The Motherboard portal informs that the application for recognizing music tracks Shazam eavesdrops Apple users. 

What does eavesdropping users of the application consist in the computer version? 

The application works in the background all the time and listens closely to users by the microphone, because it never shuts down completely.

Recordings collected by the application are not used in any way but doesn't it  violate of our privacy? 

The company explains that this an intentional action of the application to make it run faster. If the microphone was not on, it would cause the longer initialization and the audio buffering which would translate into the possibility of missing the song the user wants to identify at that particular moment. 

Although the company does not see any violating of users privacy, it prepared the special fix for the application which disenables it from listening closely in the background. The problem  of the microphone running in the background concerned devices with iOS and Android system.