Audio FFT

FFT stands for Fast Fourier Transform. It is an algorithm that performs spectral analysis on audio (this algorithm can work on images as well, but that’s not the intention here). The result of this algorithm tells you the magnitude of individual frequencies in an audio. As such it is most often used in audio visualization. […]

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Audio Input

Lightact can use a variety of audio inputs. Usually, it’s for audio analysis and audio visualizations, but you can also just re-route them to an audio output. The first step in using them is to insert an Audio Input node in the Devices (F7) window. When the node appears, select the Source deviceĀ and then check […]

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Playing Audio Files

Lightact can play .MP3 and .WAV audio files. In order to be able to play them, you first have to import them. You can do that by either pressing Ctrl+D or clicking on the Import button in the Assets tab. Find the audio you want to play in the dialog window that appears. Once imported, […]

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