Guitarix - Guitarix is a simple Linux Rock Guitar Amplifier for https://alternativeto.
Audacity - Audacity is a free and open-source audio production software suite that includes a surprising array of editing tools and recording systems.
Ampire - State Space Modeled guitar amp/cab/stompbox simulator.
Oceanaudio - Ocenaudio is a cross-platform, easy to use, fast and functional audio editor.
TH-U - World class guitar amps and effects for PC and Mac
GoldWave - GoldWave. Digital Audio Editing Software. Record • Restore • Convert • Analyze. Fully loaded to do everything from the simplest recording and editing to the most sophisticated audio processing, restoration, enhancements, analysis, and conversions.