Re: [DCP-o-matic] Question about loudness

Great anecdote, which nails exactly 90-some percent of the problem. Yet TASA refuse to look at even looking at adapting or changing or anything else. But looking at the preliminary results of Jame’s Gardiner’s new tool, these trailers may all be certified at 85 dB LEQm by the two TASA certifiers – and his tool shows the LEQm numbers at or below 85 too – but the trailers are banging Tru Peak and LUFTs right up to the bar. And, like you say of that movie, some of these trailers are for low-key movies. Indeed, it is going to be a learning process, a political process, a technical process, then repeat repeat repeat. Myself, I am finding more and more that because the movie has been turned down that I can’t understand the dialog…a counter-intuitive effect of the perception problems that our hearing systems generate when the Equal Loudness Curves are accommodated for. I am working on a training piece that shows it in colors using a similar problem that the human visual system has, the perception of hue changes when only white is added to a color (the Abney effect) and how that and luminance level shifts changes hue (Bezold–Brucke) – a temporary solution might be for an auditorium to map areas of the room where the volume is a few dB lower and steer customers to those spots instead of turning the movie down. Oh, and thanks! C J