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 Synth1 by Ichiro Toda is a Virtual Instrument Audio Plugin for Windows and Mac OS X. It functions as a VST Plugin and an Audio Units Plugin.
Product Synth1
Developer Ichiro Toda
Price (MSRP) Free
Type / Tags
Plug-in, App & Soundware Format(s)
Operating System Availability
Download Released
 1.13beta3  Downloads Released
 1.13beta7  Downloads Released
Miscellaneous Information
Copy ProtectionNone

Synth1 is a software synthesizer. Functionally it is modelled on the Clavia Nord Lead 2 Red Synth.


  • 2 Oscillators, FM modulation, ring modulation, sync, modulation envelope.
  • 4 types of filters, distortion.
  • 2 LFOs (synchronized with host).
  • Arpeggiator (synchronized with host).
  • Tempo delay (synchronized with host), stereo chorus/flanger.
  • Legato mode, portamento.
  • 16 notes polyphony.
  • 128 presets.
  • Thoroughly optimized for light CPU load using SSE instructions, etc.
  • Automation.
Discussion: Active


29 August 2012 at 6:06pmrifftrax

briandc... using a VST fail *facepalm*

29 August 2012 at 7:07pmchk071

Mhh... so a 5/10 rating, because your Linux software isn't capable of running VST's correctly? Just saying, because on any Windows host i tried Synth1 in, the arp, delay and polyphony work correctly... there's also no need to improve the synth, but the software you tried it in.

22 January 2013 at 7:03pmdragonslayor

Linux runs on UNIX, windows does not.


19 May 2013 at 6:29pmas.erwin

What does that even mean? Unix is an operating system, Linux is a kernal that drive other operating systems... the statement makes no sense. Might as well claim that Windows runs on Mac.

29 August 2012 at 10:10pmgLOW-x

May be you'd better stop now using this configuration.Because you obviously don't know how to use VSTs on Linux.A lot of users reported Synth1 working perfectly with Wine or Vestige.

You'd better stick with Windows or Mac OS X...or learn HOW to use VSTs on Linux.

But if you post bad reviews every time a VST don't work right on Linux, you are going to use your fingers soon.

Reviews are not for troubleshooting things like "this VST don't work on my Linux with a beta wrapper" if you know what i mean ;)

ppl will be hard (like me) but you really searched it by playing the 'i'm smart because i use Linux to run VSTs" whereas you can't even use the simplest and most stable simple freeware synth

31 August 2012 at 4:02pmbriandc

If you can link me to others who run it in Vestige without problems I'd be very grateful. :)

30 September 2013 at 9:35amgodly

Hey guys, I'm intrested in synth1 on linux also, I think briandc is onto something, can you help us out?


31 August 2012 at 7:07ambriandc

Maybe it would be better to deal with the message, rather than just shooting the messenger??

I've tried about 200 different free VSTs in VeSTige. Many of them have nice working interfaces, good arpeggiators, mono/poly functions that work just fine.

It's not my fault that Synth1 doesn't perform as well. (I even re-installed it, thinking the md5sum was bad. No difference.)

Oh, one more thing: some of the patches actually make Synth1 crash. (Something that no other VST instrument I've tested does.


Why should I lie?



1 September 2012 at 9:09pmwikter

I think that all the reviews should respect the fact that testing adapters in beta stage the results depend on the adapter and not the plugin. This review about a linux adapter is out of place...

2 September 2012 at 12:32amglokraw

Festige will do about 50% of vsts in linux, dssi-vst about 20%, while reaper

is about 90%, and you need nvidia graphics, and pci audio, or the numbers go down somewhat,

as the gui are often the failpoint. Synthmaster creations fail the most, some Synthmaker apps have a

few quirks, module dependant, while dongled apps, or those with custom copy protection intertwined with windows code unsupported by wine, always fail. As they should!.

Wine has proven to draw gui better this year than last, as is it's history. New linux users who are musicians, should avoid updating a working daw box to the 'newest' linux, but they fall for it over and over and over.

Musicians with supported hardware, a linux using friend, or the desire to learn the OS beyond audio production, have a bright future, as at least 5 audio production distributions are improving apace.

The 400 meg Studio 1337 (yeah, Steinberg, I said 'meg') is astounding. Pro-Tools needs that much code

just to use a mouse. @ briandc, for best longterm 'luck', become familiar with puppy, rpm and deb based

distributions. The hardware detection and support are different, and nuances of software are different.

A particular failure in one type of distro, is often fine in another.

The crashes based on Synth1 presets are probably based on not using reaper to host your plugins,

or an arcane sublimity in wine math calculations not liking a motherboard chipset.

I experienced some of those, but not in the last three years. A sound designer

I asked looked at the presets, and saw no obvious symptoms.


5 September 2012 at 3:37pmStudioDave

Just a note to say that I've been testing Synth1 with the Festige software on AVLinux 5.0.1. It works nicely here, and I've been testing it with various soundbanks. Great synth, very straightforward design with excellent sound quality.

I won't give it a rating, I agree that it's a bit bogue to evaluate a Windows-based VST while running it on Linux. But as I said, IMO it's a great synth.

8 September 2012 at 12:22amHooj

Been using Synth1 for about 18 months now! I've auditioned just about every (popular) synth on the market (especially the FREE ones). I hate to admit this but Synth1 is even better than a few of the "paid version" synths. If you know synthesis, you can achieve some very nice sounds from this synth.

Don't judge it based on the many presets available. Instead, use them as a "guideline" and create your own according to your needs & style of music.

13 September 2012 at 9:02ambriandc

I am aware that VSTs are made for Windows. FeSTige is made to run these apps in Linux, and many of them work very nicely. (I'm using KXStudio, which is built upon Ubuntu Studio, which is Debian-based.)

So my point is, if other "less popular" VSTs work so well, it's a shame that this synth, which has been highly regarded here at KVR, is not able to work correctly. At least, not on KXStudio. Maybe AVLinux is better, but I don't know, since FeSTige should be the same in either distro.

So there must be something in other VSTs that make it more compatible, that is missing in Synth1.

Again, it's not that I can't get Synth1 to work at all. It works. But the arpeggiator doesn't, and the mono/poly control is a bit confusing, since sometimes it indicates "poly" but I can't get more than one note at a time. Finally, some sounds cause it to crash entirely.

The people at KXStudio are currently working on the issue, so hopefully we'll see things change soon. Especially since I'd really like to be able to use this synth to its fullest. :)


13 September 2012 at 4:15pmjuandaco

Hi briandc. I have Synth1 running perfectly smooth with a configuration similar to yours, but with Reaper and wineasio. I know that Reaper is propietary software, but in not expensive, plus it has really good VSTis support under Linux. I have regular Ubuntu 12.04 with KXStudio repositories. You just need to install "wineasio" (should be installed with KXStudio) and install Reaper. Mine works flawlessly. Hope this helps.

13 September 2012 at 6:28pmjuandaco

Hello again brian. I managed to run Synth1 also with dssi-vst. Just type in a terminal vsthost followed by the path of the dll for Synth1.

14 September 2012 at 8:43ambriandc

Hi juandaco,

thank you for taking the time to help me out. :)

I have tried dssi-vst, but it didn't behave any better than FeSTige (still had no luck with arpeggiators, mono/poly, etc). But I will certainly take a look at Reaper.

I have wineasio installed in my KXStudio installation, and the people behind the project are working on integrating Synth1 into the Carla host. If that succeeds it'll be a great step ahead for the entire community, imo..


15 September 2012 at 4:18pmbriandc

Silly me! I already had a Reaper demo in KXStudio!! (insert facepalm here)

So anyway, a very happy ending. Synth1 is now working just fine, arps, polyphony and all. And no presets cause crashes. ;) Lots of neat effects and things, too.

I don't know if it's my favorite yet, but I certainly give it an 8. The controls are clear and responsive. Very nice! :)


29 October 2012 at 12:40amsteven96663

New to this. My first post. Have to contribute 10 posts before I can rate and review this truly excellent free 10 out of 10 gem. Been loving this one for simply ages. It's the cats pyjamas. Oops, I guess I just reviewed and rated it ;o) Only another 9 posts to go, then I'll give this Synthesiser the proper review I feel it deserves.

19 February 2013 at 6:59amarkmabat

The website in English... yay!

4 June 2013 at 10:49amgodly

Damn, I need it in Dutch! LOL.

3 June 2013 at 12:46pmgodly

I'm having troubles editing the synth knobs from Intone Keys host. Every time I touch a knob, the CPU goes to 50% and the plugin is freezed for a sec. I don't have any probs with other synths...

Could it be because of the 9000+ presets loaded? Removing them didn't make any difference, because the banks associations are still there and loaded in the VST host.

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Average user rating of 8.70 from 30 reviews

Ichiro Toda
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560 people have added Synth1 to 37 My KVR groups 681 times
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