Sometimes when you record business videos the audio quality leaves much to be desired. It may be because of the fact that most cameras have mediocre built-in microphones at best, or it may just be that there was a lot of background noise at the time.
In any case if the audio quality is poor that’s going to destract from your entire business video – which is undoubtedly the last thing you want. As such, your best bet would be to remove the sound entirely, so that you can then replace it with a new track instead. Although that may sound hard, it is actually pretty easy to pull off with Movavi Video Editor.