**6. Discussion**

Throughout this work, three types of tests were performed to assess a multi-sensory method to convey color information by using temperature and musical sound cues. The

results showed the intrinsic relationship of several sounds and temperature-based cues to the warm, cold, dark, and bright dimensions of colors. Based on these results, a promising multi-sensory system for expressing color through sound and temperature was designed. It was shown that, from both sound codes designed in [6], VIVALDI color coding was better for the task than the CLASSIC color coding. Similarly, different temperatures were also assessed and the best temperature cues to apply for each dimension were also found. Lastly, the most appropriate temperature–sound–color coding method was defined by defining the method and all its temperature and sound cues. In addition, this last coding method was tested with 12 different users. The final results show that the system is a promising solution for expressing color to users in a multimodal way.

The addition of a multi-sensory sound–temperature interaction as a way of communicating color can open the door to many new ways of experiencing art for the VIP. In addition, the extensive adjective survey for each one of the sounds and temperature cues can be handy for other investigations in the future. Finally, we expect this research to serve encouragemen<sup>t</sup> for many more multi-sensory application research and systems that could improve the way in which visually impaired people experience art.

## **7. Future Work**

