distinguishability lab
you are the sender: pick a symbol, watch the noisy readings arrive, and see when the receiver gets it wrong.
received:
simulated noise — the signal could be light, voltage or sound. the real numbers come from measuring your own link.
sending symbol
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click a lane, or press its key
error rate
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of the last 400 symbols
symbol rate
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one symbol per window
bits per symbol
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throughput if error-free
–
rate × bits per symbol
symbols in the alphabet
display speed
measurement window (integration time)
keys: 0–9/a–f send symbol · ↑/↓ choose · space pause · m measure once · d disturb
longer windows calm the readings and cost rate. more symbols carry more bits and shrink the gaps.