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Topic: USB-MIDI (Korg M1) (Read 41372 times) |
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Matt_Harris
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I have an AMAZING Korg M1...only if it would work!
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USB-MIDI (Korg M1)
« on: Jan 27th, 2009, 9:33am » |
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Hi there!
Basically I bought a second hand (dusty!) Korg M1 synth yesterday in original box, original manual, great internal and external condition, but have thus far failed miserably to get any joy out of it! Turned on synth and the expected "INIT" was apparent on all settings.
The guy I bought it from said that the last time he used it was about a year ago and gave up on using it as the internal battery died on him and he didnt have a clue on how to replace it! Anyway, I did the mandatory research, downloaded the Sysex Library for my macOSX and incase that didnt work I also downloaded MIDI-OX for my PC. Finally grabbed the Factory preset sysex file from the KORG site.
Now then, battery replaced....not a problem at all. Hooked up the MIDI cables to the synth from my Lexicon Omega interface. Turned the M1 on and enabled the synth to receive MIDI SYSEX. Everything enabled.
Transfered Sysex file to M1 with Sysex Library with default speed.....No success. Attempted again with speed turned right down to 5% and now the result was different. All the patches are correctly displayed but the sound is horrendous! The keys aren't corresponding to the patch name, and are totally random...Even random volume fluctuations. Awful.
I reset the synth and tried with the PC using MIDI-OX exactly the same result. Even changed the midi cables over just incase. I also read a previous post on here suggesting to lower the buffers and beef up the number...aswell as increasing the delay. Now i am right out of ideas  I don't have a ROM card or anything like that so thats out.
Help? Even some inspiration would be grateful!
Matt 
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| « Last Edit: Jan 28th, 2009, 2:58pm by Matt_Harris » |
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Peter L Jones
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Hit it
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Re: Korg M1 Time consuming problem
« Reply #1 on: Jan 28th, 2009, 2:55pm » |
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How about a thread titled USB-MIDI (Korg M1)?
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| « Last Edit: Jan 28th, 2009, 2:55pm by Peter L Jones » |
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"...Playing fast around the drums is one thing. But to play with people for others, to listen to, that's something else. That's a whole other world." -- Tony Williams
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RUSH2112
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Re: USB-MIDI (Korg M1)
« Reply #2 on: Jul 16th, 2009, 1:01pm » |
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on Jan 27th, 2009, 9:33am, Matt_Harris wrote:Hi there!
Basically I bought a second hand (dusty!) Korg M1 synth yesterday in original box, original manual, great internal and external condition, but have thus far failed miserably to get any joy out of it! Turned on synth and the expected "INIT" was apparent on all settings.
The guy I bought it from said that the last time he used it was about a year ago and gave up on using it as the internal battery died on him and he didnt have a clue on how to replace it! Anyway, I did the mandatory research, downloaded the Sysex Library for my macOSX and incase that didnt work I also downloaded MIDI-OX for my PC. Finally grabbed the Factory preset sysex file from the KORG site.
Now then, battery replaced....not a problem at all. Hooked up the MIDI cables to the synth from my Lexicon Omega interface. Turned the M1 on and enabled the synth to receive MIDI SYSEX. Everything enabled.
Transfered Sysex file to M1 with Sysex Library with default speed.....No success. Attempted again with speed turned right down to 5% and now the result was different. All the patches are correctly displayed but the sound is horrendous! The keys aren't corresponding to the patch name, and are totally random...Even random volume fluctuations. Awful.
I reset the synth and tried with the PC using MIDI-OX exactly the same result. Even changed the midi cables over just incase. I also read a previous post on here suggesting to lower the buffers and beef up the number...aswell as increasing the delay. Now i am right out of ideas I don't have a ROM card or anything like that so thats out.
Help? Even some inspiration would be grateful!
Matt |
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I have an M1 that was displaying "INIT" and not playing the proper sounds. Searched the Internet and found that the battery would need replaced. I replaced the battery and found several different websites explaining how to get the factory M1 sounds loaded back in.
From a Korg M1 standpoint, I have successfully loaded the factory sounds back onto my keyboard. Here is what I did to get this to work (trust me, i spent days upon days trying different things until these settings worked).
I hope this helps anyone with an M1 or anyone else who gets the "Sysex output device: Port transfers data to unit. Wait until transfer is finished and try again" error
Under the sysex view and scratch pad, click Sysex, then configure, you will change both Input and Output buffers to 2500. The Num channels set at 16. The Delay after F7 change to 500 ms and change Ms between buffers delay to 120
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| « Last Edit: Jul 16th, 2009, 1:14pm by RUSH2112 » |
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post2010
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MIDI-OX Rules!
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Re: USB-MIDI (Korg M1)
« Reply #3 on: Aug 13th, 2010, 4:18am » |
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Hiya
After several days panic and frustration I read RUSH2112 suggestions of altering the buffer size. Followed their instructions to the letter and it worked! Easy when you know how. Many thanks 
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mzelden
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MIDI-OX Rules!
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Re: USB-MIDI (Korg M1)
« Reply #4 on: Apr 21st, 2012, 6:56pm » |
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Well, I took my M1 out it was put away for the last 4 years and the internal battery was dead. I replaced it (simple, even a video on youtube) and tried re-loading stuff I saved years ago. I used on old version of cakewalk professional for windows (3.0) 10 years ago to save the sysx stuff. My old computer interface for midi was still serial, and I haven't had a serial port for years. So first I spent about $5 plus shipping on Amazon to get a new USB to midi interface which got here yesterday.
I had most of what I wanted on RAM cards but a couple of those batteries were dead too. So I had to use sysx to get
everything I lost. Mostly sequencer / song data.
My programs wouldn't load with Cakewalk... just garbage sound.
After some research, I figured it was the "too fast of a computer" problem and downloaded midi-ox.
I saw lots of different posts and suggestions of buffers, including this thread, but while sounds seemed okay, seq.
data / songs were wrong, missing etc. I played with it
for several hours last night and have everything working
and all my sysx data loads fine now. What's funny is that my
settings still send the data much faster then Cakewalk does,
and it must be more than just the "wait after F7" that is the
issue. I needed higher buffer sizes than I read
in some other posts which mentioned 3000-5000, although
I also saw posts here and other forums that mentioned
using lower numbers.
To make a long story long, I registered and am posting my
environment and settings here to hopefully help someone else:
OS: Win/XP Pro - SP3
CPU: AMD Phenom II X4 965 (3.42 GHz x 4 cores)
USB interface: Generic from China - purchased on Amazon
http://www.amazon.com/Cable-Converter-Music-Keyboard-Window/dp/B0017H4EB G/ref=sr_1_1?ie=UTF8&qid=1335037503&sr=8-1
To send sysx data to Korg M1, set output buffer parms as follows ( view --> sysx sysx --> configure ):
low level output buffers
size = 8192 bytes (8K)
num = 32
Delay between buffers = 500 ms
Delay after F7 (checked) = 500 ms
The input defaults are just fine for doing a manual dump from
the M1 getting the sysx data to the computer. Here is what
I have:
low level input buffers
size = 256 bytes
num = 32
If you are reading this because you have the same problem,
good luck and I hope this post helped you.
Mark
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mzelden
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MIDI-OX Rules!
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Re: USB-MIDI (Korg M1)
« Reply #5 on: Apr 23rd, 2012, 3:34pm » |
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Since I spent some time over the weekend "playing" with this, I thought I would update this issue again with more information.
I found I still had an issue with some of my sequences I loaded from an "all" dump (prog/comb/seq/global). Everything seemed okay (prog/comb) but when playing some of the sequences I could tell some things were wrong... a sound would stop (like drums) or occasionally some note sustained or was missing etc.
After thinking about this (being a computer person), I looked at the file sizes. The largest ones I had (including a copy of the original factory pre-load of prog/comb/seq/global) was 49K. So I figured why not set the buffer high enough for the entire thing and let the M1 take in the data on its own terms from the
buffer. So below are my new settings and they should work on any computer now, a slower one, or even when they get faster. I did lots of testing and every load worked 100% of the time.
To send sysx data to Korg M1, set output buffer parms as follows ( view --> sysx sysx --> configure ):
low level output buffers
size = 51200 bytes (50K)
num = 2
Delay between buffers = 500 ms
Delay after F7 (checked) = 500 ms
The low level input buffers can be set the same way.
Mark
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antiz
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Engineering a better world
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Re: USB-MIDI (Korg M1)
« Reply #6 on: Apr 19th, 2023, 5:27am » |
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Hi!
11 years update time.
I was in the same position as all the others that have an old Korg M1 with a dead battery. I.e. try a number of program and settings to get the Korg to accept the factory sound file.
Alot of forum tells about output buffers, and the importance of that.
The only SysEx compatable program that could set buffer size (I found) is MidiOx.
I do not understand how the output buffer works, but when using a bigger buffer the transmission was really fast (seconds), and that didn't feelt right. Lowering the buffer size to 128 got a time about 30 seconds which correspond to others succefully transfers.
Maybe the buffer should hold the data and the synt should time the datarate? That was not the case for my MIDI-interface in any case.
To me the MIDI interface should send byts at 31,25 kbit/s, and that should not be any trouble to any computer... (Today) or in 1995...
The Generic USB MIDI interface from PRoC works with normal in/out and I can use a computer program to control the synth, and vice versa.
OS: Win 11
Finally my Korg M1 was filled with the factory sounds.
This is what worked for me:
Latest midiox (7.0.2) Working in Win 11 without any compatabillity issue. Simple installation.
Following normal SysEx loading procedure, but with following settings.
low level output buffers
size = 1 bytes (YES only one byte)
num = 2 (I think I could not set to one? Default to 2)
Delay between buffers = 10 ms
Delay after F7 (checked) = 500 ms
Send SysEx.
The output buffer started to spam send sysex, and one byte payload data.
The 49k took about 8 minutes to transfer (calculated, I was not paying attention all the time, but not hours, nor 30 seconds at least)
Probably could the delay between buffers be lower (1 ms) but I am not really into a new try, just to tweek the time. Now the synth works with the cool instruments and combinations.
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| « Last Edit: Apr 19th, 2023, 5:39am by antiz » |
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