Community Forums Archive

Go Back

Subject:ParaGraphic EQ
Posted by: BeachDog
Date:12/5/2002 3:26:27 PM

Hi,
Try this if you have a chance...

1. Create a Simple 5 second 440 Hz sync tone. (It's a Preset in the Simple Synth box). Note that it plays at -12 dB
2. Open the Paragraphic EQ and select the Preset... "Remove very low and inaudible frequencies below 20 Hz".
3. Hit OK, or just Preview.

Result: The volume is now louder (between -11.6dB or louder).

This may sound like I'm nit-picking, and I realize I can reduce the "Wet Out", but shouldn't the level stay exactly the same? If anything, get quieter, not louder.

Thanks,
BeachDog

Subject:RE: ParaGraphic EQ
Reply by: Sonic
Date:12/5/2002 7:07:49 PM

Ideally, yes, it should be the same. But all filters are not created equal. Here are some hints for profiling any filter.

http://www.sonicfoundry.com/forums/ShowMessage.asp?ForumID=3&MessageID=108764

Also note that in this particular case, most filter flavors will introduce a slight bit of gain on the first 10-100 ms. I've seen this with just about every simple shelving filter out there in multiple host applications.

J.

Subject:RE: ParaGraphic EQ
Reply by: BeachDog
Date:12/6/2002 10:50:57 AM

Hi,
I did notice that there is more gain in the first 10-100 ms. This appeared to be more than just "slightly" to me though. Thanks for the link, but I guess I can't see why it couldn't be made "ideal", since it's all digital, and especially since it's not being done in real-time.

Thanks,
BeachDog

Go Back