SpectraPLUS FFT Spectral Analysis System 5.0

SpectraPLUS FFT Spectral Analysis System by Pioneer Hill Software is a professional-grade signal analysis application that turns your Windows PC into a powerful spectrum analyzer. Built around high‑performance FFT processing, it delivers precise real‑time measurements and clear visualizations for audio, acoustics, and general signal analysis.

Designed for engineers, technicians, educators, and enthusiasts, SpectraPLUS provides the tools you need to evaluate frequency response, characterize systems, troubleshoot noise and distortion, and document results with confidence.

Key capabilities include:

• Real-time FFT spectral analysis with adjustable resolution, windowing, and averaging
• Dual‑channel measurements such as transfer function, phase, coherence, and cross-correlation
• Time‑domain tools including oscilloscope views, waveform recording/playback, and impulse response
• Spectrogram and waterfall displays for time‑frequency insight
• Octave and fractional‑octave (RTA) analysis for acoustics and noise work
• Built‑in signal generators (sine, sweeps, noise) for stimulus and test
• Harmonic and distortion metrics (THD, THD+N, SINAD, SNR, crest factor)
• Calibration to physical units (e.g., dB SPL) with A/C/Z weighting options
• Flexible cursors, markers, peak/hold, data logging, and export to common formats (e.g., WAV, CSV, images)
• Compatibility with standard Windows audio interfaces and professional ASIO devices

Whether you’re tuning loudspeakers and rooms, validating audio products, conducting acoustic measurements, or teaching signal processing, SpectraPLUS offers a reliable, accurate, and easy‑to‑use solution supported by Pioneer Hill Software’s long-standing expertise.

SpectraPLUS FFT Spectral Analysis System is developed by Pioneer Hill Software. The most popular version of this product among our users is 5.0.