Kõrgsageduskompressioon

Kõrgsageduskompressioon is an Estonian term that translates to high-frequency compression. In the context of audio or signal processing, it refers to techniques used to reduce the size of digital data by selectively discarding or simplifying information in the higher frequency ranges. This is often based on the understanding that human hearing is less sensitive to very high frequencies, or that these frequencies contain less critical information for the overall perception of a sound.

The goal of high-frequency compression is to achieve a smaller file size without a significant perceptible loss in audio quality. This can be beneficial for storage, transmission, and streaming of audio content, especially in environments with limited bandwidth. Various algorithms employ different methods to achieve this, such as psychoacoustic models that analyze the audibility of different frequencies and noise masking effects.

While effective, aggressive high-frequency compression can sometimes lead to audible artifacts, particularly in complex audio passages or for individuals with exceptionally keen hearing. The specific implementation and parameters of the compression significantly influence the trade-off between file size reduction and audio fidelity. This technique is a component within broader audio compression standards like MP3 or AAC, contributing to their efficiency.