nasty buzzing bug

forge wrote on 7/31/2008, 6:50 AM
this can be replicated (happens every time) and it is very annoying

if I enable Auto-ripple for all tracks, markers & regions then drag a few tracks along then hit the undo button then I get this horrible buzzing noise every time I press stop - if the project is playing it's ok, but hit stop and it buzzes - the only way to stop it is to restart Vegas

Vegas Pro 8b build 217

Win XP Pro 2002 SP3
HP pavillion dv2000
core2duo 1.73
2 GB RAM

working from external USB2.0 HD

Comments

Widetrack wrote on 7/31/2008, 8:44 AM
Does the buzzing occur regardless of where the time cursor sits?

It could be a small remnant of an audio file that's somehow looping.

Try successively muting your audio tracks while the buzzing is happening. if it stops when you mute a given track, there may be a gremlin on that track.

What audio interface do you use? Installing a new driver might have some effect.
TGS wrote on 7/31/2008, 10:24 AM
If nothing else works, see if there are new drivers for your soundcard.
Steve Mann wrote on 7/31/2008, 6:13 PM
If you have on-board audio and an audio card plugged in, you may have more than one audio driver installed.
forge wrote on 8/2/2008, 7:47 PM
thanks for the replies

Sorry, M-Audio FW410 - thought I put that but I put everything but, it seems!

this only happens in very specific circumstances - when I use UNDO after having used auto-ripple set to 'all tracks, markers, regions' - I have not seen it happen under any other circumstances

none of my other audio applications have this bug and M-audio have said that while their drivers work on SP3 the installer wont allow it to install so I can't re-install the driver - [edit: actually I think this may have been updated, maybe I'll give it a go)

it seems unlikely to me anyway TBH, it's pretty 'bug-like' behaviour because it is so specific and related to a very specific task, and it is pretty consistent to the point where I have to remember to turn off Auto-ripple before using undo - which is difficult as I am in such a habit of using ctrl+Z

cheers
forge wrote on 8/2/2008, 7:49 PM
>If you have on-board audio and an audio card plugged in, you may have more than one audio driver installed.

not sure what you mean here?

yes I have drivers for the 410 and the onboard card, but how would this affect Vegas if I have the 410 selected in the prefs?

Steve Mann wrote on 8/2/2008, 8:39 PM
"not sure what you mean here?

yes I have drivers for the 410 and the onboard card, but how would this affect Vegas if I have the 410 selected in the prefs? "


It doesn't affect Vegas, but if you aren't using the on-board audio, then turn it off in the BIOS setup and remove the driver using the Control Panel.

I have seen some really strange sounds, including buzzing when I move the mouse, coming from my speakers because of this exact condition. It almost sounded like a light saber. The faster I moved the mouse, the louder it got. It didn't happen all the time but only with a particular combination of programs running.

Also, any MOV file played back would have a horrible echo plus distortion until I removed the on-board audio driver.

farss wrote on 8/2/2008, 8:56 PM
In the spirit of double post tag I'll post this here as well :)

Is this a sound you're hearing in your monitors?
Is it actually in the rendered output?
Can you hear it in headphones plugged into your audio device?

I have exactly this kind of problem with my Behringer monitors. Nothing to do with the M-Audio Firewire 410 or Vegas or drivers etc.
What happens is when the CPU gets pushed hard and maybe the powers supply as well RFI is created and the speakers pick that up and I can hear a buzz. It is annoying and one day I'll find the energy to add some RF suppression to the monitors. I also have a pair of Lundahl isolation transformers on order, they too should fix the problem but they cost nearly as much as the speakers.

Bob.