Forum to discuss all matters relating to the MPC1000 and MPC2500 operating systems created by 'JJ' (all versions).
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By B.A. Fri Jan 11, 2008 3:10 pm
mikolo wrote:could it be to do with loading samples originally chopped in the akai os? I remember reading somewhere that the akai os "smooths" the attack portion of the sound by a few milliseconds to get rid of sounds that haven't been chopped close enough to 0db. This can then produce clicking in other os's.


I actually haven't heard any popping now that I have been using my old samples that were not created on the old MPC OS. Now that I compare the samples I chopped and the ones that the previous owner included in the CF card that he made on the old Akai OS, mine sound alot cleaner. Besides that all I've done differently is unplug the USB cable when I'm not using it. So far so good. Thanks for all your help guys, I'll let ya'll know if this problem continues.

Peace,

B.A.
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By rinseout Fri Jan 11, 2008 3:16 pm
I dont think it has anything to do with the usb cable, that would be really weird.
But JJ changes sth. about either the attack or the decay, i think the akai os added a little fade which JJ then removed iirc. That could be the cause.
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By B.A. Sat Jan 12, 2008 1:12 am
rinseout wrote:I dont think it has anything to do with the usb cable, that would be really weird.
But JJ changes sth. about either the attack or the decay, i think the akai os added a little fade which JJ then removed iirc. That could be the cause.


I think that's what was causing it too, someone else mentioned that on a previous post.

mikolo wrote:could it be to do with loading samples originally chopped in the akai os? I remember reading somewhere that the akai os "smooths" the attack portion of the sound by a few milliseconds to get rid of sounds that haven't been chopped close enough to 0db. This can then produce clicking in other os's.


I'll just have to wait and see if the popping comes back.
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By rinseout Sat Jan 12, 2008 1:22 am
Oops, didnt read that one, sry

By blippo Sun Jan 13, 2008 2:23 am
rinseout wrote:I dont think it has anything to do with the usb cable, that would be really weird.
But JJ changes sth. about either the attack or the decay, i think the akai os added a little fade which JJ then removed iirc. That could be the cause.


I read it somewhere in a rush that the usb cable get interuptions.. and was making crackling noise on ocation..

This would be true because ive heard the crackling noise when the mpc has been idle... with the usb inserted

This could also be true because i read that usb connections are always busy, meaning that it sends information all the time, while firewire don´t send signals when its not in use

This is why you should get firewire audiocards instead of usb..
You have alot more latency on usb beacuse it always sends information..
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By B.A. Sun Jan 13, 2008 8:23 pm
blippo wrote:
rinseout wrote:I dont think it has anything to do with the usb cable, that would be really weird.
But JJ changes sth. about either the attack or the decay, i think the akai os added a little fade which JJ then removed iirc. That could be the cause.


I read it somewhere in a rush that the usb cable get interuptions.. and was making crackling noise on ocation..

This would be true because ive heard the crackling noise when the mpc has been idle... with the usb inserted

This could also be true because i read that usb connections are always busy, meaning that it sends information all the time, while firewire don´t send signals when its not in use

This is why you should get firewire audiocards instead of usb..
You have alot more latency on usb beacuse it always sends information..


If that is the case, then maybe that's why Akai chose to have their OS work the way it does and make it so you have to disconnect the usb before you continue working on your projects. Maybe they knew that it could cause occasional popping if left plugged in. Interesting...
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By rinseout Sun Jan 13, 2008 9:26 pm
B.A. wrote:If that is the case, then maybe that's why Akai chose to have their OS work the way it does and make it so you have to disconnect the usb before you continue working on your projects. Maybe they knew that it could cause occasional popping if left plugged in. Interesting...


Oh yeah, Akai is that smart :roll:
I would not recommend plugging cables in and out all the time with no gear at all. I owned a MPD16 years ago and had to unplug the usb from time to time, the usb jack was the first to break, later the midi jack followed.

Still, never had that problem with the usb cable connected all the time, never heard of this either.
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By crossings Sun Jan 13, 2008 10:10 pm
i never use the USB cable anyways... it's better to just get a separate usb flashcard drive for cheap... they transfer files quicker and you can also use them without having to stop what you're doing on your mpc.
By Lousy Facelift Fri Jul 27, 2012 3:13 pm
That popping/ clipping/ noise issue or whatever you want to call it has been posted many times already and as far as I know there is still no solution to it. If you call up the support they'll act like they've never heard about this problem which is absolutely ridiculess. Just yesterday I read a seven pages thread in which even the users who first acted like the people who reported the problem must have been hallucinating later on stated they were having the same problem.
viewtopic.php?t=81078
viewtopic.php?f=21&t=49388
Here are just two more links to simmilar post in which the problem is addressed, I'm sure you could easily find many, many more. Notice the date when these threads were posted. I'm really fed up with Akai's ignorance and playing stupid on this problem. The one solution there is is this: Live with it and use the MPC for what it is which is a great hardware sequencer. If you use it as a sampler and pops come up when you're recording, make a new recording and pray it won't happen again. Don't even call up Akai for you'll hear nothing but bullshit. Or maybe you should call them up and give them hell about it I doubt it's going to change anything. I know this sounds bad but that's exactly how it is. Please click on the second link, read the thread and make up your own mind about it.