Abstract: In some examples, a non-transitory machine-readable storage medium having stored thereon machine-readable instructions to cause a processing resource to determine a intra coded bitrate of a captured video, determine a stutter ratio of the captured video, and estimate a video quality of experience based on the intra coded bitrate and the stutter ratio of the captured video.

Abstract: Examples include classifying high frequency radio signals. Some examples include receiving a fast Fourier transform (FFT) of a high frequency radio signal, determining a first signal strength at a first guard frequency bin, determining a second signal strength at a second guard frequency bin, and determining a third signal strength at a direct current carrier frequency bin. Examples also include classifying the high frequency radio signal based on the first signal strength, the second signal strength, and the third signal strength.