This version (06 Aug 2012 20:37) was approved by Brett Gildersleeve.

VAD Flag

Click here to return to the ADI Algorithms section of the toolbox.

VAD Flag takes the Modulation Index and compares it to a threshold value. If the threshold value is met for the designated amount of time, the output flag is set high, otherwise it is low.


  • Unordered List ItemModulationIndex


  • Unordered List ItemConditionFlag: 0 or 1 output determining if speech is present or not

Parameter Control:

  • Threshold: dB value for comparison with Modulation Index
  • Count: Time value in (ms) for condition to be met before setting flag high
resources/tools-software/sigmastudio/toolbox/adialgorithms/vadflag.txt · Last modified: 06 Aug 2012 20:37 by Brett Gildersleeve