Voice provides all common WordPress post features and functionality, as well as some more cool features and customization which are described below.
Post Options
First go to Theme Options -> Single Post section to manage default settings for your posts.

After setting default options for all posts you can go and edit each particular post separately.
Post Sidebar
Just as for each page, you can set specific sidebar for each post.

Post Formats
This theme also provides support for several built-in post formats, introduced since WordPress version 3.1.
All the posts by default have "Standard" format and it will probably be enough to run classic WordPress blog for most of the users, because it actually supports all the WordPress common features. For something more specific, there are couple of variations.

The best way to learn how to use post formats with this theme is by checking posts in our demo content, but here is a quick guide for each one.
Audio Post
Audio post usually have audio url or embed code at the beginning of your content.

Gallery Post
Gallery post usually have gallery at the beggining of your content. You can add some more content bellow created gallery.

Image Post
Image post consist of featured image only. You can use content editor to add more content if you want.

Video Post
Video post usually have video url or embed code at the beggining of your content. You can add some more content bellow video.

Paginated/Multi-Page Post
This is also a cool WordPress feature which Voice theme supports. You can split your post content into multiple pages with <!--nextpage--> tag and use it as so called "paginated" post with stylish previous/next pagination.

Standard Post - wrapping up
All these format features previously described are of course supported in standard post format as well. So if you want to show mixture of galleries, videos, audios, content, etc... in one single post, you will probably want to use standard post format.
Note:
These were only a few examples of inserting content into your website. If you want to learn more about WordPress embedding features, we suggest you to visit WordPress Embeds Page .
Also, if you are a beginner and not sure how to create or edit posts and use its default features, we suggest you to check and learn from Official WordPress Codex.