How often is the spectrum updated?

Hey, if i get the spectrum with DSP_FFT, how often is the spectrum updated?
If i used it in the update by Unity, the spectrum updated one time per frame with new values?

When you access the spectrum data of a DSP, by calling DSP::getParameterData, you get the spectrum data for that frame of audio. Each time you getParamaeterData you will get the latest information.