• Voice-Overs, record a voice over for your audio files (WAV, MP3 file).
• Display waveform from microphone and Display waveform from background audio file when when Voice-Overs. 
• Enable/Disable Continue Recording when Voice-Overs, the background audio files has come to an end. 
• Capture audio from selected audio device.
• Capture audio to Wave, WMA, MP3 file format.
• Capture audio from selected audio input pin. for example, online streaming audio, radio, audio players (e.g. Media Player, WinAmp, Real Player ), Line In , Microphone, Stereo Mix, Mono Mix, Aux, Video, CD Audio, Phone Line.
• display waveforms of playback and recorded sound, attempting to follow the original sound played (like a karaoke). 
• user can record sound via the microphone
• Support Playback wav, mp3, mpg, avi file and display waveform graph.
• Allow display waveform with left, right channel.
• Customizable the waveform allow you to change the background color, left/right channel's waveform color, offset, divisor of waveform.
• Allow display floating popup waveform window or child style of waveform window.
• Support multiple audio devices and mixer lines.
• Adjust volume level for mixer line.
• Change the audio pitch to male, female child voices.
• Pause or Resume when recording.
• Include C# 2019, C# 2010, VB.NET 2019, VB.NET 2010, VB6, VC Sample source code.
• Royalty free distribution of the OCX file.
• Compatible with any programming language that supports ActiveX (Access, Visual C , Visual Basic , Visual Foxpro, Delphi, .Net, etc.)