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Final consonant cluster tests with Japanese voicebanks in SynthV technical preview versus production release

I’ve suspected for a while that the SynthV production release has more trouble pronouncing consonant clusters with Japanese voicebanks than the technical preview, so I’ve decided to make a test.

Setup: 4 bars of rest, followed by one Arka word every bar with 28 words total. No hacks to try to make it work.

Green cells indicated passed tests (all final consonants pronounced); red means failure. There was one case where Renri TP ‘passed’ but the pronunciation was not close enough to justify a green cell.

Word Correct Renri TP Renri Prod Genbu Prod
haps haps hapo hapɯ hapɯ
ets ɛts eːts eːts eːts
miks mɪks miks mikɰi mikʷi
kems kɛms keɾo kemɰi kemɰi
gens ɡɛns ɡeɾo ɡeni ɡenə̯i
pels pɛls peɾo peɾi peɾi
hars haɹs haɾʲo haɾi haɾi
kamz kamz kaɾʲo kamɰi kami
vanz vanz vaɾ̃ʲo vani vani
malz malz maɾz̥ maɾi maɾi
elz ɛlz eɾz̥ eɾi eɾi
kalp kalp kaɾuŋ kaɾi kaɾi
elb ɛlb eɾb̥ eɾʲe eɾʲe
velt vɛlt veɾt veɾi vˠeɾi
eld ɛld eɾd̥ eɾɰi eɾi
dalk dalk daɾk daɾi daɾi
yulg jɯlɡ juɾɡ juɾi juɾi
melx mɛlʃ meɾa meɾi meɾɰi
xelj ʃɛlʒ seɾtɕ ɕeɾɯ ɕeɾɯ
homp hɔmp homʲa homɰi homɰi
domb dɔmb domb̥ tomɰi dˠomɰi
sent sɛnt seni seni seni
bend bɛnd benʲo beni beni
ank aŋk haɾaŋ hani ani
feng fɛŋɡ fenʲa feni fenʷi
dakt dakt daːkt dakɰi dakʷi
dagd daɡd daːgd daːgd daːgd
sapt sapt sapo sapi sapɯ

.json file (for TP)

Renri TP

Renri prod

Genbu prod

Main takeaways