Category Archives: Imperfect perception

A-Weighting, the saviour of many a poor piece of equipment

Posted on February 21, 2005 by Stephen Dawson

The aim of makers of high fidelity audio equipment is — or at any rate, ought to be — to produce equipment that does not modify the signal, other than convert it (from a digital to analogue representation, or from … Continue reading →

Posted in Audio, General Tech, Imperfect perception, Testing | Leave a comment

The Flexible Brain

Posted on February 14, 2004 by Stephen Dawson

A couple of months ago I remarked on the misformatted picture of Saddam Hussein: What is interesting is that the distorted image is still recognisably Hussein. The image processing and facial recognition circuitry in the human brain is truly an … Continue reading →

Posted in Imperfect perception | Leave a comment

The misuse of widescreen displays

Posted on December 15, 2003 by Stephen Dawson

I’ve seen them in people’s homes. I’ve seen them in a multitude of shops. I’ve seen them, incredibly, at product launches by major home entertainment equipment manufacturers. And now, once again, I’ve seen one in Iraq, courtesy of CNN. What … Continue reading →

Posted in Imperfect perception, Video | Leave a comment

Subjective vs Objective testing

Posted on August 16, 2003 by Stephen Dawson

Here’s a report of a study that bears somewhat on the problem of assessing the performance of home entertainment equipment. In brief, it seems that statistical models are significantly better at predicting outcomes, diagnosing illness and all sorts of other … Continue reading →

Posted in Imperfect perception, Testing | Leave a comment