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**egov** · 20 January 2001, 11:58

here's how the audio sounds:
http://members.nbci.com/worldwinner1/test.avi

**Anatoly Neverov** · 20 January 2001, 15:38

Write to Markus Zingg, the author of AVI_IO. I have similar (not the same!) problem capturing in DV format through firewire protocol. In my case the sound is like geared up. People speak like Mickey Mouse. Markus said that it is because my system drops frames during the capture, but AVI_IO doesn't show that the frames are dropped in DV format. I still have this problem and nothing can be done. Whereas if I capture in DV format with MediaStudio, VideoStudio, StudioDV, DVIO, VideoWave - everything is just perfect. He did explain me what happens, but for the moment he can't fix this bug.

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Anatoly Neverov
Minsk, Belarus

**Phire** · 20 January 2001, 17:04

Well i've done more research on the HuffyYUV problem i've been having, it seems to be audio related as well. Recently it seems that AVI_IO was dropping frames every 1 minute, it may not be time-related, it could be something the sound card is doing or a specific type of sound that comes into the card maybe? (I don't know much about sound cards). I tried everything known to stop the drops but nothing worked till I disabled the "Record Audio" function in AVI_IO. Only 5 frames were dropped in 2 hours in full resoultion and quality at best. Even if I changed the resoultion to 352x240 or changed the quality settings, it would make zero difference, same drops at same usually the times. I did have to disable 16-bit DMA support on this card and so that it only uses 1 DMA, if this was not done then I would get audio crackles. The sound card is currently using DMA 1 and IRQ 5, it is not sharing any IRQs with any devices, it is also only using 1 set of Input/Output ranges, if you check your system devices it's probably using 3 sets or more. I'm not sure as to what to do, somebody please help.

**egov** · 22 January 2001, 06:45

Somebody found a solution?

**Dr Mordrid** · 22 January 2001, 11:50

PCI audio, right??

PCI audio + high data rate captures = high PCI bandwidth

IF that bandwidth hits a critical level (variable depending on the system) where the mainboard can't handle it you first get audio dropouts then dropped video frames.

IF PCI audio is used then disable the legacy ISA emulation and all special effects in the drivers. If it's an SBLive! I suggest card-a-cide.

I have NO problems using a plain-Jane SB-AWE64 ISA card.

Dr. Mordrid

[This message has been edited by Dr Mordrid (edited 22 January 2001).]

**Nick Pappas** · 22 January 2001, 12:02

I use AVI_IO as well, but use the Matrox built in YUY2 capabilities and capture raw video.

A note on your drops... I get 1-2 drops a minute as well. I don't worry about, you probobly shouldn't eather.

Onto the audio... check the audio level in Windows.
- Double click on the speaker in your icon tray and select Options.
- In Options select Properties and then click on the Recording radio button and OK.

Make sure Line-In is selected and then play with the Audio level during a capture. Start a capture with the Audio high, then slowly lower it while still still capturing so you can get a comparison.

The levels differ from source to source. I have a Panasonic SVHS player that needs to be set all the way down (1 click above 0) and a Sony VCR that can go about mid-range before clipping.

Give that a shot. Hope it helps!

Nick

**egov** · 22 January 2001, 17:23

The sound card is ISA SOund Blaster AWE 64. Above I posted a sound sample. The sound is not distorted, it is chopped. The machine is pretty powerful PIII 800MHz, 256MB RAM, 40Gig ATA100 HardDrive.

**Anatoly Neverov** · 23 January 2001, 02:25

Try to capture with the same codec but any another tool(s). AMCAP, SmartCap, Vidcap32... If the problem persists - it is the bug of AVI_IO. Address to Markus Zingg, its author. If no - it is the problem of your system. Re-install it.

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Anatoly Neverov
Minsk, Belarus

**egov** · 23 January 2001, 06:59

I tried with VirtualDub -- the same effect.

**Anatoly Neverov** · 23 January 2001, 10:23

I would advice you to format your hard disc, make new partitions, and to re-install your system completely from zero. You have a nice machine which of course should work good. I had similar things this Summer - good reliable programs suddenly stopped to work or began to play pranks. Nobody understood what it was. Finally I re-installed the system, but that games still continued. When I formatted and re-decollated my HDD, that kinks disappeared forever. I suspect it was any kind of virus. Maybe you have any similar beastliness?

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Anatoly Neverov
Minsk, Belarus

**egov** · 23 January 2001, 11:09

I really don't know. I am tired of wasting time reformatting this machine over and over... I reformatted and partitioned the hard disk just 3 weeks ago. The top of all the Matrox MJPEG compression turned out to be so blocky that it is almost useless. Check this: http://server3002.freeyellow.com/statii/Untitled-2.jpg - it is like I scan my video from a low quality magazine. The hardware MJPEG was the reason to sell my All in Wonder and buy Matrox. Now it turns to be useless... I am so frustrated: it is already 4 months and I am not able to capture anything close to normal inspite of hours of reformatting, configuration, reading through newsgroups, talking to customer support ... I spent over $1000 to get my machine up to the max capacity just to be able to capture video. 4 months passed and I am still not able to... Using Matrox is more like hackery than enjoyment: hack the YUY2, edit registry, INI files, use some third party shareware codecs and software with questionable reliability.

**Anatoly Neverov** · 23 January 2001, 11:40

I agree that the software bundled with Matrox is not the best thing in the world, but it works! And, it gives VERY nice quality of capture and output. I had Miro DC10plus which in no one case can be called a garbage. I substituted it with Marvel g400TV and I testify: I lost nothing. In opposite: in my personal opinion, just visually, Marvel's capture/ output quality is better than the Miro's ones, and Matrox' mjpeg looks more natural and vivid than Pinnacle's one. I had some troubles with Marvel's drivers, but I did overcome them fast and easily. Now it works, and I have no compliants. One compliant I have - it doesn't understand Soviet SECAM, but it is an another song and has nothing to do with capture/ output.

I see only one way out: call any specialist. Maybe from the firm where you bought your hardware, or from any other computer firm. Or any computer fan-loner. We here have such boys, I am positive, you too. Promise him $100.00 if he makes your computer to work properly, if you can't do it yourself. Your machine should work. Maybe you should change the slots of your cards? Or to check your cords? Or to remove the dust from the processor? Or to shake the contacts of your HDD? Or to beat your system block 3 times from its left side? And so on. I suppose you have any very small mechanical damage which prevents your machine to work properly. Any contact which isn't reliable, or something like that.

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Anatoly Neverov
Minsk, Belarus

**egov** · 23 January 2001, 12:06

Thank you for the advice. I must admit that the Matrox TV output is better. I will try as a last attempt to change the motherboard.

**Anatoly Neverov** · 23 January 2001, 14:32

Be sure to buy ASUS motherboard. I insist in that. You'll see that I'm right if you take it. Remember my words!

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Anatoly Neverov
Minsk, Belarus

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Chopped audio with AVI_IO

Chopped audio with AVI_IO

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