frekvenciaátvitelt

Frekvenciaátvitel, often translated as frequency response, is a measure of how a system amplifies or attenuates signals at different frequencies. In essence, it describes how a particular device, such as an audio amplifier, loudspeaker, or even a digital filter, affects the various frequencies within a signal.

A system with a flat frequency response will reproduce all frequencies at their original relative levels. This is often the ideal in applications like high-fidelity audio reproduction, where the goal is to hear the sound as it was intended. Conversely, a system with a non-flat frequency response will emphasize some frequencies while reducing others. For example, an equalizer in a stereo system allows users to adjust the frequency response to suit their preferences or the acoustics of the listening environment.

The frequency response is typically represented graphically, with frequency on the horizontal axis (often on a logarithmic scale) and the gain or attenuation (usually in decibels) on the vertical axis. This graph visually illustrates which frequencies are boosted, cut, or passed through unchanged. Understanding frequency response is crucial in many fields, including audio engineering, telecommunications, control systems, and signal processing, as it directly impacts the fidelity and characteristics of the transmitted or reproduced signal.