audacity

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Audacity(R): free, open source, cross-platform audio software for multi-track recording and editing: https://www.audacityteam.org/ .

User support is provided on Audacity Forum: https://forum.audacityteam.org/ .

We welcome feedback on Audacity, suggestions for new or improved features, and bug reports. Please visit https://forum.audacityteam.org/viewforum.php?f=25 .

Audacity is copyright (c) 1999-2018 by Audacity Team. This copyright notice applies to all documents in the Audacity source code archive, except as otherwise noted (mostly in the lib-src subdirectories). "Audacity" is a registered trademark of Dominic Mazzoni.

The Audacity documentation is licensed under the Creative Commons Attribution 3.0 license: https://creativecommons.org/licenses/by/3.0/legalcode .

Compilation instructions for Audacity are provided in the source code:

• Windows: win\compile.txt
• macOS: mac/Build.txt
• GNU/Linux: INSTALL .

You can ask for help with compilation problems at: https://forum.audacityteam.org/viewforum.php?f=19 .

If you want to suggest some simple text change in our code, please submit a pull request on https://github.com/audacity/audacity/pulls . It's usually best to discuss functional code changes with us first on audacity-devel: https://lists.sourceforge.net/lists/listinfo/audacity-devel .

Version 2.2.2

Contents of this README:

1. Licensing
2. Changes since version 2.2.1
3. Known Issues at Release
4. Source Code, Libraries and Additional Copyright Information

1. Licensing

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. The program source code is also freely available as per Section 4 of this README.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program (in a file called LICENSE.txt); if not, go to https://www.gnu.org/licenses/old-licenses/gpl-2.0.html or write to

Free Software Foundation, Inc. 59 Temple Place - Suite 330 Boston, MA 02111-1307 USA

2. Changes since version 2.2.1:

Improvements

* Dropout detection
  Dropout detection is controlled from a setting in Recording Preferences 
  called "Detect dropouts".
  When this setting is "on" (default setting) Audacity will detect dropouts 
  (brief gaps in the recording) and will insert zeroes into the recording 
  to keep the other good parts synchronized. These silent spans will make 
  the dropouts more obvious, but keep the duration of the recording correct.
  When recording stops, a Warning message box alerts the user and a label track, 
  called "Dropouts", is added showing the lost parts, labeled with consecutive numbers.
* Improved horizontal zooming
  For this release we have improved the way zooming using your mouse wheel 
  works and provided a new Zoom Toggle function. 
* Improved vertical zooming
  We have added a context menu to the vertical scale to control vertical zooming
  Previous vertical zooming methods (left-click in the vertical ruler, left-drag
  in the vertical ruler) remain available by selecting "Advanced Vertical Zooming"
  in Track Behaviors Preferences.
* "Extra" menu
  The "Ext-Bar" and "Ext-Command" menus have been consolidated into the "Extra" menu.
* Theme tweaks
  The appearance and/or contrast of a few icons has been improved.
* Easier access to changing key bindings for shortcuts
  For menu commands that are enabled (not grayed-out) if you hold the Shift key 
  and click on the sub-menu item, instead of executing the command the Keyboard 
  Preferences pop open at the chosen command. You can then change that (or any 
  other) shortcut binding. 
* Language selection in Preferences
  Interface Preferences has been upgraded so when selecting languages the proper
  spelling of these languages is shown with accented and special characters. 

Bug Fixes

• Multiple use of "Save As" to the existing open project can result in data corruption/loss
• Crash undoing during record, using Discard button of History window
• Exporting audio in compressed formats to device with insufficient space produces inconsistent/truncated results
• In Export Multiple, Cancel does not remove the file that is in progress when Cancel is chosen
• Unicode page encodings fixed ( ͡° ͜ʖ ͡°)
• Crash using SBSMS pitch change at low sample rate
• (Mac) Equalization: "Telephone" curve displays a flat line, no sound on Preview
• Toolbars: open undocked if previously not shown, unless Reset Toolbars first
• Analysis effects that create labels should give focus to label track
• Control value may be out of range when using FloatingPointValidator
• Analysis effects produce false indication that a label is open for editing
• Import Uncompressed File Dialog Incorrect Reference to Menu Item
• Wave Color not grayed out in TCP dropdown menu when in Spectrogram view
• Hover indication on note track channel toggle appears on all tracks (when they rerender)
• Installer has old logo for 2.2.1 and 2.2.0
• Un-muting with a single track unnecessarily activates the Solo button
• Applying chain to file should zoom-to-fit

See also: https://wiki.audacityteam.org/wiki/Release_Notes_2.2.2 and: https://wiki.audacityteam.org/wiki/New_features_in_Audacity_2.2.2

3. Known Issues in 2.2.2:

For known issues at release of 2.2.2 please see: https://wiki.audacityteam.org/wiki/Release_Notes_2.2.2/Issues

Please also check: https://wiki.audacityteam.org/wiki/Known_Issues for details of any issues that have been identified after release of this version.

4. Source Code, Libraries and Additional Copyright Information

Source code to this program is always available; for more information visit our web site at:

https://www.audacityteam.org/download/source

Audacity is built upon other free libraries; some of these libraries may have come with Audacity in the lib-src directory. Others you are expected to install first if you want Audacity to have certain capabilities. Most of these libraries are not distributed under the terms of the GPL, but rather some other free, GPL-compatible license. Specifically:

expat: BSD-like license. Provides XML parsing. Included with Audacity.

FFmpeg: GPL or LGPL (according to how you obtain/configure it) Provides decoding/encoding of additional formats. Optional separate download.

libid3tag: GPL Reads/writes ID3 tags in MP3 files. Optional separate download as part of libmad.

libflac: Xiph.Org BSD-like licence (the parts we use) Decodes and Encodes Free Lossless Audio Codec files. Optional separate download.

libmad: GPL Decodes MP3 files. Optional separate download.

libnyquist: BSD-like license. Functional language for manipulating audio; available within Audacity for effects processing.

libogg: BSD-like license. Optional separate download, along with libvorbis.

libsndfile: LGPL Reads and writes uncompressed PCM audio files. Included with Audacity.

libsoxr: LGPL The SoX Resampler library performs one-dimensional sample-rate conversion.

libvamp: new-style BSD Plug-in interface and support library for audio analysis plug-ins. Included with Audacity.

libvorbis: BSD-like license. Decodes and encodes Ogg Vorbis files. Optional separate download.

lv2: a merging of the lilv (ISC license), lv2 (LGPL), msinttypes, serd (ISC), sord, sratom, and suil libraries to support LV2 plug-ins.

portsmf: BSD-like license. library for reading and writing midi files. Included with Audacity

sbsms: GPL v2 Pitch and tempo changing library. Included in Audacity

SoundTouch: LGPL Changes tempo without changing pitch and vice versa. Included in audacity

Twolame: LGPL Encodes MPEG I layer 2 audio (used in DVDs and Radio). Optional separate download.

wxWidgets: wxWindows license (based on LGPL) Cross-platform GUI library - must be downloaded and compiled separately.

For more information, see the documentation inside each library's source code directory.

Additional copyright information:

Nyquist

Copyright (c) 2000-2002, by Roger B. Dannenberg All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

Redistributions of source code must retain the copyright notice, the list of conditions, and the disclaimer, all three of which appear below under "COPYRIGHT AND LICENSE INFORMATION FOR XLISP."

Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

Redistributions in binary form must reproduce the copyright notice, the list of conditions, and the disclaimer, all three of which appear below under "COPYRIGHT AND LICENSE INFORMATION FOR XLISP," in the documentation and/or other materials provided with the distribution.

Neither the name of Roger B. Dannenberg, Carnegie Mellon University, nor the names of any contributors may be used to endorse or promote products derived from this software without specific prior written permission.

COPYRIGHT AND LICENSE INFORMATION FOR XLISP (part of Nyquist):

Copyright (c) 1984-2002, by David Michael Betz All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

Neither the name of David Michael Betz nor the names of any contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.