2 audio signals, to delete one only

bill-kranz wrote on 9/20/2012, 10:28 PM
Hi all:

I have a VHS to DVD conversion that has a bunch of electric static, hums and burbs in it.
These awful noises are "separate" from the vocals on the audio track yet on the same track.
(Below the audience vocals...)

When I add a volume envelope to try to mute only that line of audio the points I add effect the
whole audio track sounds. So that will not work. I do not have a good audio suite to see how
I can improve my audio for this movie.

What should I do?

Thanks,
Bill

Comments

musicvid10 wrote on 9/20/2012, 11:55 PM
Bill,
Upload an example of what you are hearing.
If the "noise" is on the same track as the "audio." probably very little you can do . . .
Chienworks wrote on 9/21/2012, 5:25 AM
And what do you mean by "separate" and "2 audio signals". When you say they're on the same track that seems to contradict your description of them being separate.
JackW wrote on 9/21/2012, 2:06 PM
Just a guess but from your description it would appear that the audio was recorded on two channels -- right and left. I don't use Studio often but in Vegas Pro the channels can be separated: make a copy of the audio track, then make one instance the left channel, the other the right.

It looks like the static/hiss/noise is on the right channel track, which you should be able to lower in volume or mute altogether.

Jack
VideOccasions
D7K wrote on 9/21/2012, 5:16 PM
You can use soundforge if it is a stereo track and delete the left or right (which ever is bad) and copy the good track to the second. If its mixed sound on the same track you probably can't fix it.
richard-amirault wrote on 9/21/2012, 7:12 PM
As others have said .. your descripion of the problem is not clear to us.

I would guess that you have a stereo track with the vocals on the "upper" track and the noise on the "lower" track. Of course one of these is the right track and the other is the left side.

In Vegas you can right click on the audio track and choose CHANNELS from the menu. There you can tell Vegas to use either only the right track or the left track.

When you do this the noise OR the vocals will dissapear. If the vocals dissapear then just choose the other option. You will then have a monophonic (not stereo) track, but when you render your video Vegas will put the same sound on to both speakers.
bill-kranz wrote on 9/22/2012, 11:27 PM
Hey all thanks for this info.
Yes, I think there are 2 "Channels" present. I have never seen 2 complete audio wavelengths on one audio track before. So, once I get back to editing that video it sounds rather easy to mute or delete that channel.

I suppose the way Photobin recorded the ISO file from the VHS it gave me the 2 channels visible in the software view.

Thanks again!!
Will let you know what happens later here.

Bill
richard-amirault wrote on 9/23/2012, 8:43 PM
I have never seen 2 complete audio wavelengths on one audio track before.

That is just a normal STEREO track. You have seperate channels for the Left and Right .. so you have two waveforms. If there were only one waveform then the track would not be stereo, it would be monophonic.

Some VHS tapes were monophonic, some were stereophonic. It depends on how they were recorded.