The following are possible reasons why there is no audio input or poor quality audio input from your recording device:

Sound Card Driver is not updated

To update the Sound Card Driver:

Incompatible Audio Enhancements

Microsoft and third-party vendors have shipped audio enhancement packages designed to make your system’s specific hardware sound absolutely perfect. These are referred to as Audio Enhancements. But sometimes, these can cause problems with audio and sound. If you face issues with your audio, you may want to disable and see if it helps:

Channel settings

Input device might have a problem with certain channel settings. Try changing channel settings in WavePad (e.g. use Stereo instead of Mono). To change channel settings, click here.

Microphone privacy settings

Your machine may need to grant WavePad access to your input device. To see the settings in Windows:

Wrong device selected

A different recording device may have been selected in WavePad options. To check this, open WavePad recording options by: