identify vs. recognize, tee, understand

[Aleaf]

It is necessary to listen as much as possible until you can

identify/recognize/tell/understand the sound immediately.

In this sentence if the four words is interchangeable?
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Try to change youself before you try to change others.

[Jamie (K)]

I think you'll find they're different, Aleaf. A regular dictionary would give you adequate advice on this one.