My sixth and final conference speaking engagement was The Smart Green Summit in Delhi. I have to say I was more than a tad apprehensive about speaking on acoustics in India. What could I possibly tell Indians about overcoming noise (pollution)? Delhi was reported by India Today (2012) to have a noise level some 16 times higher than the prescribed limit set by the WHO. So I made few comparisons to outdoor noise levels in London and then moved swiftly on to indoor acoustics.