Do I need to credit the creators of the sound effects or SFX Cellar? August 24, 2020 05:56 Updated It's up to you! Any reference to our platform is more than welcome. But it's not mandatory. Related articles Do I receive exclusive use rights for the sound effects I download? Can I use commercially the sound effects I download during the trial period? How long is my SFX Cellar license valid and what does it include? What's the difference between the Premium and mp3 plan? How does the 14-days trial work?