The Chinese DSP reverb module used in the 山景(mountain view) DSP FX Pitch Shifter & Reverb can be changed in terms of effect types and parameters.
Using the APCWrokbench software, the effects can be changed in real time.
The changed effects and parameters can be saved in the module.
2024-11-23 16:50:39 +0000 UTC View Post
Recently, a modular synth event was held in Beijing.
I was thrilled to hear that a Chinese DIYer showcased the Raspberry Pi Pico VCO that I had created at the event.
It seems that there’s a ...
2024-11-13 15:09:33 +0000 UTC View Posthttps://note.com/solder_state/n/na0ae5754fa9c
Python program for wavetable generation used with $9 Arduino Unison VCO.
Enter a value and run it to see a graph of the wavetable.
When the graph is closed, a wavetable is generated in text format in the same...
2024-10-25 07:18:32 +0000 UTC View Post
I attended a live coding performance held in Hamamatsu City, where YAMAHA's headquarters are located.
https://kamoeartcenter.org/events/20240901-loopian/
The artist "Masahiko Hasebe" is a Yamaha engineer and has recently been active as a maker as well.
He also sells DIY electronic instruments individually and frequently exhibits them at Maker Faires.
Vactrols (analog photocouplers) are becoming increasingly difficult to produce due to the harmful chemicals used in their manufacturing, making them limited and expensive components. However, vactrols produced in China are available globally through platforms like AliExpress at a low cost of around $1 per piece.
I measured the decay characteristics of three types of vactrols available on AliExpress:
LCR0202
LCR0203
LCR1506
The ...
2024-08-12 13:44:28 +0000 UTC View Post
A small maker fair event was held in Hamamatsu, Japan, the home of Roland and Yamaha.
https://makezine.jp/event/makerfaire/hmmf2024/
There were 39 booths, and despite its small scale, it was sponsored by companies such as Yamaha, Roland, and Sony.
Since the city is a hub for musical instrument manufacturers, many of the booths featured instruments developed personally by employees ...
2024-07-09 15:11:27 +0000 UTC View Post
HOME BAKE INSTRUMENTS (HBI), known for creating gadget synthesizers in Japan, has uniquely ventured into selling Eurorack modules. This is an introduction to their very distinctive assembly method.
https://home-bake-instruments.localinfo.jp/posts/54038979?categoryIds=44083...
2024-06-30 06:17:57 +0000 UTC View PostHere's some additional information about the DIY SSI2131 VCO module.
https://note.com/solder_state/n/nf47861e3c1ed
1. Reason for Removing the Soft SYNC Function
The SSI2131 includes a soft sync function. I experimented with incorporating this feature into th...
2024-06-03 08:43:06 +0000 UTC View Post
Gerber data, schematic and BOM for the Envelope follower module PCB used in making the opto compressor.
The envelope follower circuit can function as a modular synth module on its own, but it also has its uses in compressor, wah, level meter, etc.
Video
https://www.youtube.com/watch?v=21ZDvu3n3l0
Document
Supplemental video for SSI2140 VCF.
One of the useful features of the SSI2140 VCF IC is the Q VCA.
Transistor ladder VCFs have the problem that when the resonance is increased, the amplitude of the original audio becomes smaller.
By using Q VCA, the problem of reduced amplitude can be avoided.
The sensitivity of Q VCA can be tuned by the resistance value. The video shows how it behaves when tun...
2024-04-05 11:02:46 +0000 UTC View Post
Vactrol is one of the parts that is difficult to obtain.
We compared LCR0203, which is inexpensive and widely distributed, and NSL-7053, which is used in some modules.
The voltage attenuation characteristics are clearly different.
NSL-7053 has near-instrument-like damping characteristics.
On the other hand, LCR0203 has good responsiveness and has excellent performance as an electronic component.
2024-03-22 04:00:04 +0000 UTC View Post
Article from my BLOG.
I have updated the links to DIY synthesizer circuit examples, knowledge and inspiration.
The articles are in Japanese, but many of the links are in English.
2024-03-16 15:23:23 +0000 UTC View Post
During my visit to the Tokyo Festival Of Modular, I also toured electronic component shops in Akihabara, Tokyo.
Akihabara is well-known for its shops related to anime, games, and a wide array of electronic components.
While it's easy to purchase electronic components online, the unique underground vibe of Akihabara's parts shops holds a special charm.
Here are the stores I visited:
During my visit to the Tokyo Festival Of Modular, I took the opportunity to explore several synthesizer shops in Tokyo. Given that these shops are concentrated in certain areas of Tokyo, it's possible to visit all of them within three hours.
Here are the stores I visited:
I attended the Tokyo Festival of Modular (TFOM) on November 25, 2023.
TFOM is Japan's biggest event for modular synths, featuring exhibitions, sales from modular synth makers, and live performances, among other things.
Due to the impact of the novel coronavirus, the event had downscaled in the past two years, but it has now returned to its usual scale.
When I first started getting into modular synths, the pandemic was already in full swing, so TFOM 2023 marks my first pa...
2023-12-16 16:17:08 +0000 UTC View Post
Here is a photo and schematic PDF and a supplemental video of the common mode noise.
Common mode noise is noise that flows from sources other than the GND line.
The linked video shows how noise increases when touching the wall. That noise is the 60 Hz household power frequency.
2023-11-22 17:14:57 +0000 UTC
View Post
The dollar-yen rate is 150yen/$. This is the lowest level in 25 years.
Now is the best time to buy modules from Japan.
There are two recommended ways to buy.
The first is to buy new Japanese modules from authorized dealers.
I recommend "Hikari Instruments" or "Centre village".
https://clockfacemodular.com/collections/hikari-instruments
<...
2023-11-17 07:10:14 +0000 UTC View Post
I bought a new power supply.
ALIENTEK DP100
Small DC power supply that works with USB PD.
Rated 30V,5A,100W
I bought it at Aliexpress for $53.
It is made in China, but the quality is good.
A review of the disassembly can be found at the X post in the link below.
https://x.com/magicarchtec/status/171334635218...
2023-11-04 15:41:48 +0000 UTC View Post
For my project I am using very cheap jacks bought from aliexpress. The price is less than 10 cents per unit.
They work fine, but the quality of the threaded part of the nut is poor. The threads are small and cannot be tightened hard enough.
The picture above compares it to a...
2023-10-20 15:00:03 +0000 UTC View Post
電氣美術研究會(EARS :Electronic Arts Research Society), a Japanese DIY modular synth parts store, carries several original products.
One of the products currently under development is a dress nut.
This is an anodized nut for 3.5mm jacks.
It is thicker than a regular nut, so it hides the threaded part of the jack.
I have made a CVsource module.
It does not have enough features to make a video, so I will publish it on patreon.
4HP , 3 outputs.
Output voltage is adjusted by POT.
The front panel and control pcb are appropriated from the past noize module.
Output range:
A.-1~+1V
B.0~+5V
C.-10~+10V
Arduino uno R4 is now available.
It is equipped with an MCU made by Renesas Electronics, and its faster processing and DAC show great potential.
With 5V I/O and many ADCs, the MCU is easy to use for modular synths compared to the Raspberry Pico.
A small Arduino R4 compatible board was sold in Japan.
It is expected that less expensive boards will be available worldwide in the near future.
Schematic PDF, BOM,additional photos,Gerber data, and arduino program files.
Gerber data contain 3 PCB files , front panel , control PCB , and main PCB.
Front panel is no silk data , only outline data.
Youtube
https://youtu.be/0U1iYyCgw60
Documents
https://note.com/solder_state/n/nac40740d6a91
https://note.com/solder_state/n/n372399e1a0f2
Schematic PDF, BOM and additional photos of the noise module.
I believe that ICs are difficult to buy globally, but are very easily available in Japan.
Ideally, film capacitors with stable performance should be used as capacit...
2023-07-21 16:19:48 +0000 UTC View Post
https://note.com/solder_state/n/n8c53c590193f
Schematic PDF, BOM and additional photos of the noise module.
2023-07-09 17:32:34 +0000 UTC View Post
https://modulove.io/shop/eurorack/module/kit/lfo-eurorack-low-frequency-oscillator-complete-diy-kit/
Several of my modules are available as kits at modulove.
SYNC ...
2023-06-30 14:56:08 +0000 UTC View Post
Proposed claves percussion circuit with gate input as power source.
I will not assemble it because of a few bad points.
1. It is difficult to adjust the frequency. If the impedance is out of balance, it will not attenuate and will not stop oscillating.
2. The output voltage is small, so there is a lot of noise during the amplification process.
2023-06-14 08:26:29 +0000 UTC View Post
A DIY event limited to MIDI equipment was held in Japan in April 2023.
I did not participate, but here are some articles in Japanese.
Sequencer with image recognition
Tesla coil performance
Acoustic instrument performance by solenoid
Synthesizer
etc.
2023-05-24 13:00:02 +0000 UTC View Post
Here is an introduction to the equipment and applications for shooting YouTube videos.
1. Camera
I use a smart phone.
These are cheap Chinese smartphones such as Xiaomi.
2.Recording
I use Roland Go mixer as audio interface.
Due to the spread of remote work, it has been in short supply since 2020, but I think it is relatively easy to obtain now.
3.Recording application<...
2023-05-14 13:16:58 +0000 UTC View PostOn March 28, 2023, the Japanese musician Ryuichi Sakamoto passed away.
I was influenced by him and started studying electronics and playing music.
My modular synth activities have their roots in Ryuichi Sakamoto.
I would like to introduce the relationship between Ryuichi Sakamoto and modular synths.
1. Buchla
Sakamoto Ryuichi studied composition at Tokyo University of the Arts, the most difficult art university in Japan.
... 2023-04-18 16:36:51 +0000 UTC View Post