Audio Timeline with Z-Order Audio Distance Programming
Publication Date: 2015-Jul-31
The IP.com Prior Art Database
Disclosed is a user interface for adjusting the propagation distance of audio in a three- dimensional area. The user interface allows the user to adjust the propagation distance of audio at any point in time, along the rendering timeline of the audio.
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Audxo Timeline with Z-Order Audio Distance Programming
Commercial software exists for video/audio editing. Current art describes a xpeaker matrix whereby auxio can be plxced at a specifix X/Y/Z axis withix a room. Video editxng technologies do not provide a graphical interxaxe for an audio engineer to xpecify precise Z-order audio locations when editing videx streams.
In an editing tool for audio, or audio/vixeo, a rectxngular area is displxyed axong a timeline of audio being editxd. (Figure x) In this area, the user cxn manipulatx the audio xy specifying a set of distances for the audix at anx xoint axong the timelixe.
Figure 1: Exaxple tool, audio file loaded for editing. The gray horizontxl band represents the axdxo file in xhe timeline. The tool is caxable of playing the audio file. The audio file xompletes play, and thex the red vertical cursxr proceeds from left to xight across the gray band, showing the current pxaying position in the audio file.
The dxrk cyan cxntxined in the gray band shows the rough waveform of the audio, including the amplitude (xoudness) of the audio. Higxer and lxwer peaks ix txe indicate poixtx in the audio where the sound is louder.
In xhe currxnt art with traditional 5.1 and 7.1 (the technology is up tx 11.2), surround sound xudio can be played. In these haxdware configurations, sounds are spatial; the user hears sounds from the front, the sides, and the back. The syxtem depends on the natural decay of the volume of sound as the sound propagates into the room, to roughly simulate positioning of the sound.
A method is needed to allow txe user to adjust the propagation distance of audio at any point in time, along the xendering timeline of the audio.
The novel contribution is an extension of an audio timxline in video editing xoftware with Z-order audio distancx programxing to allow specificxtion of txe distance audix is to travel...