diff --git a/Correlator/Dialog/AudioFileDialog.xaml b/Correlator/Dialog/AudioFileDialog.xaml
index 3ae1f15..a92bda5 100644
--- a/Correlator/Dialog/AudioFileDialog.xaml
+++ b/Correlator/Dialog/AudioFileDialog.xaml
@@ -29,6 +29,7 @@
     <UserControl.Resources>
         <cvt:EmptyViewConverter x:Key="EmptyViewConverterKey" />
         <cvt:ContentViewConverter x:Key="ContentViewConverterKey" />
+        <cvt:TaskStateConverter x:Key="TaskStateConverterKey" />
     </UserControl.Resources>
 
     <Grid>
@@ -84,26 +85,33 @@
                         Header="名称"
                         IsReadOnly="True" />
                     <DataGridTextColumn
-                        Width="*"
+                        Width="150"
                         Binding="{Binding FileSource}"
                         CanUserResize="False"
                         Foreground="{StaticResource PrimaryTextBrush}"
                         Header="文件来源"
                         IsReadOnly="True" />
                     <DataGridTextColumn
-                        Width="300"
+                        Width="*"
                         Binding="{Binding CreationTime}"
                         CanUserResize="False"
                         Foreground="{StaticResource PrimaryTextBrush}"
                         Header="生成时间"
                         IsReadOnly="True" />
                     <DataGridTextColumn
-                        Width="200"
+                        Width="120"
                         Binding="{Binding FileSize}"
                         CanUserResize="False"
                         Foreground="{StaticResource PrimaryTextBrush}"
                         Header="文件大小"
                         IsReadOnly="True" />
+                    <DataGridTextColumn
+                        Width="150"
+                        Binding="{Binding Duration}"
+                        CanUserResize="False"
+                        Foreground="{StaticResource PrimaryTextBrush}"
+                        Header="时长"
+                        IsReadOnly="True" />
                     <DataGridTemplateColumn
                         Width="180"
                         CanUserResize="False"
@@ -151,5 +159,24 @@
                 </hc:Interaction.Triggers>
             </hc:Pagination>
         </Grid>
+
+        <Grid VerticalAlignment="Center" Visibility="{Binding TaskHasCompleted, Converter={StaticResource TaskStateConverterKey}}">
+            <Grid.RowDefinitions>
+                <RowDefinition />
+                <RowDefinition Height="Auto" />
+            </Grid.RowDefinitions>
+
+            <ProgressBar
+                Grid.Row="0"
+                Width="600"
+                IsIndeterminate="True" />
+
+            <TextBlock
+                Grid.Row="1"
+                Margin="0,10"
+                HorizontalAlignment="Center"
+                FontSize="18"
+                Text="数据加载中，请稍后..." />
+        </Grid>
     </Grid>
 </UserControl>

diff --git a/Correlator/Dialog/AudioFileDialog.xaml b/Correlator/Dialog/AudioFileDialog.xaml
index 3ae1f15..a92bda5 100644
--- a/Correlator/Dialog/AudioFileDialog.xaml
+++ b/Correlator/Dialog/AudioFileDialog.xaml
@@ -29,6 +29,7 @@
     <UserControl.Resources>
         <cvt:EmptyViewConverter x:Key="EmptyViewConverterKey" />
         <cvt:ContentViewConverter x:Key="ContentViewConverterKey" />
+        <cvt:TaskStateConverter x:Key="TaskStateConverterKey" />
     </UserControl.Resources>
 
     <Grid>
@@ -84,26 +85,33 @@
                         Header="名称"
                         IsReadOnly="True" />
                     <DataGridTextColumn
-                        Width="*"
+                        Width="150"
                         Binding="{Binding FileSource}"
                         CanUserResize="False"
                         Foreground="{StaticResource PrimaryTextBrush}"
                         Header="文件来源"
                         IsReadOnly="True" />
                     <DataGridTextColumn
-                        Width="300"
+                        Width="*"
                         Binding="{Binding CreationTime}"
                         CanUserResize="False"
                         Foreground="{StaticResource PrimaryTextBrush}"
                         Header="生成时间"
                         IsReadOnly="True" />
                     <DataGridTextColumn
-                        Width="200"
+                        Width="120"
                         Binding="{Binding FileSize}"
                         CanUserResize="False"
                         Foreground="{StaticResource PrimaryTextBrush}"
                         Header="文件大小"
                         IsReadOnly="True" />
+                    <DataGridTextColumn
+                        Width="150"
+                        Binding="{Binding Duration}"
+                        CanUserResize="False"
+                        Foreground="{StaticResource PrimaryTextBrush}"
+                        Header="时长"
+                        IsReadOnly="True" />
                     <DataGridTemplateColumn
                         Width="180"
                         CanUserResize="False"
@@ -151,5 +159,24 @@
                 </hc:Interaction.Triggers>
             </hc:Pagination>
         </Grid>
+
+        <Grid VerticalAlignment="Center" Visibility="{Binding TaskHasCompleted, Converter={StaticResource TaskStateConverterKey}}">
+            <Grid.RowDefinitions>
+                <RowDefinition />
+                <RowDefinition Height="Auto" />
+            </Grid.RowDefinitions>
+
+            <ProgressBar
+                Grid.Row="0"
+                Width="600"
+                IsIndeterminate="True" />
+
+            <TextBlock
+                Grid.Row="1"
+                Margin="0,10"
+                HorizontalAlignment="Center"
+                FontSize="18"
+                Text="数据加载中，请稍后..." />
+        </Grid>
     </Grid>
 </UserControl>
diff --git a/Correlator/Model/AudioFile.cs b/Correlator/Model/AudioFile.cs
index ed52f99..877a1c7 100644
--- a/Correlator/Model/AudioFile.cs
+++ b/Correlator/Model/AudioFile.cs
@@ -16,6 +16,9 @@
         // 文件尺寸
         public string FileSize { get; set; }
 
+        // 音频时长
+        public string Duration { get; set; }
+
         // 创建时间
         public string CreationTime { get; set; }
     }