Balance Property (CaptureCtrl)

Visual Basic
C#
C++/CLI

'Declaration
 
Public Overridable Property Balance As Integer

'Usage
 
Dim instance As CaptureCtrl
Dim value As Integer
 
instance.Balance = value
 
value = instance.Balance

public virtual int Balance {get; set;}

public:
virtual property int Balance {
   int get();
   void set (    int value);
}

Property Value

A value representing the balance.

Allowed values range from -10000 to 10000, where -10000 indicates that the right channel will receive no signal, 10000 indicates that the left channel will receive no signal, and 0 indicates that both channels will get the same amount of the audio signal. This property applied on the preview output only, the audio stream in the captured content will not be affected.

Visual Basic
C#
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Copy Code

Imports Leadtools
Imports Leadtools.Multimedia
Imports LeadtoolsMultimediaExamples.Fixtures

Public _result As Boolean = False
Public _form As CaptureCtrlForm = New CaptureCtrlForm()
Public Sub CaptureAudioExample()
   ' reference the capture control
   Dim capturectrl As CaptureCtrl = _form.CaptureCtrl

   ' output file for capture
   Dim outFile As String = Path.Combine(LEAD_VARS.MediaDir, "CaptureCtrl_CaptureAudioExample.mp3")

   Try
      ' select a audio capture device
      If capturectrl.AudioDevices("USB") Is Nothing Then
         Throw New Exception("No USB audio device available")
      End If

      capturectrl.AudioDevices("USB").Selected = True

      ' set the audio compressor
      capturectrl.AudioCompressors.AC3.Selected = True

      ' set the target output file and format
      capturectrl.TargetFile = outFile
      capturectrl.TargetFormat = TargetFormatType.MP3

      ' unmute the audio, balanced and full volume
      capturectrl.Mute = False
      capturectrl.Balance = 0
      capturectrl.Volume = 0

      ' check if we have can capture audio
      If capturectrl.IsModeAvailable(CaptureMode.Audio) Then
         capturectrl.TimeLimit = 5 ' just 5 seconds of capture time
         capturectrl.UseTimeLimit = True

         ' start the capture process
         capturectrl.StartCapture(CaptureMode.Audio)

         ' we'll loop on the state and pump messages for this example.
         ' but you should not need to if running from a Windows Forms application.
         Do While capturectrl.State = CaptureState.Running
            Application.DoEvents()
         Loop

         ' set the result
         _result = File.Exists(outFile)
      End If
   Catch e1 As Exception
      _result = False
   End Try
End Sub

Public NotInheritable Class LEAD_VARS
Public Const MediaDir As String = "C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 18\Media"
End Class

using Leadtools;
using Leadtools.Multimedia;
using LeadtoolsMultimediaExamples.Fixtures;

public bool _result = false;
public CaptureCtrlForm _form = new CaptureCtrlForm();
public void CaptureAudioExample()
{
   // reference the capture control
   CaptureCtrl capturectrl = _form.CaptureCtrl;

   // output file for capture
   string outFile = Path.Combine(LEAD_VARS.MediaDir,"CaptureCtrl_CaptureAudioExample.mp3");

   try
   {
      // select a audio capture device
      if (capturectrl.AudioDevices["USB"] == null)
         throw new Exception("No USB audio device available");

      capturectrl.AudioDevices["USB"].Selected = true;

      // set the audio compressor
      capturectrl.AudioCompressors.AC3.Selected = true;

      // set the target output file and format
      capturectrl.TargetFile = outFile;
      capturectrl.TargetFormat = TargetFormatType.MP3;

      // unmute the audio, balanced and full volume
      capturectrl.Mute = false;
      capturectrl.Balance = 0;
      capturectrl.Volume = 0;

      // check whether we can capture audio
      if (capturectrl.IsModeAvailable(CaptureMode.Audio))
      {
         capturectrl.TimeLimit = 5;      // just 5 seconds of capture time
         capturectrl.UseTimeLimit = true;

         // start the capture process
         capturectrl.StartCapture(CaptureMode.Audio);

         // we'll loop on the state and pump messages for this example.
         // but you should not need to if running from a Windows Forms application.
         while (capturectrl.State == CaptureState.Running)
            Application.DoEvents();

         // set the result
         _result = File.Exists(outFile);
      }
   }
   catch (Exception)
   {
      _result = false;
   }
}

static class LEAD_VARS
{
public const string MediaDir = @"C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 18\Media";
}

Target Platforms

Reference

CaptureCtrl Class
CaptureCtrl Members