Saturday, 28 January 2017

Wiard - Malekko - Megawave - Basic patch notes to help getting started.


This is not a oscillator on it's own.
It's a wavetable lookup device. 
There are 2,560 waveforms arranged as 10 ROMs of 16 Banks per ROM, with 16 Waves per Bank.
The module stores audio samples in the form of single cycle waveforms. 
It's the most recent incarnation of a line of modules which started with  Grant Richter's Wiard 300 Waveform City module. 
The module was born when it was realised that a rising sawtooth into an analog to digital converter could work as an address generator.
There are also "1410 Blacet" (frac rack) and ModCan versions out there in the wild. (The modcan version has it's own internal oscillator)

This is a eurorack version.
The Megawave functions in two different modes (0-10v or +/-5v) set by the “Range” selector switch on the top left. Depress for +/-5v (audio) mode.  
 
The button on the top right  is the input wave type selector for ascending & decending saw waves

So to use it as a VCO , you'll need another VCO. 
If you want the Megawave to track the input frequency of the VCO,
use a sawtooth wave. It should be usable with any VCO sawtooth except a Buchla 258 (which has a unique waveform where the sawtooth has a “divet” in it).
 
You can use other waveforms if you don't mind distortion.
It outputs waveforms from the selected internal ROM bank.
You can use a sequencer, EG, joystick, random voltages, etc to step through various waveforms.

The Megawave module has many functions.
These include:
  • audio waveform bank
  • complex LFO functions
  • random function generator
  • non linear waveform distortion
  • audio waveshaping
  • stage quantizing
These single cycle waveforms are stored in 10 ROMS.
Each ROM has 16 banks. Each bank has 16 waves.
You can select the ROM with the top right knob or a CV
 

1. Miniwave
2. Socket Rocket (Grant Richter)
3. PPG/VS
4. Darwin's House (Darwin Grouse)
5. Monowave (Paul Maddox)
6. Bosch Gardens (Mathew Davidson)
7. Morphine (Mathew Davidson)
8. Vector 1 (Mathew Davidson)
9. Vector 2 (Mathew Davidson)
10.  Scale Quantizer (Mathew Davidson)
 
 
The banks & waves are selected using the other pots / CV inputs.
The waves & banks are indicated with the numerical LEDs

---------------------------------------------------------------------------------------------

So to use it as a VCO patch like this.
The module must be  audio mode (ie +/- 5 volt range.)
Use the Input Offset for optimal audio input with minimal distortion. 

 To use it as a distortion device you may have to first amplify the inputed signal esp if its line level.



Euro rack audio levels are much hotter (5Vpp) than line levels (approx 1Vpp). 
I like the socket rocket banks for this.















When using the Megawave as a complex LFO you may find it doesn't go as slow as you want is you are using a standard Wiard Oscillator.


To solve this use a triangle or sawtooth LFO with a +/-5V or 0-10V swing, setting the Input Voltage Select switch accordingly.
 
The Wiard Anti-oscillator & Oscillator has a push button what turns them into LFOs.

The Wiard Envelator can also be patched to behave like a LFO





Using the Megawave as a quantizer.
Set it to the control voltage range (0-10v) .... that is the button is not depressed. 
The Input Gain adjustment ensures accurate quantizer functions tracking. Also acts as an input gain. 
0-10V gives 5 octaves.
Select the 10th & last ROM - Scale Quantizer
A 0-10V input will result in the following scales when the output is connected to a standard 1V/oct VCO.  


No comments:

Post a Comment