# Forum: help

Monitor Forum | Start New ThreadRE: Window overlap in Welch periodogram [ reply ] By: Xose A. Vila on 2018-10-15 09:21 | [forum:46325] |

Dear Bruno, The shift parameter specify how many seconds the window is shifted for each spectrum calculation, this is not a %. For instance, size=120, shift=30 corresponds to windows of 2 minutes (120 seconds) shifted 30 seconds in each iteration. This corresponds to a 75% of overlap because each windows overlap 90 seconds. Sincerely, AntÃ³n. |

Window overlap in Welch periodogram [ reply ] By: Baracat Bruno on 2018-10-13 13:55 | [forum:46324] |

Hi When performing a frequency analysis with "CalculatePowerBand" what is the % of overlap of moving windows (these with width specified by "shift" )? Can we change this parameter ? Tks |