DC Dolphin Communicator 2020

Dolphin vocalizations can only be understood with direct interactions using underwater whistles. This app is for that.

Now open-sourced:
https://gitlab.com/leafyseadragon/android-dolphin-comm-app
https://gitlab.com/leafyseadragon/android-acoustic-lib

Main Capabilities:
Whistle recognition & emission,
100 Hz to 11,000 Hz frequency range,
40 FFTs per second,
1024 voltage samples,
does not require the Internet,
database to be shared,
built-in documentation.

Privacy Policy: The data in this app is private and owned by the owner of the device. The publisher does not have access to the data.

This app is experimental and considered to be work-in-progress. It is expected to remain work-in-progress for many years as new features are required while users design new experiments, new discoveries are made, and as new technical capabilities become available from device manufacturers. Advantages: free, inexpensive off-the-shelf devices, designed to be used in water near dolphins at sea, with a customizable recognition algorithm, and expandable features.

Using this app, you may emit one or more whistles and listen to the response by dolphins (the app will show you the sound and try to recognize them for you), then you may reply with your own whistles. Dolphins may also command the device.

User Guide:

The main screen works like a chat or text messaging application, and it emits and recognizes whistles. When the app recognizes a whistle that it already has in its lexicon, it surrounds its name or number by ((( ))), such as ((( hello ))) or ((( 147 ))) and ((( x123 ))). When the app does not recognize a sound as a known whistle, it gives it a number and displays that number without the ((( ))), such as x123. To emit one or more whistles, you type their names or numbers in the edit text box and select the Emit button. After an emission you may repeat it by selecting the Repeat button.

Sample built-in whistles are hello, hello-world, hi, bye, yes, no, m, caret, u, v, w, and wv. You can make your own whistles with a built-in graphical editor.

A spectrogram behind the chat text lets you see the energy of the surrounding sounds in real time.

This version has a database which lets you save sessions data.

Also, using two devices with this app, two or more people can play a game in air where someone is the dolphin and the other is the researcher. Only whistles are allowed for sound. You can use props to identify by whistles and requests actions by whistles. Try to communicate with another person just by using whistles and this will give you an idea of the difficulties in communicating with dolphins.

Main Features:
- Emit whistles selected by the user
- Acquire whistles from the surrounding sounds and keep them in a lexicon
- Recognize whistles; when a whistle is recognized it is identified to the user
- Shows the energy and frequencies of surrounding sounds in a real-time spectrogram
- Shows some of the events of the workings of the app
- Pause and restart the spectrogram in order to observe interesting sound energy patterns
- Perform a self-test where the app can test itself by attempting to recognize emitted whistles
- Hide the chat text in order to better see the spectrogram
- Edit whistles with a graphical editor
- Commands entered by the human user
- Commands in the form of whistles, to be used by dolphins or a second device
- Database to save, export, analyse, and share whistles and other data.

Menu Options:
- Show all Whistles in the lexicon, cetacean-made and man-made whistles
- Show the main Settings
- Show all available Commands
- Show the Database status
- Show a User Guide
- Show an About text

Documentation for the app (much is already in the app):
https://gitlab.com/serge_masse/android-dolphin-comm-doc

Could be used with this underwater tablet (no affiliation):
http://allecoproducts.fi/alltab/

App © 2020 Serge Masse - All rights reserved.
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What's New

Fixed a few big bugs in database reading and writing.
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Additional Information

Updated
August 9, 2020
Size
2.7M
Installs
5+
Current Version
Version 12 Beta - Build Date 2020-8-9
Requires Android
4.4 and up
Content Rating
Everyone
Permissions
Offered By
Serge Masse
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