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Rotational Velocidensity Awareness RVAwareness
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Rotational Velocidensity Awareness RVAwareness
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ABOUT Rotational Velocidensity Awareness

Rotational velocidensity affects all audio files encoded with lossy compression. These include mp3, aac, and ogg.

There seems to be a lot of misconceptions in the music community regarding the differences between 320kbps mp3 and FLAC format. It is true that 320kbps is technically as good as FLAC, but there are other reasons to get music in a lossless format.

Hearing the difference now isn’t the reason to encode to FLAC. FLAC uses lossless compression, while MP3 is ‘lossy’. What this means is that for each year the MP3 sits on your hard drive, it will lose roughly 12kbps, assuming you have SATA – it’s about 15kbps on IDE, but only 7kbps on SCSI, due to rotational velocidensity. You don’t want to know how much worse it is on CD-ROM or other optical media.

I started collecting MP3s in about 2001, and if I try to play any of the tracks I downloaded back then, even the stuff I grabbed at 320kbps, they just sound like crap. The bass is terrible, the midrange…well don’t get me started. Some of those albums have degraded down to 32 or even 16kbps. FLAC rips from the same period still sound great, even if they weren’t stored correctly, in a cool, dry place. Seriously, stick to FLAC, you may not be able to hear the difference now, but in a year or two, you’ll be glad you did.

FLAC[en.wikipedia.org]
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13 Comments
Cursed-Cat 15 Nov @ 2:33am 
Guys, I left my FLAC album slightly opened in the basement.
Thought that it was gonna be fine, but after checking it years later. I noticed that kilobit mold started to grow on it, which makes small sections of my songs sound a bit noisy.
Is it still good to use, or do I have to get a new album?

Any help regarding this would be appreciated.
linda420 21 Oct, 2022 @ 11:00am 
snake oil
I Rape 17 Jan, 2018 @ 6:58pm 
rotational velocidensity ...
happy birthday me 31 Oct, 2016 @ 1:43pm 
actually, the man knows what he's talking about, albeit, petty or nonsense to most people. when i've gone back to some really old mp3's from way back 'in-the-day' (90's, Napster, 56k modem) most of my mp3 library sounds like crap, mostly due to the technologies available at the time. i notice an unusually large amount of "pops" in a lot of songs and a 128k rip sounds more flat than a new 128k rip (both sound terrible regardless). anybody who knows how data is written to a disc would know that bits do get lost over time.
happy birthday me 31 Oct, 2016 @ 1:43pm 
i'm an arrogant, elitist, analog snob with 2 vintage hifi systems (1 solid state/1 tube based) that can expose every imperfection in an mp3 file. it absolutely cracks me up when people think their crappy OEM soundcard, crappy best buy cables, and crappy desktop speakers are suitable benchmarks for judging sound quality.
happy birthday me 31 Oct, 2016 @ 1:43pm 
it's pathetic how nowadays people have allowed themselves to compromise quality over convenience and cost. i'm only 34 but just as bitter and scornful as someone twice my age. just wait until i get my FLAC vinyl rip blog up and running!
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