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Forum: Old versions

Topic: Strange Video - Sound Issue - Baffled

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Hi,

Laptop Acer Gaming PC - 4GB Ram
VDJ Version 6.08
Asio Drivers Version 2.10 Beta 1
DAC III

I am getting a strange thing happening when playing videos in VDJ. It can be any type of video such as mpeg, vob, avi.
When I am starting my gig I do a sound check and after about 5 mins the sound distorts. I solve this by going to the performance tab and uncheck the safe mode. This returns the audio to how it should sound. However after 5 mins the sound distorts again, so again I return to the perfomance tab and this time check the safe mode option. This restores the sound and it remains that way all night.

If I leave the settings as is for next time, I have to go through the same routine to get the soiund correct.

While this is not a problem if time allows for a 10 min sound check, If not it sounds bad in front of an audiance.

I have checked my latency and it all seems ok - I have no updates running, no wifi, network etc. In fact I disable everything that I can.

I'm confused to say the least!

Any help/guidance appreciated.

Thank you
 
Inviato Tue 25 May 10 @ 3:01 am
What happens if you use the WDM drivers instead of the ASIO? (Or you using Timecode?)

what are you using the ASIO drivers on? (what soundcard?)
 
VIP DISCO & KARAOKE wrote :
Asio Drivers Version 2.10 Beta 1


This might be the result of using a beta ASIO driver that still has bugs/issues?

What sound card are you using? Try using the latest stable drivers for it.

Low latency ASIO isn't so important if you are not scratching, so you might be better off using WDM (Standard Windows audio) if your sound card supports it.
 
Hi,

Thank you for your comments.

The soundcard is an internal Nvidia Geforce 8600M GS.

After tweaking about I think I have finally got it to a reasonable latency level uing ASIO Drivers.

First I tackled the ASIO BETA driver:

I downgraded the ASIO driver down to 2.9 (the beta IMHO was the culprit)
turned off any unwanted devices in the device manager
Stopped windows upadating itself automatically
removed any unwanted effects from VDJ

Tweaked the ASIO settings while monitoring with DPC Latency Checker

Final settings I arrived at are:

Buffer Size 1024 samples
Latency Compensation = 256 samples
Always resample 44.1kHz <-> 48khz (ticked)

In VDJ I just opted for "Auto" in the perfomance settings.

I am now getting latencey between 285 us and 678 us

Then secondly I then decided to Drive the soundcards differently

I changed soundcard output settings to use 2 cards and set both the outputs to use the USB Audio codec x 2 (I have a usb Ciitronic Mixer CDM10:4 internal soundcard - 2 inputs) and the latency dropped down to 180 us and peaked at 300us. The cpu usage dropped to an insane 1%.

I didn't realise you could drive the mixer this way. I'm assumming this is ok?

So I have been running this for the last four hours without issue.

I spent 6 hours on this and it is so easy to get hung up on it, but I guess it you want the sound to be the best you can get.
 
VIP DISCO & KARAOKE wrote :
The soundcard is an internal Nvidia Geforce 8600M GS.


Ummm... isnt that a video card?

Quote :
I have a usb Ciitronic Mixer CDM10:4 internal soundcard - 2 inputs

never heard of that either??
 
VIP DISCO & KARAOKE wrote :
First I tackled the ASIO BETA driver:


It sounds like you were using ASIO4ALL - This is a software ASIO emulator and does not provide true low latency ASIO audio. True low latency ASIO is only possible if the manufacturer of your sound card provides proper ASIO drivers for it.

VIP DISCO & KARAOKE wrote :
I changed soundcard output settings to use 2 cards and set both the outputs to use the USB Audio codec x 2 (I have a usb Ciitronic Mixer CDM10:4 internal soundcard - 2 inputs)


This means that you are using standard Windows WDM audio. This is normal for most non-ASIO sound cards, such as the USB sound cards built into some mixers.

Low latency ASIO is only really essential if you are scratching and/or using timecode vinyl or CD's.
 
Hi, yes thanks for the confirmation about the drivers.

I wasn't aware that ASIO4ALL is an emulator.

Using the stand windows WDM audio certainly cured my woes - I played a six hour gig using this method and my system wasn't stressed at all - it sounded perfect to me, no cracks, pops, whistles etc. I don't think the Citronic mixer has it's own drivers, but I will check with the manufacturer.

Thanks again you have all been helpful as always.

[Please don't quote the post right before your message - This is unnecessary, makes the thread longer to read and adds nothing to the conversation.]
 


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