

A small collection of externals used for various spectral processing. Includes objects for computing amplitude in decibels and a few complex math functions. 
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cartodb~

External 

Computes the amplitude in decibels of an fft bin. Useful for dynamics processing in the frequency domain, such as spectral gating.

cartonormdb~

External 

Computes the amplitude in decibels of an fft bin, normalized to value in first bin of each fft group. This form of db computation is typically used to analyze the spectral effects of a window.

complex.*~

External 

Computes the complex multiplication of two real/imaginary pairs. A good way to convolve two frequency domain signals.

complex./~

External 

Computes the complex division of two real/imaginary pairs.

complex.1over~

External 

Computes the inverse of a real/imaginary pair.

dbtocar~

External 

Computes the real and imaginary values based on a db amplitude and phase value. Useful for dynamic processing in the frequency domain, such as spectral gating.

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