Xingchen (Simplified Chinese: 星尘; Traditional Chinese: 星塵), also known in English as Stardust, is a Mandarin Chinese vocal developed and distributed by Beijing Photek S&T Development Co., Ltd., and released as an AI voice database (known as "Xingchen Infinity") for Synthesizer V Studio in February 2022. She was previously released as a VOCALOID4 voicebank on April 13, 2016, and was the company's first and only VOCALOID product. She later became part of the MEDIUM⁵ cast.