ASD file is an Ableton Warp Analysis File. Ableton warp analysis file contains specific information about analyzed audio data such as e.g. warp marker positions, pitch, etc. Ableton Live is a loop-based software music sequencer and digital audio workstation for OS X and Windows.
This condition aggravates with cold exposure. Exposure to cold abnormally reduces blood circulation causing the skin to become pale, waxy-white or purple. The disorder is sometimes called white finger, wax finger or dead finger.. Raynaud's phenomenon has many different causes including workplace exposures.
To start with, the most common cause of purple nails would be diminished circulation. This is very common in females and is usually worse in cold weather, but not in your case it sounds like. The main thing is to make sure that, if you do have diminished circulation, it is not due to a serious problem like a connective tissue disorder.