1. To encode WAVE files to compressed format, click "Encode" button.

For example, press "Encode Format" button, followed by choosing the format you want to compress your WAVE files into, followed by setting the parameters for your compressed files, followed by selecting the output directory to store your files, then click "Ok" button. After doing these, the parameters you have set for your files have been stored. Click "Encode" button, select the file you want to convert, click "Ok" button and then the conversion will begin.

2. To decode your compressed files to WAVE files, click "Decode" button.

For example, press "Wav settings" button, followed by setting the parameters for your WAVE files, followed by selecting the output directory to store your files, then click "Ok" button. After doing these, the parameters you have set for your files have been stored. Click "Decode" button, select the file you want to convert, click "Ok" button and then the conversion will begin.

If you feel it's too complex, you may just click "Format From Like Sample" and select one audio file. Then the files will be converted into the files in the format as the selected file.