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The "Loudness War" and the Future of Music

novus ordo Re:The alternative? (687 comments)

Interestingly dynamic compression for the sake of getting things louder and data compression are almost mutual exclusive
By compressing the dynamic range you are necessarily compressing the range of values your data can hold. That IS data compression. Kind of stupid data compression because you cannot then recreate the original data from it. You essentially lose all of the mapping between frequencies outside of your normalization envelope and map them to some other sound that is in that place(if there is sound occupying that space). That's what all that noise is--data that has been mapped to the same frequency. Maybe it doesn't make much of a difference when there are 2-3 instruments and they don't get in each other's way when normalized, but when you have sound and fury all compressed in a small space that's when you will really hear it.

As a side note it might be worth noting that it may be a way of making bad artists sound good. In a way you make their job easier with a smaller sound space they need to master. If you haven't noticed how some artists sound good on CD and they suck live this is the reason...not to mention other neat tricks they do in the studio but I digress...

more than 6 years ago

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novus ordo novus ordo writes  |  more than 7 years ago A Hungarian company named Holografika is working on a true 3D display. They have been offering their HoloVizio system($39,000) for a couple of years for medical and visualization purposes. Apparently it uses two screens that send rays of light in appropriate directions to make the image seem 3D. Here it is in action at Siggraph. There are also full divx videos on their main site.

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novus ordo novus ordo writes  |  more than 7 years ago IEEE Computer has an article on limits of human vision and how were moving toward that goal. While the highest HDTV content has(all approx) 2MP, theaters' is 10MP, but human vision can discern on the order of hundreds of megapixels. That's not even taking into account the remarkable dynamic range. We got quite a long way to go.

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