Low Frequency Oscillator (LFO) in Synthesizer

The Music Telegraph | Text 2024/02/19 [17:03]

Low Frequency Oscillator (LFO) in Synthesizer

The Music Telegraph| 입력 : 2024/02/19 [17:03]

 

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Low Frequency Oscillator (LFO) in Synthesizer

 

Low Frequency Oscillator (LFO) is a type of audio oscillator that operates below 20Hz. For reference, the audio oscillator operates in the audio range of 20Hz to 20kHz. The LFO creates modulation by periodically creating a certain value. Usually, LFOs are applied to pitch to create vibrato, or applied to filters to create tremolo. The LFO uses several waveforms to create periodic modulation. In most cases, basic waveforms such as sine waves, pulse waves, and sawtooth waves are used. Some synthesizers allow LFO waveform modulation to change the simple waveform of the LFO. Most LFO waveforms move in both + and - directions. However, there is a waveform that moves only with + direction. For example, in string instruments, vibrato always progresses towards + direction and rarely changes pitch towards - direction. In LFO, there are variables such as waveform rate, depth, and delay.

 

 

 

 

 

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