People say "um" and "er" when hesitating in speech as a filler, giving them time to think of what they want to say next. Using these words allows individuals to maintain control of the conversation while they formulate their thoughts.
sounds like typical transmission problem
When you accelerate. you are putting presure on the main engine barrens. if they are going bad. You will hear this knocking sound. I don't know how many miles you have on this engine. But that's what it sounds like. But that's not all that can make this sound. You will have to tell more about it and when it started. Did it just start all at once? or did it start and then get louder?
Sounds like a loose accessory belt or a bad belt tensioner.
Possibly tappets.
sounds like the catalytic converter.
It sounds like the timing is set too high and needs to be lowered...
The phrase "hemming and hawing" likely originated from the sounds people make when hesitating or trying to think of something to say. "Hem" and "haw" were used in the past to represent these sounds, and over time, the phrase came to describe someone who is hesitant or indecisive.
Sounds like the tranny is gone, you'll need to replace it/have it replaced or rebuilt.
This is a metaphorical term. Sounds form patterns but they do not form actual shapes. A melodic contour would be the shape of the melody.
It sounds like the Throttle Position Sensor needs replaced.
Sounds like it could be a dirty fuel filter, try taking it off and cleaning it.