Time Domain
Signal + Noise
Signal Type
Frequency
Noise Level
Filter
Cutoff
SNR
10 dB
Audio
Frequency Spectrum (FFT)
Real-time Analysis
Filter Response / Convolution
Impulse Response
Lesson 1: The Nature of Signals
CHALLENGE
Extract a clean 440Hz sine wave from noisy input
Target: Achieve SNR > 20dB
Achievements
Level 1
0 / 100 XP