Iowegian's ScopeFIR™, ScopeIIR™, and ScopeDSP™ are affordable professional software tools for Digital Signal Processing.

ScopeFIR 5 is a comprehensive tool for designing, analyzing, and modifying complex Finite Impulse Response (FIR) filters. It designs FIR filters via the Parks-McClellan algorithm, as well as all other major FIR filter design methods.

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New! ScopeIIR 5 is a comprehensive tool for designing, analyzing, and implementing Infinite Impulse Response (IIR) filters. It can design filters from Butterworth, Chebyshev, and Elliptic prototypes, and lets you to adjust the resulting poles and zeros to fine-tune your IIR filter design.

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ScopeDSP 5 is a comprehensive tool for analyzing sampled-data signals. It transforms between the time domain and frequency domain using an efficient arbitrary-N Fast Fourier Transform (FFT). Its powerful analysis features provide plots and statistics for both time and frequency domains.

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New! ScopeDSP Suite combines ScopeFIR, ScopeIIR, and ScopeDSP into a single purchase at a significant discount.