Co-produced by Swift and Nathan Chapman, Speak Now will contain 14 tracks, all of which were written solely by Swift. The album will be released on Big Machine Records.
In addition, the first single from the album, "Mine," has been set for an August 16 release.
"These songs are made up of words I didn't say when the moment was right in front of me," Swift said in the live chat. "These songs are open letters. Each is written with a specific person in mind, telling them what I meant to tell them in person."
Swift also announced that Speak Now will be made available for pre-order through SpeakNow13.com on August 20.