Showing posts sorted by date for query JP. Sort by relevance Show all posts
Showing posts sorted by date for query JP. Sort by relevance Show all posts
Monday, August 17, 2026
10 Amazing Skins for JE-8086 You Need to See
video upload by Autodafe
Kind of interesting to think what the original JP-8080 might have looked like.
"Here are 10 of my favorite skins for JE-8086, the free Roland JP-8000/JP-8080 inspired synth by The Usual Suspects.
🎨 JE-8086 Skin Repository:
/ discord
A quick 90-second showcase of some of the coolest interfaces available for JE-8086 — from classic hardware-inspired looks to completely different designs.
🎵 The background track was made entirely with 4 instances of JE-8086 — no other synths used.
Which skin is your favorite?
#JE8086 #JP8000 #JP8080 #Synthesizer #VST"
See dealers on the right for pricing and availability on gear.
LABELS/MORE: custom, Roland, Soft Synths, The Usual Suspects
LABELS/MORE: custom, Roland, Soft Synths, The Usual Suspects
Thursday, August 13, 2026
Inside Tokyo’s Boutique Music Hardware: Light Reft
video upload by Light Reft [Sasha DZA]
"We run a tiny hardware company in Tokyo and made this short film about why we’re obsessed with noise. We’re thinking about filming a longer documentary about Japan’s small independent instrument makers.
With this video, we want to open a door into the world of Japan’s independent music hardware scene, a world that usually remains outside the attention of a wider audience.
We are Light Reft, a small company founded by a group of enthusiasts in Tokyo. Over the past few years, we have developed and released two instruments of our own - monolit and concrete. You can learn about us on our web-site www.lightreft.jp
But we are far from alone.
In Tokyo and across Japan, there are many small independent companies, workshops, and individual makers creating unusual musical instruments, effects, and electronic devices. Many of them remain virtually unknown outside a small circle of musicians, even though this is where some genuinely interesting things are happening.
This video is only the beginning.
If you would like to see a full-length film about Japan’s independent music hardware scene, meet the people who design and build instruments themselves, visit their workshops, and find out why they do what they do - let us know in the comments.
And please share this video. If we see that people are genuinely interested in this world, we’ll continue and try to show this scene from the inside.
Video & Editing - Evgeny Joy
Sound - Sasha DZA (Light Reft)"
See dealers on the right for pricing and availability on gear.
LABELS/MORE: DIY, Interviews, Lightreft
LABELS/MORE: DIY, Interviews, Lightreft
Thursday, July 23, 2026
cyma forma ALT / Sound Demo by RPM #synthesizer #modularsynth
video upload by 宮地楽器RPM シンセサイザーコーナー (旧Wurly's!)
"cyma forma ALT is an analog synthesizer designed to produce drone sounds, soundscapes, and complex generative melodies. It features a system that allows you to intuitively control a wide range of sound sources—including five oscillators, white noise, and a microphone—using faders, knobs, light sensors, and a matrix of physical pins.
■RPM (Recording Proshop Miyaji )
A Tokyo-based specialty store for hands-on recording equipment
https://rpm.miyaji.co.jp/"
Thursday, July 16, 2026
Roland JP-8000: The Trance Machine
video upload by Alex Ball
"A look at the famous Roland JP-8000 from 1996 along with its prototype.
0:00 Intro
1:17 History
4:18 Demo 1:
5:22 What is the JP-8000?
11:13 Demo 2:
12:22 The Story of the Prototype
15:59 Demo 3:
17:05 The Usual Suspects
18:48 Patron Outro Jam
With thanks to my Patrons, Roland, Andy Boucher, Mark Lawrence, Stéphane Pigeon, The Usual Suspects and other legends who know who they are!"
Tuesday, July 14, 2026
SEQUENTIAL PROPHET 12 ♫ 50+ Custom Sounds ► ULTIMATE SOUNDS
video upload by Synth Cloud
"▬▬▬ Download Link ▬▬▬▬
🚀 ULTIMATE SOUNDS:https://www.synthonia.com/marketplace...
📩 Mail: info@synthonia.com
Ultimate Sounds for Prophet 12 is a premium sound bank featuring 50 professionally programmed sounds for Sequential / Dave Smith Instruments Prophet 12 and Prophet 12 Desktop.
This collection is designed to expand the expressive and hybrid character of the Prophet 12, combining modern digital detail with analog-style warmth, depth and musical response.
Inside the sound bank you will find cinematic pads, evolving atmospheres, digital textures, analog-style leads, deep basses, brass sounds, arpeggiated patches, layered synth colors and ambient soundscapes ready for modern productions, live performances and cinematic compositions.
Using the Prophet 12 architecture, Ultimate Sounds takes advantage of its deep synthesis engine, modulation possibilities, envelopes, LFO movement, delay textures and performance-oriented programming to create a versatile collection of inspiring and playable sounds.
This is not simply a preset collection. It is a focused sound design toolkit for musicians, producers and composers looking for expressive Prophet 12 sounds with a modern hybrid identity.
Sunday, June 28, 2026
Roland JP-8080 Rackmount Virtual Analog Synthesizer
Note: links to listings are affiliate links for which the site may be compensated.
via this listing
Additional Perfect Circuit listings
via this listing
Additional Perfect Circuit listings
See dealers on the right for pricing and availability on gear.
LABELS/MORE: Auctions, Perfect Circuit, Roland
LABELS/MORE: Auctions, Perfect Circuit, Roland
Friday, June 12, 2026
deconstruct MINIMAL [Detroit Techno Style Build-Up Jam]
video upload by SONICWARE
"The deconstruct series has arrived — redefining musical structure.
Limited introductory offer: $299 for the first 1,000 units. https://sonicware.jp/pages/deconstruc...
deconstruct MINIMAL is a groovebox combining a sampler-integrated drum machine and analog-modeling bass synthesizer, built for the hypnotic grooves of minimal techno and minimal house.
● Legendary Groove DNA
● Deep 10-Track Drum Machine
● Sonic Expansion Sampler
● Elastic Bass Synth
● Live-Boosting Effects"
See dealers on the right for pricing and availability on gear.
LABELS/MORE: MATRIXSYNTH Members, SONICWARE
LABELS/MORE: MATRIXSYNTH Members, SONICWARE
Saturday, May 23, 2026
plantssystem to debut “KOSMOS2” at Hamamatsu Micro Maker Faire 2026
video upload by plantssystem
plantssystem will debut the new generative sound engine 'KOSMOS2' at Hamamatsu Micro Maker Faire 2026, exhibited at the ISGK Instruments booth.
KOSMOS2 is a multi‑layer generative audio engine running on the Raspberry Pi Pico2 and powered by the PRA32‑U2/M digital synth engine from ISGK Instruments.
This marks the first public appearance of the KOSMOS2 system.
Designed for smooth, continuously evolving musical structures, KOSMOS2 features:
- 4‑part generative architecture (Melody / Bass / Chord / Sequence)
- PRA32‑U2/M engine providing stable, high‑quality digital synthesis
- Deterministic yet evolving generative behavior
- Real‑time control via external UI and MIDI
- Fully embedded implementation on Pico2 hardware
Hamamatsu — the city of musical instruments — is the perfect place for this debut.
Visitors can experience KOSMOS2 directly at the ISGK Instruments booth."
https://plantssystem.github.io/KOSMOS2-SITE/
https://makezine.jp/event/makerfaire/hamamatsummf2026/
See dealers on the right for pricing and availability on gear.
LABELS/MORE: events, GreyScale, Hamamatsu Micro Maker Faire, News
LABELS/MORE: events, GreyScale, Hamamatsu Micro Maker Faire, News
Tuesday, May 12, 2026
JP-8000 vs Nord Lead A1 vs Access Virus B — Which One Do You ACTUALLY Need?
video upload by Marc Renton
"The elephant in the room: Roland JP-8000, Clavia Nord Lead A1, and Access Virus B: Three legendary hardware synths from the late 90s/2000s that still hold up today. But which one is worth your money in 2026?
In this video, I go hands-on with all three machines from my studio, playing patches, presets, and sounds I programmed myself. No script, no BS — just honest thoughts after owning these synths for up to 21 years.
What you'll learn:
JP-8000: SuperSaw magic, but what are the real limitations of the filter?
Nord Lead A1: Why it's my go-to synth — and why the Moog filter is a game changer
Access Virus B: The all-in-one machine with 24-voice polyphony... and where it hits a wall
Should you buy hardware or use emulations? (honest take)
These are timeless machines. This knowledge will be valid in 10 or 20 years. Maybe some plugins won't exist by then — but these synths will.
Monday, May 11, 2026
History of the Roland JP8000/JP8080 & Classic Trance Sound Design! (The original JE-8086)
video upload by AtomicA Sounds
"Synthesizer Presets & Coaching Services:- https://AtomicASounds.com
0:00 Intro
0:22 Roland JP-8080
0:27 Demo Track 1 - Clear Blue Water
1:49 My Own JP-8080
2:24 History Beginning
2:47 JP-8080 vs JP8000
3:32 Supersaw
3:49 History Lesson Continues
4:29 Darude Sandstorm
4:39 Dreams
4:55 Demo Track 2 - Superstring
6:39 Coaching & Sound Design
7:00 Sound Design Tutorial - Superstring
9:20 Ableton Processing
11:56 Outro"
Sunday, May 10, 2026
Roland Boutique JP-08 Virtual Analog Synthesizer Module
Note: links to listings are affiliate links for which the site may be compensated.
via this listing
Additional Perfect Circuit listings
via this listing
Additional Perfect Circuit listings
See dealers on the right for pricing and availability on gear.
LABELS/MORE: Auctions, Perfect Circuit, Roland
LABELS/MORE: Auctions, Perfect Circuit, Roland
Saturday, May 09, 2026
deconstruct MINIMAL | Hypnotic Groove Machine [Chris Lody’s Hypnotic Improvised Jam @ Superbooth]
video upload by SONICWARE
"@ChrisLodyMusic Hypnotic Improvised Jam @ Superbooth 26
Limited introductory offer: $299 for the first 1,000 units. https://sonicware.jp/pages/deconstruct-minimal
deconstruct MINIMAL is a groovebox combining a sampler-integrated drum machine and analog-modeling bass synthesizer, built for the hypnotic grooves of minimal techno and minimal house."
See the announcement post here.
See dealers on the right for pricing and availability on gear.
LABELS/MORE: MATRIXSYNTH Members, SONICWARE, Superbooth
LABELS/MORE: MATRIXSYNTH Members, SONICWARE, Superbooth
Thursday, April 30, 2026
Roland JP-8080 Rackmount Virtual Analog Synthesizer
Note: links to listings are affiliate links for which the site may be compensated.
via this listing
Additional Perfect Circuit listings
via this listing
Additional Perfect Circuit listings
See dealers on the right for pricing and availability on gear.
LABELS/MORE: Auctions, Perfect Circuit, Roland
LABELS/MORE: Auctions, Perfect Circuit, Roland
Monday, April 27, 2026
SWAYED - "Ambient Analog Fm Patches" 64 Presets
video upload by LFOstore
"FM Synthesis is Back!
BUY: https://lfo.sellfy.store/p/swayed-amb...
The SY series synths are very complex and organic sounding.
And now we are having virtual emulator of this wonderful SY77 machine -SWAYED https://strydeaudio.com/swayed as a plugin for PC&MAC.
Introducing unique 64 patches for older brothers for SWAYED
Made by Nick Klimenko, author of WS Universe pack for Korg Wavestation & Organica pack for Waldorf Blofeld in collaboration with Loki (Ivan Vasiliev)
Here you will find:
Lush & complex ambient pads, swells, drones, textures.
Great strings from JP, JX, Juno series (emulations)
Very organic solo leads with dedicated expressively
Beautiful FM bells, plucks, complex structures
Powerful FM basses combined with advanced AWM osc's
Our great "Alive" patch created specially for this series
All patches working with MW + Aftertouch.
Also working with TG77 & SY77."
See dealers on the right for pricing and availability on gear.
LABELS/MORE: MATRIXSYNTH Members, Soft Synths, Yamaha
LABELS/MORE: MATRIXSYNTH Members, Soft Synths, Yamaha
Sunday, April 12, 2026
Roland Boutique JP-08 Virtual Analog Synthesizer Module
Note: links to listings are affiliate links for which the site may be compensated.
via this listing
Additional Perfect Circuit listings
via this listing
Additional Perfect Circuit listings
See dealers on the right for pricing and availability on gear.
LABELS/MORE: Auctions, Perfect Circuit, Roland
LABELS/MORE: Auctions, Perfect Circuit, Roland
Friday, April 10, 2026
New Kodamo Mask1EX MK2 Bitmask Synthesizer ~ Jade Vine Limited Edition
video upload by Kodamo
"The Mask1EX desktop synthesizer is back, with new looks and new features! Mask1EX MK2 offers 14-voice polyphony with two Bitmask oscillators for each voice - Bitmask Synthesis is exclusive to all Kodamo's Mask synthesizers, it produces a wide range of unique tones by using a single number as parameter. Mask1EX MK2 also has built-in effects, a looper, an arpeggiator and much more."



"It is back, with a totally new design, more powerful than ever! The Mask1EX is a desktop synthesizer that you can use with your keyboard, DAW, sequencer or any other gear with MIDI. Like other Mask synths, it is based on our exclusive Bitmask synthesis technology which generates up to 512 different waveforms for oscillators. It offers 14-voice polyphony with two Bitmask oscillators per voice and 2x2 parts of multi-timbrality (two parts of single or dual layered voices). Each part comes with stereo effects to make the sound warm and rich, plus a master effect with delays and reverbs. Like the Mask1 keyboard, the Mask1EX MK2 offers an incredible playing experience with its dynamic articulation system. Try the slurred, poly-mono and hybrid modes, they add a new dimension to keyboard playing, changing how the sound behaves as you play legato, staccato, neighbor notes or wider intervals.
Mask1EX MK2 is powered by USB-C and is extremely efficient with 1.5W of power consumption, which makes it easy to power by a battery, laptop or smartphone. USB supports class-compliant Audio and MIDI. We also included good old DIN MIDI ports for compatibility.
Mask1EX MK2 offers high-end features at a fair price, with balanced stereo outputs, 200 memory slots for your own sounds, 377 factory presets, full CC mapping of all synthesis parameters, customizable velocity and aftertouch curves, and a lot more.
Inspiration does not wait, so we optimized the Mask1EX MK2 to be extremely quick at startup, it starts in 0.5 seconds. Press ON and play! And it remembers the last sounds you used.
This Jade Vine limited edition gets you a stylish turquoise steel enclosure and a colorful front panel.
Your unit is fully assembled by hand in France, except for surface-mount electronics.
What's in the Box:
Mask1EX MK2 synthesizer
Printed quick start guide (refer to MASK1's user manual for detailed operation)
USB Power supply with EU, UK, US/CA/JP and AU/NZ plugs. If you have no matching plug for your country, you have to use your own power source. Any phone charger or device with USB port will work.
USB-A to USB-C cable"
See dealers on the right for pricing and availability on gear.
LABELS/MORE: KODAMO, New Synths, News
LABELS/MORE: KODAMO, New Synths, News
Monday, April 06, 2026
Huge classic synth collection
Note: links to listings are affiliate links for which the site may be compensated.
via this Vemia listing
Click the auction link on top when you get there for additional listings.


"This collection of vintage synthesizers has grown with me for years. Most all of these instruments have been used on many projects, including VeggieTales, a variety of remixes, and many PlayStation video games and marketing and promotional discs. Most recently they were used on the Mass Effect Andromeda video games soundtrack. They have also been sampled and are part of the SoundVault Collection and the Kurzweil Analog Collection for the K2000 series samplers.
VEMIA note: to forestall many inquiries, The seller’s idea is that he wants to sell it as a whole. That may or may not work out in this auction. If it doesn’t, obviously he’ll be free to do whatever he wants after the auction finishes.
It all works. Everything has been kept in a clean, smoke-free, climate-controlled studio. I have always fixed things myself, so everything is operational and sounding great. I have repair notes on the synths that received attention, though most of them have worked great over the years, without much need for repairs. There are also several MIDI to CV converters so they can all be controlled by computer, plus cables if desired. And a few have cases and manuals.
ARP 2600 with lid but no keyboard. Pictured with broken slider and missing caps, but I believe I have them. ARP Odyssey (White) ARP Odyssey (Black & Gold) ARP Odyssey (Black & Orange) ARP Avatar (Original with pickup) (No original knobs, but early rubber caps if you want) ARP Avatar (CMS modded with patchpoints, filter, and envelope) (No original knobs, but early rubber caps if you want)
Chroma Polaris
Crumar DS-2
EDP Wasp
Electro Harmonix Super Space Drum Electro Harmonix DRM 32 Digital Rhythm Matrix
EML 101
Mini Korg 700S Korg Mono/Poly Korg MS-20 (Original Korg Filter) Korg SQ-10 Sequencer Korg Poly-Six Korg Trident
Moog Liberation with rack power, cable, and case Moog MiniMoog Moog MemoryMoog Plus with MIDI and case Moog MicroMoog Moog MultiMoog Moog Opus 3 Moog Prodigy Moog Sonic Six (The case is poor, but the synth panel looks great) Moog Taurus with case
Oberheim Matrix-6r Oberheim OB-1 Oberheim OB-8 with Page 2 and MIDI Oberheim OB-SX (This one is probably in the worst physical condition of them all) Oberheim Xpander
Rheem Kee Bass
Roland CSQ-600 Digital CV/Gate Sequencer Roland JP-8080 Roland Jupiter-4 Roland Jupiter-6 with Europa and original box Roland Jupiter-8 with Encore MIDI Roland JX-8P Roland MKS-7 Roland MKS-30 with PG-200 Roland MKS-50 with PG-300 Roland MKS-70 with PG-800 Roland MKS-80 with MPG-80 Roland MSQ-100 sequencer in box Roland SH-1 Roland SH-2 with case Roland System-100 Model 101, 102, & 104 Roland System-100m D Block Roland System-100m Phaser and Sequencer Block Roland System-100m 104 Polyphonic Keyboard Roland TB-303 with Sequentix MIDI and Filter CV
SCI Max SCI Pro-One SCI-Prophet-5 SCI Prophet-600 with GliGli
Star Instruments Synare 3 Star Instruments Synare 4 Star Instruments Synare Sequencer
Yamaha CS-30 Yamaha SK-20
Encore Expressionist MIDI to CV/Gate Kenton Pro4 CV/Gate and DCB and Wasp JL Cooper MIDI IO 8 ch MIDI to CV/Gate
Standtastic wall-mount arms plus cables if you want them."
via this Vemia listing
Click the auction link on top when you get there for additional listings.


"This collection of vintage synthesizers has grown with me for years. Most all of these instruments have been used on many projects, including VeggieTales, a variety of remixes, and many PlayStation video games and marketing and promotional discs. Most recently they were used on the Mass Effect Andromeda video games soundtrack. They have also been sampled and are part of the SoundVault Collection and the Kurzweil Analog Collection for the K2000 series samplers.VEMIA note: to forestall many inquiries, The seller’s idea is that he wants to sell it as a whole. That may or may not work out in this auction. If it doesn’t, obviously he’ll be free to do whatever he wants after the auction finishes.
It all works. Everything has been kept in a clean, smoke-free, climate-controlled studio. I have always fixed things myself, so everything is operational and sounding great. I have repair notes on the synths that received attention, though most of them have worked great over the years, without much need for repairs. There are also several MIDI to CV converters so they can all be controlled by computer, plus cables if desired. And a few have cases and manuals.
ARP 2600 with lid but no keyboard. Pictured with broken slider and missing caps, but I believe I have them. ARP Odyssey (White) ARP Odyssey (Black & Gold) ARP Odyssey (Black & Orange) ARP Avatar (Original with pickup) (No original knobs, but early rubber caps if you want) ARP Avatar (CMS modded with patchpoints, filter, and envelope) (No original knobs, but early rubber caps if you want)
Chroma Polaris
Crumar DS-2
EDP Wasp
Electro Harmonix Super Space Drum Electro Harmonix DRM 32 Digital Rhythm Matrix
EML 101
Mini Korg 700S Korg Mono/Poly Korg MS-20 (Original Korg Filter) Korg SQ-10 Sequencer Korg Poly-Six Korg Trident
Moog Liberation with rack power, cable, and case Moog MiniMoog Moog MemoryMoog Plus with MIDI and case Moog MicroMoog Moog MultiMoog Moog Opus 3 Moog Prodigy Moog Sonic Six (The case is poor, but the synth panel looks great) Moog Taurus with case
Oberheim Matrix-6r Oberheim OB-1 Oberheim OB-8 with Page 2 and MIDI Oberheim OB-SX (This one is probably in the worst physical condition of them all) Oberheim Xpander
Rheem Kee Bass
Roland CSQ-600 Digital CV/Gate Sequencer Roland JP-8080 Roland Jupiter-4 Roland Jupiter-6 with Europa and original box Roland Jupiter-8 with Encore MIDI Roland JX-8P Roland MKS-7 Roland MKS-30 with PG-200 Roland MKS-50 with PG-300 Roland MKS-70 with PG-800 Roland MKS-80 with MPG-80 Roland MSQ-100 sequencer in box Roland SH-1 Roland SH-2 with case Roland System-100 Model 101, 102, & 104 Roland System-100m D Block Roland System-100m Phaser and Sequencer Block Roland System-100m 104 Polyphonic Keyboard Roland TB-303 with Sequentix MIDI and Filter CV
SCI Max SCI Pro-One SCI-Prophet-5 SCI Prophet-600 with GliGli
Star Instruments Synare 3 Star Instruments Synare 4 Star Instruments Synare Sequencer
Yamaha CS-30 Yamaha SK-20
Encore Expressionist MIDI to CV/Gate Kenton Pro4 CV/Gate and DCB and Wasp JL Cooper MIDI IO 8 ch MIDI to CV/Gate
Standtastic wall-mount arms plus cables if you want them."
Tuesday, March 17, 2026
4 Synth Patches Every Electronic Music Producer Should Know using the Roland JP-8080
video upload by Knob Twirler
"Here are 4 synth patches every electronic music producer should know.
#1 Analog Bass
#2 Super Saw Lead
#3 Ambient Pad
#4 Acid Bass"
Friday, March 13, 2026
JMT SYNTH / SRV-1b
video upload by beatsville store
https://beatsville.jp

A desktop spring reverb unit featuring a built-in miniature spring.
You can use its high-quality, authentic spring to achieve a beautiful, classic reverb—or you can dive headfirst into the lush, vibrant resonance of a wildly oscillating spring, letting yourself drift and drown in its saturated wetness. It gets absolutely drenched.
And while nobody explicitly told you to shake it, smack it around, or slam it against the table... well, naturally, you’re going to do it. After all, there’s a real spring inside that actually shakes! It’s the thrill of the authentic.
Mix the clean-boosted signal (GAIN) with the spring-reverb-processed signal (REVERB), then adjust the overall output volume using the LEVEL control.
When the switch is in the down position, the signal bypasses the effect, passing directly from IN to OUT. The LED illuminates when the effect is active.
*Powered by a DC 9V power adapter (center-negative / Tip = -); sold separately.
See dealers on the right for pricing and availability on gear.
LABELS/MORE: JMT, New Sound Machines, New Synth Effects, News
LABELS/MORE: JMT, New Sound Machines, New Synth Effects, News
A "JP-8000" in your DAW for FREE
video upload by mylarmelodies
"Meet the DSP6300 crew and 'JE-8086', part their amazing ongoing project to make the firmware in 90's virtual analogue synths run in a modern DAW as a VST plugin. FOR FREE. 🔗 https://dsp56300.wordpress.com/ 👉 / mylarmelodies 🙌 MORE LINKS BELOW
Thanks to those who sent me the lecture - it's really interesting if you'd like to understand how this was achieved!
MORE INFO
▶︎ DSP56300 Site (the plugin is called "JE-8086"): https://dsp56300.wordpress.com/
▶︎ Roland's Official JP-8000 Firmware is here: https://www.roland.com/global/support..
. ▶︎ Lecture video by the creators on how it was done: • 39C3 - From Silicon to Darude Sand-storm: ... [video below]
▶︎ The DSP56300 donation link from the app: https://paypal.me/dsp56300
▶︎ More talks from them: https://media.ccc.de/search?p=giulioz
CHAPTERS:
00:00 This sounds familiar.
00:42 The sound, the feat
02:07 How it was done
03:41 Legal implications of ROMs
04:27 A quick fiddle
06:49 How to install & support it
39C3 - From Silicon to Darude Sand-storm: breaking famous synthesizer DSPs
video upload by media.ccc.de
"https://media.ccc.de/v/39c3-from-sili...
Have you ever wondered how the chips and algorithms that made all those electronic music hits work? Us too!
At The Usual Suspects we create open source emulations of famous music hardware, synthesizers and effect units. After releasing some emulations of devices around the Motorola 563xx DSP chip, we made further steps into reverse engineering custom silicon chips to achieve what no one has done before: a real low-level emulation of the JP-8000. This famous synthesizer featured a special "SuperSaw" oscillator algorithm, which defined an entire generation of electronic and trance music. The main obstacle was emulating the 4 custom DSP chips the device used, which ran software written with a completely undocumented instruction set. In this talk I will go through the story of how we overcame that obstacle, using a mixture of automated silicon reverse engineering, probing the chip with an Arduino, statistical analysis of the opcodes and fuzzing. Finally, I will talk about how we made the emulator run in real-time using JIT, and what we found by looking at the SuperSaw code.
This talk is a sequel to my last year's talk Proprietary silicon ICs and dubious marketing claims? Let's fight those with a microscope!", where I showed how I reverse engineered a pretty old device (1986) by looking at microscope silicon pics alone, with manual tracing and some custom tools. Back then I claimed that taking a look at a more modern device would be way more challenging, due to the increased complexity.
This time, in fact, I've reverse engineered a much modern chip: the custom Roland/Toshiba TC170C140 ESP chip (1995). Completing this task required a different approach, as doing it manually would have required too much time. We used a guided automated approach that combines clever microscopy with computer vision to automatically classify standard cells in the chip, saving us most of the manual work.
The biggest win though came from directly probing the chip: by exploiting test routines and sending random data to the chip we figured out how the internal registers worked, slowly giving us insights about the encoding of the chip ISA. By combining those two approaches we managed to create a bit-accurate emulator, that also is able to run in real-time using JIT.
In this talk I want to cover the following topics:
What I learned since my previous talk by looking at more complicated chips
Towards automating the silicon reverse engineering process
How to find and exploit test modes to understand how stuff works
How we tricked the chips into spilling its own secrets
How the ESP chip works, compared to existing DSP chips
How the SuperSaw oscillator turned out to work
giulioz
https://events.ccc.de/congress/2025/h..."
See dealers on the right for pricing and availability on gear.
LABELS/MORE: DSP56300, Roland, Soft Synths
LABELS/MORE: DSP56300, Roland, Soft Synths
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MATRIXSYNTH - EVERYTHING SYNTH
© Matrixsynth - All posts are presented here for informative, historical and educative purposes as applicable within fair use.
MATRIXSYNTH is supported by affiliate links that use cookies to track clickthroughs and sales. See the privacy policy for details.
MATRIXSYNTH - EVERYTHING SYNTH
































