GoldWave is a professional digital audio editor. Use it to play, edit, mix, and analyze audio, or apply special effects, such as fade, equalizer, echo, reverse, time warp, noise reduction, silence reduction, pop/click filter. New files can be recorded from cassettes, albums, radio, or digitally copied from audio CDs. Real-time visuals are displayed during playback and recording. Supports MP3, M4A, WAV, WMA, OGG, and many more formats. Includes built-in tools, such as Batch Processing, CD Reader, File Merger, and Effect Chain Editor. Version 5.23 added new filter effect, keyboard configuration and navigation, marker preview, variable silence reduction, accessibility help, plus many other improvements and fixes.