venerdì 9 novembre 2007

Audacity, ottimo editor audio multipiattaforma

Maria Susana Diaz | 21:34 |
Altro pacchetto immancabile, Audacity è un editor audio multipiattaforma, molto semplice e affidabile. Finalmente la versione di Gutsy sarà la prima ad adottare la non-più-troppo-nuova interfaccia che fa uso di WxWidgets/GTK2:

Audacity è un'applicazione Open Source utile per registrare e modificare i file audio. Permette di effettuare una serie di operazioni tra cui:

  • registrare dal vivo;
  • acquisire e digitalizzare i brani musicali presenti su cassette ed LP;
  • modificare file in formato Ogg Vorbis, MP3 e Wav;
  • tagliare, copiare, dividere, e mixare i brani;
  • modificare la velocità di riproduzione;

In questa versione è stato aggiunto il supporto FLAC e sono stati risolti alcuni bug.

E' possibile far uso di Audacity per editare i propri effetti sonori od i propri brani musicali, effettuare tagli, mixare tracce od applicare effetti particolari.
Offre numerosi tool per l'analisi in frequenza, per eliminazione del rumore, per l'esaltazione dei bassi e molto altro. Il suo principale vantaggio è quello di essere addirittura completamente gratuito.


  • registrazione e riproduzione mono e stereo
  • supporto per la lettura e la scrittura di diversi formati: WAV, MP3, Ogg Vorbis, AIFF, AU e raw.
  • modifica mediante le operazioni taglia, copia, incolla ed elimina.
  • modifica e mixaggio di un numero illimitato di tracce
  • modifica dell'intonazione senza variazioni di velocità e viceversa
  • rimozione dei rumori di fondo
  • equalizzazione
  • compressione, normalizzazione e amplificazione del segnale audio
  • vari effetti come eco, wha wha, phaser e riproduzione al contrario

Le funzionalità possono essere estese mediante l'aggiunta di ulteriori plugin scaricabili da Internet.


Some of Audacity's features include:

  • Importing and exporting WAV, AIFF, MP3 (via the LAME MP3 Encoder, downloaded separately), Ogg Vorbis, and other file formats
  • Version 1.3.2 also supports FLAC, the open-source lossless audio codec.
  • Recording and playing sounds
  • Editing via Cut, Copy, Paste (with unlimited Undo)
  • Multi-track mixing
  • Digital effects and effect plug-ins. Additional effects can be written with Nyquist
  • Amplitude envelope editing
  • Noise removal
  • Support for multichannel modes with sampling rates up to 100 kHz with 24 bits per sample
  • The ability to make precise adjustments to the audio's speed, while maintaining pitch, in order to synchronise it with video, run for the right length of time, etc.
  • Large array of plug-ins available
  • Multi-platform: works in Microsoft Windows, Linux and Mac OS X, amongst others.
Language support

In addition to English language help, the ZIP file of the downloadable Audacity software program includes help files for Afrikaans, Arabic, Basque, Bulgarian, Catalan, Chinese (simplified), Chinese (traditional), Czech, Danish, Dutch, Finnish, French, Galician, German, Greek, Hungarian, Irish, Italian, Japanese, Lithuanian, Macedonian, Norwegian (Bokmål), Polish, Portuguese, Romanian, Russian, Slovak, Slovenian, Spanish, Swedish, Turkish, Ukrainian and Welsh in its user interface. A partial Bengali help file is also included.

The Audacity website also provides tutorials in languages other than English.

Scarica Audacity 1.2.6

Per Windows, Mac o GNU/Linux

Scarica Audacity 1.3.3 (Beta)

Per Windows, Mac o GNU/Linux


Audacity è un software libero, sviluppato da volontari. Qui potete vedere come contribuire al progetto Audacity:


We welcome donations to support Audacity development.


Dateci il vostro feedback, riportate gli errori che avete scoperto, e diventate parte integrante della Comunità degli Utenti di Audacity.


Se conosci bene l'inglese e un'altra lingua, potete aiutare traducendo il software Audacity e il sito web. Abbiamo anche bisogno di persone che forniscano supporto per Audacity in diverse lingue.


Se siete programmatori c++, potete unirvi al team di sviluppo e aiutarci a migliorare Audacity. Accogliamo volentieri anche chi ci vuole aiutare con la documentazione o in qualunque altro modo.

New features in Audacity 1.3

Beta warning

Audacity 1.3 is a beta version of Audacity. Users who want a completely stable, finished program should be using Audacity 1.2. Audacity 1.3 has hundreds of new features, but some features may be incomplete or confusing, it is more likely to crash, and you are more likely to lose data. You can install both Audacity 1.2 and 1.3 on the same machine, if you install them to different directories.

Audacity 1.3 is available in many languages, but most translations are incomplete. Words and phrases which have not been translated yet will appear in English.

New in Audacity 1.3.4

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.
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.
  • "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.
Truncate Silence: support for multiple and stereo tracks.
Dtmf Generator:
  • Added support for keypad letters.
  • Added an amplitude control.
Compressor: variable decay time added.
  • 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.
Cancelling effect always restores previous audio.
Several improvement to effects in batch mode.
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.

New features in Audacity 1.3.3

Opening/saving formats
  • Import of audio from QuickTime (mov, aac, m4a) files now supported on OSX.
  • Broadcast Wave Format (BWF) wave files can now be imported.
  • 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 OSX.
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 OSX.
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
Many improvements to language specific translations
Numerous stability improvements

New features in Audacity 1.3.1 and 1.3.2

  1. Improved Toolbar Docking
  2. Track focus for improved keyboard navigation
  3. Repair and Equalization effects
  4. Timer Recording
  5. Project saving and recovery
  6. Selection Bar
  7. Mac OS X features

New features in Audacity 1.3.0

  1. Collapse/Expand Tracks
  2. Multiple clips per track
  3. Improved Label Tracks
  4. Other features

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