Sonorous cartography for sighted and blind people

International audience; In this article, we test the usability of a cartographic tool mixing maps and sounds. This tool is developed withinQuantumGIS as a plugin prototype. We first present some theoretical reflections about synesthesia. Secondly, weexplain the way we «sonificate» the images, by associating colors and recorded chords and sounds. Then we presentthe results of several usability tests in France with different users, including blind people. We finally conclude on thecontributions and the limitations of such a tool and draw some perspectives.