The Mathematics of Hearing

Science Blog has a great post on how the signals from our ears are transmitted to our brains.
The research provides a new mathematical framework for understanding sound processing and suggests that our hearing is highly optimized in terms of signal coding—the process by which sounds are translated into information by our brains—for the range of sounds we experience. The same work also has far-reaching, long-term technological implications, such as providing a predictive model to vastly improve signal processing for better-quality compressed digital audio files and designing brain-like codes for cochlear implants, which restore hearing to the deaf“.
Scientists Show How Brain Processes Sound