Frekvenciaugatás

Frekvenciaugatás, often translated as frequency scaling or frequency bending, is a technique used in some audio synthesizers and effects processors to alter the perceived pitch of a sound without directly changing its playback speed. Instead of slowing down or speeding up the entire waveform, frekvenciaugatás manipulates the fundamental frequency of the sound source. This is typically achieved by digitally altering the frequency at which the oscillator or digital signal processing algorithm operates.

The effect can range from subtle pitch variations to extreme, often metallic or distorted, shifts in tone. When applied to a sustained note, it can create a vibrato-like effect, but with a different character than traditional vibrato, which often involves modulating amplitude or phase alongside frequency. In more extreme applications, frekvenciaugatás can lead to sounds that are significantly detuned or have a "wobbly" quality.

This technique is distinct from pitch shifting that maintains the original duration of the sound, as frekvenciaugatás inherently alters the perception of time in relation to pitch. It is a common feature in certain vintage synthesizers and can be found in modern digital audio workstations and plugins as a creative sound design tool. The precise implementation and resulting sound can vary greatly depending on the specific hardware or software.