Which is better to start with English or Japanese

[Mee]

Eh, is it difficult to use an English VB, especially Teto's? I mean it's kinda ironic cause most western users do covers of vocaloid songs that aren't in their native language. Of course, you can learn the language but why is english consider to be more difficult than others.

 

[Kiyoteru]

Kasane Teto's english voicebank is actually rather difficult, in terms of english voicebanks.

The easiest style to start out with would have to be Arpasing. When you're using an arpasing voicebank, you can use the Arpasing Assistant plugin to convert english words to phonemes. The downside is that you have to do a lot of little adjustments to make it sound just right. But having a conversion to begin with makes it quite convenient.

A style that's been around for longer is VCCV. It's more popular and generally treated as the "standard" for the community. There's a series of tutorials on youtube made by the creator of VCCV.

English, phonetically, is a complex language. You can have lots of sounds all together, like in the word "strength". Breaking it down, you have s t r e ng th - all just in one syllable! Japanese, on the other hand, is very simple. At most, you have something like "nya". But most syllables are simply 1 consonant and 1 vowel, which is why it's so much easier to do in UTAU.

 

[HulderBulder]

Japanese banks are easier because most of them can be plug and played with ust, since there are plugins to convert them effectively. They're also a lot less to record. So it's nice to record them till you feel more comfortable with recording larger banks.
Why English is harder is explained well by Kiyoteru, different types, different pronunciation ect.
Teto English is hard despite having the English input helper, mostly due to her heavy accent, glitchy frq and some oto errors.

 

[Sors]

It depends. If you want to make your original music with UTAU, and don"t know Japanese, start with English. However, if you want to start with covers I suggest starting with Japanese. I think you should go this way:
Start with CV Japanese, once your comfortable with that, go to CVVC Japanese. CVVC has endings like n t, a sh, and can help you make engrish aka. English with a heavy japanese accent. Bzt CVVC is a good way to start learning how the other UTAU languages work. Once your familiar with CVVC, go for English, VCCV and/or Arpasing. Both have pros and cons. Only do VCV if you really want it, since its only useful for japanese, while CVVC can produce ok-sounding english, e.g. Namine Ritsu's CVVC bank includes some extra phonetics for English like r, th etc, but other than that has understandable english, even tho it is basically a CVVC Japanese bank.

 

[Soursop the fruit]

Japanese is a good choice to get yourself used to recording and the program, not only for having large resource of reclists, .USTs and songs for pratice, but it's phonem structure as it have less ending consonants too.

As for english...It's good when you're getting started to make Original song(if you don't speak japanese) or anything on higher level of difficulty
you can use it once you're used to the program, just keep in mind to remember all those symbols like 4,@,.etc, notes structure/length for one word, ending consonants and how each VB work cause they may sound different one another.

The learning stage to the program maybe like: Japanese > Engrish(i agree w/ @SweetDevilSora) > English
Recording/VB making: Japanese CV > VCV > CVVC > English CVVC/VCCV/Arpasing, Appends depends to your liking
Song making: English > Japanese(If you want)