popping sound when dialog starts

Ghost Tree wrote on 12/4/2011, 12:11 PM
I recorded some dramatic dialog with a Tascam DR100 and Oktave mic, on playback in the Vegas 10 timeline, as soon as the dialog starts there's a single static pop -- the noise floor (hiss) goes UP, and when the dialog stops there's another small pop and you can hear the noise level go down.
What's going on here? Can it be dealt with?

Comments

musicvid10 wrote on 12/4/2011, 12:16 PM
Sounds like some kind of noise gate.
Can you upload 60 seconds of audio somewhere?
Basic pop/click removal can be done in Sound Forge.
Geoff_Wood wrote on 12/4/2011, 2:37 PM
Octave microphone, or Oktava ? If it's an Oktava bought from anywhere other than a specialist Oktava dealer, it may just be that the mic is crappy - there was very bad QC at some point.

Sounds like an issue with the internal mic powering.

geoff
Ghost Tree wrote on 12/4/2011, 2:51 PM
it's a Oktava from Soundroom, they're reputable.
Here's the sample:
http://channelislandsvideo.com/contact.php
musicvid10 wrote on 12/4/2011, 3:55 PM
OK, got your contact page, but no file.
Ghost Tree wrote on 12/4/2011, 5:08 PM
Hi it's there, there's a little Quicktime control panel on the lower left.

Steven Myers wrote on 12/4/2011, 7:17 PM
The sample in no way resembles your description of the problem. No pops, no variation in noise floor.
musicvid10 wrote on 12/4/2011, 7:20 PM
I had to open it in IE to see the player.
I think a little click removal would take care of it. I have a tool in Sound Forge 7 that is pretty good with this type of transients.
Ghost Tree wrote on 12/4/2011, 7:48 PM
What tool in Sound Forge does that? I have sound forge 10. I think it's the LE.

Steven Myers wrote on 12/4/2011, 7:54 PM
musicvid, If you have an XP machine lying around, you can retrieve the .wav file from Docs & Settings/etc.etc./Temporary Internet Files. Look at that. There are no pops/clicks. The noise floor stays the same throughout. The only real problem with the recording is that the voice levels are too low.
Ghost Tree wrote on 12/4/2011, 9:51 PM
maybe cause the level is low, but if the volume is loud enough, you can hear a distinct "click/pop" right before the little girl's voice starts and ends. Like a switch or circuit has been activated by the sound.
Chienworks wrote on 12/5/2011, 7:38 AM
http://channelislandsvideo.com/popping.wav
rraud wrote on 12/5/2011, 11:17 AM
As MV stated, your description sounds like a Expander/Noise gate. Vegas inserts a noise gate into an audio channel's FX chain by default or reasons I fail to comprehend.
Was the demo clip rendered directly from the Vegas timeline?
Aside from the extreme low level, the loudest tick I hear is at 00:00:04:24,(30fps) and I can't hear (or see) any changes in the room-tone (BG ambient noise) like you describe.