ERC Project D2Smell
The Challenge of Scents: Why Can’t We Digitize Smells?
Scents are one of the most complex sensory experiences – and that’s exactly what makes them so difficult to capture. While images, sounds, and even touch can now be digitized and reproduced, our sense of smell remains one of the last great frontiers of technology. But why is that?
1. The immense variety of scent molecules
Unlike colors or sounds, which are composed of a limited range of wavelengths, scents consist of thousands of different molecules. These molecules interact in highly complex ways with our olfactory receptors – a process that is still not fully understood.
2. Individual perception
Smells are highly subjective. One person might perceive a plant’s scent as floral, while another detects a spicy or fruity note. Additionally, memories and personal experiences shape how we interpret smells, making standardized documentation even more challenging.
3. No universal ‘scent language’
Colors have RGB codes, and music has notation systems – but there is no equivalent universal standard for scents. While classification systems exist (such as "floral," "earthy," or "fruity"), they are often imprecise and subjective.
4. Lack of technology for digital reproduction
While screens display images and speakers reproduce sounds, no existing technology can generate and emit a precise smell on demand. Research into "electronic noses" and artificial scent production is ongoing, but a practical solution for everyday use is still out of reach.
Why It’s Still Important to Document Scents
Even though we can’t fully digitize smells yet, documenting them is more important than ever. Every recorded scent helps us recognize patterns, systematically explore plant aromas, and perhaps one day develop a better understanding of the "language of scents."
With our new scent feature in the Flora Incognita app, you can document exactly that – and actively contribute to creating a unique fragrance database!
