I want to know the answer to the following question:
To compare qualities, sound files are evaluated on a scale that ranges from 1 to what?
All the background I'm provided with is that "As an example, in a public listening test featuring two different MP3 encoders at about 128 kbit/s, one scored 3.66 on a 1–5 scale, while the other scored only 2.22.". Is that enough to answer the question?