the brain can't make sense of it and relays info to the conscious in the form of phonetics which are familiar to the person... That humble almighty brain...
Very insightful, Viktor.
Psychologists call this phenomenon "banalization", I believe. It probably explains why eye witnesses of the same event see different things. The variations are probably predictable when you factor in things like race, culture, religion, socio-economic status and so on.
In short, we see [or hear] what we expect to see [or hear] and the brain filters out a lot of what is inconsistent with expectation - automatically. The whole truth [or the real truth] never reaches "the conscious" so we are always convinced we are right, just as you say.
These rough-hewn "schemata" served our primitive ancestors very well in fight/flight situations where instanteous judgments meant the difference between life and death, but they are a great impediment to tolerance and understanding between different races and cultures and faiths and socio-economic groupings today.
As you say, "the humble almighty brain".