Video Edit Gold SDK ActiveX

Video Edit Gold SDK ActiveX

Platform : Windows 10, Windows 8, Vista, Windows 7, XP

For Windows Developers who need to add video editing features, slideshow effect, video mixing, audio mixing and add subtitle on video, create subtitle file  with C#, Vb.Net Winforms WPF, VB6, Delphi, Vfp, Adobe Director, MS Access, C++ .

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C# - How to use VS 2019 C# change the audio pitch of video file and save to MP4 file.

Step 1: To install the Video Edit Gold SDK ActiveX, begin by launching the setup file ( Select the desired installation folder for the Video Edit Gold SDK ActiveX and continue with the installation on your development computer.

Step 2: Launch VS 2019, click Create a new project button, then select Windows Forms App(.NET Framework) for C# option , click Next button.

Step 3: In Toolbar, right click the mouse, select Choose Items...

Step 4: select COM Components - select Video Edit Gold ActiveX.

Step 5: drag the Video Edit Gold ActiveX from toolbar to form and create the UI like the following

Step 6: In Open File button 's click event, add the following code,

                this.openFileDialog1.Filter = "All Files (*.*)|*.*|AVCHD (*.m2ts*.m2t,*,mts,*.ts)|*.m2ts;*.m2t;*.mts;*.ts|Flash (*.swf)|*.swf|FLV (*.flv)|*.flv|QuickTime (*.mov) | *.mov|MP4 (*.mp4) | *.mp4|Divx (*.divx) | *.divx|webm (*.webm)|*.webm|3GP (*.3gp) | *.3gp|mpg (*.mpg) | *.mpg|avi (*.avi) | *.avi|wmv (*.wmv)| *.wmv";

                if (this.openFileDialog1.ShowDialog(this) == DialogResult.OK)
                    textBox1.Text = this.openFileDialog1.FileName;
            catch (Exception ex)


Step 7: In Convert button 's click event, add the following code, it will use audio pitch feature and set the audio pitch to 12, the range of pitch is -12 to 12. By default is 0 and save to MP4 file.


            double iDur = Math.Round(this.axVideoEdit1.InfoDuration, 2);

            int iWidth = axVideoEdit1.InfoMediaWidth;
            int iHeight = axVideoEdit1.InfoMediaHeight;
            if ((iWidth == 0) || (iHeight == 0))
                iWidth = 320;
                iHeight = 240;

            this.axVideoEdit1.OutputFileWidth = (short)iWidth;
            this.axVideoEdit1.OutputFileHeight = (short)iHeight;
            this.axVideoEdit1.OutputType = VIDEOEDITLib.MYOUTPUT.MP4;

            this.axVideoEdit1.MP4VideoBitrate = 3000000;
            this.axVideoEdit1.MP4Framerate = 25;
            this.axVideoEdit1.MP4Width = 1280;
            this.axVideoEdit1.MP4Height = 720;

            this.axVideoEdit1.VideoSampleSize = 32;
            this.axVideoEdit1.UseAudioPitch = true;
            this.axVideoEdit1.AudioPitchChangeKey (12);
            this.axVideoEdit1.AddVideo(this.textBox1.Text, 0, iDur, 0);
            this.axVideoEdit1.AddAudio(this.textBox1.Text, 0, iDur);

            this.saveFileDialog1.Filter = "MP4 File (*.mp4)|*.mp4||";
            if (this.saveFileDialog1.ShowDialog(this) == DialogResult.OK)
                bool result = this.axVideoEdit1.Save(this.saveFileDialog1.FileName);


Step 8: In Video Edit Gold ActiveX properties windows, add Complete event. Add the following code

private void AxVideoEdit1_Complete(object sender, EventArgs e)
            MessageBox.Show("Converted Completed");

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