Listen to generated sentences, key in your own, and learn the alphabet.
Set lower than char WPM to stretch gaps between letters & words (Farnsworth method). Dots & dashes stay at full speed; only the silences get longer.
Short tap = dot, long press = dash. A gap auto-ends a letter; a longer gap adds a space. Timing scales with WPM.
Raise if background noise triggers false dots. Lower if weak signal is missed.
Ignore tones shorter than this (filters clicks & noise spikes).
Point a Morse key beeper, radio receiver, or phone speaker at your mic. The decoder adapts its dot/dash threshold to the signal's own timing. "Accuracy vs sentence" compares decoded text against the current Listen & Decode sentence (if one has been generated).