Hi ritsmer,
I am observing different distortions, that I am not cert-en if same bug is responsible or not. I think you have as match right for this thread as I do. The mutating of audio is the thread. The more people going expose this, the closer sony going to be to spend on testing, fixing, or sales going to drop. After all the audio is the most important silent part of the film. We need that to be proud using sony vegas pro, or we all go for adobe.

Dear PeterWright,
I do love 24 bit sound. Are you telling me that I made mistake upgrading to pro version, the wander-fool 24 bit audio version. Is that what is selling pro version?

Start testing, and I can help as my time permits.
If you have case of audio problems, tell as.

You are misunderstanding me bogdan, either deliberately or because of language differences.

24 bit sound is hardly the main reason people use the pro version. There are so many other reasons. I've been using the pro version for more than 8 years and probably used 24 bit audio two or three times in that time.

All I was asking you was to pay attention to all the variable factors here. If you change hard drives, that may help you to determine whether a particular hard drive is the possible cause of your problems.

Similarly, if you tried 16 bit and things were okay, that would help you identify another factor which may contribute to the situation.

I don't have the problem - you do - and maybe my suggestions will help you to track down the cause.

@sonyPCH:
Peter - wanting not to hijack bogdans thread I have made a new thread about another severe audio problem - and with a much clearer example. Pls. see:

http://www.sonycreativesoftware.com/forums/ShowMessage.asp?MessageID=771123&Replies=0

@bogdan:

What is the format of the media? Wave? MP3?

If you take a simple wave file, and put it on the timeline, does the problem persist?

Peter

NVIDIA NVS 5100M doesn't sound like audio hardware and if you are using some on board crap I would not be surprised if you're having problems. I have never had any audio problems with USB drives and I use Vegas mostly for audio.

Use the USB drive that works and trash the other one. This problem has nothing to do with Vegas.

PS: If you really are using that laptop's on board audio chip instead of a real audio interface you should get something decent ( that laptop is good, but you need a real audio interface too ) . Avid for example, will laugh at you and won't even install on most machines unless it detects what it considers a real audio interface/card.

Dear SonyPCH
I posted in previous messages:
The audio is uncompressed 24 bit 48k/sec
The file format is .wav produced by zoom H4n, about 5 minutes long.
I do not use mp3., only uncompressed audio format.

I will make sample of audio for testing ( no private data) so I send you then.
The audio distortion is exactly like on the ritsmer video.


http://www.sonycreativesoftware.com/forums/ShowMessage.asp?MessageID=771123&Replies=0


I think we tracking the same bug.
P.S.
Regarding mp3 format:
I do not use losy compressed audio as source to my video. If you intend to have good audio in your video, you have to start with good quality audio.
Audio is the part the most not professional video makers not care for. The not so trivial part of overall experience.

Dear deusx

Yes Yes, and you have experience in bug tracking, I can tell.

Basic of BUG (BUG BUG try to remember the word) tracking.

Identify anomaly.
Use source code of the suspected program and debugging tools to find the specific bug.

Have you tracked one in your live.
If not use common sense to help identify situation where bug manifest repeatedly.
This is considered by programers very easy situation. The difficult one is when you have bug manifesting only sporadically, and you cant find the persistent bug manifestation.
Happy bug tracking.
Avoiding live is the other people domain.

Yes, I track bugs every day.

You didn't answer the most important question. Do you even use a real audio interface or rely on machine's on-board audio?

Since you do have a USB drive that works, use it and forget about the one that doesn't. It's not complicated. If you think you can move to Adobe or Avid, go ahead. It's very likely that you won't even be able to install Avid on that machine if you're using the on-board audio.

@deusx: On my machine (a Mac Pro, 2 x quad Xeons, Win7 64 bit without Bootcamp etc - just natively installed) I can repeat a similiar (or the same?) error no matter which of my audio outputs I use - and also when I render the video and play it via DLNA on my plasma - so the issue is hardly audio interface related.
Seen from a bug-fixers point of view the issue is quite funny: In my thread I have found that you can put an audioclip onto the TL and it plays well. Then you can edit the project happily for days - and the clips audio is still fine. Then suddenly -out of nothing- the issue pops up and the audio becomes random bursts of noise. Then you can copy and paste the same audioclip to a place later on the same track TL - and there the same clip just plays fine...

@bogdan: pls try to unclick "Enable track buffering" as described in my thread and post the result.

OK, PROBLEM SOLVED. I had the exact same issues. My set is a powerful Gatewya FX computer with 16 MB RAM, i7 at 2.8 with 2 External Hard drives, a WD 1 Tb with eSATA and FireWire and USB connection. A good unit - but only had it hooked up on USB. I stored my photographs and other stuff on it - NO Audio or HD filming.

External HD #2 is a Costco 3 Tb with USB only. I put all of my audio and HD filming on it from my Canon 5D and Sony Z5. This one constantly shuts down to "save" energy - ya right - maybe $3 a year. Pain in the ass.

When I ran Vegas with a simple project, and added a thunderclap, I got 2 secs of thunder, 2 secs of nothing or junk white noise or a mutant of other stuff on the time line, 2 secs of thunder but not good quality, 2 secs of junk. this cycle went on for a minute making hte recording useless.

It turns out that the USB is very slow and cannot transfer the audio and HD signals toghether and thus sends it out in chunks - the pipeline is too small. My buddy film maker said the same thing - get internal or eSATA drives. DO NOT USE USB under any circumstance.

I went out and bought an internal 2 Tb WD, transferred all the data to that and cleaned up and organized my files. I got an eSATA cable for the 1 TB external drive. When I do a project, NO internet or other programs running.

Now the sound is perfect, clean and right there. Have only Vegas running - nothing else. Problem solved.

Dave

i have a wd 3tb too. i use it for backup only, i use internal drives for source and render audio and video.

i believe the problem is on the microsoft side - the conversion that allows this usb3 drive to work on a usb2 system is not sufficient for audio (or video).

started a new thread instead of posting to this one