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Field Note 11SpeechExperiment · 12 Oct 2026

Bonjour, Kokoro.

A small French voice feasibility test, followed by broader CPU comparisons.

An ivory speech bubble floating above a forest-green speaker.
3French prompts tested
Exploratory benchmark

First-party engineering evidence. Results apply to the tested configuration and sample; they are not an SLA or a general model ranking.

THE TAKEAWAY

French speech without a GPU requirement.

What ran

All three prompts generated valid audio: a welcome, payment acknowledgement and team introduction. Generation ranged from 1.98 to 3.41 seconds for 3.98–6.38 seconds of audio.

Scope of the decision

Kokoro became the French TTS pilot option. This initial smoke test does not establish African French accent quality. The later Azure CPU study repeats matched French prompts and provides a stronger hardware comparison with listening samples.

THE MEASUREMENTS

Results, in context.

French feasibility
PromptGeneration (s)Audio (s)
Welcome2.354.62
Payment1.983.98
Introduction3.416.38

One sample per prompt; load time is excluded.

TEST SETUP

How we ran it.

  1. Kokoro on CPU using the ff_siwis French voice. Three synthetic service messages; one generation per prompt. Model load was measured separately at 1.36 seconds.
WHAT THIS DOES NOT PROVE

The limits matter.

  • Three synthetic prompts, no blind listening assessment and no accent-specific validation. A successful audio file is not proof of complete or natural pronunciation.
OPEN FINDINGS

Evidence & sources.

The public extract contains the methods, selected results and caveats in this note. It is a curated summary, not the full raw run. Fingerprints identify the retained source artifacts; gated audio and private operational records are not included.

Download results extract
Source artifact fingerprints · SHA-256
results.json72c1402af75adc57370aeb3d40fccedbfb6daed7c38e621a01a42b041df60a71

Suggested citation: Embiro Labs Research. “Bonjour, Kokoro.” Published 12 Oct 2026. embiro.ai/research/kokoro-french-voice

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