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Oleg Ya. Shmelyoff
software download
Audio Spectrum Analyzer Real-time FFT, OscilloScope, Frequency counter, voltmeter, noise and distortion meters, phase shift meter.
Real-time OscilloScope + FFT Spectrum Analyzer of data accepted from sound card or other ADC you will want.
Two-channel multi-tone audio frequency sinusoidal & noise signal generator is intended for adjusting and measuring parameters of audio equipment.