Convection is also one proposed mechanism for the so-called "red noise"

 Convection is also one proposed mechanism for the so-called "red noise" 

signals astronomers have observed in the photometric light curves of hot, massive stars—a mysterious pulsing that causes fluctuations in the stars' brightness. Specifically, it's been suggested that core convection, or turbulence from subsurface convection zones, could produce gravity waves that ripple outward to the surface. Those waves would compress and decompress the plasma, producing the brightness fluctuations in the star's light. Anders and his colleagues developed their simulations in part to test that hypothesis. 

The challenge: while some waves make it to the surface, others are trapped below and bounce around. So they needed some means of distinguishing between the two kinds of waves.

To do so, they turned to an acoustic analogy. "The character of music depends both on the sound waves produced by musicians and on the acoustics of the environment where is played," the authors wrote. "Music is recorded in special studios with walls that absorb or diffuse waves to minimize the influence of the environment on the sound and retrieve the 'pure sound' of the musicians. To experience music in a different environment, it is not necessary to physically transport the musicians; instead, one can apply a filter to the recording, mimicking the effects of the new environment."