Share your knowledge on these two classic MPCs
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By redgreenz Tue May 03, 2005 7:06 pm
Whus a goin now yall ? I'm looking for an audio editor that will let you change .wav files from 16 bit to 12 bit. Anyone know of something that will do this. I use Recycle and Audacity, but I haven't be able to accomplish it with either of those.

peace.

By 2wice Tue May 03, 2005 7:34 pm
Awave can convert almost any format. I havent used it for snd files cause my disk drive is bad but I think it will probably work as long as you have 3.10 OS. Someone else here has probably tried it and can verify. It has a batch processing feature that makes things move really fast too.

heres the website http://www.fmjsoft.com/
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By redgreenz Tue May 03, 2005 9:03 pm
Thank 2wice. I should have mentioned that I'm running OSX, so Awave won't work for me :cry: I'll keep searchin.

peace

By homershines Thu May 05, 2005 12:50 am
Greenz;
What are you ultimately trying to do?
If you are using a MPC60, you can use MPCPGMMaker to convert the samples to work with thw 60.

Peace.

By elmacaco Thu May 05, 2005 1:56 am
I think he wants to convert 16 bit samples to 12 bit to load in a 3000.

By mpc3000 Thu May 05, 2005 3:19 am
" Anyone know of something that will do this."

Do you want actual 12-bit or the 12-bit effect? I would suspect '12-bit effect' since I know of nothing that could use real 12-bit wav files.

Audacity can, or any other audio editor that can change volume. Just reduce the volume by the ratio difference in bit depth and raise it back up (normalize). For example to convert 16 bit to 12 bit:

12-bit = 2^12 = 4096
16-bit = 2^16 = 65536

Ratio is 4096/65536 = .0625

So multiply the volume by .0625 then run a normalize function. This 'quantizes' the 16-bit data into the nearest 12-bit values. This is an age old trick.

By elmacaco Thu May 05, 2005 3:56 am
Is that what the MPC Editor Does? The volume thing? I thought it Zeroed four of the bits.

He's on a Mac, so if the PGM Maker can do the 12 bit export then it would be perfect (but not as perfect as the Editor IMO)

hey that might be something you Guys might want to add to the 3000 OS 3.20. a convert to 12 bit option. You might be able to copy the 3.10e code that does it for the 60. I know the 3000 can load MPC60 12 bit files.
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By redgreenz Thu May 05, 2005 2:52 pm
Homershines,

Elm is right. All I wanna do is convert 16bit .wav files to 12 bit. I used to use my 2kxl to resample, but I just got rid of it. I have Audacity, so I'm gonna try MPC3000LE's suggestion. BTW, does the MPC Editor program from midicase automatically export MPC3000/60 programs in 12 bit by default, or do you have to tell it to do it. I just tried it here at work, but didn't see anything that gives you the option to modify or change the bit depth.

peace
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By redgreenz Thu May 05, 2005 2:56 pm
elmacaco wrote:Is that what the MPC Editor Does? The volume thing? I thought it Zeroed four of the bits.

He's on a Mac, so if the PGM Maker can do the 12 bit export then it would be perfect (but not as perfect as the Editor IMO)

hey that might be something you Guys might want to add to the 3000 OS 3.20. a convert to 12 bit option. You might be able to copy the 3.10e code that does it for the 60. I know the 3000 can load MPC60 12 bit files.


havin a covert to 12 bit option would be the shyt!!!!!!!!!

By elmacaco Thu May 05, 2005 3:42 pm
When you hit Export Programs and samples, you get a little box that has 3000 format, 2000 format and XL format I think.

Right below the 3000 check box is another check box that says reduce to 12 bit, you check that and all your files will be 12 bit files.

Oh, and that was MPC3000 up there, not MPC3000LE.

MPC3000 actually explained what happens to me once, which I'll probably get wrong, but hopefully he will correct any errors.

a 16 bit file kinda looks like this 2945 4458 1776 2843

a 12 bit file is like this 264 437 944 368

When the 60 loads a 3000 file, it drops the last number to make it 12 bit.

When the 3000 loads a 12 bit sample, it adds a zero to it to have it work in the 16 bit system, but it is just a placeholder, the recording doesn't change quality.

so if this file is loaded into your 3000 = 264 437 944 368
It turns it into this 2640 4370 9440 3680, which is essentially the same shyt.

The MPC Editor can take a 16 bit file like this one 2945 4458 1776 2843

and export it to 12 bit making it like this 2940 4450 1770 2840

Reducing the data to 12 bit fo yo punk ass,

I love the MPC editor.
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By redgreenz Thu May 05, 2005 5:23 pm
LMAO!!!! Thanks Elm, MPC3000 and everyone else who responded. Yo Elmacaco, what's the story behind your new avatar ?
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By redgreenz Thu May 05, 2005 5:41 pm
elmacaco wrote:When you hit Export Programs and samples, you get a little box that has 3000 format, 2000 format and XL format I think.

Right below the 3000 check box is another check box that says reduce to 12 bit, you check that and all your files will be 12 bit files.



I just tried exporting using the MPC Editor from midicase, but I didn't see the checkbox to convert to 12 bit. I'm using version 3.0.38.

Just to clarify, my old PC at home blew it's power supply, so I'm only using a PC here at work, and that G5 at home, which is why I mention both the MPC PGM Maker (MAC) and the MPC Editor (PC)
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By djdynasty Thu May 05, 2005 7:26 pm
yeah EL..Whats up with your avatar? I really liked the cat.

By elmacaco Thu May 05, 2005 10:46 pm
The Puma will be back, but that's quasimoto runnin with a brick in honor of his new album that dropped on the 3rd.

Yall should cop that album too, and this first if you don't have it.

My MPC Editor is 3.0.32, kinda weird that it's not there in the new one.

What's the deal mike?

maybe it's somewhere else in the program.
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By redgreenz Fri May 06, 2005 6:15 am
elmacaco wrote:He's on a Mac, so if the PGM Maker can do the 12 bit export then it would be perfect (but not as perfect as the Editor IMO)


Just got word back from the author of MPC PGM Maker, no love on the 12 bit export, only 16 bit. I did try MPC3000's method and it worked like a m/f!!!! Now I can write a program to automate the process. Thanks again y'all.