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  Topic Review (Newest First)
12-19-08 05:53 PM
brucek
Re: SRM Turtle beach help!

It's fine.

To prove it's OK, simple connect a cable from the right channel line-out to line-in (just as you did to make the soundcard cal file), and take a Measure from 0-10000Hz. (be sure to run the Check Levels routine and Calibrate SPL first).

The resulting measurement should return a perfect straight line, if your cal file is correct.

brucek
12-19-08 02:52 PM
sendtobrit
Re: SRM Turtle beach help!

Is there anything you can think of that might help in that region (10-15hz)?
12-19-08 02:51 PM
sendtobrit
Re: SRM Turtle beach help!

BTW the SRM was on 5.1 instead of two speakers that is what did the trick!
12-19-08 02:45 PM
Ricci
Re: SRM Turtle beach help!

It's still a little bit more rolled off on the low end than the usual, but much better. If you aren't concerned with measuring below 10-15hz anyway who cares.

What was the problem?
12-19-08 02:37 PM
JohnM
Re: SRM Turtle beach help!

Looks good.
12-19-08 02:15 PM
sendtobrit
Re: SRM Turtle beach help!

Holy !! I think it worked, let me know if this is correct?
12-17-08 01:01 PM
Ricci
Re: SRM Turtle beach help!

Hmm. It does look like a filter is on. I'm guessing that it is something in the SRM control panel settings. Not sure what as I don't have it to look at right now.
12-17-08 09:18 AM
brucek
Re: SRM Turtle beach help!

Quote:
To do this, set the speaker configuration to Stereo on the Speakers tab
I believe the stereo or 5.1 switches only affect the multi-channel output port. He's (correctly) using the line-out port that should always be simple stereo without the possibility of any high or low pass filtering. Either way I did get him to ensure it was in 'two speaker' output and that made no difference. Something is sure amiss though...

brucek
12-17-08 07:39 AM
JohnM
Re: SRM Turtle beach help!

That is a crossover filter response, the card must be set up to cross over to a sub at 120Hz, the rest of your signal is coming out of the 0.1 sub connection. Turn off the Turtle Beach card's surround processing, just set it up as a stereo card.

Edit: To do this, set the speaker configuration to Stereo on the Speakers tab
12-16-08 08:22 PM
brucek
Re: SRM Turtle beach help!

Not much else I can think of.

It's a fairly basic measure of the output looped back to the input of a soundcard with a straight cable. The only thing that should be revealed is the total looped frequency response of the card itself. As long as you have no equalizer, soundfield, or filter settings turned on, and the cards mode is stereo (hopefully you have it set to two speakers), and the cable is a simple wire, then it should show the true response of the card. Your response looks fine except for the very smooth and rapid dropoff at 120Hz, which isn't normal.....

brucek
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