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Pro DJ Location: Jamaica
Registered: 25 May 2004
Posts: 591
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Posted
Ok, can someone point me in the right direction as i know this must have been discussed already, i searched, but found nuttin really.
Basically, id like to know how (the technology) the CDJ's replicate/simmulate scratching, and is this replication/simmulation 100% in comparison to Vynil. And on what basis was this tested, was it mainly test by ear and sound comparisons ??? or did it get far more technical than that ? |
Pioneer Freak Location: SoCal
Registered: 02 July 2003
Posts: 8352
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Posted
There was a lot of technical research that has gone into the Scratching effect, and reproduction. What are the specifics, you would need to take that up with the R&d teams in Japan. There are some things that are proprietary to Pioneers equipment, there for not allowing the general public access to it.
What are you trying to figure out? Pioneer National Trainer & Product Specialist |
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Pro DJ Location: Jamaica
Registered: 25 May 2004
Posts: 591
|
Posted
Well i figured as much it would be some Top Secret data. . . but mainly id like to know the basics of how it works ......
More so id like the know if its at the limits right now, or if its sumthing they can improve on (not saying it needs improvement) Im a techie so the technical aspects of things interest me. |
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Pioneer Freak Location: SoCal
Registered: 02 July 2003
Posts: 8352
|
Posted
I think that if you told someone 4 years ago that there would be a DVD X1 model out that manipulates DVDs the same way the MK2 does with CDs, they would have doubted it. That said I am not a big techie, so i don't really know how far they can go with the technology. I have to figure since everybody is making their own versions of the CDJ, that there is more left to do with it.
Try Popular Science, they have done stoies on the CDJ and the X1. Pioneer National Trainer & Product Specialist |
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Pro DJ Location: Jamaica
Registered: 25 May 2004
Posts: 591
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Posted
Ok cool goin check out Popular Science.
In all fairness. it was quite possible to manipulate Video in a sence.... not as hype as it is now.... but it could be dun. minus the sratching, .. all the goodies..... but TV stations had advance ways or searching though movies..commecials. etc..... using jog dials, it could also be cued up , which all could be dun in realtime... so the DV player didnt really surprise me. The CDJ's sure did  |
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Pioneer Freak Location: SoCal
Registered: 02 July 2003
Posts: 8352
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Posted
I am refering more to the size and cost to do all that the X1 does. I agree that with the right software and Hardware, you could edit and change Video, but it was a very expensive process and you needed a fair amout of gear. Now you have a X1 that works identically to the MK2 with adding MP3 and DVD, pretty cool set-up...
Pioneer National Trainer & Product Specialist |
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Pro DJ Location: Jamaica
Registered: 25 May 2004
Posts: 591
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Posted
Yup . sure is .. Movie Studio in a box
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Resident DJ Location: Miami, FL, USA
Registered: 09 April 2004
Posts: 344
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Posted
Quote: I am sure it's a combination of both. It's pretty much like that for all audio electronics: the circuits are prototyped "by the books" and then tweaked based on listening and spectral analysis. The basic methodology for reproducing a scratch via DSP graph is out there in academic circles. You might look amongst the externals or abstractions available for the various branches of the Max patcher programming language. It's a variation on the algorithm that adjusts pitch, the challenge is in doing this computationally-intensive operation in buffered-realtime and also in tweaking it to make it sound aesthetically pleasing. I'd suspect that a serious modeling algorithm is also used to regain lost low and high end material during periods where playback is far above and below 100%. I am not aware of any significant offerings to this end in the public domain. Pioneer probably invested significant resources in this, and it would probably be this model that would account for the "Pioneer sound" of these units. I'd say that this sound is more true to vinyl, in the widest possible playback range, than competing units. |
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Pioneer Freak Location: SoCal
Registered: 02 July 2003
Posts: 8352
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Posted
It speaks to PIONEERs development of the Legato Link Conversion with in Digital sound. Time, effort and $$$$$ get to the level of quaility that Pioneer has achieved...
Pioneer National Trainer & Product Specialist |
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