public virtual int Volume { get; set; }
Public Overridable Property Volume As Integer
A value representing the volume level.
Allowed values range on a logarithmic scale from -10000 to 0. Divide the value by 100 to get the equivalent decibel value. Full volume is 0, and -10000 is silence.
using Leadtools;
using Leadtools.MediaFoundation;
using LeadtoolsMediaFoundationExamples.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 target output file and format
capturectrl.TargetFile = outFile;
capturectrl.TargetFormat = TargetFormatType.MP4;
// 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))
{
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:\LEADTOOLS21\Media";
}
Imports Leadtools
Imports Leadtools.MediaFoundation
Imports LeadtoolsMediaFoundationExamples.Fixtures
Public _result As Boolean = False
Public _form As 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 target output file and format
capturectrl.TargetFile = outFile
capturectrl.TargetFormat = TargetFormatType.MP4
' 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.
While capturectrl.State = CaptureState.Running
Application.DoEvents()
End While
' set the result
_result = File.Exists(outFile)
End If
Catch generatedExceptionName As Exception
_result = False
End Try
End Sub
Public NotInheritable Class LEAD_VARS
Public Const MediaDir As String = "C:\LEADTOOLS21\Media"
End Class
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