Audio Terminology And Definitions Dictionary

 

Q   The sharpness of a peak.

 

Quadraphonic  Four channel audio. Various rival quadraphonic audio formats including QS, SQ and CD4 were proposed in the Seventies. Many broadcast companies experimented with four channel FM transmission, the BBC, for example, favoring a format known as Matrix H. No quadraphonic format survived as a viable commercial entity into the digital age. 

 

QuickTime    QuickTime is a file format for storing and playing back movies with sound. Though developed and supported primarily by Apple, this flexible format isn't limited to Macintosh operating systems. It's also commonly used in Windows systems and other types of computing platforms. In Windows, QuickTime files usually appear with the .mov filename extension.