readme.txt

一个音频的可执行程序。可以导入MP3/WAV格式的文件后

Changes in 1.2.6:

  * Fix memory leaks on Windows.

  * Correct font size problems.

  * Enable missing FLAC support.

Changes in 1.2.5:

  * An official Intel Mac version is now available.

  * Fixed bug in Generate Silence which caused it to apply to all tracks
    instead of just the selected ones.

  * Mac OS X: audio device opening code has been rewritten.  First, it
    is much more conservative about changing device settings; it will
    not change settings when you open the program or close the
    preferences dialog anymore, and it will not change the settings when
    you begin playback/recording if the current settings are adequate.
    When it does change the settings, it should work much better on
    devices such as the Griffin iMic, ART USB Phono Plus,
    and Ion iMX02 USB.

  * Mac OS X: added new Audio I/O preference that lets you tell Audacity
    to never change any audio device settings.

  * Newer libsndfile supports FLAC import and export

  * Updated soundtouch to current version which is faster and better quality

  * Modified configure script prefers system libraries to local copies to
    reduce compilation times and memory usage.

  * Minor updates to help files.

  * New or updated translations: Bulgarian (bg), Galician (gl),
    Traditional Chinese (zh_TW), Simplified Chinese (zh), Slovenian (sl),
    Swedish (sv), Bangladeshi (bn), Slovakian (sk), Romanian (ro),
    Lithuanian (lt), Welsh (cy), and Turkish (tr).

Changes in 1.2.4:

  * The File menu now includes a list of recent files.

  * The "Generate Silence" effect now prompts for a length.

  * Audacity is now built with Vorbis 1.1, which features better encoding
    quality and file compression.

  * Dragging sound files into the Audacity window now works on Mac OS X
    and Linux, as well as Windows.  (Before, it worked only on Windows.)

  * Better support for certain audio devices on Mac OS X 10.4 "Tiger"

  * The "View History" window can now discard old undo levels to save disk
    space on Windows.  (This previously worked only on Linux and Mac.)

  * "Preferences" command is now in Edit menu.

  * "Plot Spectrum" command is now in Analyze menu.

  * Opening a project file saved by a later version of Audacity displays
    an intelligent error message.  Also, trying to import a project file
    (instead of open it) displays an intelligent error message.

  * Audacity now compiles in Visual C++ .NET 2003.

  * Other minor bug fixes.

  * New or updated translations: Arabic (ar), Czech (cs), Finnish (fi),
    Hungarian (hu), Japanese (ja), Norwegian (nb), Slovenian (sl), 
    Simplified Chinese (zh_CN), Traditional Chinese (zh_TW).

Changes in 1.2.3:

  * Fixed a bug that caused recording to stop or display incorrectly
    after about 50 minutes on some Windows systems.  (This was partly
    fixed in Audacity 1.2.2, but still didn't work on some systems.)

  * The Change Pitch and Change Tempo effects have been upgraded to
    use a new version of the SoundTouch library by Olli Parviainen,
    with better speed and higher quality.

  * libsndfile has been upgraded to version 1.0.11.

  * Fixed a bug that caused the program to run slowly when using the
    Envelope tool.

  * Shift-clicking on a mute or solo button now un-mutes (or un-solos)
    all other tracks.

  * Nyquist plug-ins can now accept strings as input.  Also, a "Debug"
    button has been added to Nyquist effect dialogs, which allows you
    to see all of the output produced by Nyquist, for aid in debugging.

  * When the audio file referenced ("aliased") by an Audacity project is
    missing, Audacity will now always play silence.  Before, Audacity
    would sometimes repeat the most recent audio that was played previously.

  * VU Meters will now always reset when audio I/O has stopped.

  * Fixed a major Mac-only bug that was causing Audacity to crash at seemingly
    random times, but especially during audio playback and recording.

  * New or updated translations: Italian (it), Hungarian (hu),
    Ukrainian (uk), Spanish (es). Polish (pl), Simplified Chinese (zh),
    Norsk-Bokmal (nb), French (fr).

Changes in 1.2.2:

  * VU Meters added for both playback and recording.  Click on
    the recording meter to monitor the input without recording.

  * Export Multiple - new feature that lets you export multiple
    files at once, either by track, or split based on labels.

  * Attempt to automatically correct latency in full-duplex recordings.
    (This does not work perfectly, and is not yet supported on all
    systems.  It will improve in future versions.)

  * Fixed a serious bug that could cause data loss when you save and
    then reload and re-edit an Audacity project containing repeated
    or duplicate data.

  * MP3 tags dialog will only pop up the first time you export as
    MP3; after that it will not pop up again as long as you have
    filled in at least one tag.

  * You can now add a label at the current playback position - in
    the Project menu, with a shortcut of Ctrl+M.

  * Clicking on a label now selects all of the tracks, making it
    easier to use the label track to recall selections.

  * Windows: Fixed a crash in the Time Track "Set Rate" command.

  * Fixed a bug that caused problems with recordings over 45 minutes
    on some Windows systems.

  * Mac OS X: Improved support for the Griffin iMic by fixing a bug
    that was causing it to always record in mono instead of stereo.

  * Added support for Software Playthrough (listen to what you're
    recording while recording it, or while monitoring using a VU
    meter) - this makes it possible, for example, to record using one
    audio device while listening to it play through a separate device.

  * Unix/Linux: Fixed freeze caused by captured mouse when audio
    device hangs.  (Audacity may not respond, but it will no longer
    freeze all of X.)

  * Fixed a cosmetic bug that caused improper waveform display if
    you tried to open an Audacity project saved on a different
    platform (e.g., copying a project from a Mac to a PC).

  * Fixed bug that could cause instability when pasting, splitting,
    or duplicating a label track.

  * You can now change the font of a label track by choosing "Font..."
    from the label track's pop-up menu.

  * Basic printing support has been added.  Currently it scales the
    entire project to fit exactly on one page.  Try printing in
    landscape orientation for best results.

  * Mac OS X and Windows: Audacity ships with a newer version (1.0.1)
    of the Ogg Vorbis encoder.  Vorbis compression will now have higher
    quality and smaller file sizes.

  * Fix a bug that occasionally caused crashes when applying effects
    to split tracks.

  * Zoom In / Zoom Out now properly disable when they're not available.

  * Fixed disk memory leak in Preview

  * Other minor bug fixes and performance improvements.

Changes in 1.2.1:

  * The following translations have been added or updated:  Finnish,
    French, Hungarian, Italian, Japanese, Norwegian, Polish, Russian.

  * Fix a bug that could cause data to be lost when pasting audio
    from one project into another, after the first project has been
    saved and closed.

  * Fix a possible crash when opening or resizing the Equalization
    window, especially when using large system fonts.

  * Don't allow percentages less than -100% in Change Pitch/Speed/Tempo
    effects (fixes a possible crash).

  * Fix a crash when the temporary directory is not available on startup.

  * Correctly load ID3 tags saved in Audacity project files.

  * On Linux and OS X, store lockfiles in the temp directory instead of
    the user's home directory.  This fixes problems in lab environments
    where users have restricted or network-mounted home directories.

  * Fix a bug that prevented Nyquist effects from running when certain
    regional settings were activated.

  * Fix a bug in the Quick Mix command that could cause old temporary
    files to not be deleted.

  * Linux: Fix endianness problems in playback on PowerPC.

  * Linux: Fix compilation problem in Nyquist on MIPS.

  * Linux: Include a more recent PortAudio v19 snapshot (fixes compilation
    problems when building with the --with-portaudio=v19 option).

  * Two new Nyquist plug-ins: "Cross Fade In" and "Cross Fade Out."
  
  * Other minor bug-fixes.

Changes in 1.2.0:

  * New cross-fade effects.

  * Fix problem where samples were drawn in the wrong position
    when zoomed all the way in.  This caused the drawing tool
    to move a different sample than the one under the cursor.

  * Don't use id3v2.4 tags, which are not yet supported by
    most players.  (This was fixed in 1.2.0-pre2, but appeared
    again by accident in 1.2.0-pre3.)

  * Correctly display translated messages in the status bar.

  * When the cursor is on-screen, the Zoom In button now zooms
    to the area around the cursor.

  * Mac OS X: Fixed audio problems on the Apple PowerMac G5.

  * Linux/ALSA: Work around a bug in ALSA's OSS emulation that
    caused Audacity's playback cursor to move too quickly.

  * Microsoft Windows: The Audacity source code should now
    compile out of the box on Windows.

  * Many new/updated translations.

Changes in 1.2.0-pre4:

  * Fixed problems that could occur when importing certain
    non-seekable PCM audio files, such as GSM610.

  * Fixed bug that was causing the samples to shift off-screen
    horizonally when zoomed in very far and the track had a
    time-shift offset.

  * Fixed bugs in the new resampler that added noise to resampled
    audio on some systems. If you experienced noise when exporting
    to a WAV, MP3 or OGG file you may have been bitten by this bug.
  
  * Fixed bug that led to occasional crashes when using the
    time-shift tool in conjunction with high zoom factors.
    
  * Dithering is now only applied on export when it is really
    necessary (e.g. when converting float samples to 16-bit).
    
  * Files that only contain mono tracks are now automatically
    exported to stereo files when they contain tracks which are
    panned to the left or the right.
    
  * The Delete key can now be used to delete the current selection,
    in addition to the Backspace key.

  * Fixed bug where Audacity didn't ask whether to save 
    changes if you close the project or exit while recording.

  * Mac OS X: Supports Playthrough (listen to what you're recording
    while recording it) if your hardware device supports it.

  * Mac OS X: Audacity is now a package (you can right-click on
    Audacity.app and select 'Show Package Contents').  Launch time
    has improved significantly.

  * MS Windows: Fixed problem that caused Windows XP to use 
    the short name of a file ("TESTFI~1.AUP"), which led to 
    problems when the file was later opened again using the 
    long file name.
    
  * MS Windows: Fixed bug that caused file exports to fail 
    if the destination directory was the root folder of a 
    Windows drive.