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#1 ASR-X » Transwave on your ASR-x : the nerdy way » 2018-06-14 19:55:26

Replies: 0

hey, I got since few week an asr-x pro
Very nice tank sampler. Powerful sound.

I tried to hack the user program file (.sou), to unlock the transwave setting with an hex editor, and it works.
I'm working on a python script to make everything easier, but any help would be appreciated to make a small app !
There's not so many ASRx users.

You can find some explanation here : … files.html

#2 Re: EOS 4 » E6400 Ultra does not boot at all » 2018-06-14 19:43:17


Hello, I have the same problem since few days on my e5000.
reading service notes, it seem to be a FGPA test who don't pass.

I added an 8 analogue output expansion card few weeks ago, and didn't power up the emu more than 5 times since I got it.
I was thinking about the PSU didn't have enough current to power the expansion,
But unplug the card didn't solve the problem, even if I can notice a voltage drop on main power connector (the red one), when the expansion is connected.

Did someone ever purchased a new bootrom and repair its emu that way ?
@mrscsi did EEPROM Reader/Writer had been a success, even if it was a faulty connector problem ?

#3 Re: EOS 4 » 6862 D-WAM ASCII Digital I/O » 2018-04-25 22:00:07


oh bad news ! I don't have enough time right now, but i'll continue to post any info on this thread.
(there plenty of new PSU on ebay for E-mu ultra series)

#4 Re: EOS 4 » 6862 D-WAM ASCII Digital I/O » 2018-04-07 19:07:54


ok, I agree clock input shematics haven't so much info on used components, and understand why you prefer have a photo.
(75 ohm switch and optional jumper)
On the other hand the output is a lot easier, you can omit the ferrite.
If world clock is enabeled with CS8411, Did you try to breadboard the output, just to test if another device can read this clock ?

#5 Re: EOS 4 » 6862 D-WAM ASCII Digital I/O » 2018-04-05 20:59:54


Switch from eagle to anything

Usually I export as PDF, not manifacturing in a Fab, with gerber. I stick to small module, and/or stitch in Illustrator.

I don't know the ferrite either and this plus alot of other questions would be solved if we had some photos tongue.

I found many 600ohm @ 100mHz at in SMD (but nothing in through hole)

For the act125 I use an act125

DIP14 74HC125 … 8BBCvLc%3d

I'm really worried about the signals integrity by going through hole and extending all those lines so much. I'm not a pro though, maybe it is possible.… I don't actually care on the dwam

I'd like to use a keyboard, naming is a pain (but I owned samplers where it was worst !).
Which ins/outs interest you the most on this extension ? I think Midi, world clock and Keyboard could work even in a cheap version. Everywhere ACT125 buffer are used, is simple CMOS logic, nothing critical.

ESU/EAB is another story. I don't have any experience in audio-digital signals domain, just in analogue ones.

#7 Re: EOS 4 » 6862 D-WAM ASCII Digital I/O » 2018-04-04 19:17:48


Ok, cool !
I traced the acsii circuit yesterday on eagle, to see what's it looks like on a PCB.

I searched for act125 equivalents in DIP14 format, as i'm not confortable with smd.
I don't know what kind of ferrite use. But sure it can work without, for testing.

Could you confirm if you added the CS8411-CP chip, and if the options are enabled on EOS.
Second, have you checked if your keyboard outputs something (on pin 2 & 3, on the din socket)
Last what buffers IC (act125) did you use ?

I can help for PCB, but with eagle free version limitations ( double side 8x10cm max board size)

#8 Re: EOS 4 » 6862 D-WAM ASCII Digital I/O » 2018-04-02 07:38:18


For Ultra samplers, the 6862 board contains only one chip (CS8411-CP) to put on the motherboard. … 0.php.html

For non ultra samplers, the 6815 board contains two chips.
CS8411-CP and CS8402A-CP … SwTiRZgE9S

If you try to clone 6862, your sampler is a Ultra one, right ?
The ebay seller in the link above specify that 6815 is not compatible with ultra line.

Looking at the schematics, … uments.pdf
page 272 "SCHEMATIC MAIN E4 ULTRA RACK V2 sheet 9"

I don't see a second chip ( like CS8402A-CP) on the board.
Only 6 connections from ascii circuit to the connector CN502

the CN502 have to be wired with a lot a pins to ground (all odd pins)
18, 20, 22 pins to VCC.

Did you tried that ?

#9 Re: EOS 4 » 6862 D-WAM ASCII Digital I/O » 2018-04-01 10:55:33


hey lame_turtle,
Did you tried with a CS8411-CP chip installed ?
May be this chip is needed for EOS to see the extension, bringing a pin high.

#10 Re: EOS 4 » 6862 D-WAM ASCII Digital I/O » 2018-03-11 11:56:40


Does anyone finally attempted a DIY approach yet ?
I read in several places there's a thread on a facebook group.
Did you know if it worked ? (Can't check myself, as I don't own a facebook account)

#11 Re: EOS 4 » E4K - sample transfer » 2018-02-10 09:27:46


Hey dmtsymphony, SCSI2SD + Chicken Sys translator is pricey, but a very good combo for bulk transfert

#12 Re: EOS 4 » Please Help!!! 6400ultra upgrade 4.70 » 2018-01-19 21:57:49


Ouch, sorry for your SSD.
Can't help you too much about IDE, as I choose the scsi2sd way.

About the workflow, it depends what you want to do with 4.7
First file and folder naming convention as describe in 4.7 manual is not so easy as a simple drag n drop. Each folder/bank have to be named prefixed by a number and a letter.

If your goal is to feed your drive with wav files, the sad thing is 4.7 only let you load wav files one by one. A pain if you planned to do a layered drumkit.
E4Btool is a free application (win/mac) to write a basic bank file with multiple wav, but without mapping. 
I don't know if E4B files works prior 4.7.

ChickenSys translator is very usefull and worth the money, if you want to translate programs from other hardware/software sampler.
It can also read EMU EOS formatted drives. So you can fill your sampler with samples, but without 4.7.

#13 Re: EOS 4 » Please Help!!! 6400ultra upgrade 4.70 » 2018-01-18 20:22:55


Hey, do you still have the floppy drive or did you replace it by Icy Box ?
I may have read somewhere a jumper is need when floppy drive is disconnected : it could hang the sampler

I experience also drive troubles, on an e5000/4.7 with FAT scsi2sd v6.
Not the same as yours : editing samples, the sampler hang while saving the UNDO/REDO file, and displays "Scanning FAT" for about 1 minute per FAT volume.

I noticed EMU eos format was simpler to manage than FAT, but more space limited.

2 - I think the IDE connector on E-Mu are double pin rows.
Usual Ide cable have a blocked hole in the middle, to prevent backward plugin.
You have to drill this hole, or the cable can't be plugged.

Look at this picture, on the blue side : … B0000511TN

#15 Re: EOS 4 » Getting 2MB Flash (CPU?) memory these days » 2017-11-01 19:12:23


Hello James,
The URL website is
It seems to be under construction but the author left this message

Don't panic, ME-1 and EMU SIMM replica still in service.

Using WayBackMachine at, you can still find his contact. You should try to mail him directly

Bernward Mock
info [/a~t/] marjorie [/d~o-t/] de

#16 Re: EOS 4 » Is it possible to do wavetable morphing on Emu Ultra ? » 2017-07-31 21:23:50

e64_eli wrote:

Poorman's EOS Wavetable sequencing

Assign as many samples as you wish to a group and then assign each one its own little section of the realtime cf and then set the fades so that each concurrent layer smoothly fades into the next.

Then edit the *group* cords with Modwheel - Ampxfd +/- 100% and then a LFO also to Ampxfd with a mod depth to suit your needs and then set the LFO speed to whatever.

Now this ones important, in the tuning section, voice setup set the assign group to one of the poly2 configurations because say you`ve got 64 sounds assigned to the group thats normally all of your poly gone when only 2 can be heard at any given time so the poly2 setting simply only allows for 2 notes of polyphony to be used on that group.

Then edit each *voice* set of cords (keeping well away from the group assignments, of course) to however you bloody well want - a different filter on each is good, another LFO to cutoff is good too, basically whatever you please.

When you play a note, you should now hear the LFO sweeping the wavetable. Now tweek the modwheel and you can determine what section of the wavetable you want the LFO to sweep.

I did it on 16 voices, with 16 samples of 2048 sample duration.
Longer to set up rather than offsetting start position on a single wave
Full thread here

#18 EOS 4 » Is it possible to do wavetable morphing on Emu Ultra ? » 2017-07-23 18:00:24

Replies: 3


I'm trying to do on an E5000 (v4.7) basically what Xfer Serum do : wavetable morphing with a cord, using Sloop

Same technique as explain here :

• I dumped a wave file via midi with a constant pitch note.
• I loop a cycle (100 samples for A441hz sampled @ 44100hz)
• frequency modulation is present in this sample, its total length is (for example) 1000 samples = 10 cycles.
• I make a preset for this sound, and a cord, linking ModWheel or a very slow LFO to Sloop.

I seems to works, as I can hear something like PWM.
But the cycle is to short. I'd like to obtain a bigger range, and offset the starting point to 200, 300, 400.. to 900

I don't really understand how Sloop and Sstart works, and what exact value is sent from ModWheel or the LFO.
I assume it offset the start/loop value of about 128 samples. (adding the modWheel value 0 to 127, to Start/Sloop)
I tried to add a X4gain to extend ModWheel to 512, but I'm not really sure it really works.


Serum use 2048 samples wavetable, which let use more detailed waveform.
I read some threads about this subject on EMUs, but nothing saying it could be done as in serum.
The Eos documentation about Sstart and Sloop is really light, and don't really explain how it works.

I'd like to know if a coord could launch a sample at a percentage of its total length ?
Is it possible to stack many 4xGain modules to send highest offset value ?

Or any information about loop points playing is welcome,
Thanks !

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