Xarp-56 Polysynth

"Xarp-56 (pronounced "harp") is a 56 string harp of Karplus-Strong string models. (56 voice polyphony).

The synth supports two ranges, one an octave above the other. The higher range is implemented by generating two samples for every DAC enable and decimating 1:2.

Each string model is an integer length 18 bit wide digital waveguide. Keyboard follow is applied to the bandwidth of the reflection filter.

Note that the highest note has 5.051 cents of tuning error. The rest of the harp tuning is better than 5 cents. I cannot hear the error in that one note.

This synth is targetted at a Xilinx Spartan-3A DSP 1800 Development board with a Cirrus CS4344 24 bit stereo DAC.

Ver_b: mono output signal to both channels."

You can find the project source and a sample here. No image as of this post.

via Scott on the SDIY list:
"The sound clip is a piece of Tchaikovsky's "Dance of the Sugar Plum Fairy" that I adapted for this instrument - the entire clip is played on one Xarp-56 instrument.

Verilog source is provided if you're interested.

While you listen, remember that this it is a single integrated circuit that is doing the DSP computations to make the sounds you're hearing."

Synthwood Sequential Circuits Pro-One

You can find more shots of the inside and outside here.

# Build Date July 2008
# Pacific Northwest Walnut

Note Shiva in the bottom shot.

Commodore 64 SoundExpander FM synth

YouTube via tretretretretretre6. Audio comes in at 1:14.
"FM Sound Module demo for Commodore 64" see the write-up here.

Oberheim 4 Voice

images at this auction

"Oberheim 4 Voice with Extra Micro Sequencer & enclosure"

Note people on AH are calling this auction a scam.

Midibox , preset sounds preview

YouTube via xtal202
"This midibox is not finished , I tested some sounds. I'm afraid my camera didn't capture the sounds with a good audio quality... this is my first video :-)"

Patch for Nov 15, 2008

YouTube via dkimcg
"I thought this sounded interesting. slower LFOs making slow interweaving changes. Sequenced by the Jomox 888, the MBase01 is heavily processed in the modular. All 888 and modular."

Vermona analog drum synthesizer

YouTube via Passie808
"This is a demo with the Vermona DRM 1 MK 3 analog drum module."

I Feel You - FUN WITH MOTIF VOCODER

YouTube via wendlinka
"mp3 version
my next cover song using vocoder of motif xs. created only with motif internal sequencer and using factory sounds.

enjoy my friends!

P.S. Dedicated to my Lovely Wife - Kisses!"

Aero Synth

YouTube via yudoinc. "Aero Synth for iPhone/iPodtouch"
You can get the full version of Aero synth here:

You can get the free version of Aero Synth here:

MFOS Modular

via wooster in this electro-music.com thread. You will find a link to more images there.

"MFOS modules include:
3x VCO
2x ADSR
2x LFO
1x SVF
1x Dual VCA
1x Noise Cornucopia
1x S&H

There are few a other DIY modules and a MOTM kit in there too. The strip in the middle is a mult/bus. The connections in the mult are ABCDABCDABCD etc... instead of AAAABBBCCCC... to make it easier to distribute signals."