func main() {
    //open file
	file, err := os.Open("inputFile.ext")
	defer file.Close()
	if err != nil {
		fmt.Println("error opening input file: ", err)
		return
	}

	// Create converter
	converter, err := NewConverter(file)
	defer converter.Close()
	if err != nil {
		fmt.Println("error creating converter: ", err)
		return
	}

	// Convert data
	inputAudioSizeInBytes, err := converter.ConvertToMp3()
	if err != nil {
		fmt.Println("error in converting: ", err)
		return
	}
	fmt.Println("Data converted, size of audio source:", inputAudioSizeInBytes)

    // Write into a new file
	err := os.WriteFile("outputFile.mp3", c.GetDataConverted(), 0644)
	if err != nil {
		return err
	}

	fmt.Println("Job is done!")
	return
}