About

DeDopFX is an experimental (=fun) tool which converts satellite altimeter measurement data into sound. Currently it can transform the L1B data from the SRAL sensor mounted on the ESA Sentinel-3 satellite into audio samples.

DeDopFX can play the L1B NetCDF output files (*.nc) from the DeDop Processor or the SRAL sample files from the Sentinel-3A Altimetry Test Data Set.

Here is a screenshot (Windows):

Quick start

Make sure, you have sound enabled.

1. Start DeDopFX
2. In main menu select File / Load Source File..., then select a L1B (.nc) file from your file system
3. Press Play
4. In tab Source Mapping,
   • adjust the Maximum source value until you hear something, around 3000 is a good starting point
   • adjust other settings, they all influence the sound in terms of pitch, timbre, and harmonics
5. Select File / Save from main menu, if you believe, your settings should be saved

Missing Features

• Audio output level indicator that also shows if we clip to lower/upper 16bit limits
• High CPU load indicator that warns if computer is too slow to stay above the sample rate of 44100 samples/sec
• More visualisations: show all input data as image, show currently played record within it

License

This software is distributed under the terms and conditions of the MIT License (MIT).

For Developers

Creating DeDop FX installers

Compile the Java code first. Expected output directories are

• out/production for production Java code in src
• out/production/dedopfx/resources for resources in src/dedopfx/resources
• out/test for test Java code test

Windows

Refer to javapackager documentation.

1. Install Inno Setup Compiler.
2. Install WiX tools and add it (C:\Program Files (x86)\WiX Toolset v3.10\bin) to your PATH.
3. Open command prompt (cmd.exe), then

       > cd dedop-fx
       > mkwin
   

4. To create signed installers, set required environment variables
   • CRC_FILE to a certificate file *.p12;
   • CSC_KEY_PASSWORD to the password for the certificate and run once more.

Mac OS X

Just run

    > cd dedop-fx
    > bash ./mkmac.sh

Linux

TODO