An engine whistle is loud and piercing, and it is used to indicate that the engine is about to start, so the simile indicates the voice is loud and piercing.
Context: After weeks of being cooped up in that house, my words come out huffed, pitched high and strong.
Hypothesis: After all these weeks of being shut in that house, my words appear like an engine whistle

Given this context, is the hypothesis true (Yes/No/I don't know)?