1. Install and Activate the SoundSlides Plugin found here
2. Export your SoundSlides show as a Zip file. Go to File-Export and Zip
3. Create a New Post. Add Appropriate title, tags, category, and other content.
4. Upload your zip file by clicking on the Add Media Link and then selecting Upload Files. Then drag the zip file onto the page to upload it.
5. After the file has uploaded, select the Insert Into Post option.
6. You should have a piece of code inserted in your post that looks like the one below. Note that you might be in the "Text" tab view. You may need to switch to HTML view to add more content.
7. Once you've had success publish the content to your blog.