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The cornerstone of MP3 mixing... (pg. 2)
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| Morbius |
Out of interest.... of the people who made the long, knowledgeable posts (Joel + skywarp) do either of you have formal training on the audio stuff you were talking about?
Or did you just manage to amass a large amount of knowledge over time? :) |
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| Joel Fielder |
I'm doing a degree in Music and Sound Recording at Surrey University, UK (www.surrey.ac.uk). I've also learnt a lot of stuff from magazines like Sound on Sound (www.sospubs.com) and Future Music (www.futuremusic.co.uk)
I don't know about Skywarp, but he certainly knows his stuff.
Incidentally, I forgot to say that the frequency response of the ear is roughly 20Hz - 20kHz. You reach a peak frequency response at 18 and then you gradually lose the top end as you get older. The dynamic range is about 150dB. |
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| skywarp |
Hehe, props to Joel, he does seem to know what he's talking about - very refreshing compared to all the "who / what is the best ..." waste-of-time-and-space posts.
'Bout me - I'm just a kiddie with too much info on my hands and some of practical experience. No formal musical education here, unfortunately. But yeah, obviously I never let that stop me ... hehe.
peace |
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| klawd |
It seems there is a lot of animosity against mp3 mixing here. Which I think, is unecessary really. No one is arguing that DJs will throw out their vinyl and start carrying their laptop into clubs instead. In fact
I have read interviews where many of the top DJs (Inc Paul Van Dyk) not only like MP3, but actively support and use it to aquire tracks occasionaly.
It seems a bit over the top to be so agressive to mp3 mixing. What's the problem with it? Not everyone has the money to spend on stacks of vinyl that they may not even like. MP3 mixing is a fun way for people to get more out of their music and maybe even inspire them into producing.
I don't believe that any mp3 mixers think just because they can beatmatch on PC that they will be one day be doing the same at "Innercity". But then, how many amateur vinyl DJs will get to do that either? As long as folks can play around and enjoy their music more, thats all that matters.
My point is to lighten up on mp3 mixing tools and methods.
Most compilation CDs are mixed digitally using PCs anyway.
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| Jocker |
Absolutely agree with you!
Judge Jules said himself that he greets every technology innovation in DJing, one of which is MP3-mixing... |
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| Jocker |
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I'm just wondering, does MP4 (.asf) use any new technique for compressing the audio channel, or the same one? |
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| Phlux |
| quote: | Originally posted by Joel Fielder
Theoretically, vinyl is the ultimate recording system because it has an infinitely high sampling rate. Unfortunately, it's dynamic range is only about 60dB because of the noise floor.
Any questions? |
ya, doesn't doesn't the second statement contradict the first?
what is the "noise floor"?
and you guys are all fantastic by the way, VERY interesting stuff!!:) |
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| Phlux |
| quote: | Originally posted by tu_face
This is why if you have a good enough turntable and amp, vinyl always sounds better than CD. Ever wondered why professional DJ's never use CD? Well now you know! :)
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have you considered that most professional, high profile dj's never had the CD players (that have some out in the last year or two) when they were starting out?
they HAD to use the vinyl format, because thats not only where the pitch adjust was, but the tunez themselves..
now both of those features are available in a better sound format..
and PRO dj's DO use cd players..
Paul van dyk was using the pioneer CMX5000 when he came to T.O. a few weeks ago. the control unit was mounted above his mixer..
I know this for a fact because i own the unit myself and could tell by looking at these two marks in the front/center of the control unit (i was up front most of the night)
id love to hear some response to this |
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| Phlux |
| quote: | Originally posted by Morbius
But a key has only 2 states: off or on. Imagine if you could only control crossfaders and records and so forth with either on or off, not variable speed.... just think of the extra accuracy an analog system gives you to keyboard input in lets say, a racing game :) |
great analogy!!
What are everybody's thoughts on the pioneer CMX 5000 jog dial?
i own two technics as well (not a big record collection yet, im still hesitant about commiting to the decks).. and i find that this jogdial has a very similar FEEL to grabbing a vinyl. The most important difference being that my fingers aren't actually hurting the soundquality of the recording.
I have yet to understand the physical science of soundquality (samplerate frequency dynamic rage etc). I will be learning this year when i attend the Harris Institute for the Arts (not that u care),, but until then im left with my general knowlege of sound and physics. With this knowledge, i am left in total confusion as to how a recording thats extracted by two solid surfaces making friction together (vinyl and needle), can possibly be comparible to a source that is digitally mastered and extracted in digits. Say i take a vinyl and a cd and play them 10000 times, without handleing either unit at all, i know that the cd would be exactly the same at #10000, but what about the vinyl??, and what if i did touched the surface of the vinyl often? what if i rubbed it? what if i caressed it? what if i made love to it?.. k, im getting a little carried away carried away hear.. i haven't slept in 2 days, getting a little loopy... ANYway, would it sound the same?? |
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| Joel Fielder |
Phlux:
Sampling rate and dynamic range *are* related (see oversampling thread for details). In traditional techniques, sampling rate affects frequency response whereas dynamic range is determined by bit-rate.
The noise floor is what you hear when nothing has been recorded onto a medium. On vinyl you hear the natural imperfections, but since it is analogue it theoretically has an infinitely high frequency response (actually it's limited by the width of a PVC molecule). In practice, howver, there are other factors such as needle quality and so on which significantly affect signal reproduction.
Dynamic range is defined as the difference between the highest recordable signal level without distortion and the noise floor. |
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| Phlux |
"since it is analogue it theoretically has an infinitely high frequency response"
why cant a digital source reproduce the same frequency?
so the sound qualtity on cd's is NOT better?
feeling stupid, |
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