sonify
sonify “squeezes” seismic or infrasound signals into audible frequencies and creates animated spectrograms to accompany the audio. Data are pulled from any of the FDSN data centers available through the Incorporated Research Institutions for Seismology (IRIS) Data Management Center (DMC) fedcatalog web service.
sonify won an Honorable Mention in the 2020 SciPy John Hunter Excellence in Plotting Contest (JHEPC).
Quickstart
Obtain
git clone https://github.com/liamtoney/sonify.git cd sonify
Create environment, install, and activate (install conda first, if necessary)
conda env create conda activate sonify
Run using the Python interpreter
python >>> from sonify import sonify
or via the command-line interface
sonify --help
Example
To make a movie of the seismic signal generated by a massive avalanche occurring in Alaska on 21 June 2019, sped up by a factor of 200:
from sonify import sonify
from obspy import UTCDateTime
sonify(
network='AV',
station='ILSW',
channel='BHZ',
starttime=UTCDateTime(2019, 6, 20, 23, 10),
endtime=UTCDateTime(2019, 6, 21, 0, 30),
freqmin=1,
freqmax=23,
speed_up_factor=200,
fps=1, # Use fps=60 to ~recreate the JHEPC entry (slow to save!)
spec_win_dur=8,
db_lim=(-180, -130),
)Or (equivalently), via the command-line interface:
sonify AV ILSW BHZ 2019-06-20T23:10 2019-06-21T00:30 --freqmin 1 --freqmax 23 --speed_up_factor 200 --fps 1 --spec_win_dur 8 --db_lim -180 -130The result is a 4K 1fps video file named AV_ILSW_BHZ_200x.mp4. A screenshot
of the movie is shown at the top of this README.
Documentation
Application programming interface (API) documentation for the module is available
here. For command-line
usage instructions, type sonify --help (the sonify conda environment must
be active).
Contributing
If you notice a bug with sonify (or if you'd like to request/propose a new
feature), please create an issue on GitHub (preferred) or email me at
[email protected]. You are also welcome to create a pull request.
Please don't allow imposter syndrome to obstruct you from
contributing your valuable ideas and skills to this project — I'm happy to help
you contribute in any way I can.