best way to keep volume level constant. Normalise?

howardnwhite wrote on 3/11/2012, 9:35 AM
Okay, I am new to vegas, and must apologise for talking about Adobe Premiere in this request. I realise this is a Vegas forum, and I am only talking about Premiere to describe what I have been doing in the past, so as to get assistance in how best to achieve it in Vegas. Hope that is acceptable. Here goes.... I film stage plays, where there can be a lot of variation in volume. I record with an external mic in front of the stage. With premiere, I would chop up the audio track into the louder parts and the quieter parts, and then normalise each segment. Then a crossfade on all the joins so it sounded smooth. This normalise feature in premiere is not that good. It doesnt do anything as intelligent as make the louder parts a bit quiter AND the quiter parts a bit louder. It just takes the loudest bit it can find and reduce everything just so that bit is an acceptable level. So an actor shouting one word would be fine but the rest would then be inaudible. That is why all the chopping up needs doing. Is there a similar feature in Vegas, and if so where do I find it and is it easy to use? All I have found so far is that the audio track is automatically normalised. Maybe it is normalised in a better way on the whole clip with Vegas and my adjustments wont be so necessary, but that might be too good to be true!Perhaps someone could explain what is best for me here. Also, I cannot find a crossfade. Is there one? Yes I can fade audio clips up and down at the end, but that would mean moving an adjoining clip down a level, extending it to overlap the first one, fading the top one down and fading the bottom one up at the overlap. Same result,, but more time consuming than just slapping a crossfade over the joins. I am new to this, sorry my jargon is simple. I have been doing this job for about five years, but tend to only know about the parts that I need, that is why I come accross as not very tek-savvy!!! I need to clarify a few things to know that is worth me moving to Vegas. The reason for this is because I will need to start doing HiDef sooner or later, and there is no way I can afford brand new Adobe software! So it will be Vegas or staying Standard def. The other point is that the human ear is very good at adjusting to live souinds, but not so good with a speaker. If I did not make these adjustments, my customers would be constantly twiddling the volume up and down whilst watching their DVD! So this is probably the most tricky part of my job. It can be up to ten cuts in one minute of the audio, for a play that is up to two hours long! So I hope you get the drift! Thanks very much. Any help aprreciated, but plain English preferred. Thanks in anticipation.

Comments

Chienworks wrote on 3/11/2012, 11:32 AM
Audio is not automatically normalized.

Normalization is really only good for bringing clips that are overall very quiet up to a usable level. It's not to be used for volume matching. You probably want some sort of compression which lets you bring up quieter parts while reducing louder parts for an overall more consistent dynamic. Easier yet, though not quite as delicate is wave hammer. These are under the Effects menu. If you have a lot of large volume swings then wave hammer may be the most practical solution.

You can also Insert / Envelope / Volume to create a controllable volume envelop throughout the entire audio track. A thin blue line appears through the middle of the track. Double-click on it to add control points and move these points up and down to adjust volume from one point to the next. This is much smoother than splitting the event to adjust each piece individually.

Crossfades are easiest performed by simply overlapping two events on the same track. This is the "Vegas" way. Vegas also has a little helper tool shortcut for two clips that are butted together. Place the cursor at the join and press the \ key. Each event will be extended slightly into the other and the overlap will become a crossfade.
howardnwhite wrote on 3/11/2012, 12:02 PM
Chienworks, that is really helpful. Thanks a lot! The envelope thing sounds especially good. That will allow me to do more or less what I was doing before, possibly even more quickly. I did not expect that! I have LOADS more to ask, but I think this was all for the audio area. Thanks again
Geoff_Wood wrote on 3/11/2012, 10:11 PM
Also WAVES have a plugin called Vocal Rider, which adjusts the signal level automatically to a preset level, in an manner optimised for vocals.

Unfortunately for all methods, if the signal level is low, background noise will rise with signal gained applied. A Noise Gate helps this, but the resulting silent gaps can sound even more unnatural.

geoff
rraud wrote on 3/12/2012, 7:49 PM
An addendum to the solid recommendations from my forum buddies Chien and Geoff. After getting the volume envelopes where you like them and rendering the audio track, there is a simple one-click stand-alone program called "Levelator", http://www.conversationsnetwork.org/levelator that may help level things out further if need be.. Not as good as the Waves Vocal Rider, but a lot cheaper.. free. Note: I am not sure if the Levelator would cause any sync issues when laying back to video, nor do I personally use it, but I've tried it and it's good for folks without advanced audio compression skills.
JimMSG wrote on 5/3/2012, 3:45 PM
You might also try adding Wave Hammer as an effect. There is a preset called voice that works pretty well for what you are talking about. May have to tinker with it a bit to get it the way you want it. Btw, that is a 32-bit effect, so if you're using 64-bit Vegas, you'll only see Wave Hammer Surround. That's okay because it has a "Voice" preset as well.

Jim
musicvid10 wrote on 5/3/2012, 10:12 PM
If you're an experienced board operator:

1) Add a modest bit of compression, being sure to set your threshold off the floor. I too like Wave Hammer. Modest means =3:1<5:1.

2) Open the mixer console (which is an underappreciated Vegas Audio feature) and ride the gains just like you would on a live mix. Don't worry about late/early bumps, you can correct any and all after the fact. Just go with the flow. Reason: it's not "live."

3) Go through the timeline, and adjust the timing, gains, and slopes. Remember, you can undo and redo anything you don't like. Keep your eye on the master meter!

4) Save your project after every pass. Reason: Something you did earlier may actually be better than something you did later. My project saves during the audio editing phase typically number 12-20 for a 2-3 hour program.

Levelator is excellent for speech programs, but a bit dicey for music. Since 80% of my programs involve music, I generally avoid it.

Really, it's that simple. As long as you're an experienced board op.
;?)