Chirp Token Sender + Receiver

Generates a random 6-character Base36 token, encodes it as shaped chirps with CRC, then plays it or injects it directly into the decoder for testing. This version uses a more robust acoustic profile for real device-to-device testing.

Sender

Output volume 1.00
Generated Token
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Sender Packet
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Audio Length
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Receiver

Sync threshold 0.16
Receiver Status
Idle
Decoded Token
----
Decode Confidence
----
Best Heard Sync
No sync scan yet
Microphone Input Level
Start listening to measure input

Signal View

Sync 2200 to 6200 Hz Bit 1, 3200 to 5200 Hz Bit 0, 5200 to 3200 Hz 15 ms per bit 6 bytes, 48 bits

Event Log