Voices

For each voice, the given grades are intended to be estimates of the quality and quantity of its associated training data, both of which impact overall inference quality.

Subjectively, voices will sound better or worse to different people.

Target Quality

How high quality is the reference voice? This grade may be impacted by audio quality, artifacts, compression, & sample rate.
How well do the text labels match the audio? Text/audio misalignment (e.g. from hallucinations) will lower this grade.

Training Duration

How much audio was seen during training? Smaller durations result in a lower overall grade.

American 🇺🇸

American G2P: misaki[en] with en-us espeak-ng fallback

Name	Traits	Target Quality	Training Duration	Overall Grade
af_alloy	🚺	B	MM minutes	C
af_aoede	🚺	B	H hours	C+
af_bella	🚺🔥	A	HH hours	A-
af_jessica	🚺	C	MM minutes	D
af_kore	🚺	B	H hours	C+
af_nicole	🚺🎧	B	HH hours	B-
af_nova	🚺	B	MM minutes	C
af_river	🚺	C	MM minutes	D
af_sarah	🚺	B	H hours	C+
af_sky	🚺	B	M minutes	C-
am_adam	🚹	D	H hours	F+
am_echo	🚹	C	MM minutes	D
am_eric	🚹	C	MM minutes	D
am_fenrir	🚹	B	H hours	C+
am_liam	🚹	C	MM minutes	D
am_michael	🚹	B	H hours	C+
am_onyx	🚹	C	MM minutes	D
am_puck	🚹	B	H hours	C+

British 🇬🇧

British G2P: misaki[en] with en-gb espeak-ng fallback

Name	Traits	Target Quality	Training Duration	Overall Grade
bf_alice	🚺	C	MM minutes	D
bf_emma	🚺	B	HH hours	B-
bf_isabella	🚺	B	MM minutes	C
bf_lily	🚺	C	MM minutes	D
bm_daniel	🚹	C	MM minutes	D
bm_fable	🚹	B	MM minutes	C
bm_george	🚹	B	MM minutes	C
bm_lewis	🚹	C	H hours	D+

French 🇫🇷

French G2P: espeak-ng fr-fr

Name	Traits	Target Quality	Training Duration	Overall Grade
ff_siwis	🚺	B	<11 hours	B-