'super-60' is another effort to recreate the physical and electronic spectral effects of an electric instrument amplifier, applying the same methods as the predating 'unmatched' project. In short, it makes a signal sound very much like it went through my beloved Fender Super 60 amp, bar nonlinear effects and intra-cabinet reflection.
Unlike traditional convolution methods, it employs a 16th order IIR filter to emulate a pre-recorded impulse response, resulting in realtime-compatible CPU usage figures (4-8% on a ~500 MHz box).
It comes as a LADSPA plugin.
You may want to read the Gnu Public License that covers this plugin.
Here's the source code: super-60.tar.gz.
For those interested, here's the original impulse response that has been the filter converger target: super-60-response-5.wav.
$ tar xvfz super-60.tar.gz $ cd super-60 $ make # make install
The plugin runs under the name super-60.so, with LADSPA ID 1764. It has one audio input and output port each, there are no parameters to set.
Please be aware that the impulse response used to shape the filter has been recorded at 44.1 kHz. Running the plugin at different sample rates will result in a shifted frequency response.
It should also be noted that the plugin's frequency response contains some peaks that can easily lead to excessive output levels when fed a hi-energy signal (such as an overdriven guitar signal, eg. a square wave).