Colaboratory is also known as Colab. It is a Google Research product that allows one to write code in a web browser. Some, but not all, of these notebooks can be executed in Colab. Colab is free with limitations in compute and memory. Upgrading to Colab Pro/Pro+ allows for more compute and memory for a fee.

To use Colab:

  1. Setup a gmail account if you don't already have one.
  2. Launch the notebook by clicking on one of the links below:
Notebook Description
PacificSound2kHz.ipynb Low-frequency data access and spectrogram calibration
PacificSound16kHz.ipynb Low-mid-frequency data access and spectrogram calibration
PacificSound256kHz.ipynb Raw recording data access and spectrogram calibration
PacificSoundClassifyBlueA.ipynb Blue whale A call classification using a trained neural network model
PacificSoundBlueBCallIndex.ipynb Signal processing method for computing Blue whale B call call index
PacificSoundShippingNoiseAnalysis.ipynb Signal processing methods for studying temporal variations in shipping noise
PacificSoundDetectHumpbackSong.ipynb Humpback song detection using a trained neural network model

Important - there is a 24-hour runtime limit for Colab. This can be an issue for some applications such as training deep-learning models for sound detection and/or classification.

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