< Grid x:Name = " LayoutRoot " Background = " White " >

<!-- 准备3个Silder控件以控制音乐效果 -->

< Slider Height = " 135 " HorizontalAlignment = " Left " Margin = " 62,38,0,0 "

Name = " SlVolume " VerticalAlignment = " Top " Width = " 62 "

Orientation = " Vertical " Maximum = " 1 " Value = " 0.5 " />

< Slider Height = " 135 " HorizontalAlignment = " Left " Margin = " 162,38,0,0 "

Name = " SlPitch " VerticalAlignment = " Top " Width = " 62 "

Orientation = " Vertical " Value = " 0 " Maximum = " 1 " Minimum = " -1 " />

< Slider Height = " 135 " HorizontalAlignment = " Left " Margin = " 262,38,0,0 "

Name = " SlPan " VerticalAlignment = " Top " Width = " 62 "

Orientation = " Vertical " Value = " 0 " Maximum = " 1 " Minimum = " -1 " />

<!-- 显示名称 -->

< TextBlock Height = " 23 " HorizontalAlignment = " Left " Margin = " 71,179,0,0 "

Name = " textBlock1 " Text = " 音量调节 " VerticalAlignment = " Top " />

< TextBlock Height = " 23 " HorizontalAlignment = " Left " Margin = " 166,179,0,0 "

Name = " textBlock2 " Text = " 高低音调节 " VerticalAlignment = " Top " />

< TextBlock Height = " 23 " HorizontalAlignment = " Left " Margin = " 271,179,0,0 "

Name = " textBlock3 " Text = " 声道平衡 " VerticalAlignment = " Top " />

</ Grid >

public MainPage()

{

InitializeComponent();

// 第一步：加载相应的事件

Loaded += new RoutedEventHandler(MainPage_Loaded);

this .SlVolume.ValueChanged +=

new RoutedPropertyChangedEventHandler < double > (SlVolume_ValueChanged);

this .SlPitch.ValueChanged +=

new RoutedPropertyChangedEventHandler < double > (SlPitch_ValueChanged);

this .SlPan.ValueChanged +=

new RoutedPropertyChangedEventHandler < double > (SlPan_ValueChanged);

}

void MainPage_Loaded( object sender, RoutedEventArgs e)

{

GetSound();

}

SoundEffect _soundEffect;

SoundEffectInstance instance;

public void GetSound()

{

// 第二步：加载声音WAV文件

var laserStream =

Application.GetResourceStream( new Uri( " zhizu.wav " , UriKind.RelativeOrAbsolute));

_soundEffect = SoundEffect.FromStream(laserStream.Stream);

// 第三步：设置声音文件初始化播放属性

instance = _soundEffect.CreateInstance();

// Pitch变调效果属性，是高低音平衡调节，该值在-1到1之间设置

instance.Pitch = 0.0f ;

// Pan声像调节属性，它用于调节该路声源在空间的分布图像。

instance.Pan = 0.0f ;

// Volume属性是音量大小调节，该值范围是0-1

instance.Volume = 0.5f ;

instance.Play();

}

private void SlVolume_ValueChanged( object sender,

RoutedPropertyChangedEventArgs < double > e)

{

// 第四步：调节声音属性

instance.Volume = float .Parse(e.NewValue.ToString());

this .textBlock1.Text = " 音量调节 " + e.NewValue.ToString();

}

private void SlPitch_ValueChanged( object sender,

RoutedPropertyChangedEventArgs < double > e)

{

// 第四步：调节声音属性

instance.Pitch = float .Parse(e.NewValue.ToString());

this .textBlock2.Text = " 高低音调节 " + e.NewValue.ToString();

}

private void SlPan_ValueChanged( object sender,

RoutedPropertyChangedEventArgs < double > e)

{

// 第四步：调节声音属性

instance.Pan = float .Parse(e.NewValue.ToString());

this .textBlock3.Text = " 声像调节 " + e.NewValue.ToString();

}

SoundEffectInstance.Pitch

// Pitch变调效果属性，是高低音平衡调节，该值在-1到1之间设置

// 当往-1调节时，即往低音调调节

// 当往+1调节时，即往高音调调节

// 如果是0则正常音高

 

SoundEffectInstance.Volume

// Volume属性是音量大小调节，该值范围是0-1