Macne Petit (マクネプチ/Mac音プチ) is a Japanese VOCALOID developed and distributed by AH-Software in collaboration with the Macne Nana Project (MI7 Japan Inc.) for the VOCALOID4 engine in December 2016. Her voice is provided by the Japanese voice actress and actress Haruna Ikezawa (池澤春菜, Ikezawa Haruna).
Petit was initially intended to be an expansion to the original Macne Nana concept and was regarded as a "mini version". She had the same vocal as Nana, however, she was missing the treble and bass samples and it was noted that those who owned Nana did not need to own Petit. Because she had 1/3 of the content, she was additionally sold at a lower price and was supposed to be a cheaper "lite" version of the full Macne Nana software. She was then labelled as Nana's younger sister due to a popular fan concept and additional samples were supplied to fill in her missing bass via an expansion pack. Due to issues with how unnatural the treble and bass range sounded, a further pack was supplied to fix these issues. She was fully complete by the time of her 2S release as a full fledged character separate to Nana herself.
Petit is the "straight man" of the Macne family and she keeps the family together, making sure that they do not become divided. She is usually quiet, but is willing to make conversation with others rather than watch things go wrong.
She also has an additional vocal created for UTAU and GarageBand called "Whisper☆Angel Sasayaki-san" (ウィスパー☆エンジェル ささやきさん). It acted as an expansion of her character and was conceptualized as Macne Petit in magical girl form. She transformed into this version of herself using a magic wand given to her.
"Macne" is a combination of the word "Mac", referring to the Macintosh related products, and "Ne" (音), meaning "sound", so her surname means "Mac Sound".
Petit was originally known as "Macne Nana Petit" (Mac音ナナ Petit), however, the "Nana" part of her name was dropped since her 2S release. The "Petite" name comes from being a "lite" version of Macne Nana.
Her VOCALOID release labels her voice as "Macne Nana Petit".
Like other members of her family, Petit is based on Mac computers and various devices by Apple Inc.. In addition, her design is loosely based on Nana's outfit. Like the rest of the female Macnes, Petit's 3 sizes were given out: B67, W57, and H77.
Her magical girl form, Whisper☆Angel Sasayaki-san, is based on an "angel", which was meant to be a counter for an unreleased "devil" vocal. Whisper☆Angel Sasayaki-san also has a different body size then any of Petit's normal vocals. She is said to look about 15–16 years old and her 3 sizes are B73 W53 H83.
Petit's 2S attire is based on a "prince" as a counter for Nana's "princess"-esque outfit.
Petit was well received despite being a "mini" version of Nana. She became very popular among Macne fans especially after transferring the vocals into UTAU, which became a popular technique among Macne and UTAU fans. After becoming a full character herself, Petit became the second primary focus of the Macne series and had since appeared in numerous artwork centered around the family alongside Nana.
Petit's acceptance as a "sister" to Nana was the start of the "Macne family". Nana and Petit were joined by their sisters, the Coco twins, and their father, Macne Papa.