Point on the "pop" problem

As I said in a previous post I just got an MPC 2500 and I encounter the "pop" problem ( audio "clic" sound that appears randomly while playing ). I read everything I found on the forum about that and I still cant come to any conclusion, it doesn't seem to be any solution ... that's why Id like to make a point about it ...


here is what I can say from my experience :

- the last OS ( 1.23 ) doesn't solve the problem
- it has nothing to do with USB ( as some people said ) , for me it happens with USB unplugged as well
- It really comes from the MPC, changing cables, speakers or electrical equipements is useless
- it really is random, I can loop the same beat for a while and suddenly a pop comes out

I read the forums and it seems a lot ( a majority ? ) of people encounter the problem. Id really like to know , what did you guys do about it ? Are you using your MPC anyway, ignoring it ? did you return it ? does it solve the problem ?

Im in a hurry cos I got to decide if I return it or not and I begin to wonder if its worth it to send it back, im afraid the new one will do exactly the same ...

Im waiting for your advice and feedback.

Thx.

I sometimes get this when i have just sampled something and trying to loop it. But never when playing a beat back.

normaly if you sample the mpc sets the startpoint around 2000, but sometimes it goes magically to startpoint 0 and this often leads to pops or clicks, because the wave does not start at a zero crosspoint.
so have a closer look at the trim screen if you hear pops at the beginning of a sample.
in the case of looped samples it is most likely that the wave is not matching right at the looppoint and thus leading to pops.

peace jo

Thx for your answers but its not a problem with the samples, cos if it was the pops wouln't be random, it would happen on every loop. Thats not the case, I can loop the same beat with the same sample for a while and the pops will only happen from time to time.

Take a look at that post :

http://www.mpc-forums.com/viewtopic.php ... ps&start=0

The problem is well known ...

I dont get it, some people seems to not experience that at all, the only thing I see is bad series or bad batch problem ... that's strange ... and really frustrating.

Im just wondering if its worth it to send it back, thats why I was asking the following questions to people who had the problem : what did you guys do about it ? Are you using your MPC anyway, ignoring it ? did you return it ? does it solve the problem ?

I know what you are talking about. The random pops and crackles that appear during a simple loop ocassionaly.

I find that it occurs when i switch between my recording modes (Analog to Digital) when recording a sample.

I mostly ignore it but if it starts to increase i just switch the MPC of and on again and it will be fine, at least for the next 5 hours anyway...

Probably your internal memory..I had that problem only when i was sampling stuff a left the mp on for awhile.I changed the memory about a year ago and haven't had that problem since.Do you have cheap memory in it?

Actually no I dont have cheap memory, but I dont know , maybe my internal memory is faulty ...
Whatever, I send it back to my reseller to have a new MPC in exchange so I let you know if it solves the problem.

The only thing is that according to what I read on that forum a lot of people seems to have the problem in the past, I would have liked to know what were the situation now for those people, if they exchange their MPC and if it solves the problem for them but apparently those people dont post here anymore so ... I'll see by myself when I get my new one.

I had the same problem the static noise just happened whenever it wanted? did not matter if you were editing programming..etc..I simply replace the memory (akai) original and it hasn't done it for months..this issue really sucked cause here I was trying to show off my mpc-2500 to a group of friends then this static crap would suddenly be present..now I show it off without any worries...love my mpc 2500..good luck

Master Yoda USA

Hay man, yeah i got this problem too! It's pissing me off..

Let me know if the new one is pop-free - i might have to take mine back too.

To Master Yoda, just to be sure to understand right , what did you change exactly, your 16Mb internal memory ( I dont even know if it is possible ) or your 128 Mb expension memory cheap ?

That makes me asking myself another question, when you add 128Mb cheap to your MPC, is the original 16Mb memory still used ? Because if its not it could explain why Adding memory cheap makes the problem disapear, it could come from faulty memory ...

Thx four your answers.

aronofsky wrote:That makes me asking myself another question, when you add 128Mb cheap to your MPC, is the original 16Mb memory still used ? Because if its not it could explain why Adding memory cheap makes the problem disapear, it could come from faulty memory ...

I think he meant he replaced one Akai 128MB memory board with another one. You can't exchange the original 16MB, and when you put in 128 it still just shows 128, so I guess the 16MB are bypassed then.

But I used the 128MB expansion from the beginning, and had those pops occasionally too.

When you say "occasionaly", what do you mean exactly ? Because I had at least one pop every 5 or 10 minutes ( more or less ) with mine ...

Definitely not that often. I assumed it had something to do with the USB connected to the PC, uneven electrical potentials, and that together with the old OS which did even worse things after using USB...something like that.

I haven't had it with the latest OS's, but I haven't used it much lately either.

Yeah mine pops WAAAY more than that - prolly every minute or so (of actual playing time - never when not playing). Makes it impossible to record a track to the computer.

I'ma go have a talk with the grifters that sold it to me, see what they say..

Whoa, last entry 2007? Well it's 2012, go phone up Akai and they will still pretend as if they've never heard of this popping/ clipping problem. I know because I just called them up yesterday. You know what you can do when this happens on your MPC?...Nothing! Now isn't that good to know? Just forget all the effort you would have to put into this. If you do some research you'll find that this problem has been posted many many times. Check out this link and swallow your tears:
viewtopic.php?f=21&t=49388
Seven pages long, dated 2006. As I said I called up Akai yesterday, the guy acted as if this was completely new to him. Go figure...