Hello Hans,
Please consider the recommendations below to achieve a good audio quality;
Use a good microphone: A good microphone can make a huge difference in the quality of your audio. If you’re using a built-in microphone, consider investing in an external one.
Record in a quiet environment: Background noise can be a major distraction in your audio. Try to record in a quiet room with minimal background noise.
Use a pop filter: A pop filter can help reduce the popping sounds that occur when you say words with “p” and “b” sounds.
Edit your audio: You can use audio editing software to remove background noise, adjust the volume, and improve the overall quality of your audio. Clipchamp has some built-in audio editing features that you can use
https://clipchamp.com/en/blog/audio-editing-hacks/
Regards,