Sorry to derail the gazetto thread, but I couldn't leave this unattended.
>"CD and itunes rips are 44.1khz / 16bit"
Yes, a lossless rip from a CD will be 44.1/16. However, while an mp3 does have a sample rate of 44.1k, it doesn't even function in the domain of "bit depth" in the traditional sense. "MP3's store the sound as amplitude over frequency, whereas a normal WAV has it as amplitude over time. The two are not directly comparable. In reality, most MP3's have a variable bit depth which often goes as low as 1 or 2 bits of ACCURACY, but with a much larger RANGE."
The logos behind mp3 and any lossy file type designed to compress information as transparently as possible is using variable rates to omit inessential information. Even a 320kps CBR mp3 still can't be viewed as constant in the same way a PCM file would.
"Additionally, as frames are not limited to a fixed size in bits, parts of the audio signal with complex sounds can use bytes from preceding frames, in essence giving all MP3:s variable bit rate."
>"Hi-Res is 44.1-192khz / 24-32 bit (the quality of a vinyl)"
I'm shocked that you would compare vinyl to a high fidelity digital audio file, let alone consider them equivalent. Vinyl is an ANALOG medium and doesn't have a bit depth or sample rate. I'll add the SNR of vinyl is quite poor (50db) in comparison to 16 bit (96db SNR) and 24 bit (144db SNR) digital audio, notwithstanding all of the other quality issues with vinyl.
>"This is what everyone has been listening to a standard 44.1khz/16bit rip -- And this is what I have 96khz/24bit"
Spectrograms are helpful to get a visual representation as confirmation for one's suspicions when listening to a poor rip. They are often used to demonstrate transcodes, because low bit rate mp3's have a harsh cut on the high end. It can make a 128kbps mp3 stick out like a sore thumb within a moment of listening, because you're missing quite noticeable information in the 16-20khz range, the very edge of the audible spectrum.
Speaking of which, I've sat in a large room full of people who were tested with a sine sweep to determine the edge of their hearing. They were all under the age of 25, so if any of their super-high end response was significantly missing, it was likely the result of hearing damage or genetics. The earliest point at which someone couldn't hear the tone was 15khz. Most of the room lost track of the sound around 17.5khz and only a select few people could hear just past 18khz, admitting it was very faint. By 19khz, no one could detect it. The human range of hearing does not surpass 20khz – common knowledge.
The first image of Himi's 256kbps / 44.1khz mp3 rip displays signal cutting off at 22khz, well beyond the edge of our hearing. Nice! The spectrogram of your hi-res files reaches all the way to nearly 50khz... Now, I have no problem with people preferring lossless formats for archival purposes and desires to preserve the original material in source quality, but acting like all that shit above 20khz is making your files sound better is foolish. Furthermore, all of that information above 20k is ridiculously quiet, most of it around -100db, at the loudest -80db. Even if you could hypothetically hear past 20k, the spectrogram is already telling you its irrelevant. Listen at your normal listening level and see if you can hear something playing back at -80db. Give it a try!
Speaking generally about the never-ending arguments surrounding lossless formats, there is a minute, though audible on correct systems, difference between a 44.1khz 16 bit lossless file and an efficiently encoded 320kbps mp3. Albeit, this is a difference at least 90% of people are unable to detect in a blind test. Furthermore, a difference between 48khz and 44.1khz is perceptible on state of the art equipment, though even less people than the latter are capable of noticing. The difference between 16 bit and 24 bit will never be perceptible, especially when listening to modern metal music where the master level is peaking at ~ -0.1dbfs at all times anyway. The only difference there is dynamic range, so you'll only be noticing it on the fade in from silence on the first sound of a song and the fade out from silence at the end, assuming you can hear quieter than -96db to really enjoy that 144db dynamic range of 24bit audio. (Remember what I said about -80db?)
With this in mind, while I do believe qualms between an mp3 and a CD quality rip are valid, believing that 24bit (let alone fucking 32 bit floating point [???]) or 96khz sample rate audio is perceptibly superior to a 44.1/48khz 16 bit file is bullshit. In addition to training my own ear, I've read numerous books on audio mastering and have had this very conversation with a number of veteran recording and mixing engineers (20+ years in the business) who have all told me a similar conclusion: Even on monitoring equipment the cost of your yearly income, what your missing beyond a 48k 16bit wav is null. There are technical reasons that some top-top-top of the line studios record at hard disk annihilatingly high sample rates and 32 bit, but they are in regards to the complexities of the record production process and their benefits are reaped even in a final master that's been reduced to a 44.1/16 standard – however, that is a discussion for another day.
I don't think you actually understand what you're fretting over and I think you're perpetuating an obsession with higher numbers being better, despite things not being that straightforward. Take this tool as an example of such possibilities, that bit depth, for instance, can be reduced with transparent playback. I want to stress that audio quality is only as good as the quality of its recording and the quality of its post-processing – and of course the performance! A poorly mixed or mastered record with an unnatural sounding frequency response will sound just as shit to me in 96/24 as it will in a 128kbps mp3. And of course vice versa, a beautifully engineered record's sheer SLAM value can't even be held back by a shitty mp3 – though I'd prefer a flac if I had the luxury
Finally, if anyone here is able to listen to the first 15 seconds of this newly re-recorded 絲 Ito and believe it sounds better than the original, I'm convinced your lying to yourself. Doesn't matter how high fidelity I hear it, there is no comparison – it is like night and day.