Forum to discuss all matters relating to the MPC1000 and MPC2500 operating systems created by 'JJ' (all versions).
By MadPsyance Thu Feb 24, 2011 6:58 pm
Hello, I was reading the "Beat Making on the MPC for JJOS" ebook I bought awhile back and it says,

If you have no memory expansion in your MPC, you have 2 minutes 16 seconds of sampling time, or twice as much if you are sampling in mono...


I only have the default 16 MB, and even with the autoload OFF, I'm only seeing 38 seconds of sampling time when I hit the "window" button, there has to be something I'm doing wrong, right?

I've googled the hell out of this and searched these forums and have not found an answer to this! Thank you for any replies.
User avatar
By crothers Thu Feb 24, 2011 7:02 pm
what is 38 seconds x2?
also, what is different about a stereo sample compared to a mono sample?
User avatar
By mp3 Thu Feb 24, 2011 8:09 pm
crothers wrote:what is 38 seconds x2?


It ain't 136... :lol:

Anyway, there's something fishy going on here.

That book quotes the same sampletime figure that's on Akai's website, but the math is wrong. A stereo, 60 second wav file (at 16/44) is about 10mb in size. That means that 16mb should hold about 90 seconds in stereo, or 180 seconds in mono.

But Akai's website says 16mb = 136 seconds mono, and your mpc says 38 seconds (presumably stereo). WTF?
User avatar
By le rat Thu Feb 24, 2011 8:20 pm
I'm not sure but I'd bet that you have less memory dedicated to he SEQ parameters in the Akai OS. (When I switch my mpc on with JJOS2XL 2.12 I have 4,6mb free for that purpose)
User avatar
By emceewhiterabbit Sun Feb 27, 2011 11:22 pm
make sure you delete all the default sequences and samples, then you should have more sample time to play with before your new RAM arrives.
By mr.pleasant Sun Feb 27, 2011 11:25 pm
MadPsyance wrote:I have JJOS, and I have a 256mb coming in the mail.

haahahahhhahahaaha :lol:
i think u might need more then science.... sumthing like " sense "
User avatar
By emceewhiterabbit Sun Feb 27, 2011 11:27 pm
mr.pleasant wrote:
MadPsyance wrote:I have JJOS, and I have a 256mb coming in the mail.

haahahahhhahahaaha :lol:
i think u might need more then science.... sumthing like " sense "


he should be alright dude, i can't be sure but i think i have the same, and the MPC automatically reads half the memory.
User avatar
By mp3 Mon Feb 28, 2011 5:24 am
the 1k takes a 256mb chip.

If you keep your mouth shut, people can only wonder about your intelligence...
User avatar
By emceewhiterabbit Mon Feb 28, 2011 6:15 pm
mp3 wrote:the 1k takes a 256mb chip.

If you keep your mouth shut, people can only wonder about your intelligence...


i have been a secret fan of your avatar for quite some time. who is the gentleman within it, and where does it originate from?
By mr.pleasant Mon Feb 28, 2011 6:56 pm
mp3 wrote:the 1k takes a 256mb chip.

If you keep your mouth shut, people can only wonder about your intelligence...


:lol: Mr.Simpleton ( like urself Mp.. ) always gotta talk cyber trash.......
in thee real world, ur r'ass would of gotten a bloodclot CHOP.... so for next time, Go suck ur mother !!! :wink: :twisted:
User avatar
By mp3 Mon Feb 28, 2011 9:21 pm
mr.pleasant wrote: :lol: Mr.Simpleton ( like urself Mp.. ) always gotta talk cyber trash.......
in thee real world, ur r'ass would of gotten a bloodclot CHOP.... so for next time, Go suck ur mother !!! :wink: :twisted:


Image