acoustic labs audio editor
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This section describes the editing features of the Acoustic Labs Audio Editor in detail. The Audio Editor can be used to perform precise editing on audio data. Editing features that are discussed in this section include the cut, copy, paste and delete operations of audio as well as editing tag information for audio formats which support it. Much of the information in this section expects that the user is familiar with the waveform navigating techniques of highlighting audio and using markers. These topics are covered in Section 3: The Audio Editor Interface in Detail.

Topics
  • General Overview of the Editing Operations
  • Editing Boundaries: Highlighted Sections and Markers
  • The Cut, Copy and Delete Operations
  • The Paste Insert, Paste Over and Mix Paste Operations
  • Editing Tag Information




  • General Overview of the Editing Operations Audio Editor Edit Menu

    Whenever creating or polishing any sort of audio production the topic of editing audio waveforms will be something of concern. The most common editing features allow the user to cut, copy and paste various sections of audio. The Acoustic Labs Audio Editor fully supports these features which can be accessed via the pull down menu system by selecting the "Edit" pull down menu. To the right is a visual aid that shows the "Edit" pull down menu activated and displays the various editing features available. The following topics in this section discuss, in full detail, these editing options.










    Editing Boundaries: Highlighting Sections and Markers

    When editing audio with the Acoustic Labs Audio Editor or applying any of the tools or effects available you always have the options of performing the operation on three different selections: the highlighted section, the section between markers and the entire audio waveform. When selecting a cut, copy, paste or delete operation you'll notice on the "Edit" pulldown menu there are two options for each editing feature. Each option allows for either using the highlighted section (or the tracking bar) to apply the edit operation or the ability to use markers to apply the operation. To learn more about how to highlight a section of audio please see Section 3.2: Highlighting a Waveform Section. For more information on using markers please see Section 3.4: Using Markers.



    The Cut, Copy and Delete Operations

    The most common editing features used when editing audio are the cut, copy and paste operations. When performing a cut operation the selected portion of audio will be removed from the track and placed on the audio clipboard. The audio clipboard is a section of audio that is stored in memory. You cannot view what is currently contained on the audio clipboard, however the audio clipboard will always contain the audio data from the previous cut or copy operation. When you initially start the Acoustic Labs Audio Editor the audio clipboard will be empty.

    There are two different ways to perform a cut operation. By highlighting a section of audio and selecting the "Cut Highlighted Section" option from the "Edit" pulldown menu the highlighted section of audio will be removed and copied to the audio clipboard. The second method of cutting audio from a project is to set begin and end marker positions within the waveform and select "Cut Between Markers" from the "Edit" pull down menu. This will remove the audio located between the two markers and place it on the audio clipboard. The "Delete" operation is identical to the "Cut" operation except that the selected region of audio is not stored on the audio clipboard. This makes deleting audio a bit faster of an operation than the "Cut" feature.

    The copy feature can be used to copy a selected section of audio. This copied audio section will be placed on the audio clipboard. The steps involved in copying a section of audio are similar to that of cutting a section of audio as described above. There are two different ways to perform the copy operation. By highlighting a section of audio and selecting the "Copy Highlighted Section" option from the "Edit" pull down menu the highlighted section of audio will be copied to the audio clipboard. The second method to copy audio contained in a project is to set begin and end marker positions within the waveform and select "Copy Between Markers" from the "Edit" pull down menu. This will copy the audio located between the two markers to the audio clipboard.



    The Paste Insert, Paste Over and Paste Mix Operations

    At anytime you can paste the contents of the audio clipboard to any position by using any one of the three paste operations. The three paste operations are "Paste Insert", "Paste Over" and "Paste Mix". When viewing the "Edit" pulldown menu, you will notice two different paste insert choices. The "Paste Insert at Tracking Bar" operation will insert the clipboard audio at the current position of the tracking bar. For more information on the tracking bar please see Section 3.1: Navigating Within the Audio Waveform. The other paste insert option is "Paste Insert at Begin Marker". This will insert the clipboard audio at the current position that the begin marker is located at. For more information on the begin marker please see Section 3.4: Using Markers.

    The "Paste Over" feature can be accessed from the "Edit" pulldown menu as well. The paste over feature works similarly to the paste insert feature except that instead of inserting, the clipboard audio will be placed over any existing audio - thus replacing it. As with the paste insert operation, selecting "Paste Over at Tracking Bar" will place the clipboard audio at the current position of the tracking bar. Selecting "Paste Over at Begin Marker" will paste the clipboard audio over existing audio starting at the current placement of the begin marker.

    Audio Editor - Mix Paste The final paste operation is the "Paste Mix" operation. This operation works similarly to the "Paste Over" operation except that instead of replacing the existing audio, it is mixed with the clipboard audio. When selecting this option a dialog box appears as shown to the right allowing you to choose the levels of the existing audio and the clipboard audio that will be pasted. This operation is very useful for crossfading two sections of audio as well.



    Editing Audio Tag Information

    Audio Editor MP3 Tag All of the compressed audio formats supported by the Acoustic Labs Audio Editor include tag information. The audio tag can include text information that explains the audio content of audio file. This information usually consists of a title, artist, album, track number, general description and various other key information that the user may wish to include to describe the audio file. To view or edit the tag information of the current audio file simply select "Edit Tag Info" from the "Edit" pulldown menu.