Syllables Defoko and Teto Have

[NegiStick123]

So I noticed these syllables most voicebanks don't have...
ガ　ギ　グ　ゲ　ゴ
All the AquesTalk voicebanks and Teto have these, but no other voicebanks I have these. All I find it really hard to understand them, so what are they?

That's ga gi gu ge go in Katakana, how is this different from the Hiragana が　ぎ　ぐ　げ　ご? Are these necessary for a Japanese bank?

I asked someone online, and they said it's a Korean g or ng or something. It kind of makes sense though, because I read online somewhere that sometimes in the middle of words it's like slang or something to pronounce ga like nga.

So if it's nga, is it like the same nga sound in Tagalog?

 

[Umbreon126]

[retracted]

 

[NegiStick123]

Hmm, Defoko has those circles and Teto has dakuten..

Anyway that makes sense, and yes that's the same nga in Tagalog. I'll record these in my next voicebank.

 

[Mugi]

Its strange. I've noticed that a few other JP banks have the same Katakana recordings, but they use it for different purposes. Sekka Yufu's newest VCV voicebanks have a Katakana set for "s", "f", and "k" samples, as well as the dakuten "k" and "s" samples. However, all of the katakana samples, (save for k), are used for "w" strings. (スィ = swi). Its odd.