MPC3K Outputs behave very strange..

...in trouble.

It is my heart - of the studio - my Akai MPC 3000LE V3.11

I own this beauty for 10+y.
I found out that the outputs behave very strange.

Scenario:
I put the same sound on 8 different pads, and play out on Outputs 1-8
record 8 straight tracks 1-2-3-4, straight Q
Audiointerface In (Lynx) 1-8 is connected to all MPC Outputs 1-8.
Normally each sound should be played out at the same position.
But not mine.
Output 1 seems to be on the grid, but then 2-8 seem to be late and later.
Output 2 is 70samples late
Output 3 is 138s late
Output 4 is 213s late and so on
Output 8 is 493s late
looks like every single output sends about 70samples later than the previous.

(On top of that-Output 7 delivers a distorted snd.)

I did a lil research, but could not find anything.

Not sure if it is a hardware (Outputboard) problem as "the delay" occurs quite constantly.

Any idea?

How is the audio when played through the stereo outputs ?
When did the individual outs begin playing up, or was it always like that?

first i discovered that output 7 sends out a distorted sound,
that was last year..
continued to use my mpc3k as always, just nothing connected to out7.
had enough outs so i did not worry that much about it.

last week i did some measure as i have innerclock sync gen proII
and found out about that "output issue"

i will check the stereo outs tomorrow.

thanks in advance

yes it happens on the stereo outputs too.
output 2 is about 70 samples late
Output 5 .. 281s late
Stereo Ouput left ..427s late
Stereo Output right 493s

every output is about 70s later than the previous.

Well I never heard of such a problem before. If it were me I'd look inside to discount anything obvious like loose connectors, components, cold solder joints etc. Maybe look into all components concerned with audio signals and clean all the contacts thoroughly.

Where is Rohan when you need him???

exactly, where is rohan?
i contacted him when that "distorted output 7" problem occured,
he mailed back that he will look at it and..silence.
hope he is better soon!

Are you recording all 8 outputs at the same time, in a single take?

Is the MPC synced to the DAW, and does it do it when not synced?

If I get a chance, I will give it a try on mine.

Q: Are you recording all 8 outputs at the same time, in a single take?

A: Yes, I do.

Is the MPC synced to the DAW, and does it do it when not synced?

A: Tried both, happens all the time.

Thanks for helping out!

just checkin does it work fine without hooking up the audio interface?

try mpc directly to monitors if u haven't

I had many suspects on my list (direct outs of my desk, lynx inputs, zip drive, midi, monitor..), but I am really sorry to say that my MPC3K is the problem.
Outp 1 is on the grid, but all following Outs (incl Stereo Outs) send out late & later.
Outp 7 delivers that distorted flag added to the snd, and is a different story and also off the grid.

Thanks in advance!!

I did a lil youtube video.

http://www.youtube.com/watch?v=W69f7nL1 ... e=youtu.be

Distorted ouput is usually DAC chip for that output. I had the same problem with my 3KLE.

thanks for that information.
now i only need to find out why outputs play out late & later.
looks like a software problem..

Just tested my MPC3000LE, with 3.50, it does the same thing.

Something like 61 samples between each output, with one difference at about 100 samples, when recorded at 44.1kHz.

I suspect it is 'normal', just the way the MPC3000 operates, and no one has noticed before.

Probably not noticed due to most people not playing exactly the same sample, at exactly the same time, so the phasing to the sound when not being played back exactly in sync was not heard.

Do you think it would make a difference if you used a copied sample for each output? In effect it will be the same sample but coming from 8 different locations in the RAM. I would be interested to know if each output is actually late or if it is just the fact that it is trying to access the same sample

I suspected that as well.

After it first did it with using the same sample, on the same track, I then tried the same sample on different tracks, then made sample copies within the MPC for each pad, and tried that as well, with the same results.