The SAW wave (pictured below) gets its name because it looks like the jagged edges of a saw. The waveform name comes from the shape of the waveform. Here are some typical waveforms available: We usually break down the sounds generated into various waveforms. In synthesisers, there is usually at least one Oscillator – and often, more than one. The Oscillator is the originator of the sound or tone. The OscillatorĪn Oscillator in the audio world is a device or component that creates a tone or sound (Waveform). So, rather than referring to Oscillation as a back and forth movement, we visualize it as an up and down movement. In audio, we often view the waveform on a horizontal axis. If somebody jumps in shortly after the first person on the opposite side of the pool, those waves will send you back towards where you started.
If you are lying on a raft in a swimming pool and somebody jumps in on one side of you, there will be waves moving towards you, pushing you towards the other side of the pool. The ocean wave represents a waveform in the audio world, and Oscillation is the movement back and forth of a sound. They are continuous and at a regular speed. The waves in the ocean move towards the shore in a rolling motion. To help visualise a waveform, think of the ocean.
Oscillation is defined as movement back and forth at a regular speed. Before we get into what a Low-Frequency Oscillator does, we need a clear understanding of a couple of terms: Oscillation and Modulation. That sounds complicated, doesn’t it? So what exactly is an Oscillator? By the end of this article, you will have an understanding of the LFO and how to use it. Wondering ‘what does LFO stand for in music’? LFO stands for Low-Frequency Oscillator.
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