I'm not following why the need for a compressor in the car stereo translates to the need to bake it into the source material. Why ruin it for everyone when not ruining it is easier? Pioneer etc. could just do it in the stereo for the car.
Well, when it comes to classical music, it's NOT baked in, so it has to happen in the car or car-destiined chain somewhere. Processing classical music for high-noise environment listening is darn difficult, and quite aggressive, so it absolutely would be rejected in that market for any other listening. So far I have yet to see a car stereo with actual dynamics processing in it. Link me up to one if you know about it.
In fact the last cheap Pioneer car radio I bought had a special setting to improve the sound of compressed music so it's hardly going to be difficult for them to add compression, they just replace their complex algorithm with a very simple one.
There's been an attempt by several manufacturers to improve the sound of compressed music with some sort of algorithm-based DSP. However, that's not dynamic compression they're talking about, that's the kind of lossy compression found in .mp3 files, etc. Technically, "compression" is the wrong term for that, it's bit-rate reduction with a lossy codec. But compression is easy and stuck, hence your confusion.
The problem with baking the damage into the material is that most compression is extremely difficult to reverse, so by selling the same clipped and over compressed rubbish to everyone guarantees that it won't quite sound right on anything, whereas the best qualified to compress music for a car is a company like Pioneer, not some talentless hack at the record company ruining the output for everyone.
I get the idea here, and sort of agree. You can't reverse loudness processing for many reasons, mostly you don't actually know how it's been applied, and if applied on a track level, you can't isolate that track ever again to reprocess it. Yes, baking it in is a one-way street. However, what you get out of anything is what the producer wanted you to get, which may or may not be garbage depending on the music and processing. I don't agree that it was a talentless hack that applied it. If you had ever attempted loudness processing yourself you'd know how actually difficult it is to do well. And a certainly don't believe Pioneer is a company capable of properly processing any type of music for all listening environments. There are companies that have specialized in audio processing for 40 years that I might turn to for that, perhaps with the end result being a chip or something, but otherwise processing is not simple to do well without side effects.
I note that the narrative is sticking with compression and ignoring clipping. Tracks like that in the Elephunk album from the Black Eyed Peas and many others are compressed sure, but also contain many perfectly flat clips, some over 200 samples long. Clipping is common is digital music, some clips are quite rough and there's a gray area between some severe brick wall limiting and clipping but the effect is the same and is a dishonest way of selling a product that is marketed with the pretence of CD quality.
200 samples at 44.kHz is about 4ms long, which frankly, depending on the degree, is just barely audible as being clipped. You don't have a handle on how clipping can be used, and when it becomes audible or not. It's time vs frequency vs degree, and not as easy as just peeping at a waveform, blowing it up and saying in horror "See! It's Clipped!". There actually can be inaudible clipping. But I'm not advocating clipping, just explaining it.
I don't see what's dishonest about selling your art. The CD represents that art flawlessly. The artistic choices were made, and the CD reproduces it. If you don't like the choices, return the CD and ask for a refund.
I agree the loudness war ruins a lot of good audio quality, but you keep pointing fingers at things you don't understand. I get you're mad at the audio world! You just don't understand what you're mad at.
Greg, Pizza, Biggs, fascinating replies but you entirely miss the point, sorry. I thought you would. Why are you arguing for LoFi on a HiFi forum exactly, is there something we should know?
I'm not arguing in favor of LoFi, I'm trying to help you understand what's going on, and why. You should do yourself a favor and stop zooming in on waveforms, and just listen. I'm sure you'll still hear loudness war processing, but you're not doing yourself any favors by magnifying the inaudible.
For the record, I oppose the kind of processing done on pop music today. I feel it's unnecessary and gets in the way of musical enjoyment. If I had my choice I'd prefer a whole lot less. But I do also understand two important things: 1. Artistic purpose - and processing and EQ and a whole lot of other functions come under that heading. You can't take away the palette! And 2. The real war is the result of a general distortion of values and reality, but it's not the engineers making the call, it's above them - the guys producing the music and writing the check. You've labeled the engineers as frauds, dishonest, talentless hacks...and on and on. You just have no idea what a real fraudulent dishonest talentless hack would do. I promise, the results would be far worse.