Free, open source, cross-platform audio software
Audacity is an easy-to-use, multi-track audio editor and recorder for Windows, Mac OS X, GNU/Linux and other operating systems.
Developed by a group of volunteers as open source.

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Bring it to the computer
Grab yourself a nice audio interface. Plug in a microphone or a 
keyboard. Add a track. Press record. Got it.

Use what you've got
Import audio or MIDI from your hard drive or the Freesound database.

The work to be done
Cut, move, stretch, copy, paste, delete, align, trim, crossfade, rename, 
snapshot, zoom, transpose, quantize, swing, drag, drop.

The tools to do it
All with unlimited undo/redo. All in the same window.

All the buzzwords
Mute, solo, fader, automate, EQ, dynamics, insert, send, pre-fader, post-fader, 
sync, monitor, isolate.

Less of the pain
Floating point fidelity, the most flexible mixer architecture in the industry, 
hundreds of plugins, and external control surfaces.
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Install LMMS on Windows
Click one of the buttons below (either 32bit or 64bit) to download 
LMMS for Windows,Linux, macOS
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Mixxx is a DJ mixing tool Download Now (Mixxx 2.2.3 Stable)
Check out the release announcement for a list of new features.

Mixxx is a DJ mixing tool. Its a great program for live broadcasting, dances, parties etc. You can save and record music you create and set it up to auto DJ. It can be controlled with MIDI and HID controllers as well as time-code vinyl records. Its available for Windows, MacOS, and Ubuntu.

Although Mixxx 2.2.3 contains many important updates and bugfixes, it's possible some users may experience issues. If you do, you can still get our previous stable version, Mixxx 2.1.8.
Mixxx is available for Windows, macOS, and Linux.
You don't need to pay for Mixxx because you can get it here for free. There is no official paid or "pro" version of Mixxx. The version available here is the full version. We happily provide Mixxx for free and donations are appreciated but not required.

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Spek – Acoustic Spectrum Analyser
is available for Windows, macOS, and Linux.
Spek (IPA: /spÉ›k/, ‘bacon’ in Dutch) helps to analyse your audio files by showing 
their spectrogram. Spek is free software available for Unix, Windows and Mac OS X
Features
Supports all popular lossy and lossless audio file formats thanks to the FFmpeg libraries.
Ultra-fast signal processing, uses multiple threads to further speed up the analysis.
Shows the codec name and the audio signal parameters.
Allows to save the spectrogram as an image file.
Drag-and-drop support; associates with common audio file formats.
Auto-fitting time, frequency and spectral density rulers.
Adjustable spectral density range.
Translated into 19 languages.
Screenshots
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VirtualDJ 2020

https://download.cnet.com/VirtualDJ-2020/3000-18502_4-10212112.html


https://download.cnet.com/VirtualDJ-2020/3000-18502_4-10212112.html

Free Audio Recorder

https://download.cnet.com/Free-Audio-Recorder/3000-2170_4-77992950.html
https://download.cnet.com/Free-Audio-Recorder/3000-2170_4-77992950.html