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For more information on these features, see the help pages.

Recording

Audacity can record live audio through a microphone or mixer, or digitize recordings from other media. With some sound cards, and on any recent version of Windows, Audacity can also capture streaming audio.

• Device Toolbar manages multiple recording and playback devices.
• Level meters can monitor volume levels before, during and after recording. Clipping can be displayed in the waveform or in a label track.
• Record from microphone, line input, USB/Firewire devices and others.
• Record computer playback on Windows Vista and later by choosing "Windows WASAPI" host in Device Toolbar then a "loopback" input.
• Timer Record and Sound Activated Recording features.
• Dub over existing tracks to create multi-track recordings.
• Record at very low latencies on supported devices on Linux by using Audacity with JACK.
• Record at sample rates up to 192,000 Hz (subject to appropriate hardware and host selection). Up to 384,000 Hz is supported for appropriate high-resolution devices on Windows (using WASAPI), Mac OS X, and Linux.
• Record at 24-bit depth on Windows (using Windows WASAPI host), Mac OS X or Linux (using ALSA or JACK host).
• Record multiple channels at once (subject to appropriate hardware).

Kakovost zvoka

• Snemajte in urejajte 16-bitne, 24-bitne in 32-bitne (plavajoča vejica) vzorce (slednji ohranijo vzorce v preseženem polnem merilu).
• Mere vzorčenja in formati se pretvarjajo z uporabo visokokvalitetnega ponovnega vzorčenja in stresanja.
• Mešajte sledi z različnimi merami vzorčenja ali zapisi in Audacity jih pretvori samodejno v realnem času.

Editing

• Easy editing with Cut, Copy, Paste and Delete.
• Find the spot to edit easily with scrubbing and seeking or Timeline Quick-Play.
• Unlimited sequential Undo (and Redo) in the session to go back any number of steps.
• Edit and mix large numbers of tracks.
• Multiple clips are allowed per track.
• Label tracks with selectable Sync-Lock Tracks feature for keeping tracks and labels synchronized.
• Draw Tool to alter individual sample points.
• Envelope Tool to fade the volume up or down smoothly.
• Automatic Crash Recovery in the event of abnormal program termination.

Effects

• Real-time preview of LADSPA, LV2, VST and Audio Unit (OS X) effects.
• Plug-in Manager handles plug-in installation and addition/removal of effects and generators from the menus.
• Change the pitch without altering the tempo (or vice-versa).
• Remove static, hiss, hum or other constant background noises.
• Alter frequencies with Equalization, Bass and Treble, High/Low Pass and Notch Filter effects.
• Filter a frequency selection made in Spectral Selection views or Spectral Selection Toolbar using spectral edit effects.
• Adjust volume with Compressor, Amplify, Normalize, Fade In/Fade Out, Crossfade Clips, Crossfade Tracks and Adjustable Fade effects.
• Reduce or Isolate Vocals given suitable stereo tracks (vocal reduction produces a stereo result).
• Create voice-overs for podcasts or DJ sets using Auto Duck effect.
• Other built-in effects include:
  • Echo
  • Limiter
  • Paulstretch (extreme stretch)
  • Phaser
  • Reverb
  • Reverse
  • Truncate Silence
  • Wahwah
• Run "Chains" of effects on a project or multiple files in Batch Processing mode.

Plug-ins

• Support for LADSPA, LV2, Nyquist, VST and Audio Unit effect plug-ins.
• Effects written in the Nyquist programming language can be easily modified in a text editor - or you can even write your own plug-in.
• Experimental modules that extend the functionality of Audacity.

Analysis

• Spectrogram view modes for visualizing and selecting frequencies.
• "Plot Spectrum" window for detailed frequency analysis.
• "Sample Data Export" for exporting a file containing amplitude values for each sample in the selection.
• Contrast Analysis for analyzing average RMS volume differences between foreground speech and background music.
• Support for adding VAMP analysis plug-ins.

Brezplačen in večplatformski

• Licenciran pod splošnim javnim dovoljenjem GNU (GPL).
• Teče v okoljih Mac OS X, Windows in GNU/Linux.