I'm in quite a jam, trying to get a project out the door ASAP that I've been working on at various stages for weeks. This is my first project with Vegas, so it is the first time I've done renders longer than a few seconds for testing purposes.
Because the project is so long (2.5 hour recital with 3 cameras), I split it up in sections with the intent of rendering out one section when fully edited, deleting the associated media for the underlying Vegas project, and moving to the next section, assembling the 4-5 rendered sections at the end for the final result.
It was during playback of the first completely rendered section (brought into a blank, brand new Vegas project for that purpose) that I noticed audio clicks and pops SUDDENLY appearing. Each time I heard one, I immediately replayed the section several times to make sure it wasn't a realtime playback problem, and each replay revealed the pop to be in exactly the same place with exactly the same character, i.e., was now part of the rendered file. This was also verified by taking the rendered AVI into Premiere and playing back through DVStorm, comparing to my notes about where the pops were observed in Vegas playback.
I know from endless playback of the underlying media files in the Vegas project from which the renders were taken that there were NO audio anomalies in the component media files or even in the initial audio previews. The project included several tracks at standard DV audio spec (though rarely playing together) with some noise reduction and EQ and occasional inclusion of 44.1 audio from a music track.
The clicks occur randomly throughout the 13-minute render, some in places where there were a couple of active audio tracks, others in places where there was only one active audio track. All were observed in passages with voice over or speech where "space" and volume level permitted obseration. The clicks, if present during sections where the music track was playing alone at full volume, must be masked. So it's definitely not a sample rate conversion issue.
I can't for the life of me think of any reason why Vegas is adding these pops during RENDERING -- a non-realtime, software process of assembling and mixing all the elements at best quality -- or why previewed audio with all its realtime stressors and chores doesn't exhibit this problem.
Any help much appreciated.
Elizabeth Lowrey
Amore Productions
Because the project is so long (2.5 hour recital with 3 cameras), I split it up in sections with the intent of rendering out one section when fully edited, deleting the associated media for the underlying Vegas project, and moving to the next section, assembling the 4-5 rendered sections at the end for the final result.
It was during playback of the first completely rendered section (brought into a blank, brand new Vegas project for that purpose) that I noticed audio clicks and pops SUDDENLY appearing. Each time I heard one, I immediately replayed the section several times to make sure it wasn't a realtime playback problem, and each replay revealed the pop to be in exactly the same place with exactly the same character, i.e., was now part of the rendered file. This was also verified by taking the rendered AVI into Premiere and playing back through DVStorm, comparing to my notes about where the pops were observed in Vegas playback.
I know from endless playback of the underlying media files in the Vegas project from which the renders were taken that there were NO audio anomalies in the component media files or even in the initial audio previews. The project included several tracks at standard DV audio spec (though rarely playing together) with some noise reduction and EQ and occasional inclusion of 44.1 audio from a music track.
The clicks occur randomly throughout the 13-minute render, some in places where there were a couple of active audio tracks, others in places where there was only one active audio track. All were observed in passages with voice over or speech where "space" and volume level permitted obseration. The clicks, if present during sections where the music track was playing alone at full volume, must be masked. So it's definitely not a sample rate conversion issue.
I can't for the life of me think of any reason why Vegas is adding these pops during RENDERING -- a non-realtime, software process of assembling and mixing all the elements at best quality -- or why previewed audio with all its realtime stressors and chores doesn't exhibit this problem.
Any help much appreciated.
Elizabeth Lowrey
Amore Productions