Krisp Accent Conversion v3.7, Major Leap in Naturalness and Stability
Krisp’s Accent Conversion technology has been on a rapid path of continued innovation since v3 launched in March 2025, when it became mature enough for wide-scale deployment.
In just a few months, the technology has delivered major advancements:
May 2025, v3.5: Delivered a 20% quality boost for Filipino English and Indian English accents. Rolled out to 95% of Krisp desktop users in two days with strong agent and customer feedback.
July 2025, LATAM Pack: Added Latin American English accent support, now deployed across thousands of agents.
August 2025, v3.7: Focused on the Indian English accent pack, delivering significant gains in naturalness, voice stability, and clarity.
What’s New in v3.7
14% naturalness improvement (expert-rated) with more human-like speech and better handling of filler sounds
Improved voice stability with smoother pitch and tone, especially for thick accents
5% clarity boost with fewer artifacts and more intelligible speech
Better pronunciation accuracy with a 4% reduction in phoneme errors, improving difficult sounds like “R” and “L”
How It Was Measured
78 real-world agent call samples evaluated
Expert panel scoring, crowdsourced listening tests (3,120 votes), and objective metrics from Meta Audiobox Aesthetics and Facebook NN Phonemizer
Crowdsourced preference showed v3.7 was chosen 20% more often for sounding more natural
Read the full technical deep dive with benchmark data and audio samples.
Why It Matters
Accent Conversion v3.7 raises the bar for voice naturalness in high-variance accents, addressing key call center challenges around intelligibility and customer experience.