GoldWave is a digital-audio editor for Windows. The program has real-time oscilloscopes, intelligent editing, and numerous effects (including echo, flange, distortion, mechanize, and reverse). An intuitive user interface makes GoldWave easy to learn and use. Version 4.0 adds an improved interface, time stretching, CD-audio extraction, and vertical zooming. Previous updates add automatic cue points, an improved Mark Silence feature under the Cue Points tool, and a new licensing system (for faster online licensing in the future).