Thank you for your question. The /dir at the end of the domain name is the directory you installed wordpress in, and the web address. To install on the root of a domain (http://soundstreet.us) using Softaculous, leave the "In Directory" option blank.
You can also move Wordpress directly to the public_html folder.
If you have any further questions, feel free to post them below, or contact live Tech Support.
They are available 24/7 via:
Phone: 877-595-4482 x2
Chat (there is a link on the top right).
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