Sonic Studio Releases Amarra 4 High-resolution Music Playback Application. The waiting is over, the time is now, and the highly anticipated release of Amarra 4 is here! Sporting a new User Experience and the Great Sound that only Sonic Studio can provide. Amarra is a high resolution music player designed for the discriminating ears of audiophiles and professionals. Deep, analog, natural, and musical; these are words Amarra our customers use when describing their Amarra listening experiences. With Amarra, you'll have many "oh wow!" moments even with tracks you've listened to for years. That's because Amarra enables your music to sound the way it was intended to be heard: beautifully.