Twisted Electrons MEGAfm

Any music gear discussions that don't fit into one of the other forums.

Moderators: Kent, luketeaford, Joe.

Post Reply
lkvsp
Learning to Wiggle
Posts: 2
Joined: Thu Oct 14, 2021 4:46 am

Re: Twisted Electrons MEGAfm

Post by lkvsp » Thu Oct 14, 2021 4:55 am

Hello folks!

I'm in love with this synth but I'm not able to update/degrade the firmware what's driving me crazy.
Firmware send process looks proper, LEDs on and blinking, synth is getting messages but after the process it always remains 1.9
Uploading/downloading presets by sysex works well.
I've tried older and newer versions of firmware, different cables and sysex programs with various transfer speed.

I use MacOS, SysexLibrarian, Motu Ultralite MK3.
Sending sysex to other gear without problems.

Anyone had similar problem?

chaosium
Wiggling with Experience
Posts: 298
Joined: Fri Dec 28, 2012 1:48 pm
Location: Seattle

Re: Twisted Electrons MEGAfm

Post by chaosium » Thu Oct 14, 2021 1:28 pm

lkvsp wrote:
Thu Oct 14, 2021 4:55 am
Hello folks!

I'm in love with this synth but I'm not able to update/degrade the firmware what's driving me crazy.
Firmware send process looks proper, LEDs on and blinking, synth is getting messages but after the process it always remains 1.9
Uploading/downloading presets by sysex works well.
I've tried older and newer versions of firmware, different cables and sysex programs with various transfer speed.

I use MacOS, SysexLibrarian, Motu Ultralite MK3.
Sending sysex to other gear without problems.

Anyone had similar problem?
Just spotted your post on the 'nauts, does it restart itself after completion?

lkvsp
Learning to Wiggle
Posts: 2
Joined: Thu Oct 14, 2021 4:46 am

Re: Twisted Electrons MEGAfm

Post by lkvsp » Thu Oct 14, 2021 1:47 pm

After last LED blink screen shows 1.9 (all LEDS off) for a sec and then comes back to the active preset number.

quadrupole
Common Wiggler
Posts: 250
Joined: Sat Sep 20, 2014 7:58 pm
Location: Berkeley, CA

Re: Twisted Electrons MEGAfm

Post by quadrupole » Fri Oct 15, 2021 10:27 pm

Just pulled the trigger one of these after fiending over it for several months. Shipped one day after purchase:) Quick question: is the power supply included? Nothing mentioned definitively on the site.

User avatar
sssaaammm
Learning to Wiggle
Posts: 14
Joined: Wed Feb 26, 2020 9:15 am
Location: California

Re: Twisted Electrons MEGAfm

Post by sssaaammm » Sat Oct 16, 2021 12:39 am

quadrupole wrote:
Fri Oct 15, 2021 10:27 pm
Just pulled the trigger one of these after fiending over it for several months. Shipped one day after purchase:) Quick question: is the power supply included? Nothing mentioned definitively on the site.
Yeah, it should come with one.
///

quadrupole
Common Wiggler
Posts: 250
Joined: Sat Sep 20, 2014 7:58 pm
Location: Berkeley, CA

Re: Twisted Electrons MEGAfm

Post by quadrupole » Mon Oct 18, 2021 11:26 am

Great, thanks for confirming. Looking forward to getting my hands on this little synth. Also got a set of cheap noise gates to tame the hiss:)

User avatar
Yes Powder
Powder that makes you say "Yes"
Posts: 2115
Joined: Thu Sep 03, 2015 2:23 am
Location: Albany, New York
Contact:

Re: Twisted Electrons MEGAfm

Post by Yes Powder » Mon Oct 18, 2021 12:33 pm

quadrupole wrote:
Mon Oct 18, 2021 11:26 am
Also got a set of cheap noise gates to tame the hiss
There's really not that much. I imagine anyone who finds it enough to be bothersome would find the "ladder effect" inherent with this chip to be far more offensive.

User avatar
zollenz
Learning to Wiggle
Posts: 21
Joined: Thu Nov 05, 2020 11:28 am
Location: Copenhagen
Contact:

Re: Twisted Electrons MEGAfm

Post by zollenz » Mon Oct 18, 2021 1:29 pm

Yes Powder wrote:
Mon Oct 18, 2021 12:33 pm
quadrupole wrote:
Mon Oct 18, 2021 11:26 am
Also got a set of cheap noise gates to tame the hiss
There's really not that much.
Agree. I never felt the need to put a noise gate on the MegaFM.

I've also got the TE TherapSID mk2 (loaded with two 6581s) and that sits permanently behind a dual noise gate to handle the frrrrbzzt when idling.

Ishkash
Common Wiggler
Posts: 99
Joined: Fri Jan 08, 2021 5:39 pm
Location: California, South

Re: Twisted Electrons MEGAfm

Post by Ishkash » Mon Oct 18, 2021 11:11 pm

edit: oops
"It’s much easier to be done than to be satisfied." ~ Bruce Swedien

abluesky
Learning to Wiggle
Posts: 24
Joined: Tue Nov 14, 2017 11:11 am

Re: Twisted Electrons MEGAfm

Post by abluesky » Tue Oct 19, 2021 6:02 pm

Yes Powder wrote:
Mon Oct 18, 2021 12:33 pm
quadrupole wrote:
Mon Oct 18, 2021 11:26 am
Also got a set of cheap noise gates to tame the hiss
There's really not that much. I imagine anyone who finds it enough to be bothersome would find the "ladder effect" inherent with this chip to be far more offensive.
What’s the ladder effect?

User avatar
endmusik
The Wretch
Posts: 152
Joined: Sun Mar 11, 2007 9:29 pm
Location: NJ
Contact:

Re: Twisted Electrons MEGAfm

Post by endmusik » Wed Oct 20, 2021 9:30 am

I just received mine yesterday, and it inexplicably is not responding to Midi - right out of the box it worked and I was able to spend time checking it out, but when I power cycled it the midi ceased working. Several different tries led to me getting some success but not consistently, and I have not been able to get Sysex to transfer to update from 1.9 to 2.2.

I have emails out to Thomann and to TE but this seems like manufacturing more than anything else. Anyone else have issues with the midi ports being unreliable?

User avatar
Yes Powder
Powder that makes you say "Yes"
Posts: 2115
Joined: Thu Sep 03, 2015 2:23 am
Location: Albany, New York
Contact:

Re: Twisted Electrons MEGAfm

Post by Yes Powder » Wed Oct 20, 2021 11:02 am

abluesky wrote:
Tue Oct 19, 2021 6:02 pm
What’s the ladder effect?
It's a term coined to describe the distortion artifact inherent in the chip's primitive DAC, whose least significant bit is perhaps not insignifcant enough, resulting in an asymmetric squaring of the output near the zero-crossing of the output wave. It becomes most apparent on waves with little to no modulation as their amplitude decays to zero. This results in a sort of zippering effect as the amplitude simultaneously decays and squares up, to the point where the end of the decay sounds like a quick, quiet zippering as the pulsewidth narrows and suddenly cuts out entirely

It's generally considered to be part of the chip's charm among enthusiasts, but it'll probably irk people expecting a more traditional FM sound.

Post Reply

Return to “General Gear”