noisy audio recogniser (only numeric 0 to 9)

I need a script to recognise the number in audio.

Only 4 characters. Noisy Background. In Both Cantonese or English.

Please PM and I will send you the audio example.

P.S. Please Direct Message me. I don't know why I cannot PM and post reply here

Hello
Is this done by manually?

I can do it with python if the noise is not too much. Can you PM me a sample audio file?