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Audacity is a free, easy-to-use, multi-track audio editor and recorder for Windows, Mac OS X, GNU/Linux and other operating systems. The interface is translated into many languages. Audacity is free software, developed by a group of volunteers and distributed under the GNU General Public License (GPL).
You can use Audacity to:
• Record live audio.
• Record computer playback on any Windows Vista or later machine.
• Convert tapes and records into digital recordings or CDs.
• Edit WAV, AIFF, FLAC, MP2, MP3 or Ogg Vorbis sound files.
• AC3, M4A/M4R (AAC), WMA and other formats supported using optional libraries.
• Cut, copy, splice or mix sounds together.
• Numerous effects including change the speed or pitch of a recording.
• And more! See the complete list of features.
Features
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).
Sound Quality
• Supports 16-bit, 24-bit and 32-bit (floating point) samples (the latter preserves samples in excess of full scale).
• Sample rates and formats are converted using high-quality resampling and dithering.
• Tracks with different sample rates or formats are converted automatically in real time.
Editing
• Easy editing with Cut, Copy, Paste and Delete.
• Unlimited sequential Undo (and Redo) 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.
Accessibility
• Tracks and selections can be fully manipulated using the keyboard.
• Large range of keyboard shortcuts.
• Excellent support for JAWS, NVDA and other screen readers on Windows, and for VoiceOver on Mac.
Effects
• Real-time preview of LADSPA, VST and Audio Unit (OS X) effects.
• 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 Spectrogram views or Spectral Selection Toolbar using spectral edit effects.
• Adjust volume with Compressor, Amplify, Normalize, Fade In/Fade Out, Crossfade, and Adjustable Fade effects.
• Remove Vocals from suitable stereo tracks.
• Create voice-overs for podcasts or DJ sets using Auto Duck effect.
• Other built-in effects include:
* Echo
* 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.
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.
Homepage – http://web.audacityteam.org/
Download:
Download Audacity Windows | 19,30 MB | version: 2.2.2 |
Download Audacity Windows Portable | 11,42 MB | version: 2.2.2 |
Download Audacity Mac OS X | 32,65 MB | version: 2.2.2 |
Download Audacity Linux source | 7,83 MB | version: 2.2.2 |
Download Audacity Mac OS X (screen reader accessible) | 38.61 MB | version: 2.1.1 |