How to speed up and slow down a video while maintaining a good audio quality
I have several composite shots with animations and voiceovers and I would like to speed up or slow the animation and the corresponding voiceovers. If I do it like it is for example explained in this video https://www.youtube.com/watch?v=UBAjyoe_jD4&ab_channel=RaqibZaman by using the "SpeedUp and Duration" menu, the voiceover sounds ridiciously unrealistic and bad. When speeding it up for only 10 % the voiceover have an unrealisticly high pitch which sounds quite unnatural. And vice versa, when slowing down the voiceovers they have an unrealisticly low pitch which also sounds quite bad.
If you, for example, change the speed of videos in Youtube, the audio quality remains quite good and the pitch of the voice does not change drastically, even when speeding it up (or slowing down) for more than 50 %.
Does anyone have any idea how I can change the speed of the video while still having a realistic and natural pitch of the voiceovers?