Summary: Audacity is a multi-track audio and sound editor. It can also record from various input devices, up to 24bit wavelength, using ALSA or JACK with latencies up to 384kHz. All common audio formats and encodings such as WAV, AIFF, AU, FLAC, OGG Vorbis, GSM, MP2, MP3, AC3, M4A/M4R (AAC) and WMA are supported. Audio layers allow cutting, editing, and applying or layering a wide range of effects. And Audacity is also cross-platform.