I adjusted the guitar track to 0.75, and the crowd-noise track to 0.8: Here's the same mix, only this time I set Volume adjustment keyframes on the first frame of each clip (so the value applies for the entire length of the clip). The trick is to simply reduce the volume of both tracks, so that they don't push each other beyond max amplitude when mixed together. So it's no surprise that when we mix in another fairly loud track at full volume, the clipping increases drastically: (The red lines represent clipping, with View > Show Clipping enabled.) Loading the guitar track into Audacity, you can see that it's already clipping some, and that's without any other tracks mixed in: Especially if either or both of them are already close to or at the limits of their amplitude range. If you're mixing two audio sources together at full volume, clipping is a likely result. I know there is already an issue about this problem, but I wanted be more specific, in my report, provide steps and files for you to work with. Operating System / Distro: Windows 10 Pro 圆4.I expect the audio in the exported file to sound the same way as in the timeline. Play back the exported file - you will hear pretty bad audio clipping, especially with the drum beats. Now export video: H265, profile HD 1080p 25 fps, quality "med", on the Advanced tab: start frame 1, end frame 500 (so you export only 20 seconds, we do not need more) Play back first 20 secs of the timeline - you can hear that all sounds good in the OpenShot. Put celebration to track 4 and the music to track 5. Import them into a new project in OpenShot 2.5.0 But audible clipping is in the export file. When I add music to our birthday celebration, it all sounds good while played back on the timeline.
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