网络安全夺旗赛MISC手必备软件

Audacity(R): A Free, Cross-Platform Digital Audio Editor WWW: http://audacity.sourceforge.net/ We welcome feedback on Audacity, suggestions for new or improved features, bug reports and patches at: feedback@audacityteam.org . Personal support with Audacity is not provided by e-mail, but on our Forum: http://audacityteam.org/forum/ . Audacity is copyright (c) 1999-2015 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). The documentation for Audacity is licensed under the Creative Commons Attribution 3.0 license: http://creativecommons.org/licenses/by/3.0/legalcode . "Audacity" is a registered trademark of Dominic Mazzoni. Version 2.1.0 Contents of this README: 1. Licensing 2. Changes since version 2.0.6 3. Known Issues at Release 4. Source Code, Libraries and Additional Copyright Information 5. Compilation Instructions 6. Previous Changes going back to version 1.1.0. -------------------------------------------------------------------------------- 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 http://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 2.0.6: Changes and Improvements: * Effects: * LADSPA, VST and Audio Unit (OS X) effects now support real-time preview, save/load of user presets and saving effect settings across sessions. Note: Real-time preview does not yet support latency compensation. * VST effects now support import/export of FXB preset banks. * Shell VST effects that host multiple plugins are now supported. * All Effect Menu items (built-in or plugin) can now be used in a Chain. * Items in the Effect, Generate or Analyze Menus can be sorted or grouped by name, publisher or class of effect. * Noise Removal is improved and renamed to "Noise Reduction". * Change Speed has new time controls for current and new length. You can now enter the speed change as a multiplier e.g. "2" is twice as fast. * New "Crossfade Tracks" effect can be used for crossfading two tracks. This replaces Cross Fade In and Cross Fade Out. * Nyquist Prompt and most shipped Nyquist effects now have Preview button. * Interface: * Redesigned Meter Toolbars: The default shows separate Record and Playback Meters, half-height so they can be wider while docked, in gradient style. * A frequency selection can now be made (and spectral edit effects applied to those frequencies) when in a spectrogram view. You can also create or adjust frequency selections in a new "Spectral Selection Toolbar" (available at View > Toolbars). * Transcription Toolbar (Play-at-speed) can now loop play and cut-preview. * Timer Record now saves recordings automatically into an existing project. * New Armenian translation. * Operating system and sound device support: * (Windows) Audacity 2.1.0 requires Windows XP SP3 (32-bit) or XP SP2 (64-bit), Vista, Windows 7, Windows 8 or 8.1. * (Windows) Audacity is now compiled using Visual Studio 2013. * (Windows) Recording with WASAPI host now includes experimental support for physical inputs (up to 24-bit depth) as well as loopback recording. * (OS X) 10.10 (Yosemite) is now supported including Apple Audio Units. * Please report any issues with WASAPI recording/playback or Yosemite to http://audacity.sourceforge.net/contact/#feedback . * (Linux Ubuntu) Under Unity, keyboard shortcuts are not visible in the Audacity menus. Keyboard shortcuts are visible if you install the classic GNOME Flashback interface or under Unity if you open Audacity with the UBUNTU_MENUPROXY=0 environment variable. Audacity compiled from source will ship with src/audacity.desktop.in set to UBUNTU_MENUPROXY=0 but it will remain up to distributions to use this desktop file. Bug fixes: * Interface: * Typing "j" or "k" in a label track activated the "move cursor" shortcut. * Spectrogram log (f) view displayed incorrectly until vertically zoomed. * Fixed crash after zooming out on vertical scale beyond +/-1.0. * Selections made with Selection Toolbar were not restored after Undo. * Undo could fail silently if a selection included/touched a clip boundary. * Imports and Exports * If there were invalid FFmpeg libs in system PATH this prevented Audacity recognising the installed FFmpeg or the FFmpeg specified in audacity.cfg. * Mac OS X: * Fix uninitialized buffer - this should correct playback buzz or crackle where the upper of multiple tracks started with or contained white space. * Device names were corrupted when using system language other than English. * Fixed crashes using (external program). * Waves v9 Audio Units should now work correctly. * GNU/Linux: * Fix "Audacity already running" error when using the command-line or context menu to open multiple or further files. * Fix segfault exporting an FFmpeg format to an unwritable folder. * Fix silent failure exporting FFmpeg, MP2 or OGG to an unwritable folder. * Fix ENTER activated an effect when OK button was greyed out. * Addendum: * The previous Audacity 2.0.6 version fixed an issue that projects did not reopen correctly if they contained tracks having 2^31 samples or greater of audio (just over 13.5 hours at 44100 Hz). ------------------------------------------------------------------------------- 3. Known Issues in 2.1.0: For known issues at release of 2.1.0 please see: http://wiki.audacityteam.org/wiki/Release_Notes_2.1.0#known Please also check: http://wiki.audacityteam.org/index.php?title=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: http://audacity.sourceforge.net/download/ 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