I uploaded a video file where my video guy is telling me what to do. His voice is ever-so-faint in the background. Then it goes to me speaking.
Xound enhanced my video guy's voice and normalised the volume. I could hear him clearly after the editing process was done. It went from a very distant voice, to a normal sounding voice. Then, when it came to me speaking, it removed the 'open room' type reverb noise, and enhanced the sound of my voice.
I like that I can upload the video directly into Xound, which you can't do with the free version of Adobe Podcast (what I've used until now). This makes Xound more efficient. After doing a comparison with another video with background music + lots of background noise (talking, traffic and construction), Adobe Podcast did a much better job at isolating my voice. With Adobe, all background noise was removed, but with Xound, I could still catch bits of music and the occasional sound in the background, and my voice just didn't sound as clean / clear. For ordinary use cases, though, Xound does really well.
I love that it's all processed locally, for privacy reasons.
I'll need to see what resources it uses, as I did notice the fans in my PC (which isn't anything fancy, mind you) fans start ramping up a bit during the processing. I'd love to know if it's using more CPU or GPU, but in any case, it only took a minute or less to process a 5min video in full.
It'd be cool to upload multiple files and work through them one by one, then select each one to review.
One other thing I noticed is that you can revert it to the original if you don't like the edits.
I would suggest, if you're wanting to test how it works on a longer video, to only highlight a small section before doing the full thing. If you're happy with it, process the edits on the full video. Just in case the audio enhancing isn't to your liking, and you need to do it all over again.
It's important to note that the online app doesn't save your files. You upload, you do the edit, then you save / download, then you go back to the home screen and uploading your next video. This, again, emphasises the need to get it right the first time so you don't need to upload it again.
Overall, I'm super glad I bought this. I love it!