What gives a quality audio file?

With the review Audimat (Les Siestes Electroniques)

What gives a quality audio file?
Ci-dessus, le replay de l'émission

Toulouse and Paris music festival, Les siestes électroniques, has recently started its own review: Audimat. Linking up with the themes covered in the magazine, we're bringing you a series of discussions between journalists, artists and thinkers.