A-SID

A-SID allows you to turn your C64 into a wah effect. No hardware modification is required, but you need to build yourself one or two adapter cables and copy the program to a cassette. Instructions are given on the product web page.

Otherwise, if you are not a lucky owner of one those marvellous machines, you can download the free plugin that gives you the possibility to experience A-SID on modern computers as it simulates the original analog filter.

Features

• Resonant bandpass filter 6 dB/oct;
• Nice steppish behavior, smoothing-free;
• 16 selectable values for center cutoff, LFO amount, and LFO speed (via joystick on C64, and mouse/touch on modern rubbish devices);
• 400 Hz to 2.2 kHz cutoff frequency on VST3 and newer C64s with MOS 8580 SID chip, some other unpredictable range on older C64s with MOS 6581;
• Sinusoidal LFO with 256 output values;
• Circa 0.4 Hz to 25 Hz LFO frequency range, a little bit swingy on C64;
• Modern, interactive, and epilepsy-inducing hi-res mode 320x200 pixels graphics with visual feedback and using 11 colors (freely resizable in the plugin);
• Support for one expression pedal on C64 (interfaced as a paddle) as an extra source of modulation, with calibration procedure at boot.