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Return of the Vinyl Album
bulled writes "NPR ran a story this morning about the comeback of vinyl. It seems that sales of new vinyl records are up about 10%; sales will approach a million this year (as against half a billion for CDs). NPR mentioned the popularity of a turntable with a USB interface — they didn't specify the brand; could be this one, or this — and speculated on other possible reasons for the resurgence. They mentioned sound quality and lack of DRM as possible causes. Sound quality can and will be debated, but DRM rates a resounding 'Duh.'"
From a collector's stand point, vinyls never really faded from popularity. I still have all of my old vinyls and purchase new ones today by more current bands.
People are buying vinyl because it sounds better than digital recordings, and then using a USB turntable to make digital recordings of their vinyl records.
What am I missing?
There's another reason that no one has mentioned yet. More space for cover art.
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A lot of vinyl-philes have this strange notion that an analogue recording is somehow capable of storing a perfectly accurate continuous waveform that is superior to digital media precisely becasue it is continuous rather than discrete. In a perfect world that might be true. In reality, it is not.
Four basic things contribute to the fidelity of all recording formats:
1. The tolerances of recording equipment. (e.g. How closely the signal produced by a microphone resembles the soundwave that generated that signal.)
2. Generational loss in mastering
3. Manufacturing tolerances that affect playback
4. Tolerances of reproduction equipment.
All formats are limited by #1, and #4 is in the hands of each individual end-user. (i.e. If your stereo sucks, what format you prefer won't matter much.) However, number 2 and 3 are biggies.
Generational loss means that if you want to do anything more than slap a live recording onto a LP with no post-production whatsover, the quality will suck. Nobody masters albums in analogue these days. 99.9% of the vinyl being released was mastered digitally and then dumped back to analogue, so kiss that analogue "magic" goodbye.
The manufacturing tolerances of LP's are also a huge issue. When was the last time you picked up a micrometer made out of vinyl? It's not exactly the most ideal material for making something that has to have hyper accurate spatial dimensions. It's easy to scratch, and has a large coefficient of thermal expansion. Just play it back at a different temperature than it was cut at and you're already pretty badly off. The tolerances of a pressed vinyl disk are also larger than you might think, and have the effect of greatly reducing the practical information capacity. (i.e. In theory, analogue recordings contain infinite infomation. If you could record a waveform with even just very very large precision in vinyl, digital media would be useless because you could pack much more data into an analogue pressing. Digital media dominates today. Guess why? The precision of vinyl sucks dingo balls.) Everything that can go wrong with vinyl will have a direct impact on the sound. The lowly CD, by comparison, has built in parity information that allow any decent CD-reader to extract bit-perfect copies that would be identical to the master.
That being said, many CD recordings do suck, but that's the fault of mixing engineers who want to push it to 11 instead of mastering at an appropriate volume that won't clip the waveform. If a recording is mangled in this manner it's going to sound like crap no matter what you record it on.
Others like Mark Farina use cds. Final Scratch http://en.wikipedia.org/wiki/Final_Scratch is still in use as well.
Judging by what was seen at the winter music conference this year, th stand set-up is four decks- two for cds and two for vinyl. Five years ago vinyl was the standard, but times are still changing.
Vinyl is still in common use, esp. for local or regional artists, but of the people I know who actually make their living off of playing music none use vinyl exclusively anymore.
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The last two records I bought on vinyl (the new records by Of Montreal and M. Ward) came with a coupon for one-time download of DRM-free MP3 versions of the album tracks from the label's Web sites. So I get the big cover art and the intangible experience (they're both double albums on vinyl) but I can still play 'em on the computer without sweating over the process of digitizing vinyl.
Fact is, the vinyl version of the Of Montreal record (which is awesome) has a scratch that makes track 3 repeat the same crazy groove over and over, and it sounds intentional and much, much better than the digital version, which now seems weirdly short. And it comes with four bonus tracks, which are included in the download too but not on the CD version. Obviously some small record labels are betting big on vinyl as a way to keep people buying records, and I'm all for it.
Well, an interesting thing happens when you compare CDs and vinyl records. Turns out that CDs do a much, much better job of reproducing the original recorded waveform than vinyl. I.e, for sound fidelity, CDs totally kill records. It's not even close.
Now the interesting part. It seems that humans don't really care about sound fidelity. They care about things sounding good, which is actually not the same thing. The vinyl records introduce a whole range of coloring distortions into the audio. This is made far worse by the noise reduction circuitry and lousy, thermally varient amplifiers (I'm talking to you, tube-amp owners). This radically changes the way the sound comes out (go ahead, compare the waveforms using an oscope). It also makes them softer, warmer, and generally more pleasant. The real world has a lot of harsh edges, ringing tones, and crackles that really don't sound too pleasing.
So, in conclusion, vinyl is crap for reproducing audio. It's good for making sounds pleasing to humans (except for the horrible scratching sound, of course). Ever wonder why the totaly voice-synth'd Britney Spears albums sell so many?. It's the same reason that people like vinyl records.
Have you seen and heard a DJ with vinyls? I mean, a real DJ, someone who mixes. I was peacefully sipping some malt liquor at a random electro industrial bar on a slow day. It was probably in the middle of the week; I recall that we were no more than five in the place. An electro industrial bar is not a place where you expect a skillful DJ. You expect a DJ knowledgable in the latest trends with a huge collection of obscure music that he had from download^W import from Germany or something like that. Songs go one after the other and there is some effort to keep that BPM constant and to make the transition beat-into-beat. I thought that this was the essence of mixing. Then, out of nowhere, came this rave DJ. He was actually a former electro industrial DJ who was visiting his former workplace. And he made a set.
I don't know how to describe the experience. He started a hard song on the CD player (Funker Vogt I think) then he attacked the turntable. He started with a Depeche Mode vinyls, and I hear you scream at the idea of eletro pop being mixed with Funker Vogt, but what he did was brilliant. He jumped on the EQ and isolated the good baseline so typical of Depeche Mode and gently blended it into the hard stuff, just the baseline. A moment later the vinyl was doing backflips over his head; he wanted to plug in voice sample that was on the other side. It was almost instantaneous, he waved his hand over the EQ, the voice sample played, the vinyl flipped again and we were back with the baseline. We assume that vinyls have poor seek time but, in the hand of an expert, a vinyl will seeks much faster than a CD. The DJ continued his dance, mixing in some elements of trance and goa, building an elecro industrial song out of other songs from a wide repertoire of electronic music. When he left, he was not the resident DJ after all, nothing was the same anymore.
I had discover that mixing was in fact a form of composition but it was all gone. I now pay attention to the work of the DJ. The DJ is an artist an his medium is extremely expressive. A good DJ will keep the dancefloor full but only a greet DJ will coerce people into dehydration and renal failure. When I see a DJ lifting the dusty cover of the turntable, I know that I'm in for a good show. I keep the ear open and I enjoy this rare skill that the CD almost killed.
When you said near CD-quality, you weren't thinking of 8 track tapes were you?
Let's try the math again. First many digital radio stations use ABBAcast or something like it for near-CD quality at 33 to 40Kbs. Even if it's not CD quality it's certainly higher quality that anything that came off the vinyl in the first place. But let's ignore that and incorrectly assume we need 128kb/sec and see how the math comes out.
Audio modems don't actually use the full spectrum of the phone. last I looked they used about 3Khz. Now a vinyl record has a lot of bandwidth. the main limit on the bandwidth is the needles voltage/amplitude response falls off. That's why you equalize them. (which is why your stereo has a different input jack for phono than for tapes) You can only equalize then so far and get a decent sounding thing but you could push this much further if you went to a an analog coding scheme other than amplitude modulation. (hey that's what modems do! how about that).
So just to have some numbers lets make some up that are not completely crazy. Lets say we could push audio signal recovery out to 30Khz. So that gives us ten 3khz wide modem channels. And since the record is stereo that gives 20 total channels.
20*56kb/sec = 1060 kb/sec
1060kb/sec
Hey! that's what I claimed to begin with. I claimed I could fit about 8 cd quality channels (and here we mean 128Kb/sec) on a Vinyl record.
But wait! that's actually a gross underestimate. What determines the bits per second on a modem. it's a combination of two things, bandwidth and signal to noise. A vinyl record has enormously better signal to noise than a telephone. So the number of bits pers second my vinyl can support is vastly higher than the phone.
the shannon capacity scales as:
Bandwidth * log_2 (1 + SNR)
(where SNR is the singal to noise ratio in power)
to if I had 128 times better SNR on a record then that's about 8 times more bits per second.
So you see my Digital Vinyl smokes your CD.
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I think we just witnessed the nerd version of a bar brawl...