Nice work on the voice pack. It’s really cool that you’re sharing it with the community for free. One small suggestion: I noticed a little background noise in some of the sounds. Running them through a noise reduction tool could make them feel much cleaner. I tried that with a free online tool and it worked pretty well.
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I normally use Audacity 's noise reduction filter. first you record just the noise, ie: you dont speak, just record background noise. then you use that file to create a noise profile in Audacity. By using that noise profile you can try to de-noise your actual recordings. It's not perfect but really helps to reduce noise. For a near perfect result you should use so called ai noise reducers. I dont know anything free out there but all the sites have generous trials you can check, even use for production in some cases. the one i have used is called noise-reducer.com