What aspect of video recording is affected by the amplitude modulation process?

The amplitude modulation process is closely related to how video signals are encoded and transmitted. Specifically, it influences the way brightness levels are represented in the signal. Amplitude modulation works by varying the strength of the signal in relation to the brightness of the image being recorded. As the amplitude of the video signal increases, it typically corresponds to brighter areas of the image, and conversely, a lower amplitude corresponds to darker areas.

This modulation affects the overall brightness levels in video recording. The modulation does not impact color depth or image clarity directly, as those aspects are determined by other processes—such as color encoding techniques and resolution. Magnetic signal strength pertains more to the medium of recording or broadcasting rather than the video image itself. Therefore, brightness levels are the aspect that is most directly influenced by the amplitude modulation process.