English - Korean

SBS Artech's Claim
According to SBS Artech at the Vocaloid 3 introduction, SeeU's Korean voicebank could recreate English. However, this has proven to be just a quasi equivalent of English, just as how Sonika can recreate 90% of the Chinese language using an English voicebank. Without subtitles, some English speakers were strained to understand SeeU's "English" in her first demo song "Run!". Overall, this claim has proven to be plausable to a varying degree and the Korean engine is able to create enough "English" to be understandable and is able to more closely recreate English then Japanese. However, despite being relatively clear, the engine naturally does not produce smooth singing results without some attention and users need to take note of how Korean Vocaloids work to fix this issue.