Text to Speech with Lifelike AI Voices

Write a script for the ear

Listeners cannot skim back, so write short sentences with one idea each. Read the draft aloud once before you generate it; anywhere you stumble, the voice will sound unsure too.

Write the way you speak. Contractions such as "you're" sound warmer than "you are". Punctuation sets the pace: a comma gives a short breath, a full stop a longer one, and [pause] a full beat before a reveal.

Open strong. The first sentence of a voiceover decides whether people keep listening, so lead with the benefit or the question and save the details for the second line.

Direct the delivery with tags and settings

A voice sounds most human when the delivery changes with the words. Tags tell the voice what to do at one exact moment, and the delivery setting colours the whole script.

1. 1Type [pause] before a reveal, a price or the answer to a question, so the listener has a beat to lean in.
2. 2Add [laughs] after a joke or a light line. One laugh a minute feels natural and keeps the moment special.
3. 3Pick calm for lessons and meditations, happy for product launches and surprised for a twist in a story. Leave delivery on Auto when the script already carries the mood.
4. 4Slow the speed a little for instructions and new terms, and raise it for a promo that should feel energetic.

Change one tag or setting at a time and play the line again. You hear exactly what each change does, and the next script starts from settings you trust.

Numbers, names and pronunciation

Numbers are read the way most people say them, but help the engine with anything unusual. Write "two lattes for five dollars" rather than "2 lattes 4 $5", and spell out web addresses the way you want them heard.

For a tricky brand name, try a phonetic spelling and keep the one that sounds right.

Dates, units and short forms read best written out: "March third" rather than "3/3", "ten kilometres" rather than "10km". Put spaces between the letters of an acronym, such as "A P I", when each letter should be heard, and write it as one word when it is said as a word.

Choose the right AI text to speech voice

Match the voice to the listener, then keep it. Listeners recognise a channel or a course by its voice, so one voice per series builds familiarity from the first episode.

1. 1Documentaries and explainers: a deep, unhurried narrator who leaves room between ideas.
2. 2Product videos and ads: a bright, quick voice with a smile in it.
3. 3Courses and training: a clear presenter at a steady pace.
4. 4Audiobooks and stories: a warm storyteller, plus a second voice with a clearly different age or accent for dialogue.

Want something the library does not have? Describe a voice such as "a warm grandmother in her seventies, soft and slow", or clone your own from a short recording, and use it like any other voice.

Long scripts: audiobooks, courses and articles

Each run reads up to 5,000 characters, so a long text to speech project is a series of runs in the same voice. Planning the split keeps a whole book or course sounding like one session.

1. 1Split at natural breaks such as chapters, lessons or scenes, and keep each paragraph whole.
2. 2Use the same voice, delivery and speed for every part, and note them at the top of your script.
3. 3Name each download by its order, such as 01 Introduction, so the files line up in your editor.
4. 4Listen to the first minute of each part before you move on; an early fix keeps every later part on track.

Text to MP3, WAV or subtitles: which file to download

Text to MP3 is the everyday choice: small files that play everywhere, ready for a website, a social post or a podcast host.

Download WAV when the voiceover goes into a video or audio editor for mixing, so music, effects and the voice keep their full quality through the edit.

Add SRT or VTT subtitles for video. They come from the same word timings as the audio, so the captions match the voice line for line. Most video editors accept SRT, and VTT is the format web players read.

Text to speech for listening and accessibility

It also works the other way round: listen to what you would otherwise read. Turn a long article, your study notes or a report into an MP3 and play it on a walk or a commute. Hearing a draft read back is one of the quickest ways to catch clumsy sentences, too.

Audio versions make content easier to enjoy for people who prefer listening, are learning a language or find long text tiring. A voiceover with matching subtitles serves readers and listeners in one go.