Like many professional scribblers, I sometimes have to write not in a hushed study or library, but in noisy environments. So years ago I bought a set of Apple AirPods Pro, neat little gadgets that have a limited degree of noise-cancelling ability. They’re not as effective as the clunky (and pricey) headphones that seasoned transcontinental airline passengers need, but they’re much lighter and less obtrusive. And they have a button that enables you to switch off the noise cancellation and hear what’s going on around you.
I remember wondering once if a version of them could also function as hearing aids, given the right software. But then dismissed the thought: after all, hearing aids are expensive, specialised devices that are often prescribed by audiologists – and also signal to the world at large that you are hard of hearing.
