orca: orca (Orca GNOME Visual Assistive Technology) orca: orca: Orca is a free, open source, flexible, extensible, and powerful orca: assistive technology for people with visual impairments. Using orca: various combinations of speech synthesis, braille, and magnification, orca: Orca helps provide access to applications and toolkits that support orca: the AT-SPI (e.g., the GNOME desktop). The development of Orca has orca: been led by the Accessibility Program Office of Sun Microsystems, orca: Inc. with contributions from many community members. orca: orca: