Hello people!
I'm trying to implement in the sample code "Playback of a WASAPI capture device" for VB 6.0 of the Active DJ control \ Studio \ Samples \ VB6 \ WasapiInputPlayer to modify the pitch at the same time that the voice is captured by the microphone,
but error "ERR_NOT_LOADED_FOR_MIXING -24 Unsupported" is is being shown. The DirectX and VST effects work fine,
but pitch is not working in several attempts made with SetPitch and SetPitchFloat. Is it possible to make it work with Active DJ Studio in any way at the same time that I speak using the microphone? The version of Active DJ Studio is 8.0.0. Can you give me some tips please? Thank you very much!
Here is the code:
General Declarations
Public tomvoz As Integer
Private Sub Slider1_Change() ''' CHANGE PITCH
tomvoz = Slider1.Value
TextSemitones.Text = tomvoz
Slider1.Text = tomvoz
Dim err As enumErrorCodes
err = Amp3dj1.SetPitch(0, tomvoz)
If err < 0 Then
DisplayError err '''''=> ERR_NOT_LOADED_FOR_MIXING -24 Unsupported
Exit Sub
End If
Amp3dj1.PlaySound 0
End Sub
Private Sub Slider1_Scroll()
Slider1_Change
End Sub
Private Sub ComboCaptureDevices_Click()
' stop the previous capture device
If Amp3dj1.WASAPI.DeviceIsStarted(m_nCurrCaptureDevice, WASAPI_DEVICE_TYPE_CAPTURE) Then
Amp3dj1.WASAPI.DeviceStop m_nCurrCaptureDevice, WASAPI_DEVICE_TYPE_CAPTURE, BOOL_TRUE
End If
' start the device in shared mode
Dim nResult As enumErrorCodes
nResult = Amp3dj1.WASAPI.DeviceStartShared(m_nCurrCaptureDevice, WASAPI_DEVICE_TYPE_CAPTURE, WASAPI_CHANNEL_MODE_STEREO, 0, 0)
If nResult <> ERR_NOERROR Then
MsgBox "Device failed to start due to error " & nResult
Exit Sub
End If
m_nCurrCaptureDevice = ComboCaptureDevices.ListIndex
' get the current volume level for the selected device
Dim fVolume As Single
Amp3dj1.WASAPI.DeviceVolumeGet 0, WASAPI_DEVICE_TYPE_CAPTURE, SCALE_LINEAR, fVolume
SliderVolumeCapture.Value = 100 - fVolume
End Sub
Private Sub CommandStartCapture_Click()
Dim nResult As enumErrorCodes
nResult = Amp3dj1.WASAPI.AttachInputDeviceToPlayer(0, m_nCurrCaptureDevice, WASAPI_DEVICE_TYPE_CAPTURE)
If nResult <> ERR_NOERROR Then
MsgBox "Cannot start playback due to error " & nResult
Exit Sub
End If
Amp3dj1.PlaySound 0
End Sub
Private Sub Form_Load()
' initialize usage of WASAPI audio drivers
Dim nReturn As enumErrorCodes
nReturn = Amp3dj1.InitDriversType(DRIVER_TYPE_WASAPI)
If nReturn = ERR_INVALID_PLATFORM Then
MsgBox "This sample can only work on Windows Vista or higher versions. The program will now close."
End
End If
' verify presence of audio render devices
Dim nOutputs As Integer
Amp3dj1.WASAPI.DeviceGetCount WASAPI_DEVICE_TYPE_RENDER, nOutputs
If nOutputs = 0 Then
MsgBox "No render device detected and/or connected: the program will now close. Jack-sensing could disable an existing sound card if no speaker is physically connected so, if you are sure that a sound card is installed, try to plug a couple of speakers into the sound card before launching again this program."
End
End If
' verify presence of audio capture devices
Dim nInputs As Integer
Amp3dj1.WASAPI.DeviceGetCount WASAPI_DEVICE_TYPE_CAPTURE, nInputs
If nInputs = 0 Then
MsgBox "No capture device detected and/or connected: the program will now close. Jack-sensing could disable an existing sound card if no speaker is physically connected so, if you are sure that a sound card is installed, try to plug a microphone into the sound card before launching again this program."
End
End If
' init the DJ control with system default output device
Amp3dj1.InitDJSystem 1, Me.hwnd, 0, 0, 0, 0
' reduce latency using the minimal buffer length (we add 50 ms for safety): in case of stuttering sound,
' there could be an issue with the sound card's driver not reporting the correct
' minimal allowed buffer length; in order to use this feature, remember to set
' the CheckOutputDevicesLatency property to "True" at design-time
Amp3dj1.BufferLength = Amp3dj1.GetOutputDeviceMinBufferLength(0) + 50
' list and start in shared mode the available render devices
Dim i As Integer
Dim strDevice As String
For i = 0 To nOutputs - 1
strDevice = Amp3dj1.WASAPI.DeviceGetDesc(i, WASAPI_DEVICE_TYPE_RENDER)
ComboRenderDevices.AddItem strDevice
Dim nResult As enumErrorCodes
nResult = Amp3dj1.WASAPI.DeviceStartShared(i, WASAPI_DEVICE_TYPE_RENDER, WASAPI_CHANNEL_MODE_STEREO, 50, 10)
If nResult <> ERR_NOERROR Then
Dim strMsg As String
If nResult = ERR_WASAPI_DEVICE_BUSY Then
strMsg = "Device " & strDevice & " failed to start because already started in exclusive mode by another process - Do you want to continue?"
Else
strMsg = "Device " & strDevice & " failed to start due to error " & nResult & " - Do you want to continue?"
End If
Dim Response
Response = MsgBox(strMsg, vbYesNo)
If Response = vbNo Then
End
End If
End If
Next i
' list the available capture devices
For i = 0 To nInputs - 1
strDevice = Amp3dj1.WASAPI.DeviceGetDesc(i, WASAPI_DEVICE_TYPE_CAPTURE)
ComboCaptureDevices.AddItem strDevice
Next i
' select the current system default devices
ComboRenderDevices.ListIndex = 0
ComboCaptureDevices.ListIndex = 0
m_nCurrRenderDevice = ComboRenderDevices.ListIndex
m_nCurrCaptureDevice = ComboCaptureDevices.ListIndex
' get the current volume level for the selected playback device
Dim fVolume As Single
Amp3dj1.WASAPI.DeviceVolumeGet m_nCurrRenderDevice, WASAPI_DEVICE_TYPE_RENDER, SCALE_LINEAR, fVolume
SliderVolumePlayer.Value = 100 - fVolume
' enable generating VU-Meter events passing 0 to the embedded VU meter
Amp3dj1.VUMeter.Create 0, 0
' create a fancy VU-Meter
m_hWndVuMeterLeft = CreateVuMeter(FrameDevices, PictureVuMeterLeft)
m_hWndVuMeterRight = CreateVuMeter(FrameDevices, PictureVuMeterRight)
Amp3dj1.EnableMixingFeatures = True
TextSemitones.Text = 0#
End Sub
Author
Topic: Change pitch while the voice is captured by the microphone (Read 505 times)