Second, what the speaker actually says. The mouth is not always an accurate channel for the mind. Third, what the speaker is remembered to have said. This is very obvious in seminary classes when tests are given. Fourth, what the hearer wants to hear.
Listeners are prone to hear what they want to hear from a speaker.
Fifth, what the hearer actually hears and finally, what the hearer thinks he hears. A cute example of communication breakdown is a reading on Command Confusion by P.T. Bailey. A Colonel issued the following oral directive to his executive officer. Tomorrow evening, at approximately 2000 hours, Halley's Comet will be visible in this area, an event which occurs only once every 75 years. Have the men fall out in the battalion area in fatigues, and I will explain this rare phenomenon to them.