This is the "killer feature." You can tag your text with [happy] , [sad] , or [angry] to modify the inflection. In my test, the sad voice genuinely lowered its pitch and tempo. For audiobook narration, this adds a layer of depth that standard TTS lacks.
Unlike tools where you have to export to a DAW, Speakatoo has a built-in library of royalty-free background tracks. You can layer mood music directly before exporting. It saves about 10 minutes of editing per video. speakatoo.com
Speakatoo uses a credit system (1 credit = 1 character), rather than a monthly subscription for unlimited words. For a 10,000-word ebook, costs add up quickly. Power users might find this expensive compared to unlimited plans elsewhere. This is the "killer feature
While the premium "Neural" voices are excellent (near-human), the standard "Basic" voices still sound robotic. If you sign up for the free trial, you only get access to the basic voices, which makes the platform sound worse than it actually is. You must buy credits to hear the good stuff. Unlike tools where you have to export to