A thirty second radio spot is one or two requests and about two seconds of generation. These six come from the 57 voices tagged for advertisement, chosen for projection and pace.
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German AI Voices
Female Voices
Warm Voices
AI Voices for Podcast Generation
British English AI Voices
AI Voices for Documentary Voice Over
Calm Voices
Australian English AI Voices
AI Voices for Gaming & Character Voices
Professional Voices
AI Narrator Voices
Cheerful Voices
AI Voices for Customer Support Automation
Authoritative Voices
AI Voices for Meditation & Wellness
Gravelly AI Voices
AI Voices for YouTube Voiceover
Indian English AI Voices
AI Voices for Movie Trailers
Friendly Voices
Narration is the one job where a voice has to hold up for hours rather than seconds. 163 of the 244 voices here carry the narration tag, the largest group in the catalog, across English, Hindi and nine other Indic languages.
1500+ voices to explore
Browse our full voice library and find the right tone, accent, and personality for your agent.
Model Specifications
Streaming transports
Output formats
Speed range
Sample rate
Latency
Radio runs on revisions, not recordings
A spot is approved, then the client changes the offer, then legal changes the disclaimer. Each round traditionally means rebooking a booth. Requests cap at 250 characters, roughly one spoken line, so a revision costs one regeneration of about a second. That changes how late in the process copy can still move.
Producing variants worth testing
Because a spot costs seconds rather than a session, producing four versions and testing them becomes practical. Different voices, different pacing, different emphasis on the offer. That is normally the first thing cut from a radio budget and the first thing that would improve response.
Pace carries a commercial
Retail reads sit between 1.1 and 1.3, with disclaimers faster still. Speed adjusts from 0.5 to 2.0 and is the only delivery control, since there is no tone or emotion parameter. Past roughly 1.5 intelligibility drops, which matters more on radio than on video because there is nothing to look at.
What broadcast needs from the file
Request WAV at 44.1 kHz rather than MP3. Stations apply their own compression on ingest, and starting from an already encoded file compounds it. Confirm the loudness specification the station requires, since that is applied at your end before delivery.
Similar to
AI Voices for Radio Ads
AI Voices for Ads & Commercials
Commercial reads are short, fast, and worth testing in variants. A thirty second spot is one or two requests, which makes producing four versions cheaper than booking one session.
AI Voices for Announcements & Public Transport
Announcements are heard in reverberant halls and repeated thousands of times. Pronunciation dictionaries fix station and place names permanently, ulaw and alaw feed public address hardware directly, and one voice carries a full multilingual chain.
AI Voices for YouTube Voiceover
Short form rewards pace, and speed adjusts up to 2.0. Scripts change after the edit, so generating line by line means retiming a section costs one line rather than the whole track.
For Explainer & Product Demo Videos
Explainer scripts get rewritten after the first cut. Generating line by line means a late change costs one line rather than a re-record, and audio arrives in about a second at 44.1 kHz.
Energetic Voices
Speed is the reliable lever here, not casting. Settings between 1.2 and 1.4 lift almost any voice in the catalog, though longer sentences start to blur past roughly 1.5.
American English AI Voices
Forty three American voices, the deepest English set in the catalog. Enough range to cast for tone across a campaign rather than reusing the same voice because nothing else fits.
