FAQ:Fare modifiche

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Non funziona!

Perchè non posso usare gli effetti o altri elementi dei menù?

Diversi elementi di menù sono disabilitati quando Audacity sta riproducendo, registrando, o è in pausa. Per abilitarli, premi il bottone giallo Ferma il bottone Ferma.

Tutti gli effetti, molti elementi del menù Modifica e i comandi Taglia, Copia, Ritaglia e Silenzia nella Barra Modifica, richiedono che prima venga selezionato l'audio da modificare.

  • Per selezionare una specifica porzione di audio, scegli lo strumento Selezione, quindi clicca e trascina sulla porzione di audio (che verrà messa in evidenza).
  • Per selezionare tutto l'audio in un progetto scegli Modifica > Seleziona > Tutto.
Se scegli un effetto od un elemento di menù che richiede un selezione, e non la hai fatta, "di default" Audacity selezionerà ed applicherà la modifica a tutto l'audio nel progetto.

Se preferisci, puoi inibire questo comportamento in Preferenze:Tracce togliendo la spunta a Seleziona tutto l'audio nel progetto, se non è selezionato nulla. In questo modo, se non è stato selezionato dell'audio, saranno disabilitati tutti gli elementi di menù che richiedono preventivamente una selezione.

torna in testa


Perchè non posso selezionare meno di un secondo o cliccare nello spazio tra due secondi interi?

Deseleziona Ancoraggio nella Barra Selezione. Se "Ancoraggio" è spuntato, la selezione deve essere pari ad un multiplo di unità di lunghezza, mentre la posizione del cursore viene forzata ad un multiplo di unità di lunghezza, secondo il Formato di selezione corrente.

Se "Ancoraggio" è spuntato ed è settato sui secondi mentre tu hai ingrandito sino ad avere meno di un secondo di traccia visibile, non potrai cliccare o selezionare in quella porzione sino a che non rimpicciolisci oppure togli la spunta ad "Ancoraggio".

torna in testa

Vorrei fare...

How do I select audio in one track?

See Audacity Selection for an extended overview of the principles of selecting audio.

  • How do I select audio in one track using the mouse?
    • Make sure Selection Tool Selection Tool from Tools Toolbar is selected, or press F1 on your keyboard. Left-click to place the cursor on the track's waveform, keep holding the left mouse button, drag the mouse in either direction then release the button. Zoom in if you need to see from left to right in more detail.
  • How do I expand or contract an existing selection using the mouse?
    • Hover over either selection edge. When the mouse pointer changes to a pointing finger, hold down the left mouse button and drag in either direction. Release the button when the edge is in the correct position.
    • It is often quicker instead to hold SHIFT then left-click and hold the button at the point to which you want to move the selection edge. Then drag to fine tune the edge position and release when satisfied. When contracting a selection, hold SHIFT and click inside that selection to left of center to move the left edge, or click to right of center to move the right edge.
  • How can I select and modify selections using the keyboard instead?
  1. If necessary, use UP or DOWN arrow on the keyboard to give focus to the track, then ENTER to select it.
  2. Press J to move to the start of the track, then use SHIFT + . to seek (move the cursor) 15 seconds to right or . to seek one second to right. Or press K to move to the end of the track and use comma instead of period in the shortcut to seek left. The seek lengths can be changed in Playback Preferences. When not playing the track, LEFT or RIGHT nudge the cursor in that direction by one screen pixel.
  3. When the cursor is in the correct position, use SHIFT + RIGHT to expand the selection rightwards or SHIFT + LEFT to expand leftwards. CTRL + SHIFT + LEFT contracts the selection from the right and CTRL + SHIFT + RIGHT contracts from the left.

Alternatively, use Selection Toolbar to place the selection accurately without the need to zoom in.

  • Is there a quick way to select from the cursor to start or end?
    • Select from cursor to track start: Choose Edit > Select > Track Start to Cursor or use the SHIFT + J shortcut.
    • Select from cursor to track end: Choose Edit > Select > Cursor to Track End or use the SHIFT + K shortcut.
    • Select from cursor to project start: Hold the SHIFT key and click on the The Skip to Start button Skip to Start button. Alternatively, use the SHIFT + HOME shortcut. This may be useful if one more of your tracks do not start at time zero.
    • Select from cursor to project end: Hold the SHIFT key and click on the The Skip to End button Skip to End button. Alternatively, use the SHIFT + END shortcut. This may be useful if your tracks are of unequal length.

See also:

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How do I copy or move a selection into another track?

A selection exists in a track when that track is selected. There are several ways to change which tracks are selected.

  • To copy a selection into other tracks: Hover over either selection edge. When the mouse pointer changes to a pointing finger, hold down the left mouse button then drag directly up or down into an adjacent track.

    If you want to extend or contract the selection, you can also drag left or right before releasing the button.

    If you don't want to change the selection length, there is no need to drag. Hold SHIFT while clicking on the Track Control Panel to left of the waveform to include that track in the selection, thereby copying the selection into it.

    • Keyboard users can include tracks in the selection by using UP or DOWN to change the track that has the yellow focus border, followed by ENTER to select that track. Hold SHIFT while pressing UP or DOWN to extend the selection up or down adjacent tracks.
  • To move a selection into other tracks: Copy the selection as above, then hold SHIFT and click on the Track Control Panel of the track from which you were moving the selection, so as to deselect that track.
    • Keyboard users can press UP or DOWN to move the focus to the track from which the selection is to be removed, then press ENTER.

See also:

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How do I combine two files into one longer file?

Follow these steps to splice two files together:

  1. Import both files into Audacity
  2. Select the second one by clicking above the Mute/Solo buttons on its Track Control Panel
  3. Choose Edit > Find Zero Crossings
  4. Choose Edit > Remove Audio > Cut
  5. Place the cursor at the end of the first track by clicking in it then pressing K
  6. Choose Edit > Paste.

You can press the green "Play" button to hear the result, and use the File > Export... command to save it as an audio file.

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How do I mix two tracks together?

To mix two files, import both of them into Audacity. They will appear in separate tracks.

When you press the Play button, you'll hear both tracks play together. Because this adds the sounds together, the end result may become too loud and distorted. To fix this, turn down the -...+ gain sliders on each track until you see no clipping light on the Meter Toolbar. Use the L...R pan sliders to adjust the spatial position of each track in the mix. You can also use View > Mixer Board to display the controls for each track together in a separate window.

When you use File > Export..., the tracks will be automatically mixed to an audio file for use in other applications. If you want to mix tracks together explicitly before export, so that they are replaced with a single mixed track, select the tracks, then Tracks > Mix and Render.

Gale: link here to Mixing and move that to "Foundations", I think.

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Can I remove the vocals from a recording to make a Karaoke track?

This is only possible for certain stereo tracks. When the vocals are exactly the same on both stereo channels, you can remove them by “subtracting” one channel from the other. This works for recordings where the vocal track is mixed exactly in the center and stereo reverberation has not been added. See this tutorial: Vocal Removal and Isolation.

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Can I create Ringtones with Audacity?

See this tutorial in the Manual: Making Ringtones.

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Why do I see a lot of vertical red lines in the track I just recorded?

This happens when you have an oversaturated recording, where clipping has occurred, that is, the signal has exceeded the maximum allowed level. The vertical red lines show where clipping has happened. The clipping indicators can be turned on and off (Audacity's default setting is "off") by selecting View > Show Clipping.

See the Audacity Waveform page for more explanation of how the waveform is displayed.

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Can Audacity preview or apply effects live, in real time?

Audacity cannot yet apply effects in real time while you are previewing or recording. This is one of the most commonly asked for Feature Requests, but it requires substantial changes to Audacity to implement it. If you would like us to add your vote please either e-mail our feedback address or post on the Adding Features to Audacity section on the Audacity Forum.

Advanced users can apply effects to recordings in real time by applying the effects in a VST host and routing the effect output to be recorded by Audacity. See this Forum topic and ask on the Forum if you need any help.


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