MATRIXSYNTH

Sequential Circuits DrumTraks Model 400 Vintage Drum Machine SN 0331

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Roland TR-808 Rhythm Composer Drum Machine

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via this listing

"Fully functional and in amazing cosmetic condition for its age.

This TR-808 has been serviced for reliable studio use. Service notes include (11/21):

- Replacing all tactile switches
- Replacing all mixer potentiometers
- Cleaning and Flushing other potentiometers
- Cleaning all I/O Jacks
- Replacing old Battery Compartment
- Testing for burn-in period of several hours"

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Roland Jupiter 4 Vintage Analog Synthesizer with Case

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"Fully functional jp4 in great cosmetic condition for its age. Features wear and pitting on the front panel but does not affect functionality. This is a rare early model featuring the BA662 filters. Comes with a rare Roland branded hard case."

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Farfisa Soundmaker 61-Key String Synthesizer SN 6644

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HAILSTORM Firmware 1.2

video upload by otemrellik

"Firmware 1.2
https://rainydayei.com/shop/hailstorm/

New 'Sets' - allowing for 4 sets of 12 kets / sequences
New FX probability mode"

No Input Modular Synth | Feedback Morpheus Piano1, Beads & Data Bender

video upload by Akihiko Matsumoto

Rec: Feedback Noise (Sample Pack) https://akihikomatsumoto.bandcamp.com...

DIY Oscillator using PIC12F1571

video upload by alloutofsync

"I used this weekend to create a square wave oscillator that operates with the PIC12F1571, which is an extremely affordable CPU available for just $0.71 each.

Since it was my first time using PWM, I spent an entire day generating a square wave at the desired frequency. The required settings and their interconnections were so complex to me, so that I had to carefully investigate each one as I went, which was quite challenging.

The next day, I spent working on ensuring that the output sound smoothly followed the CV input. To convert the CV input into a frequency assuming 1V/Oct, exponential calculations are typically used. However, the PIC12F1571 has limited program memory, so I couldn't use a floating-point math library. I had no choice but to approximate the calculation of powers of two using a Taylor series expansion and rely solely on integer arithmetic. Initially, I approximated up to the second-order term, but the accuracy was insufficient at higher frequencies. Eventually, I extended the approximation to the fourth-order term, which gave excellent results.

While testing with the Pico3 sequencer, I noticed that when the RATE was set to the maximum, the output failed to keep up with the changes. Increasing the PIC's clock frequency from 1MHz to 4MHz resolved the issue, and it followed the changes without any problems.

At this point, about 70% of the program memory has already been used, so I'm not sure how much further I can expand. At the very least, I want to implement duty cycle adjustment. If possible, I’d also like to use an additional PWM channel to detune and combine the signals for richer synthesis."

Arturia Minifreak synth demo not talking

video upload by Blossom Bisquits

Moog One | Sound Bank Vol. 1 by Synth Universe

video uploads by Synth Universe

"In this video I play custom sounds created for the Moog One synthesizer. I demo patches 1 - 32 from the Synth Universe Moog One Sound Bank Volume 1: a bank of 64 pro quality patches containing a wide range of pads, strings, brass, poly synths, keys, ambient and soundscapes.

Buy the Synth Universe Moog One sound banks here: https://synthuniverse.sellfy.store

Any effects you hear on the sounds in this video are internal to Moog One. I mainly use delay and/ or reverb and several patches use no effects at all. I generally do not use the chorus and modulation effects as they colour the sound too much (in fact my main use of the chorus is set at 0% mix to add gain to a patch). No external processing was applied in the making of this video.

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