Sterling Rockwell
English (US) · American · male · balanced · rapid · Naadly Core
Everyday narration voice - balanced American voice, rapid pace
English (US) · American · male · balanced · rapid · Naadly Core
Everyday narration voice - balanced American voice, rapid pace
| Language | English (US) (en_US) |
|---|---|
| Accent | American |
| Delivery | balanced, rapid |
| Measured pitch | 120.5 Hz · 5.07 words per second |
| Quality | Great · clarity grade B |
| Tier | Naadly Core — on every plan, including free |
| Licence | CC BY 4.0 (attribution required — how we credit it) |
| Engine id | en_US-libritts_r-medium:3274 |
Commercial use is included on every plan. Everything generated is watermarked and labelled as AI — the licences in full.
Snappy reels and shorts voice
Engine id en_US-libritts_r-medium:2127
Model en_US-libritts_r-medium · speaker
2127
CC BY 4.0 (attribution required)
Pitch 112.5 Hz · 4.47 words/sec · clarity grade A
Fast, upbeat social read
Engine id en_US-libritts_r-medium:272
Model en_US-libritts_r-medium · speaker
272
CC BY 4.0 (attribution required)
Pitch 136.1 Hz · 4.83 words/sec · clarity grade A
Clean explainer and demo voice
Engine id en_US-libritts_r-medium:6080
Model en_US-libritts_r-medium · speaker
6080
CC BY 4.0 (attribution required)
Pitch 129.7 Hz · 3.97 words/sec · clarity grade A
Fast, upbeat social read
Engine id en_US-libritts_r-medium:1383
Model en_US-libritts_r-medium · speaker
1383
CC BY 4.0 (attribution required)
Pitch 123.9 Hz · 5.07 words/sec · clarity grade B
Everyday narration voice
Engine id en_US-libritts_r-medium:8142
Model en_US-libritts_r-medium · speaker
8142
CC BY 4.0 (attribution required)
Pitch 110.2 Hz · 4.68 words/sec · clarity grade A
Snappy reels and shorts voice
Engine id en_US-libritts_r-medium:1849
Model en_US-libritts_r-medium · speaker
1849
CC BY 4.0 (attribution required)
Pitch 167.0 Hz · 4.25 words/sec · clarity grade A
The free plan gives you 30 minutes of audio a month across 1481 voices in 11 languages. No card.