Wildlife Acoustics Echo Meter Touch User Manual
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Wildlife Acoustics Echo Meter Touch User Manual

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1

Overview

1.1
1.2
1.3
2

Using Echo Meter Touch

2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
2.10
3

Recordings

3.1
3.2
3.3
3.4
3.5
3.6
3.7
4
4.1
4.2
4.3
4.4
Updated on October 21, 2017 for App Version 2.2.4

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Summary of Contents for Wildlife Acoustics Echo Meter Touch

  • Page 1 Overview Echo Meter Touch Ultrasonic Modules App Features Leave Feedback or Review the App Using Echo Meter Touch Connecting the Ultrasonic Module Navigating the app Monitoring in Live Mode Configuring Auto-ID Recording in Live Mode The Recording List Viewing Spectrograms of Recordings GPS View Advanced Settings Screen 2.10 Restore Defaults Recordings Filenames for Recordings Metadata Tags for Recordings Sharing Recordings via Email or Text Message Backing Up Recordings Transferring Recordings to a Computer Importing Recordings Analysis Software Specifications Physical Audio Storage Requirements Android Device Compatibility Updated on October 21, 2017 for App Version 2.2.4...
  • Page 2 Overview Echo Meter Touch app with an Echo Meter Touch Ultrasonic Module allows you to listen to, record, and identify bats with your Android phone or tablet. The Echo Meter Touch offers exclusive features and unprecedented ease-of-use for a handheld bat detector.
  • Page 3 1.2 App Features Listen to bat echolocations in real time Echo Meter Touch translates bat echolocations into frequencies that are audible to humans using two technologies. Wildlife Acoustics’ patented Real Time Expansion (RTE) allows you to listen to bats in real time with unparalleled fidelity. RTE maintains the timing and tonality of the original echolocations.
  • Page 4 Meter Touch allows high quality recording suitable for analysis by experts. The built-in Auto-ID feature also suggests the two most likely bat species for each recording, for the enjoyment of enthusiasts hoping to learn more about bats. These automated identifications, though largely accurate, should not be relied on as a basis for scientific research.
  • Page 5 If you like the app, please let others know by selecting Review this App from the Information page. Using Echo Meter Touch This section describes how to use the Echo Meter Touch app to monitor bats. NOTE: The display examples in this guide were composed on an iPhone in portrait orientation.
  • Page 6 2.1 Connecting the Ultrasonic Module The Echo Meter Touch Ultrasonic Modules sense ultrasonic signals, digitize the signal, and transmit the ultrasonic data to the Android phone or tablet. Plug an Ultrasonic Module into the micro-USB connector of your Android device and you can immediately start listening to, recording, and identifying bats.
  • Page 7 2.2 Navigating the app To navigate through the app, press the main menu symbol. You can go to other sections of the app while still hearing and recording bats. You can even continue to monitor and record bats in the background while using other apps. The main menu symbol...
  • Page 8 2.3 Monitoring in Live Mode In LIVE MODE, ultrasonic data is streamed to your Android device. The frequency and duration of the bat echolocation calls are visually represented in a scrolling spectrogram. Waveform Spectrogram Frequency scale in Time scale in milliseconds In LIVE MODE you can scroll back and zoom into portions of the scrolling spectrogram.
  • Page 9 (drag to move) RTE/HET/OFF toggle Spectrogram Settings You can listen to bats using Wildlife Acoustics patented Real Time Expansion (RTE) or Heterodyne (HET). RTE translates the ultrasonic sounds to a range that is audible to humans by taking tiny snippets of the sound and slowing it down. Since...
  • Page 10 Contrast of the spectrogram Recording Frequency Threshold In Compressed mode, the Echo Meter Touch only shows spectrograms containing ultrasonic signals. The spectrogram does not scroll unless there is a signal such as bat echolocations. In Expanded mode, the spectrogram scrolls in...
  • Page 11 real time. Use this mode to examine the timing between previous bat echolocations. Because the signals scroll too quickly, this mode is not recommended for monitoring. Tap the STOP button to stop streaming data and put the Ultrasonic Module into a low-power state. Press START to resume.
  • Page 12 Use dropdown to select only bats in your area for most accurate results Tap a species to learn more about the species or view the Merlin Tuttle portrait. Grey checks indicate the species is in your area but the app can’t yet identify it.
  • Page 13 15 total minutes is reached. The NOISE filter will not act on manual recordings and Auto-ID will only run in real time if the length is under 60 seconds. During triggered recording, the Trigger Minimum Frequency, in the Spectrogram Settings panel, should be set as high as possible but lower than any expected bat echolocation.
  • Page 14 into nightly sessions (noon to noon) regardless of the number of times recording is stopped and started. Each nightly session exports in its own folder with its own KML file. Using manual recording, the app automatically uses nightly session mode for those recordings so as to avoid making a folder for every recording.
  • Page 15 to the recording name. You can rerun Auto-ID if you should choose to select different bat species to ID. In addition, from the recording you can choose another label from your selected bat species by pressing the yellow bat in the recording label.
  • Page 16 Save Note Record voice note: tap to start and stop Write text note 2.6 The Recording List Here you can see a list of all of your recordings. The list can be sorted by Time or Species. The latter is useful to sort by species for identified recordings or to sort out noise or NO_ID recordings.
  • Page 17 recording above or below. This will check all boxes in between. Icons indicate recordings with voice or text notes and recordings with an identified species Colored recording session identifier Show summary pop- Press the Summary button to show a pop up screen with the number of recordings with each identified species, NO_IDs, and the NOISE files.
  • Page 18 Check all recordings Identify checked recordings Transfer checked recordings via Wi-Fi or share via Email or Check individually The app has a limit of 10,000 recordings and recordings will need to be transferred or deleted to activate recordings once that limit has been reached. 2.7 Viewing Spectrograms of Recordings Tap a recording from the Recordings list or from GPS view to view the spectrogram of the recording, leave a voice or text...
  • Page 19 Press the up or down buttons to go to the next or previous recording in the recording list. The order of the recordings will match the sorting chosen in the list. Colored vertical bars at the beginning of each recording show the corresponding recording session and match the color shown in the recording list as well as the path in GPS view.
  • Page 20 2.8 GPS View In GPS VIEW, you can see the locations of recordings and species ID and the track of your recording session on a map. Each recording session is shown with a different path color. NOISE files are not shown in GPS view. A KML file is generated and stored with the session recordings in the session folder.
  • Page 21 2.9 Advanced Settings Screen The Advanced Setting is accessible from the main menu. It can only be opened if an Echo Meter Touch 1 or Echo Meter Touch 2 Pro is connected to your Android device. Default settings are used when the app is used with an Echo Meter Touch (non-Pro).
  • Page 22 Real-Time Auto ID If ON, Auto-ID will run immediately after concluding a recording and the Auto-ID pop-up will be displayed. Default: ON Real-Time Auto ID Sensitivity Adjusts how conservative the ID results will be. On SENSITIVE, more bats will be identified even if the algorithm is less confident of the result.
  • Page 23 Default: MEDIUM Sample Rate (Echo Meter Touch 2 Pro only) The sample rate on the Echo Meter Touch 2 Pro can be set to 256k or 384k. 256k will record up to 128kHz which is sufficient for all North American and European bats. 384k will record up to 192kHz but will use proportionately more storage for recordings.
  • Page 24 The first three letters of the species and the first three letters of the genus for recordings that have been identified, No_ID if Echo Meter Touch was unable to identify the recording or NOISE if the no bats are detected in the recording.
  • Page 25 Displays Echo Meter Touch and the App version number. Timestamp The date and time when the recording started. GPS Coordinates The location of the Echo Meter Touch when the recording started. Voice and Text Notes Any voice or text notes that were added by a user.
  • Page 26 Press and hold the recording attachment in the email or text message. Select the Echo Meter Touch app. The recording is imported into the app. All imported files must have been recorded using Echo Meter Touch app (as opposed to another bat recorder) and will be stored in a session folder called Imported Files.
  • Page 27 Preparing files Ready to download Using a USB cable on a Window PC Recordings can also be transferred to your computer using a USB cable (the charging cable that comes with the Android device). Plug the Android device into the computer using the charging cable.
  • Page 28 EMT device, you must first unzip them. On the Android device, launch the Echo Meter Touch app. This will automatically import all of the session folders and recordings into the app on your device and they can then be found in the recordings list.
  • Page 29 EMT device, you must first unzip them. On the Android device, launch the Echo Meter Touch app. This will automatically import all of the session folders and recordings into the app on your device and they can then be found in the recordings list.
  • Page 30 4.2 Audio EMT 2 EMT 2 Pro Recording Format: 16-bit WAV 16-bit WAV Gain: Fixed 3 settings Sample Rate: 256kHz 256kHz/384kHz Directionality: Slightly Slightly Directional Directional Maximum Recording Frequency: Half of the sample rate (up to 128 kHz for 256 kHz sample rate and up to 192 kHz for 384 kHz sample rate) Signal to Noise Ratio: This is a measure of quality within the recording bandwidth.
  • Page 31 Directionality: The waveguide on the EMT 2 provides some directionality to reduce extraneous noise and echoes. Echo Meter Touch 2 and Pro Directionality (Horizontal) 15° 15° 30° 30° 45° 45° 60° 60° 75° 75° 20 kHz 40 kHz 90° 90° 60 kHz 80 kHz 105° 105° 100 kHz 120° 120° 135° 135° 150°...
  • Page 32 Echo Meter Touch 2 and Pro Directionality (Vertical) 15° 15° 30° 30° 45° 45° 60° 60° 75° 75° 20 kHz 40 kHz 90° 90° 60 kHz 80 kHz 105° 105° 100 kHz 120° 120° 135° 135° 150° 150° 165° 165° 180° 4.3 Storage Requirements How many recordings you can store on your Android device depends on the capacity of your device and how much memory is available.
  • Page 33 4.4 Android Device Compatibility Echo Meter Touch 2 is designed to work with most and Android tablets and phones running Android version 5.0 or later. For a full list of compatible devices visit www.wildlifeacoustics.com/devices. The site will be constantly updated with tablets and phones know to be compatible and incompatible.

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