Audacity is the finest free sound editor around. Record, edit and play audio files with a suite of pro-level features. Just as good as many premium tools
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Audacity is an excellent audio suite that can perform a heap of impressive functions to rival paid-for alternatives.
You can record audio from both a microphone and computer playback, with sample rates as high as 192,000Hz. Level meters monitor the volume levels during recording useful for spotting clipping. There's also support for recording at 24-bit depth.
You can import and export dozens of different file formats, then easily adjust your files with multi-track editing, smooth fading, labelling, syncing and more. Audacity also lets you remove annoying hissing, humming and other background noises - perfect if you can't guarantee the quality of your recording environment
Audacity can alter frequencies with its Equalization, Bass and Treble, High/Low Pass and Notch Filter effects, and the volume can be adjusted using to the compressor, amplify, formalize, fade in/out and adjustable fade effects. There's also built-in crash recovery and support for plugins.
The latest version of Audacity includes improved noise reduction, several interface improvements and more detailed spectrogram settings.