Template:Sonika V2 voicebank

Sonika is a Vocaloid designed for Pop Music. She has a strong British accent and is better suited for late 20th century pop and sings with a soft and innocent sounding voice. Sonika is a relatively easy voicebank to use overall, and has an above standard level of English skills. She is a Mezzo-soprano singer. Unlike past Zero-G Vocaloids, Sonika was not intended to be based on a professional singer and does not produce professional singer quality results in the same way Prima did. However, this allowed her voice to be more flexible than past Vocaloids; Sonika was the closest Zero-G Vocaloids came to mimicking "Character Mascot" style of Vocaloids favoured by Japanese Vocaloids during the Vocaloid 2 era because of it. According to Zero-G, Sonika has every vowel sound combination possible needed for English.

Sonika was ranked 4 out of 5 stars by Sound on sound writer John Walden and in his opinion her higher vocals were better then lower and labelled "C4" as the best octave. He also stated that in his opinion her vocals seem best for "bubblegum pop", Walden having had experience with the software since Vocaloid, also felt Sonika was a high quality product.

At a optimum known vocal range of #D5, both Megurine Luka and Sonika joint hold the title of second highest Vocaloid 2 vocal, the highest being joint held by Hatsune Miku and Prima at #E5.

Her voicebank is often labelled "low-quality" by fans for a number of issues related to her and some have remained critical about her overall voicebank quality. Something often picked up upon is that she has a very tinny feed back issue that, while possible to remove, effects her raw vocals. Some of the notes includes the acknowledgement that she is unstable when she reaches her optimum range and Sonika will suddenly change from being soft and muffled to loud and clear (one range reported where she is clear is #B2 to #G3). Like Luka, when pronouncing the words "Road Roller", she can struggle seperating the second half of the words, whereas Prima, Tonio and Big Al can pronounce these words clearly with ease. This however was because she has a number of pronounication issues linked to a number of weak consonant related sounds, which are made harder to use because of the softness of her vocals.

Sonika benefits greatly from the use of the hidden phonetics [sil] and [asp] and these can be used to remove some of these issues, when imported into Vocaloid 3 use of the [?] hidden phonetic will carry her even further. So while she is easy to use, she is difficult to master and may not be suitable for inexperienced Vocaloid users due to her limitations. Sonika has no breath samples. Sonika's more flexiable vocal came at the price to realism, boasting a vocal more centre around characteristics then realism.