Table 2 Message obtained with a deviation of 50Hz from the encryption frequency.

From: Information encoding and encryption in acoustic analogues of qubits

− 0.2552

0.9588

0.0144

0.7950

− 0.0303

0.8222

− 0.1519

0.8961

0.0252

1.0025

0.1947

− 0.1024

0.1464

− 0.0740

0.0820

0.9424