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Originally Posted by TheRH /img/forum/go_quote.gif
Exactly, it is all about the music. When I am on my computer or listing to my stereo I do FLAC, main reason is hard drive space is almost irrelevant these days. So why not rip in FLAC. Now when I am on the go ( Sony Walkman) I want to preserve as much detail as possible now that I have some real IEM's ( Klispch S4's) and I can tell the difference in lower bit rates. And to address what you said, it is not blunt but rather the truth. 95% of the time it is about listing to and immersing yourself in the music and enjoying whatever it is that you have on.
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That's all well and good, but it does sidetrack my point a little - my point being that the extra detail you store in FLAC may be sonically equivalent to a completely different dataset coming from a mic sitting 1 foot away from the original mic's location. Hence the extra detail you get puts you in exactly 1 spot in the room.
In fact, the 2 datasets may look completely different in the time domain and remain sonically pretty spot on, only the frequency domain interpretation would show you how similar they really are. Without compression, the frequency domain interpretation is lossless.
Adding more precision to the dataset by using a higher bandwidth ADC process will increase the high frequency cut-off point further beyond what we can hear and otherwise just localise the sound more, which in most cases can not be faithfully reproduced as the same location, just reproduced as some uncertain location very precisely.
The extra precision in the frequency domain will affect the faithful reproduction of relative volume of different frequencies. By compressing this dataset slightly, you may lose consistency in both frequency response and phase locality. When I say frequency response, I mean its all there, just a calculable error in relative volume of different frequencies. The spatial locality loss is due to the loss of phase information, putting you in an uncertain location in the original soundspace.
The loss of some "punch" in MP3 is probably due to the inability to accurately recreate the onset of sound from exactly 1 point in space.
Its miniscule in high rate MP3 and although detectable with good equipment, the question of whether this is a less faithful reproduction of the original sound-space depends on other factors like how the sound-space is intended to be reproduced with respect to locality using either speakers or headphones.
In the case of "punch" the original sound-space may have reflective surfaces that will color any impact and you may actually experience a greater sense of impact if their respective locations are uncertain - i.e. the error in position may create slightly less or more of an impact for different sounds.
All done now. Back to Ry Cooder.