Audio Editor – Single Track

Burli’s audio editor is fully integrated and was designed from the ground up for use in a broadcast newsroom. Features include strobe play for fine editing, multiple levels of zoom, undo, edit preview and much more.

The audio editor

The editor includes, from bottom to top, a green-on-black wave graph, a time bar showing minutes and seconds, a marker bar for adding reference points within the graph, and an editing toolbar. The green dot in the time bar shows the point at which audio playback would start if the user pressed the remote control ‘Audio Play’ button. If an audio selection exists, Burli remote-plays the selection; if no selection exists, the green dot appears at the beginning of the audio graph, indicating that Burli will remote-play the entire wave file. Burli displays the total length of the audio file (total = 0:05.6), and if present, the length of the current selection (sel = 0:01.6).

Editor controls

For most functions there is both a mouse and a keyboard control. Some functions can also be started remotely of your installation includes remote editor controls.

Play audio

Click the toolbar’s play button to begin playback at the beginning of the audio file. A vertical bar moves across the audio graph to indicate the current play position. Click the right mouse button anywhere in the wave graph to start playback from that point. A green timer (bottom-right corner of the Burli screen) counts down the remaining audio, and turns yellow when less than five seconds remain. If you click on the green timer, it will turn blue and count up instead.

To stop audio playback or recording

Press the F10 key, or click the stop icon in the toolbar. If a wave graph is not currently visible, you can stop audio playback and recording by clicking the stop button in the main Burli toolbar (left-hand side of the screen).

To rewind audio playback

As audio plays, you can rewind about 1.5 seconds by pressing the F11 key. Hold down the F11 key to rewind quickly.

To advance audio playback

As audio plays, you can advance about 1.5 seconds by pressing the F12 key. Hold down the F12 key to advance quickly.

To control audio playback while editing a story (e.g. transcribing)

The F9 (play), F10 (stop), F11 (rewind), and F12 (advance) keys are functional even when the currently playing audio file’s wave graph is not displayed. To transcribe audio recorded with Burli, start playing the audio file, return to your newscast script, create a new text item (Insert), then use the F9 through F12 keys to control audio playback as you transcribe.

To select audio

Selected audio appears with a white background (see the middle of the audio graph, above), and is used to isolate usable audio cuts, delete unwanted audio, etc. Move the mouse pointer over the audio graph, then hold down the left mouse button as you move the mouse to another location in the graph. As you move the mouse, Burli displays the resulting selection. Release the left mouse button to complete the selection.

To refine an audio selection

Move the mouse pointer over the beginning or ending boundary of an audio selection. When the cursor changes to a sideways sizing icon, hold down the left mouse button as you drag the mouse to the new position. As you move the mouse, Burli resizes the selection and strobe-plays the audio at the current mouse position. Zoom the selection to refine it with greater precision.
 To audition portions of an audio selection Burli’s wave toolbar provides four buttons for auditioning selected audio. The ‘audition selection’ button plays the entire selection; the ‘audition selection start’ plays the first 1.5 seconds of the selection; the ‘audition selection end’ plays the last 1.5 seconds of the selection; the ‘audition delete selection’ button plays the 1.5 seconds preceding the selection, then plays the 1.5 seconds following the selection — this button is useful for auditioning an audio file as it would sound if the selection was deleted.

To deselect audio

Click and release the left mouse button in a section of the audio graph that is currently not selected. The white selection disappears.

Simple zoom an audio selection

The zoom feature is useful for close, detailed editing within a selection. Begin by selecting some audio, then click the zoom button to view an expanded graph of the selected audio. Click the zoom button a second time to return to a full-width view of the audio file.

Multiple zoom an audio selection

Begin by selecting some audio, then press the F5 key to view the selection more closely. Press F5 again to zoom in another step. For most audio 4 or 5 levels of zoom are possible before the wave form becomes unusable. MP2 audio waveforms may have fewer levels of zoom due to the limitations of MPEG frame size. The F6 key zooms out.

To delete an audio selection

Click the wave toolbar’s ‘audio delete’ button (scissors icon) to delete the selected audio. After deleting the audio, Burli rebuilds the audio graph – placing a blue marker in the file to indicate the edit – and replays a few seconds of audio around the deletion so you can hear the edit.

To undo an edit

Click the blue undo (backwards arrow) button on the toolbar. Edits can be undone one at a time in the order they were made, right back to the original file. There is no redo function.

To delete an entire audio file

Right-click the audio slug line and choose the Delete menu option. The item is sent to the recycle bin and then deleted entirely after the recycle bin expiry time. By default this is 3 hours.

To undelete and entire audio file

If the file was deleted within the last few hours it can be rescued from the recycle bin.

To add a marker

Click and hold down the left mouse button in the wave editor’s gray marker bar (above the time scale). Drag the mouse left and right; Burli strobe-plays the audio at the current mouse position to assist marker positioning. Release the left mouse button to set the marker at the current position.

To reposition an existing marker

Drag-and-drop the marker’s head (in the marker bar).

To remove a marker

Drag-and-drop the marker’s head (in the marker bar) away from the wave graph. When the marker disappears from the wave graph, release the left mouse button.

To move audio within a file

Burli supports drag-and-drop audio editing. To move a chunk of audio to another location in the same file, begin by creating a selection (discussed earlier), then click and hold down the left mouse button somewhere within the selected audio. Drag the mouse to a position inside the wave graph but outside the selection. As you move the mouse, Burli strobe-plays the audio at the current mouse position to help you locate a drop position. When you are ready to move the audio, release the left mouse button. Burli prompts you to verify the audio move.

To copy an audio selection to a new file

Create an audio selection, then drag it to any position in the bottom window’s slug list (typically belonging to a local folder). Burli creates a new slug line with a copy of the audio.

Recording Audio

To begin recording audio at any time you can, press Ctrl-R on the keyboard, click the record button in Burli’s main toolbar, or (if applicable) press the remote control device’s record button. Burli always records audio to a new file — to combine new audio with existing audio, use Burli’s Wave Wizard after recording the new audio. Burli always records audio into a local folder. If a local folder is not currently selected in the bottom window, Burli places the new audio in the always-present ‘Work’ local folder in the bottom window. When recording starts, Burli places the keyboard focus in the wave toolbar’s title window so that you can immediately title the new audio. As recording continues, the user can resume newscast preparation, wire perusing, or any other task. A red recording timer (bottom-right corner of the screen) displays the elapsed recording time. Recording continues until the user presses F10, clicks the stop button in either the main toolbar or editing toolbar, or (if applicable) presses the remote control button. To cancel the current recording.
Click the ‘Record Cancel’ button in Burli’s main toolbar, or press the remote control device’s cancel button, if applicable. This feature stops recording, deletes the file, and removes the slug line that was created for the cancelled file. This feature is useful for erasing false takes and unusable audio.

To record a series of files without stopping

You can start recording to a new file even if Burli is currently playing or recording audio. Every time you start recording, Burli creates a new slug line with the current time in the current local folder.

To add markers while recording audio

Press the keyboard’s F8 key to add a marker at the current position during recording. When recording is finished, Burli will display a marker at each point in the recording where the user pressed F8.

To add markers while playing audio

As a wave file is playing, press the keyboard’s F8 key to add a marker. If the currently playing audio file’s graph is visible, Burli immediately displays the marker.

To combine two or more separately recorded pieces of audio

Use Burli’s Wave Wizard. (CTRL-W)

To rename an audio clip

You can change the description of audio files stored in local and network folders — audio residing in the In queue cannot be renamed. Click the mouse in the wave toolbar’s edit box (displaying the current description). As you change the wave description, Burli updates the description in the slug list.

To create a full-screen audio editing workbench

Click the always-present Work tabs in both top and bottom windows. All four quadrants of the Burli screen are now valid drag-and-drop targets for audio. You can then drag an audio slug or audio selection from the top window and drop it in the bottom window’s slug list or anywhere in an audio graph in the bottom window. In the latter case, Burli strobe-plays the target audio at the current drag position so that you can accurately locate a drop position; once dropped, the audio appears selected in the target file, giving you an opportunity to undo the insert by clicking the delete audio button.

To view a clip’s format, bitrate or sample rate information 

Right-click on the slug of the audio item. Full file name, format and size information is displayed.

Audio locations

Burli stores audio in three primary locations, as noted in the following table:


Local folder

Network folder


Newswire audio feeds

Unedited audio

Audio features, archived audio, sound fx library









Deleted automatically




Audio in the In queue: Newsfeed audio and other auto-captured audio files appear in the In queue. Normally one Burli machine is responsible for purging old audio after a user-specified time (see the audio capture page).
Audio in network folders: Audio such as in-house features and archived audio is stored in network folders, where it remains available to all networked users until explicitly deleted. If a newsfeed audio clip is required for longer than its usual shelf life (typically 6 to 12 hours), drag-and-drop it into a network folder.
Audio in local folders: Audio recorded by a user is always stored first in a local folder, where the user can edit or delete it. To share a locally recorded audio file with all Burli users, drag-and-drop it to the In queue. Burli prompts you to finalize the slug line, then copies the audio to the In queue, where the copy is subject to auto-deletion. If the locally recorded audio must be shared on the network but requires a longer shelf life, drag-and-drop it into a network folder, where it will remain until explicitly deleted.

Including an audio clip in a newscast

Suppose you want to play a audio clip in your news bulletin. Locate the audio schedule in the in-queue, then drag-and-drop the schedule to the script’s slug list in the bottom pane. Next, locate the audio in the in-queue, select (described earlier) the desired audio clip, then drag-and-drop the audio cut to the first available clip button in the story’s toolbar in the bottom window. Burli creates a copy of the audio that will always accompany the associated story. Alternatively, you can right-click on the audio clip slug and chose Build Text + Audio story.

To remove the clip, right-click it, then choose the Delete menu option.