Consistent audio problem on CF card imported M2Ts

jeff-beardall wrote on 10/28/2009, 1:27 PM

Hi All:

I use a number of Sony Z7 cams for multicam shooting. We use Kingston Elite Pro 32gb cards and capture 24p HDV to these cards. After ingesting the cards to Vegas 9.0c (or b) and adding the clips to the timeline, the audio will often have huge missing chunks and no audio during these missing parts. Video is fine. The M2Ts' audio plays back fine in both VLC and WMP. Re-ingesting the cards often solves the problem, but this is a huge time-waster for me. These same files with 'missing audio' also playback fine in Final Cut after a re-wrap.
Any ideas? Any others with this problem. I've seen it across 22 different CF cards (all new) and 5 Sony Z7 cams.

Comments

Tom Pauncz wrote on 10/28/2009, 3:25 PM

Probably not what you want to hear, but I use CF cards with my S270. I have only ever used SanDisk ExtremeIII 16GB and 32 GB cards and have never seen the problem of which speak.

Could there be an ingest glitch with those cards perhaps on that particular PC?

Tom

Laurence wrote on 10/28/2009, 3:41 PM

The Kingston Memory cards I have tried in the past weren't fast enough for the Z7 even though they were rated at 133x and should have been. Much less expensive Transcend 133x cards work fine. This really bothered me because my last name is Kingston. I ended up finding a testing program (I can't remember which one though) and comparing the Kingston Memory to the Transcend. The Transcend 133X CF cards tested substantially faster. Bad news in that I had already bought the Kingston Memory cards. Good news in that I wanted to buy more. I ended up giving the Kingston Memory CF cards to my niece to use with her DSLR camera.

jeff-beardall wrote on 10/28/2009, 4:18 PM

Thanks guys! It may be the card speed...it seems to be random across different cards and pcs...the strange thing is the same card will ingest with audio problems and then on re-ingest, will be fine...also final cut brings them in fine...i'm thinking vegas has a tough time with the data stream if there is anything slightly dodgy in it. I'll check out the transcend cards...tom, do you get your sandisks in toronto?
thanks again.

Tom Pauncz wrote on 10/28/2009, 5:01 PM

Actually I didn't.

I bought the two 16GB and one 32GB cards in Munich, Germany and the other 32GB I bought at B&H in NYC.

I should add that these are 30MB/sec and 200x according to the box.

The only reason for not buying in TO was the price.

Tom

UlfLaursen wrote on 10/28/2009, 10:50 PM

I just bought the Focus Enhancement FSH-200, and in the manual they only mention the SanDisk Extreme III 16 and 32 GB cards as compatible. I only use SanDisk for my videocams - I think they are the best. :-)

/Ulf

FilmingPhotoGuy wrote on 10/28/2009, 11:36 PM

When looking for an SDHC card I was told to buy a "Class 6" or higher because of high write speeds. The Compact Flash cards are labeled 133X or 266X which I use for my still camera. Do those numbers represent read or write speeds?