Sonic Threshold

The audio titled "Sonic Threshold" commences with the powerful, reverberating hum of a plane engine. It's a dynamic, persistent sound – a testament to the might and marvel of aviation technology. The sound of the engine gradually escalates, suggesting the plane is gathering speed on the runway, about to embark on its airborne journey. Suddenly, an audible shift is noticed. The previously steady, monotonous drone of the engine transforms into an intense, high-pitched whirr. This abrupt change in the audio indicates the plane's attempt to breach the sound barrier. The sonic boom, a thunderous clap, echoes in the backdrop. It signifies the plane crossing the sonic threshold, a feat that once seemed impossible. Following the sonic boom, the audio mellows down into a calm, serene hum. This suggests the plane has stabilized at its supersonic speed, smoothly soaring high above the clouds. The listener can almost visualize the plane, a tiny speck against the vast, azure