spcore¶ ↑

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Description¶ ↑

A library of signal processing methods and classes.

Features¶ ↑

• Resampling (discrete up, down and up/down, polynomial up, and hybrid up/down)

• FFT transform (forward and inverse)

• DFT transform (forward and inverse)

• Windows (Blackman, Hamming, and many more…)

• Windowed sinc filter for lowpass and highpass.

• Dual windowed sinc filter for bandpass and bandstop.

• Interpolation (linear and polynomial)

• Data plotting via gnuplot (must be installed to use).

• Delay line

• Biquad filters

• Envelope detector

• Conversion from dB-linear and linear-dB

• Oscillator with selectable wave type (sine, square, triangle, sawtooth)

• Signal abstraction class

• Extrema & Envelope measurement

• Normalization

• Derivatives

• Correlation

Examples¶ ↑

require 'spcore'

Requirements¶ ↑

Install¶ ↑

$ gem install spcore

Copyright¶ ↑

Copyright © 2013 James Tunnell

See LICENSE.txt for details.