Audacity V3.6.1
Submitted by dts5901 on Wednesday, February 28, 2018 - 17:14.
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Audacity is free, open source, cross-platform audio software for multi-track recording and editing.
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 or Windows DirectSound host), Mac OS X or Linux (using ALSA or JACK host).
- Record multiple channels at once (subject to appropriate hardware).
Import and Export
- Import sound files, edit them, and combine them with other files or new recordings. Export your recordings in many different file formats, including multiple files at once.
- Import and Export WAV, AIFF, AU, FLAC and Ogg Vorbis files.
- Fast “On-Demand” import of WAV or AIFF files (letting you start work with the files almost immediately) if read directly from source.
- Import and export all formats supported by libsndfile such as GSM 6.10, 32-bit and 64-bit float WAV, RF64, and U/A-Law.
- Import MPEG audio (including MP2 and MP3 files) using libmad.
- Import raw (headerless) audio files using the “Import Raw” command.
- Create WAV or AIFF files suitable for burning to audio CD.
- Export MP3 files with the optional LAME encoder library.
- Import and export AC3, M4A/M4R (AAC) and WMA with the optional FFmpeg library (this also supports import of audio from video files).
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.
- 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.
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 in legacy Audacity 2.1.1.
Effects
- Real-time preview of LADSPA, LV2, VST and Audio Unit (macOS) effects.
- Plug-in Manager handles plug-in installation and addition/removal of effects and generators from the menus.
- Generate tones, silence, noise, instruments or rhythm track.
- Change the pitch without altering the tempo.
- Change the tempo without altering the pitch.
- Noise Reduction to remove static, hiss, hum or other constant background noises.
- Alter frequencies with Equalization, Bass and Treble, High Pass, Low Pass and Notch Filter effects.
- Filter a frequency selection created in Spectrogram view or Spectral Selection Toolbar using spectral edit effects.
- Adjust volume with Compressor, Amplify, Normalize, Fade In/Out, Studio 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:
- Distortion
- 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 mode 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 and Sample Data Import for import of numeric values from a plain ASCII text file
- Contrast Analysis for analyzing average RMS volume differences between foreground speech and background music.
- Support for adding VAMP analysis plug-ins.
- Free and Cross-Platform
- Licensed under the GNU General Public License (GPL).
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