Digital Signal Processing utilities

Collaboration diagram for Digital Signal Processing utilities:

Modules
	Signal generators
	Real time signal handlers

Classes
class	PowerSpectra
	Computes single-sided cross-power spectra for a group of channels. Only a single block of length fft, no averaging. This class should normally not be used. Please refer to AvPowerSpectra instead. More...
class	AvPowerSpectra
	Estimate cross-power spectra using Welch' method of spectral estimation. The exact amount of overlap in Welch' method is rounded up to a certain amount of samples. More...
class	SeriesBiquad
	A set of Biquad filters in series. More...
class	BiquadBank
	Multiple biquad filters in parallel, each multiplied with a gain value, and finally all added together. This class can be used to create a graphic equalizer. More...
class	Fft
	Perform forward FFT's on real time data. Computes single-sided spectra, equivalent to Numpy's rfft and irfft functions. But then faster as it can use a fast FFT backend, such as FFTW. More...
class	SLM
	Sound Level Meter implementation that gives a result for each channel. A channel is the result of a filtered signal. More...

Detailed Description

These are classes and functions used for processing raw signal data, to obtain statistics.