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Microphone Settings and Schedules
Each microphone connected to a SMART Controller can have its own Setting Profile and Schedule Profile. These profiles determine when the microphone is active; the settings it uses to detect, record, and analyze bat echolocations; and set the scheduling of microphone sensitivity testing and moisture clearing.
SMART MIC-1 Settings
Each SMART MIC-1 microphone connected to a SMART System can have independent settings. These settings govern everything from basic audio parameters to parameters defining how the SMART System detects bat pulses in each microphone's recorded audio.
Settings for Triggered Recording
Many settings available on the Setting Profiles tab only apply when Triggered Recording with Bat Call Analysis is enabled. These settings affect what kinds of signals will trigger recording and how the SMART will segment and process the resulting audio.
Pass-Level Trigger Settings
The Maximum Sequence Duration, Pre-Trigger, and Post-Trigger settings directly determine the maximum duration of your triggered recordings. The Maximum Inter-Pulse Gap also affects how SMART splits audio into separate files depending on the recorded bat activity.
Pre-Trigger and Post-Trigger Recording
During triggered recording, the SMART has the option to append Pre-Trigger and Post-Trigger recording periods to each triggered recording.

Terms of Use
Document History
This documentation receives frequent updates, which are described here.
Introduction
Song Meter® with Analysis and Remote Transfer, or SMART™, is a multi-channel, ultrasonic audio recording and analysis platform from Wildlife Acoustics®.
Getting Started
The first time you use a SMART System, we recommend setting it up in an accessible location, such as an office. This will make it easier to configure the SMART and perform any necessary troubleshooting.
Microphone Settings and Schedules
Each microphone connected to a SMART Controller can have its own Setting Profile and Schedule Profile. These profiles determine when the microphone is active; the settings it uses to detect, record, and analyze bat echolocations; and set the scheduling of microphone sensitivity testing and moisture clearing.
- Select a Microphone Setting Profile and Schedule Profile
  Each microphone attached to a single SMART Controller can have a unique Setting Profile and Schedule Profile selected from the ones included by default or that you create yourself.
- Creating and Editing Settings Profiles
  The Setting Profiles tab is where you can create and edit profiles to apply to each of the SMART System's microphones.
- SMART MIC-1 Settings
  Each SMART MIC-1 microphone connected to a SMART System can have independent settings. These settings govern everything from basic audio parameters to parameters defining how the SMART System detects bat pulses in each microphone's recorded audio.
  - Audio Settings
    The Audio Settings set basic parameters for incoming audio, such as recording format, sample rate, and gain.
  - Heater Settings
    The SMART MIC-1 has a built-in heating element for removing condensation, which can reduce the sensitivity of its microphone elements.
  - Calibration Settings
    The SMART MIC-1 can use its built-in ultrasonic speaker to test the sensitivity of its microphone elements at regular intervals during its recording schedule.
  - Settings for Triggered Recording
    Many settings available on the Setting Profiles tab only apply when Triggered Recording with Bat Call Analysis is enabled. These settings affect what kinds of signals will trigger recording and how the SMART will segment and process the resulting audio.
    - Pulse-Level Trigger Settings
      During triggered recording with bat call analysis, several settings define what signals will trigger recording and be analyzed as bat calls. On the level of individual echolocation pulses, the SMART System can filter signals by frequency range and duration range.
    - Pass-Level Trigger Settings
      The Maximum Sequence Duration, Pre-Trigger, and Post-Trigger settings directly determine the maximum duration of your triggered recordings. The Maximum Inter-Pulse Gap also affects how SMART splits audio into separate files depending on the recorded bat activity.
      - Maximum Sequence Duration
        During triggered recording, Maximum Sequence Duration sets a limit on what the SMART System considers a single sequence of bat calls.
      - Pre-Trigger and Post-Trigger Recording
        During triggered recording, the SMART has the option to append Pre-Trigger and Post-Trigger recording periods to each triggered recording.
      - Maximum Inter-Pulse Gap
        The Maximum Inter-Pulse Gap parameter sets the maximum duration of silence there can be after a echolocation pulse before the SMART System ends a given sequence.
      - Minimum Number of Pulses
        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.
    - Constant-Frequency (CF) Filter
      The SMART System has a built-in filter to avoid triggering on signals within a set of defined parameters. This filter can help avoid false triggers on signals such as electrical interference or mechanical squeaks.
    - Bat Auto-ID Classifier Settings
      The SMART System can automatically identify each saved recording by bat species using the built-in Kaleidoscope® Pro Sound Analysis software.
- SMART MIC-1 Schedules
  Each microphone attached to a SMART System can run an independent schedule, which determines when the microphone will monitor for bat activity each day.
- Change Microphone Name (Prefix)
  Each microphone attached to a SMART Controller can be given a unique name, or prefix. This prefix is used as part of the file name of any recording, results table, or log file associated with the microphone.
SMART Controller Configuration
Before you deploy the SMART System, you should configure basic system and network settings. These include login credentials, date, location, and network configuration settings.
Data Management
The SMART System stores recordings and logs on its internal drive initially, and it can periodically transfer new data to a USB or networked storage drive.
Installing SMART
Installing the SMART System on a wind turbine, meteorological tower, or similar structure requires careful planning. Proper connectivity, grounding, and microphone placement will help ensure a successful deployment.
Bat Activity Alarms and Control System Integration
The SMART System can integrate with a windfarm SCADA network or similar control system to perform acoustically triggered curtailment (ATC). You can define custom alarms that detect bat activity based on custom-defined parameters. When these alarms trigger, you can send control signals to other devices on a control system to trigger turbine shutdowns.
Troubleshooting
Specifications
SMART Enclosure
The SMART Enclosure is a preconfigured, weatherproof enclosure that can be purchased with the SMART System.
SMART API and Command Reference
The SMART System software includes utilities, command-line scripts, and APIs that can be used for additional customized programming of the SMART System.
Glossary
Warranty
Except as specifically provided herein, Wildlife Acoustics makes no warranty of any kind, express or implied, with respect to this product.
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Contact Information

Pre-Trigger and Post-Trigger Recording

During triggered recording, the SMART has the option to append Pre-Trigger and Post-Trigger recording periods to each triggered recording.

A typical use case for these settings would be to record any echolocation pulses that are loud enough to be discernible on a spectrogram, but not loud enough to be detected as pulses by the SMART's detection algorithm.

If you decide to use the Pre-Trigger and/or Post-Trigger settings, keep the following in mind:

Echolocation pulses that are not loud enough to trigger recording on their own will not be processed by SMART's auto-ID algorithm or bat activity alarms, even if they are recorded to audio during the pre- or post-trigger period.
It is possible that the pre- or post-trigger period of one recording may overlap with the beginning or ending of another recording. In this case, the same time period may be recorded as part of two separate recordings.

Example: Pre-Trigger and Post-Trigger Recording Periods

Imagine a bat flies in a straight path that passes near a microphone. Without pre-trigger and post-trigger recording periods and with other settings at typical values, the SMART will only record the bat's activity while it is close enough that its echolocation pulses are loud enough for the SMART to identify them as pulses.

If Pre-Trigger is set to 1 second, the SMART will additionally save one second of audio before the bat flew close enough to trigger recording. This may include echolocation pulses that a human vetter can see on a spectrogram but are not loud enough to have triggered recording.

Likewise, if Post-Trigger is set to 1 second, the SMART will record one additional second after the bat has flown away from the microphone, possibly including pulses that were too faint for the SMART to identify but loud enough to be discernible to a human vetter.