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Old 25th September 2007, 07:08 AM   #21
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John, the studio techs are only doing what they are told, and that is pleasing the 99.5% of music customers that like compressed audio. We are a tiny minority, viewed by the masses the way meat eaters view vegetarians - weird and obsessed.
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Old 25th September 2007, 07:27 AM   #22
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I can confirm that I heard a famous engineer saying: "Don't make it as good as you can, make it as good as the customer (i.e. the producer, not the consumer) wants."

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Charles
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Old 25th September 2007, 07:34 AM   #23
Empee is offline Empee  Netherlands
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I just hope that in a few years,
when all the kids are buying their MP3's on the internet,
they get the compressed versions.

Would be nice to have the real, hardware CD's being hifi quality
with all the dynamics possible.

It's not so hard to make a button in CD-rip programs that says "compress to Ipod version"

A standard home PC can easily do the final compression.

Heck, companies could make their own "now even fatter sound" compression programs and sell them to the masses....
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Old 25th September 2007, 05:23 PM   #24
DarkOne is offline DarkOne  Slovakia
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I'm afraid that we can do nothing with music industry, but I always tried to figure out how to reverse compressed CD to dynamic/uncopressed ones.
Has someone experience with dynamic expanders or some sort of DSP which can solve this?

I've been looking for some expander plugins to my PC to test its effect on sound, but my attempt failed because I did find compressor plugins only.
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Old 25th September 2007, 06:08 PM   #25
mrwhy is offline mrwhy  United Kingdom
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Darkone
Expanders are a real PAIN!
If you wanna design one use ANY nonlinear function of any circuit component

You must decide
1. How quick you want the reasponse
2. How long you want it to last and how decay
3. Are you trying if instant-peak expander or some kinda average.

If I was trying it I'd start with something real simple - like a bridge circuit with incandescent lamps in opposed arms. Filiament lamps have ten times their cold resistance when hot.

For futher ideas, and some of the complications and compromises faced, I'd start in Langford Smith (Radio Designer's Handbook) Iliffe in UK and Howard Sams in US and OZ - where they call it Radiotron Handbook!
John
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Old 25th September 2007, 07:27 PM   #26
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Modern studio recorders use multi-band compressors that work on individual frequency bands, without knowing the settings, it would be just about impossible to undo.

On another note, http://news.bbc.co.uk/1/hi/entertainment/7004174.stm
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Old 26th September 2007, 07:38 AM   #27
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Moderate multiband compression can be quite acceptable.
What I don't like is clipping (which could not be reversed BTW because it is an irreversible loss of information) and heavy compression over the full frequency range. The worst I have heard so far was Eric Prydz' "Call on me". Not that I would listen to this intentionally but when it was a hit you couldn't escape it since it was played all the time wherever you went.

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Charles
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Old 26th September 2007, 07:49 AM   #28
mrwhy is offline mrwhy  United Kingdom
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Well there is soft clipping and hard clipping and as Pinkmouse points out you need to KNOW - which channel was clipped how much when and what other signals (harmonics) were present on that channel.
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Old 26th September 2007, 09:16 AM   #29
Pano is offline Pano  United States
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Quote:
Originally posted by pinkmouse
On another note, http://news.bbc.co.uk/1/hi/entertainment/7004174.stm
Uggggh. I think I'll go be sick now. Excuse me.
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Old 26th September 2007, 09:34 AM   #30
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The worst statement form this one is:

"Almost without exception, each of those tracks had incredibly satisfying stereo.

Whether it was The Beatles, the Stones, The Clash, or Bruce Springsteen's Born To Run, you could take out one earphone and hear half of what was going on - then you could put in other earphone and hear something completely different. It was thrilling. "



That tells me that some of these "specialists" don't know much about the technical basics behind their job !

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Charles
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