Mic audio sounds changed from Project to AVI

Michael Madigan wrote on 6/13/2005, 10:07 AM

Hello, starting out in using Sony Vegas 6 and so far been very pleased with the program.

My problem is that I'm working on a Vegas project in which I have used a small boom microphone to record audio of my subjects. When I place the individual AVI files into the project, everything sounds OK. However when I render the project into either an AVI or MPEG-2 file, it seems like there is some "popping" of the audio when the actors speak, it almost sounds like a faint bumping sound.

Been reducing the volume and changes some of the EQ settings but I'm stumped as to why it sounds OK in the project (which is composed of AVI files to begin with) but not quite the same in the finished rendered project.

I am using background music in some of the pieces, maybe this makes me here this "bumping". Or maybe I'm just being over sensitive.

Some ideas I had were to normalize the audio and adjust for there, and maybe turn down the bass some more.

Any thoughts would be greatly appreciated, I'm stumped!! Thanks for any help.

Comments

farss wrote on 6/14/2005, 3:26 AM

First and most obvious thing to check is if you've managed to clip your audio. Drop the rendered file into a new project and have a look at the wavform where you hear these unwanted sounds. If the peaks have flat tops then you've managed to clip the audio.
If that's the case you'll need to drop the levels down, probably of the speech but I;d bet you've wound them up becuase they're too hard to hear. Simplest way to approach this is to add compression to the speech track in your original mix.
If that's not your problem it might be due to popping of the mic, unusual with a mic that's far away from the mouth but it can happen. There's a template in the Multiband Dynamics FX, "Remove Plosives" from memory that'll help get rid of this.
Bob.

Michael Madigan wrote on 6/20/2005, 5:29 PM

Thanks for the tip, the audio wasn't clipped, but that is definitely a good thing to watch out for. Figured out a work-around solution by adding in audio envelopes that will fade in and out at the appropriate times, plus adding in some sound filters.