According to our current understanding of physics, it is not possible for an object with mass, such as a human or any material object, to travel at the speed of light. The theory of relativity, specifically the theory of special relativity, sets an upper limit on the speed of objects with mass, which is the speed of light in a vacuum. As an object with mass approaches the speed of light, its energy requirements and mass increase exponentially, making it impossible to reach or exceed the speed of light.
In the context of your question, if we consider a hypothetical scenario where an object with mass could travel at the speed of light, the situation becomes difficult to analyze within our current understanding of physics. Special relativity predicts that as an object approaches the speed of light, time dilation occurs, causing time to appear to slow down from the perspective of an outside observer.
If we try to apply this to the scenario of hearing sounds before they are made, it would imply that the observer traveling at the speed of light would experience time dilation in such a way that events would appear to occur in a different sequence than they would for an observer at rest. However, attempting to extrapolate the specific consequences of such a scenario is beyond the realm of our current scientific knowledge and understanding.
It's important to note that the theory of special relativity and the speed-of-light limit have been extensively tested and verified through experiments. Thus, the idea of traveling at the speed of light and experiencing such temporal anomalies is currently considered speculative and not supported by empirical evidence or accepted scientific theories.