Hello! I can help you to cut your sound files on exactly 4 seconds.
I'm professional sound editor, and I had done many similar projects.
As a sound engineer I worked in 5 feature films.
I would like to make this project for you.
I know you will be satisfied with the result. I am ready to start immediately.
If you are interested, please get back to me with more details
and send me your project materials.
Have a nice day!