HTML5 Audio
You need to have the content editor open. To access the editor for a planning activity, go to the activity's detailed view and click Quick Actions > Edit general element info. For a timeline, open the Timeline Context Menu and click Details. The Edit Timeline dialog box opens.
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In the editor, position your cursor where you want to insert the audio file.
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Click the
 icon. - 
                                                
The HTML5 audio dialog box appears.
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Click Browse....
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Another dialog box appears:
The top list shows the activity's attachments. Note that the files can be of different formats, including documents, vector graphics, etc.
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If you don't see the audio file you need in the existing attachments list, upload a new file by dragging and dropping it into the lower left area.
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The audio file is uploaded and added to the attachment list.
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In the attachment list, click the button next to the audio file you want to include.
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The audio is included in the preview in the HTML5 audio dialog box.
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Edit the properties of the audio file. Refer to the following sections for detailed information.
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Click .
 
The audio file has been added to the editor.
You can access the following properties in the HTML5 audio dialog box on the Audio infos tab:
| 
                                                                 Function  | 
                                                            
                                                                 Description  | 
                                                        
|---|---|
| 
                                                                 Orientation  | 
                                                            
                                                                 Select the alignment of the audio player in the display: 
  | 
                                                        
You can access the following properties on the Advanced tab:
| 
                                                                 Function  | 
                                                            
                                                                 Description  | 
                                                        
|---|---|
| 
                                                                 Autoplay?  | 
                                                            
                                                                 Select whether the audio file plays automatically when you open the additional information.  |