Subject:SF is changing MOTU sample rate at startup

Posted by: ingvarai

Date:7/5/2011 2:38:32 PM

I have one problem, and that is Sony Sound Forge.
I love this application, and use it a lot. Recently, I built myself a super computer, using the mobo EVGA Classified SR2
On the outside, I have a MOTU 828 mk3 (breakout box)

I have been able to configure the entire system to run a sample rate of 96khz / 24 bit, using the built in RealTek S/PDIF output.
So I record everything in Cakewalk Sonar using these settings, and at the same time record from the Internet, from any WAV file etc, no problem at all.

However, when I start Sound Forge, things get messed up. SF changes the MOTU's sample ant bit rate to 44100 / 16. Why does it do that? I have tried to configure the ASIO panel inside SF, and it stubbornly resets everything to 44100 / 16.

All is fine on my system now, all media players, Cakewalk Sonar - all i fine, except SF, that behaves like this. I have no idea how to fix it. Have you?
Ingvar

Subject:RE: SF is changing MOTU sample rate at startup

Reply by: Geoff_Wood

Date:7/5/2011 8:35:09 PM

Um, you have an 828Mk3 - so where, why, how does the mobo Realek and SPDIF enter the equation ?!!

I doubt that SF is problem here.

geoff

Subject:RE: SF is changing MOTU sample rate at startup

Reply by: ingvarai

Date:7/6/2011 3:22:26 AM

>- so where, why, how does the mobo Realek and SPDIF enter the equation ?!!

Good question!
When working in Cakewalk Sonar with a 96k sample rate, Sonar takes "ownersip" over the Motu. This means that I can not play back from YouTube, Windows Media Player etc. while using Sonar.
Introducing SPDIF solves this, because I can set the Realtek digital output to 96k too, and mix everything inside the Motu.
All is fine now - had it not been for Sound Forge.

> I doubt that SF is problem here
When I fire up Sound Forge, it takes "ownership" over the Motu, and forces it to 44.1 k. Yes, I can click the advanced tab in SF, and change it to 96 k. But as soons as the dialog box closes, SF forces the settings back to 44.1 k. And nothing works.

So it definitely is a SF problem. I just don't know how to fix it.
I have the latest drivers for the Motu.

Ingvar

Subject:RE: SF is changing MOTU sample rate at startup

Reply by: ingvarai

Date:7/6/2011 4:58:00 AM

Ok, here is an update:
For some mysterious reason, everything works now. I say mysterious because the same config did not work before.
First, I uninstalled and resinstalled SF. Then SF worked at the very first attempt, but had the same problems on all subsequent attempts.
Then I changed the ASIO clock from Internal to S/PDIF.
And it works! Now everything works. I find it hard to believe, and imagine that when I wake up tomorrow, it doe not work anymore - but so far - it just works!
Ingvar

Subject:RE: SF is changing MOTU sample rate at startup

Reply by: pwppch

Date:7/6/2011 5:37:12 AM

Sound Forge will reset the sample rate to the file being played always. So it does not lock to a specific sample rate. By having the MOTU clock to an external source, Forge may present an error or playback at the wrong speed.

Peter

Subject:RE: SF is changing MOTU sample rate at startup

Reply by: ingvarai

Date:7/6/2011 8:08:30 AM

Hi,
I must admit I have almost no clue about this. But having installed SF from scratch, and just started it, what "file" are we talking about here? I do notice that it follows the file properties, so somehow it must believe it has a 44.1 kHz file opened, even when running the very first time.

I now have problems igjen, it won't record, won't play back. Sigh, sound is the worst "feature" on a PC it seems.
Ingvar

Subject:RE: SF is changing MOTU sample rate at startup

Reply by: jbolley

Date:7/6/2011 9:58:10 AM

in SF what is your driver? In Windows what is your default audio device? In MOTU setup what is your clocking source and what is your sample rate?

You have a conflict somewhere trying to use both audio devices.

Jesse

Subject:RE: SF is changing MOTU sample rate at startup

Reply by: ingvarai

Date:7/6/2011 10:41:47 AM

Hi everybody and thank you so much for your willingness to help me!
I have now sorted it out, all of it. Reading what I have written above, you will see that there are several things I do not understand, or did not understand. Among these are how SF works.
Here are some mistakes I did:

1) My system is not capable of 96 kHz / 24 bit, but 88.2 / 24 works perfect.
2) I did not understand that I have to make File / New in SF, then set the format to 88.2/24. Doing that, all is just fine.

> in SF what is your driver
MOTU

> In Windows what is your default audio device
The onboard Realtek S/PDIF output

To sum it up, after many hours of work, I finally have a system that works the way I want. Windows is living its own life together with the onboard Realtek sound device, that is YouTube, Windows Media Player etc. Does not know about my MOTU device at all.
Cakewalk Sonar and Sound Forge on the other hand, use the MOTU device, at high sampling and bit rate.

>You have a conflict somewhere trying to use both audio devices.

Yes, the clue here is the S/PDIF output from the Realtek device, which I connect to MOTU's S/PDIF input. I can now mix and match all sound on my PC, with no interference or hassle at all.
Ingvar