Listening closely, you hear faint sounds of the city awakening across the Nile. (sofitel.com)
Since it is a moving noise and happens at a relatively high speed it will probably be a very faint sound when the car is on blocks (and may not occur at all if it requires a loaded suspension). (mechanics.stackexchange.com)
On the chip's surface, which is cooled to near absolute zero -LRB--- 459 degrees Fahrenheit) to eliminate thermal vibrations, two tiny aluminum cones connected by an electric field generate extremely faint sound waves that bounce back and forth. (discovermagazine.com)