FL chan is the Mascot of a DAW software called FL studio or Fruity Loops. She was created after the creator of Fruity Loops was impressed at how a software can recieve recognition and fame through a moe impersonification. Her image was commissioned by a japanese artist called Uruido http://uruido.web.fc2.com/
FL studio itself mainly portraits her as a dancing sprite.
Though not having a real voice, Image-Line distributed an UTAU voicebank generated through the voice generator in FL studio. The voice used was 'Child'. It is not the best quality voicebank due to having same nature as Uta Utane (Defoko), and it has a slight english accent.
The voicebank can be created and used by anyone with the bought or demo version of FL studio.