Greetings.
here is the fixed version of the file.
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Though, there are few possible causes of a noisy output.
1, noisy samples.
2, usage of certain algorithms and the sinthisise method.
3, used hardware.
If there is a chance to record samples in an isolated environment, you will get better results.
But if its not can be done, I can able to provide files in the same quality as in the link below.
If you like the fixed version, you can send me a message and we can talk more about your project.
have a great day.