RichBurg's free sound library.
Library is dynamic, and updating every day.
You can use those sounds non-commercial only.
Dear administrators and creators, with all respect, please, see my account. There is my email and phone number. Before make a decision (like a DMCA request), please call me, or write. I can provide all the documents, from my national passport and vat to signed agreement which gives me the right to distribute sounds and music in the application. I hope for constructive cooperation, thank you!