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Cicada is an open source audio annotation tool that lets you annotate audio files in .wav format and also enables you to look into each audio spectrogram while annotating

Cicada - simple GUI for audio annotation

Cicada is an audio annotation tool which can be used to annotate .wav files and save the annotation in csv file format (currently). Eventually it will be made available as JSON, XML format as well (please watch for updates)

Setting up environment:

Requires Python 3.5.6.

Following are requiremnts needed to run the tool.
$ pip install -r requirements.txt

Things to know before starting tool :

I have enabled the window resizing option

You can make changes for the following parameters in the config_app.json file

{
	"ButtonsParams":
		{
			"Height": 2, 
			"Width":  20
		},
	"AnnotationsFile":
		{
			"ExistingAnnotationFile": "ExistingFile.csv",
			"NewAnnotationFile": "NewAnnotationFile.csv"
		}
}

To start annotating:

Run this script:

After making sure you have python3.5.6 installed and all the required packages you are good to go.

$ python cicada_app_v1_1.py

Note: I have given pythonand not python3 for running the script because I assume you have virtual environment which has python3 installed