Talk:SONiKA (VOCALOID2)/@comment-24785637-20140625090314/@comment-3467648-20140625153232

If you're working with V3, it's a good idea use the [-] phoneme for stand long notes. Remember this phoneme "extends" the preceding vowel

Also, go to Singing Style Default/Properties windows and check if the Decay is in 0%. If that's not the case, the voice will drop gradually, which is specially noticeable in long notes.