FAQ:Aprire e salvare file
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Contents
- 1 Come faccio ad aprire un progetto di Audacity (file AUP) con un altro programma?
- 2 Perchè, quando salvo un progetto, Audacity crea una cartella con molti file ".au"?
- 3 Audacity si è piantato! Posso recuperare i dati che non ho salvato?
- 4 Can Audacity import or export formats like WMA, AC3 or iTunes files (M4A/MP4)?
- 5 Why do my exported files not include the metadata, like Album Artist or Genre?
- 6 Why can’t I play MIDI files?
- 7 How do I import a track from an audio CD?
- 8 How do I save my recording on an audio CD?
- 9 How can I split a long recording into multiple files or CD tracks?
- 10 Why does Audacity warn about the name or nothing happens when I export or save?
- 11 Why does my file import with a hatched pattern then slowly change to a waveform?
- 12 I copied the .aup file to another computer or sent it by e-mail to a friend; but now when I open it there's no sound, why?
Come faccio ad aprire un progetto di Audacity (file AUP) con un altro programma?
I file di progetto di Audacity sono in un formato speciale che può aprire solo Audacity. Per usare un progetto di Audacity in un altro programma o masterizzarlo in un CD, per prima cosa apri il file AUP con Audacity (se lo hai salvato di recente, sarà anche reperibile nel menù File > File recenti). Quindi usa il comando Esporta nel menù File per salvare l'audio in un formato standard come WAV o AIFF, che può essere usato da altri programmi. Per saperne di più su come lavorare con i progetti Audacity, dà un'occhiata a Progetti di Audacity.
Perchè, quando salvo un progetto, Audacity crea una cartella con molti file ".au"?
Audacity spezza le tracce lunghe in piccoli pezzi, così riesce a apportare modifiche più velocemente. Quando salvi un file di progetto AUP, Audacity salva tutti quei pezzi in una cartella _data con lo stesso nome del file AUP. Per esempio, "song.aup" aprirà i pezzi presenti nella cartella "song_data".
Per aprire un progetto, apri il file AUP: Audacity caricherà automaticamente i file ".au" nell'ordine corretto. Un progetto che hai salvato di recente può essere aperto da
|
Non dovresti mai spostare, cancellare o rinominare la cartella "_data" o i file ".au" contenuti in essa |
Per imparare di più sul come lavorare con i progetti di Audacity, dà un'occhiata a Progetti di Audacity.
Vedi anche:
Audacity si è piantato! Posso recuperare i dati che non ho salvato?
In caso di "crash" quando ci siano dati di Audacity non ancora salvati (come una registrazione non ancora salvata come progetto, od un progetto esistente ma con modifiche non ancora salvate), Audacity cerchera' di recuperare quei dati quando rilanciato. Vedere Recovery per dettagli ulteriori.
Can Audacity import or export formats like WMA, AC3 or iTunes files (M4A/MP4)?
Audacity as shipped can import or export the following audio formats:
- Uncompressed audio formats: most WAV and AIFF files including all PCM variants
- Compressed audio formats: Ogg Vorbis, FLAC and MP2
You can install the optional FFmpeg library to import and export a much larger range of audio formats including AC3, AMR(NB), M4A, MP4 and WMA (on Mac only, Audacity can import unprotected M4A, MP4 and MOV files without FFmpeg). Audio files that are DRM-protected to work only in particular software cannot be imported. FFmpeg will also import audio from most video files or DVDs that are not DRM-protected.
You can export to iTunes by exporting to any location on your computer then add the file to the iTunes library.
See Importing Audio and the File Export Dialog for more help with importing and exporting.
See also:
Why do my exported files not include the metadata, like Album Artist or Genre?
When you export a file, by default Metadata Editor pops up where you can add, delete or change embedded information about the file. Metadata is well supported in many audio formats, especially the ID3 tags used by MP3, but not well supported in WAV.
- Few audio programs or players are able to read WAV metadata, and Audacity can only export WAV metadata for "Artist Name", "Track Title", "Year", "Comments", "Copyright" and "Software". If using iTunes, you can export to AIFF as an alternative lossless format with metadata support.
- Some audio formats supported by the optional FFmpeg library may not export complete metadata.
- Metadata in imported MP2 and MP3 files except for the default Metadata Editor tags ("Artist Name", "Track Title", "Album Title", "Track Number", "Year", "Genre" and "Comments") will be exported as a "custom" ID3 frame. This means that exported custom tags such as "Album Artist", "BPM" and "Composer" will not be seen in Windows Media Player, Windows Explorer, iTunes or other software that ignores custom tags.
For all formats, Audacity currently discards any existing lyrics or album art when exporting.
See also:
- How do I download and install the LAME MP3 encoder?
- How do I download and install the FFmpeg Import/Export Library?
Why can’t I play MIDI files?
MIDI files are essentially nothing more than a bare set of instructions describing how to play a series of musical notes. They are thus very different to audio files like WAV which are an actual recording of a piece of music.
For now, Audacity cannot play MIDI files or convert them directly to audio files. You can import MIDI files for visual comparison with audio files, and can perform simple cut-and-paste edits on MIDI files then export as a new MIDI. You can read more about working with MIDI files on this Wiki page.
How do I import a track from an audio CD?
Audacity cannot import a track directly from an audio CD. You must use a separate program like CDex or iTunes® to extract CD tracks into a format that Audacity can read, like WAV or AIFF.
On Mac OS X computers, CD tracks appear in Finder as AIFF files so can be imported directly into Audacity. For more help on importing audio from CD tracks on both Windows and OS X, see our Wiki help page on How to import CDs.
See also:
How do I save my recording on an audio CD?
After making a recording or editing a file in Audacity, follow these steps to save your work on an audio CD.
- Choose "WAV (Microsoft) signed 16 bit PCM" or "AIFF (Apple) signed 16 bit PCM" in the File Export Dialog's "Save as type" drop-down menu to export to an audio file.
- Use any CD-burning software (iTunes® or Nero, for example) to burn this file to a CD. If you burn in a program that is also a media player, like iTunes® or Windows Media Player, you may need to drag the files for burning into a playlist or library. If in doubt, see the program's help files.
To make a disc you can play in all CD players, make sure to create a "music" or "audio" CD (not a "data" CD). Use CD-R discs, because some players cannot read CD-RW. You can burn only 74 minutes to an audio CD in most cases, but possibly up to 80 minutes depending on the CD-R. This is a limitation of the audio CD format.
Some CD software will burn only 16-bit, 44100 Hz stereo audio files. If your CD recording software won't open your file, export the file again after choosing the following settings in Audacity:
- At the bottom of the Audacity window, set the Project Rate to 44100 Hz.
- If your project does not already contain a stereo track, choose . This will make Audacity export a stereo file.
See the Burning music files to a CD Tutorial and Burning CDs for tips on CD burning with Windows Media Player or iTunes® and on burning "gapless" CDs or longer "data" CDs.
See also:
How can I split a long recording into multiple files or CD tracks?
Follow these steps to create a separate audio file for each song or segment of a long recording. This is particularly useful if you are creating an audio CD, since after burning each file to CD there will be a separate CD track for each song which you can skip to in the CD player.
- Click to place the cursor at the start of the first song.
- Choose . If you wish, you can type the name of the song in the label.
- Repeat steps 1 and 2 for each song.
- When you are finished, choose . When you click the "Export" button, Audacity will save each song as a separate file, using the format and location you choose.
Alternatively, Audacity can attempt to detect the silences between tracks and label them automatically. See the full instructions at Splitting a recording into separate tracks.
See also:
Why does Audacity warn about the name or nothing happens when I export or save?
If you export an audio file that has a period in the file name (for example, "92.3 FM capture" ), Audacity will warn you, rather than automatically add the appropriate extension for your chosen format. This gives you the flexibility to add a custom extension for a particular file type. For example, to export an AAC file with the .m4b audio book extension, you would add ".m4b" (without quotes) to the end of the file name then answer "Yes" to the warning.
If you need a period in the file name of a standard file type like WAV or MP3, answer "No" to any warning, then add another period followed by the file type at the end of the name. Otherwise, you may not be able to play the file on your computer. For example, to export a file whose full name with extension is "92.3 FM capture.wav", type that name out in full when you export the file:92.3 FM capture.wav
and not just "92.3 FM capture".- Bill 10May12: This whole "forbidden characters" thing is complex. For example on OS X:
- Save a project as "Slash/test.aup"
- The OS saves the file with that name
- The window title is "Slash:test"
- In recent files the project name shows as "Slash:test.aup"
- The file can be successfully opened with File > Open, File > Recent Files, and by double-clicking the AUP file in the Finder
- Attempt to save a project as "Colon:test"
- The OS substitutes "-" or ":" in the File Save dialog box, so this can't be done.
- Gale 03Sep12: Same if you do straight export
- Attempt to export multiple a label "Track2/1" as aiff
- Audacity throws the error "Cannot export audio to /path/to/Track2/1.aiff"
- Gale 03Sep12: That's bug 119
- Attempt to export multiple a label "Track2:1" as aiff
- The OS substitutes "/" for ":" and the file is successfully saved as "Track2/1.aiff"
- Save a project as "Slash/test.aup"
When exporting and when saving an Audacity project, Audacity may also warn you (or not respond correctly) if you type a file name that includes characters that are forbidden by the operating system.
| Forbidden Characters: | |
| On Windows, all of the following | \ / : * ? " < > | |
| On Mac OS X, colon only(1) | : |
| On Linux, forward slash only | / |
| (1) | "/" in saved file names appears as a colon in Audacity. |
Apart from operating system restrictions, Audacity has full support for typable Unicode characters. However, if you want to send your file to someone else or make it available on the internet, only use A to Z characters, numbers and underscores ( _ ) to make sure your file will be compatible.
Why does my file import with a hatched pattern then slowly change to a waveform?
See this page: On-Demand Loading.
I copied the .aup file to another computer or sent it by e-mail to a friend; but now when I open it there's no sound, why?
To use a standard Audacity project on another computer, you have to include the _data folder that has the same name as the project. This makes the size very large. The _data folder has the small .au files that contain the uncompressed audio data.
Also if your project contains imported WAV or AIFF files, you must choose and if necessary copy in those files to the project before using it on another computer.
See Audacity Projects for more about the structure of Audacity projects and why you would probably need to export an MP3 audio file to make your audio small enough to e-mail.
Alternatively, if you have a broadband internet connection and you package your .aup file and _data folder into a zip file, there are many free file transfer services that allow upload and storage of large files. Try for example minus.com. Audacity also has a feature at to save a much smaller project using OGG files (this will however give you a slightly lossy project).
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