"K5HLB" in English could be rewritten as "Key Five Hotel Lima Bravo".

In the audio, the code "K5HLB" is deciphered, transforming it into a more understandable English language sequence, "Key Five Hotel Lima Bravo." The context suggests a scenario involving communication in transit, possibly in the air or on a train, where such codes are often used. The element of a 'horn' could symbolize an auditory signal accompanying the code, further enhancing the communication. Each term in the sequence symbolizes a letter, such as 'Key' representing 'K', 'Five' for '5', 'Hotel' for 'H', 'Lima' for 'L', and 'Bravo' for 'B', collectively forming the original code 'K5HLB'.