Audacity: 自由而免费的声音编辑器和录音软件

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Audacity 1.3 新特性

测试版本

Audacity 1.3 公测版现已变成2.0版。

Audacity 1.3.14 的变更

Bug 修复:
界面:
  • 在长期的项目键入标签时发生过度延时。
  • 在某些格式时TimeText控件最后一位数字不能操作。
  • (Windows, OS X) 点击设备工具栏中的播放和录制快捷键没有响应。
  • (OS X, Linux) 播放或录制期间如果进行工具栏复位,程序会崩溃。
导入和导出:
  • 没有 FFmpeg 库或者一个导入规则 MP2 文件不能导入。
  • 如果 FFmpeg 不可以,只能用 FFmpeg 导入的文件 将导入为噪声没有出错信息。
  • 文件包含 PCM 音频但是扩展名错误 (例如MP3) 导致冻结
特效和分析器:
  • 一个空的命令可以被添加到一个命令链,不过会导致运行时显示出错消息。
  • 如果进行多个音轨分析,频谱分析不能维持信号的电平。
修复其他BUG:
  • Audacity 暂时进行了修复,将不能创建长度大于 采样格式或项目格式允许的块文件, 也不会删除这些,因此不会导致数据丢失。所有发现的过长的 块会被保留但是被“孤立”起来,所以看起来会是静音。
  • 如果进行剪切或粘贴操作,然后在同一个会话中重新打开项目, 会错误地报告孤立的块文件。
  • 修复一些拖动轨道导致崩溃和音频错误的问题。
  • (Windows) 打开ANSI环境下创建的已损坏的.aup文件时,会出现数据丢失 .现已解决。
  • (Linux) 如果 USE_PORTMIXER 未定义时恢复构建。
变更以及改进:
  • 标准化: 处理更快,界面改进。非分割立体声的 左-右平衡默认被保留下来,提供一个勾选框选项 来分别处理立体声的两个声道。
  • 频谱程序支持的窗口最大达到 32768 ,频率达到 采样率的一半 (也许是最大)。
  • 混音和渲染现在不会渲染起始时间和第一个音频之间的 空白区域,另外会保留起始时间之前的音频。 要想保存起始时间前的静音,请在渲染之后生成静音。
  • 将一部分编辑菜单加组到 "移除音频" 和 "剪辑边界"中。
  • 清除演讲模式已从界面首选项中移除 (如果你在之前版本上启用了此项, 那么此功能照样可用,但是你也得去那里禁用它)。
  • (OS X) 新增支持 AudioUnit MusicEffects (但不支持 MIDI )。
  • (Linux)在配置中,为每个程序名每个用户设立 用户文件夹.
  • (Linux) 将默认的临时文件路径从 /tmp 更改为 /var/tmp ,所以能在重启后依然保留此文件夹。 .

请注意 正式发行版的已知问题 (同样可在 README.txt 中查看到)。

Audacity 1.3.13 中的变更

修复BUG:
界面:
  • 剪切或复制当前轨道到另一个采样率不同的轨道 会造成速度改变。
  • 在一个片段中生成(音频)会导致片段 长度变化或产生假片段。
  • 录制的立体声音轨高度只有导入或生成的轨道 的一半。导入立体声文件时 会在轨道名后面加 "1" 。
  • 编辑> 区域保存 不会保存光标位置。
  • (Windows) 如果快速点击界面,会导致项目崩溃, 当重复使用特效处理音频轨结尾时崩溃 .
  • (Windows) 某些 Unicode 字符不能当做标签, 或是在使用某些输入法后出现无响应。
  • (OS X) 当退出空项目窗口时崩溃, 或有处理窗口进行工作时点击主项目窗口 并退出会导致崩溃。
  • 很多其他界面修复,包括所属的对话框, 键盘首选项和波形图上的虚假线。
导入和导出
  • 支持 FFmpeg HEAD 至随后的 FFmpeg 各版本。这能极大地增强 Linux 平台对 FFmpeg 的支持。 Windows版和 Mac 版 FFmpeg 版本更新到 v0.6。这主要修复将单声道 AAC 以立体声 形式导入的问题,虽然当前的 0.5 版 FFmpeg 也能做到。 work.
  • 当 FFmpeg 和 LAME 的其他版本存在于系统上时, Audacity 应该能自动检测到。
  • 导入未压缩音频时会提出警告 (默认开启) 。 当采用直接读取的未压缩文件丢失时,能更好地给予 警告。
  • 如果使用不会弹出元数据编辑框的程序来导出项目,那么 已导入的 ID3v2 元数据标签会丢失 (例如,当使用链里的命令 导出时). 注意: 因为此次修复,要导出 ID3v1 标签则必须使用 (扩展程序),必须安装 LAME 。 ndLAME.
  • 使用 WAV 头部的 U-Law/A-Law 文件现在已使用标准的 18 byte fmt chunk,所以可被大部分电话软件识别。
  • 使用 "MP3 文件" 导出可变码率 MP3 时,文件比真实需要的更大, 这是因为禁用了比特池(注:bit reservoir,目的是在帧间微调比特量,以达到比特流的帧间压缩。)特性
  • (OS X) 从 iTunes 导入的文件可能会创建出 带有不可用字符串的 .aup 项目文件,导致下次打开项目 时出错。 注意:如果你使用上个公测版建立了 包含这种不可用字符的项目文件,那么还会出现 "指向不可用字符号码"这个错误。要修复此问题, 请用文本编辑器打开 .aup 这个文件的副本,关掉 自动换行,然后找到错误信息提示的错误行,移除 以 &# 起始, 以分号(;)结尾的字符串。
修复的其他BUG有:
  • Nyquist 特效崩溃问题,异常滑块行为, 对反斜杠,双括号和 Unicode 支持更好 characters.
  • (Windows 以及 OS X) VST 特效处理速度和之前 版本比非常慢。
  • (OS X 10.5 PPC) 在第一次安装 Audacity Beta 时,如果 检测到 VST 特效,则会无法启动。
  • (Linux) 如果使用 pulse 设备录音,同时 开启了原带配音和/或软件同步监听时,软件会崩溃或停止响应。
  • (Linux)如果 Audacity 配置使用了 libsamplerate,那么在用“以指定速度播放”,采用 0.08 倍速或更低速度播放时会崩溃。
变更和改进:
  • 控制工具栏更名为播录工具栏。
  • 设备工具栏 (默认) 会显示出所有输入及 输出设备,包括雏菊和录音频道数。 在Windows XP 或一些更老的系统上,输入/输出选择 不需要再在混音器工具栏中进行选择。新增 播录 > 重新扫描音频设备菜单,用于刷新设备列表。
  • 新增 "同步锁定轨道" 特性(可在轨道菜单中开启), 此选项允许多组音频/标签在轨道长度发生改变时 保持同步(注:例如拖动一个音频,别的音频/标签会跟着移动)。
  • 均衡器: 新增 "管理曲线" 对话框,用于调整导入 和导出的曲线。
  • 噪声消除:新增 "敏感度" 调节滑块, 用于调节噪声阈值,新增噪声隔离选项。
  • 新增 "扩展导入" 首选项,用于,可以制定让不同的导入器打开 不同类型的文件。
  • 改进崩溃自动恢复程序。 autosaved.
  • MIDI 轨道现可被纵向缩放,可使用时间移动工具移动,能正常显示 杆形线(bar lines)。 注意: 声道选择按钮不能在 1.3.13上使用。
  • (Windows 和 Linux) 当只剩下一个窗口时点击 窗口上的关闭按钮,或是其他系统关闭按钮,则软件会直接退出。 而 文件 > 关闭按钮会关掉当前的项目,并打开一个新项目。
  • (OS X) 简化安装程序,会在系统创建 "Audacity" 文件夹。

请注意查看 发行版当中已知的问题 (此信息也包含在 README.txt 文件中)。

Audacity 1.3.12 中的变更

Bug修复:
导入和导出:
  • AAC 文件不能以 48000 Hz 采样率导出
  • 当使用 FFmpeg 导入多个文件时, 除第一个文件外,别的都会使用原生导入器 导入
  • FFmpeg 自定义导出窗口在800 x 600 分辨率的显示器上太大
  • 如果使用按需导入的文件不可用,会 导致项目未响应
  • (Linux)如果导出 WAV/AIFF 文件时选择 覆盖一个有别名(alias)的文件,而此文件已使用命令行导入, 则会崩溃
标签:
  • 在波形轨和标记轨上剪切或删除一个区域 不会移动标记
  • 如果开启“吸附到”功能,则不能正确吸附到标记 或者边界
  • 如果使用命令行将标签包含到音频选区内,则
  • 可进行标签反向
其他 bug 修复:
  • 使用非英语语言时,使用生成特效会导致 选区缩短(truncated)
  • 高精度的鼠标滑轮会导致崩溃
  • 使用播录菜单修改录音首选项时, 不会更改其他项目的菜单
  • (Windows 7) 点击打开文件或保存对话框会导致 文件或文件夹从列表中消失,文件过滤器 崩溃
Changes and improvements:
  • A hover tooltip is now provided if the Mixer Toolbar input selector cannot control the system slider for the selected input.
  • More intuitive behavior when moving and resizing labels by dragging
  • Support added for importing lists of files (LOF) containing relative paths
  • Export Multiple: new option to use a numerical prefix before existing label or track names; "Success" dialog now resizable
  • New Equalization preset "Inverse RIAA", with new button to invert other curves
  • Timer Record now remembers last scheduled duration
  • Meter Toolbar can now be made much narrower, and so more suitable for vertical orientation
  • New Preferences choice for "System" language which is used on first run instead of asking user to choose language
  • Warning now provided if WAV/AIFF exports are not successfully completed
  • (Linux) Improved icon set in compliance with freedesktop.org Icon Theme Specification 0.6

Please be aware of Known Issues at Release (also viewable in the included README.txt).

Audacity 1.3.11 中的变更

Bug fixes for:
Imports and Exports:
  • Bug when exporting partial selections caused too much audio to be exported is fixed
  • Fix corrupt files exported through FFmpeg when metadata included (metadata is now exported correctly in M4A files)
  • Prevent saving a new Audacity Project over an existing one as this could corrupt both projects
  • Improved help for files that cannot be imported because the relevant optional library is missing
Effects:
  • Allow effects which change the length of the audio they work on to also be applied to selected label tracks, thus keeping them synchronized
  • Fixed inability in Nyquist plug-ins to add labels to an existing label track
  • (Mac)  Equalization window was corrupted after Preview
  • (Linux 64-bit)  Fixed crash Generating Click Track
Audio Devices:
  • Fixed bug causing recording to stop short when the recording sample rate is not supported by the sound device and libsamplerate is used for resampling
  • Fix crash when opening Preferences on a machine where there are no available audio devices
  • Fixes for bugs using Timer Record and Sound Activated Recording
User Interface:
  • Sizes of some dialogs adjusted to ensure they fit on the screen
  • Fix for supposedly "hidden" items appearing on screen with large monitors
  • Various keyboard shortcut and translation fixes
Other bug fixes:
  • Several timing-dependent crashes and minor incorrect behaviours have been fixed
  • Windows installer now installs correctly over previous versions of Audacity
变更和改进:
  • (Windows)  图标质量更好, 具有更高分辨率,背景透明。
  • 新声音寻找插件,用于标记静音之间 的音频区域,这样可在导出多个文件时去除 静音区域。

请注意查看 此发行版已知问题 (也可在 README.txt 文件中查看)。

Audacity 1.3.10 中的变更

Bug fixes for:
Imports and Exports:
  • Freeze importing audio files when Default View Mode set to Pitch (EAC)
  • Simultaneous On-Demand imports sorted incorrectly
  • WAV or AIFF files imported as noise if Preferences set to copy in the data at 24-bit quality
  • WMA exports corrupted if they contained metadata
  • Metadata Editor appeared before the Export window when exporting to any format
Effects:
  • Crash or hang using Equalization on longer tracks
  • Reverse did not reverse clip boundaries
  • Nyquist:
    • Excessive memory consumption led to slow processing or crashes
    • Values appearing in text boxes not always the default or previously entered values
    • Errors running in European locales where comma used as decimal separator
  • VST effects remained in Effect menu even when re-scanned and no longer available
  • Truncate Silence produced incorrect results if silences spanned a block boundary
Other bug fixes:
  • Spurious "not writable/disk full" errors when saving projects
  • Playing, rendering or exporting multiple tracks led to desynchronized playback or loss of audio data
  • Crash opening Preferences when no recording and/or playback devices enabled or connected
  • Preferences window: OK button did not respond to ENTER when a tab selected in left-hand panel
  • Mixer Board solo button handling
  • (Windows) After a period launching correctly, Audacity sometimes did not come up on top at launch
  • (Mac OS X) Correctly installed Help folder could not be found
  • (Mac OS X and Linux) Output slider could affect VU playback meter which then did not reflect actual waveform volume level
  • (Linux) Undoing or redoing a label edit could cause a crash
Changes and improvements:
  • Linked audio and label tracks disabled until a future version so they can be bug fixed
  • Input volume slider will be disabled if it doesn't have proper control of system slider; use the system slider instead
  • Proper support for copying/pasting label-with-audio including label text; new Edit > Paste Text to New Label menu item to paste system clipboard
  • Contrast Tool now modeless, more intuitive handling of multiple project windows, various other minor improvements

Please be aware of Known Issues at Release (also viewable in the included README.txt).

Audacity 1.3.9 的新特性

Bug fixes for:
  • Crash, slow launch or excessive CPU/memory use arising from automatic VST support:
    • VST instrument plug-ins should now be correctly ignored
    • VST effects now scanned only at start of first session that detects them, then cached
    • Effects are now not loaded or opened until needed
    • New "Effects" tab in Preferences to enable/disable VST effects and enable VST rescan on next launch
  • Default View Mode now works
  • Chains now always apply their stored parameters rather than those last used in Effect menu
  • Non-MP3 files imported via drag or Recent Files caused crash if filter in file open window set to MP3
  • AAC exports (using the optional FFmpeg library) silenced
  • Generating audio always fitted the project in the window; fit now done only if generating in new track
  • View menu items/shortcuts incorrectly disabled when playing or recording
  • DTMF generator defaulted to zero duration on open
  • Unwanted interactions between linked audio and label tracks
  • (Windows XP)  Failure to launch on some machines due to "incorrect configuration" issue
  • (Windows)  Crash importing a stereo file while a screen reader such as JAWS is running
  • (Mac OS X) :
    • Audio Units effects applied to all tracks in project even if not selected
    • QuickTime importer now handles files greater than 16-bit or 64000 Hz
  • Various other interface bugs
Improvements:
  • Compressor: new option to compress based on peaks, improved attack and decay time support
  • Mixer Board: improved design, more responsive meters and now interacts fully with Track Panel in main window

Please be aware of Known Issues at Release (also viewable in the included README.txt).

Audacity 1.3.8 的新特性

New Features
Effects and Analysis:
  • VST Effects now display GUI by default
  • Faster Equalization and Noise Removal; improved Truncate Silence and Click Track
  • Chains applied to files now clear temporary data after processing each file
  • Updated Nyquist implementation with support for SAL syntax and improved memory management
  • Plot Spectrum now analyzes up to 237.8 seconds of audio, with separate windows for each project and improved display; new preferences for Spectrograms
  • Contrast Analysis tool now modeless for easier use
Interface:
  • Draft Manual/Quick Help included in Windows and Mac installers
  • New "Mixer Board" view with per-track VU meters
  • Mute, solo, gain, pan and track height saved in projects
  • More compact Preferences window with easier-to-use Keyboard tab and new toolbars shortcuts
  • New Screenshot Tools and improved screen reader support
Other:
  • Record more than 16 channels (hardware/drivers permitting)
  • Improved support for non-mmap ALSA devices such as PulseAudio
  • 32-bit float data over 0 dB now handled without clipping
  • "Stop" option when importing preserves already imported data
  • AMR NB import and export now supported on all platforms if the optional FFmpeg library is installed
  • Faster waveform drawing and better response in multi-track projects
Bug fixes for:
  • Export Multiple: failed if empty label encountered; files silenced if overwriting imported WAV files without copying them in
  • Metadata Editor hidden if it was on a now unavailable second monitor
  • Misaligned audio after "Split New" or Noise Removal effect
  • Incorrect label movement and paste with linked audio and label tracks
  • Equalization, Cut Preview and Advanced Mixing Options dialogue
  • (Linux) Mixer Toolbar should now adjust levels and select input sources properly
  • "Audio cache" preference caused crashes - data is now only cached in memory if available RAM is above a level defined in preferences
  • Various other crashes

Please be aware of Known Issues at Release (also viewable in the included README.txt).

Audacity 1.3.7 的新特性

Improvements and new features
  • F11 Full Screen mode
  • High-quality "Sliding Time Scale/Pitch Shift" effect
  • "Audio Contrast Analyzer" for testing audio on the internet for WCAG2 accessibility compliance
  • On Windows, sound devices can now be opened using the more efficient DirectSound API
  • As a first step towards improving latency correction, a fixed rather than variable correction is now applied, customizable in Preferences
  • Numerous minor interface improvements such as Metadata Editor navigation, new "hh:mm:ss + hundredths" selection format
Numerous usability and stability fixes
Cross-platform Bug Fixes:
  • Muting/soloing caused incorrect channel results in exported stereo files
  • Nyquist effects: pasted unmodified audio into the result, no progress bar, truncation of processed audio on cancel
  • Noise Removal: pasted unmodified audio into the result, unwanted filtering tail
  • Uncompressed exports:
    • Export as WAV could be corrupted if overwriting to same file
    • Export multiple to uncompressed formats only produced 16-bit WAV
  • Compressed exports:
    • MP3 exports now produce correct bit rate mode, quality and length, with improved metadata visibility in player applications (Windows users will require the latest version of the LAME encoder)
    • WMA exports containing metadata are now correct
  • Restored support for multi-channel recording devices that can record more than two channels using Audacity
Platform-specific Bug Fixes:
  • Windows Vista: fixed crash opening Preferences with no sound devices enabled and connected
  • Mac OS X and Linux:
    • fixes for spurious clipping, label typing, no shortcuts after running effects
    • project rate now always changes to respect that of first imported file
  • Mac OS X only:
    • fixes for inactive or corrupted menus, hidden dialogues, portable settings not detected, and inability to set independent Command and Control shortcuts
    • FFmpeg installer now available

Please see the included README.txt for full details of changes, and for issues known at time of Release.

Audacity 1.3.6 的新特性

Major new capabilities
  • FFmpeg support (downloadable separately) permits import and export of a much wider range of file formats, including WMA, M4A and AC3, plus import of audio from video files
  • On-demand loading of uncompressed files eliminates the wait before files can be played or edited
  • Linked audio and label tracks allow labels to move with their corresponding audio when cutting, pasting or changing speed or tempo
Other features
  • Hierarchical plug-in grouping for built-in plug-ins
  • Sound activated recording
  • Ability to save smaller, compressed project files
  • MIDI files can now be imported, cut-and-paste edited, then exported
Miscellaneous
  • Transport menu for easy access to frequently used recording/playback commands and preferences
  • Default View Mode Preference to choose Waveform, Spectrum or Pitch view
  • Several bug fixes

Audacity 1.3.5 的新特性

Recording / Playback
  • Several bugs fixed so that latency correction should be better, and more devices work correctly.
  • Problems with invalid sample rates under Linux should be much rarer.
  • Newer version of Portaudio library.
  • New feature to record onto the end of an existing track (hold Shift while clicking Record).
Import / Export
  • Updated versions of Libogg, Libvorbis, Libflac, Libsndfile and Twolame libraries.
  • Handling of unsupported file formats more informative.
  • Handling of file names with slashes on OS X improved.
  • New dialog allows replacement of illegal file name characters on all platforms.
Interface
  • Improved scaling and layout for rulers and VU meters.
  • Envelope fixes/improvements including full control of undo/redo.
  • New keyboard shortcuts and improved menu navigation.
  • Preferences:
    • More intuitive tab arrangement.
    • New options for mute/solo and Metadata Editor behavior.
    • Language can now be changed without restart.
  • Expanded Build Information tab.
Effects
  • New Vocal Remover plug-in, improvements for Generate effects.
Compilation
  • Fixes when building Audacity with libraries disabled.
  • Improvements to make Mac and Solaris builds easier.
Security
  • Full fix for issue CVE-2007-6061 on systems where temporary directories can be changed by other users (thanks to Michael Schwendt).
Miscellaneous
  • Updated translations for many locales.
  • Several stability improvements.

Audacity 1.3.4 的新特性

New features
New Welcome Screen with introduction to Audacity.
Enhanced Windows Shell integration, so Audacity shows up in lots of Windows places such as "Open With".
New keyboard command: "Mix and Render to New Track" (bound to Ctrl+Shift+M).
New keyboard shortcut: "Shift-A" starts playback when stopped, or performs "Stop and Select" when playing.
Added support for VAMP audio analysis plug-ins.
Solo button solos only one track at a time, and a track cannot be both mute and solo.
Interface
Keyboard shortcuts for making short/long jumps along the timeline.
Added "Snap To" in the Selection Bar.
Made keyboard navigation easier when multiple menu items with the same first letter exist.
Enhanced interface for label editing.
Layout of OK/Cancel buttons consistency improved.
Preferences:
  • "Select all audio in project, if none selected" (on by default).
  • "Beep on completion of longer activities" (system bell, not main output).
  • Other preferences cleaned up and explanations improved.
Envelopes: Many fixes when copying / pasting / repeating.
Many translation updates.
Track height fixed in several cases.
CleanSpeech mode switching without closing and re-opening fixed.
Opening/Saving Formats
Metadata editor added for OGG, FLAC and WAV/AIFF exports, and general improvements.
Metadata import improved.
Muted tracks are no longer audible in the exported mix.
Effects
Truncate Silence: support for multiple and stereo tracks.
Dtmf Generator:
  • Added support for keypad letters.
  • Added an amplitude control.
Compressor: variable decay time added.
Equalization:
  • Clicks at start / end prevented.
  • Improvements to saved curves being found.
  • Preview works correctly.
"Merge" command appears in Undo history.
Clipping detected more reliably.
Nyquist plug-ins reviewed and enhanced.
Better (and more) progress bars.
Canceling effect always restores previous audio.
Several improvement to effects in batch mode.
Recording/Playback
Improvements to latency correction.
Updated version of portaudio-v19 library.
Note that Help is no longer built in, but accessible on the Web via links in Audacity.

Audacity 1.3.3 的新特性

Opening/saving formats
Import
  • Import of audio from QuickTime (mov, aac, m4a) files now supported on OS X.
  • Broadcast Wave Format (BWF) wave files can now be imported.
Export
  • Metadata can be added to OGG files.
  • Improved Export option selection.
  • Additional export options added to MP3 and FLAC file formats.
  • Command line exporter now supported on Windows and OS X.
Effects
EQ effect
  • Responsiveness improved.
  • Several enhancements added.
  • Batch support added.
New Auto Duck effect
Added previewing to AudioUnit effects.
Much improved Noise Removal effect
Effects previewing can now be canceled.
New DTMF Tone Generator effect
Additional options available in Noise effect.
Improved the Tone Generation effects.
Other features
New built-in screen capture utility
Major speed improvement in Spectrogram rendering
Increased support for drag and drop on OS X.
Support added for building against wxWidgets 2.8.x.
Can now open multiple Audacity Projects at once from Explorer on Windows.
Improved main window sliders.
New support for snapping while selecting and sliding
Improved track focus handling and visual feedback.
Speed improvements and handling of resizing/zooming in tracks
Spectrum view can now be zoomed.
New internal file cache to improve handling of project files over networks
Also
Many improvements to language specific translations
Numerous stability improvements

Audacity 1.3.1 及 1.3.2 的新特性

  1. 改进的工具栏靠附
  2. 改进了键盘导航的轨道焦点
  3. 修复和均衡特效
  4. 及时录音
  5. 项目保存和恢复
  6. 选择工具栏
  7. Mac OS X 特性

Audacity 1.3.0的新特性

  1. 折叠/展开音轨
  2. 每条音轨多个剪辑
  3. 改进的标记轨
  4. 其它特性