Freesound Bundle

++chebyshev



A distortion unit which uses several low-order chebyshev polynomials to add even or odd harmonic distortion. This can be used to make a sound gently saturated (3rd chebyshev polynomial), harshly distorted (7th chebyshev polynomial) or like a dying amplifier (2nd or 4th chebyshev polynomials).
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++compand



is a combined compressor/expander plugin. It has a softknee control as well as a switchable rms/peak level detector. it also has a variable width level detection window (response).
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++decimate



uses bit depth and sample rate reduction for added aliasing and decimation noise. a very noisy plugin. useful for adding harshness, distortion and brightness to any sound.
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++matrix



is a mid-side to left-right encoder and decoder. for mid-side microphone arrays, but also useful when needing to apply effects to only the center or the sides of a stereo mix.
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++phasor



is a multistage phase shifter that has outputs for 360, 720, 1140 and 2880 phase shifting (1, 2, 4 and 8 notch). bandwidth, central frequency, feedback, and modulator parameters can be adjusted.
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http://www.soundhack.com/freeware/