The Minimum Number of Pulses parameter defines how many pulses must have been detected in a single sequence for the audio to be saved and analyzed.
A triggered sequence will end either when the period of silence after a pulse exceeds the Maximum Inter-Syllable Gap or if the total duration, beginning from the first pulse, exceeds the Maximum Sequence Duration. When the sequence ends, the SMART System checks whether the sequence contains the Minimum Number of Pulses or more. If it does, the SMART System will save the audio to its internal drive, run bat auto-ID on the recording, and process the pass-level bat call analysis measurements through any pass-level alarms.
Every detected pulse is processed through pulse-level alarms, even if the number of pulses in a given sequence does not meet the minimum threshold. If Minimum Number of Pulses has a value greater than 1, this can mean that individual pulses are processed through pulse-level alarms without being saved as audio recordings. However, setting Minimum Number of Pulses to a value greater than one can help reduce the number of recordings triggered by non-bat sounds.