="Top" Width="205"/>

    </Grid>
</Page>

MainPage.xaml.cs

Windows Store 2017

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices.WindowsRuntime;
using Windows.Foundation;
using Windows.Foundation.Collections;
using Windows.Media.SpeechSynthesis;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Controls.Primitives;
using Windows.UI.Xaml.Data;
using Windows.UI.Xaml.Input;
using Windows.UI.Xaml.Media;
using Windows.UI.Xaml.Navigation;

namespace Speak
{
    public sealed partial class MainPage : Page
    {
        public MainPage()
        {
            this.InitializeComponent();
        }

        private async void button_Click(object sender, RoutedEventArgs e)
        {
            var synth = new Windows.Media.SpeechSynthesis.SpeechSynthesizer();
            SpeechSynthesisStream stream = await synth.SynthesizeTextToStreamAsync(tb_speak.Text);
            mediaElement.SetSource(stream, stream.ContentType);
            mediaElement.Play();
        }
    }
}