The unstoppable rise of stage amplification
Recent acquisition of some insanely expensive hearing aids aimed at helping me out in cacophonous restaurants has set me thinking about the extent that modern life allows us to filter our intake of noise. This is big business. As sirens wail and Marvel blockbusters and rock concerts crash through legal decibel levels, controlling sound levels has become an increasingly sophisticated operation, abetted by everything from silicone pastilles and the volume-control knob to the wireless earbud. The National Theatre has virtually given up on ‘natural’ sound Concert halls and opera houses remain havens of what one might call ‘natural’ acoustics, places where the alchemy of balancing convex and concave surfaces with