DSP Robotics Support

UniRetro synthesiser with sequencer

This synth features step sequencing and I do like the GUI and its elements. The author has provided 22 great presets and these will appeal to those loving retro sounds. I expect, as is often the case, that the synth can do much more than the presets suggest so have a play and see what you think.

Spogged: Unusually the MIDI input was buried deep in the schematic so I bought it out to the top level.
Also set the preset manager to lock the author's presets.

Author: Unknown

Cheers

Spogg

Peak hold meter

This contains DSP code for outputing the peak value of a signal. You can set the hold time and the decay time for the bar graph vu meter. The response (attack) time is super fast and the included test environment confirms this to be the case.

Spogged: Nothing

Author: Cyto

Cheers

Spogg

Variable Hue, Saturation and Brightness LED

Useful demo of HSB creation and colour matrix prim and here used to see the effect on a bitmap-based LED.

Spogged: Nothing

Author: Unknown

Cheers

Spogg

Arpeggiator and trance gate collection

Here are 3 schematics each containing an arpeggiator and trance gate with different functions, as described by their filenames. They were all uploaded on the same day originally, so I imagine they are all at the same version level, just with different features.

Spogged: Nothing

Author: Unknown

Cheers

Spogg

Supersaw synthesiser

I do like synthesisers that focus on a specific technique and this does just that. It's all about multiple unison sawtooth waves. The author has provided 15 presets to show off the method and a nice compact GUI. There's some interesting stuff going on under the hood too.

Spogged: Locked the presets to preserve them.

Author: Warmy (some parts by Mo).

Cheers

Spogg

Information popup box

This could be a very useful ready-made tool for providing help or information. Click a small icon and you get a text box appear (wherever you drag it to in your module). The help text is edited inside the module and, importantly, it features a scroll bar so you can easily provide a large amount of information. Click the icon again and it's gone.

Spogged: Nothing

Author: Unknown

Cheers

Spogg

Stream FFT and iFFT

I'm not really the one to comment on this kinda thing but this does look interesting. A signal is converted via FFT to real and imaginary parts, these are then fed into an iFFT and out comes the original waveform in the correct phase. This is done live at stream rate! Scopes and a test environment are provided to demo the process and results.

Spogged: I rigged up an ASIO input and listened to the re-constructed voice from my microphone and it sounded spot on. What dark magic is this?

Author: Martin Vicanek

Cheers

Spogg

Stylophone thing

This was a fun surprise! It's a great sounding and looking synthy Stylophone with the real look of the original's "keyboard". I love it!

Spogged: Nothing

Author: Cyto

Cheers

Spogg

Knob with readout and value input

I do like a nice knob!

This one has a configurable readout but the twist is that if you left-double-click the knob you can freely enter the value you want as accurately as you want. The knob then goes to the appropriate position and the value is set. No more fiddling!
This could be very useful for coarse and exact setting of frequency for example.

Spogged: This was a corrected version so I modified the original text comment box which hadn't been updated after the fix.

Author: Unknown

Cheers

Spogg

Amplitude to MIDI CC

Nice simple idea. This takes a signal level and converts it to a configured MIDI CC value.
The author has provided a demo environment showing its use with an LFO and an envelope follower.
With the envelope follower you could, for example, control a filter opening by using your voice.

Spogged: Nothing but note I haven't tested this with any external MIDI device.

Author: Unknown

Chers

Spogg