Articles

John Watkinson wonders about computer and network security A long time ago when Pontius was still training to be a pilot, it was possible to consider audio as a separate topic. Today such a separation is impossible. Audio is just another form of information that can be conveyed over some network or other and we…

John Watkinson is a big fan of analog audio. An analog is a phenomenon that behaves similarly to another. In speech we have similes and education is full of parallels. Whilst a painting or a sculpture can last thousands of years, in audio we have a problem that sound cannot be preserved at all in…

John Watkinson relates a personal history of radio. The family radio in the kitchen churned out uninspiring stuff most of the time, but I remember in 1962 it emitted a song called “Love Letters” by Ketty Lester, and when I listened to it I felt, probably for the first time, that here was a song…

John Watkinson tries to be rational. Sometimes I like to discuss topics that are not immediately identifiable with audio. Audio is part of the world and is not the only discipline in which excellence is pursued, and achieving excellence by rejecting the mediocre takes place in many other endeavours that are worthy of study. We…

Transforms are very useful in audio, but John Watkinson argues that they are just as useful for understanding audio as they are for processing it. Let’s look first at the Fourier transform. The whole basis is that any periodic waveform can be broken down into a set of harmonically related pure tones, or sine waves.…

John Watkinson looks at evolutionary forces. Nothing is for ever and the only certainty is change. The endless march of evolution in the biosphere is paralleled by evolution in technology. The audio industry is only part of the world, yet the extent of the changes that have been seen in audio are such that they…

John Watkinson wonders if accuracy in audio actually matters. I would have to begin by defining what I mean by high fidelity. What I have in mind is a system of sound reproduction that is so realistic that it is indistinguishable from being there. However, the more I think about such a system the less…