Does GLM alter the sound other than trimming peaks/boosting nulls?

[RobL]

Could you please post the filters applied by GLM, looks like 2 shelving ones above 500 Hz?

Yep, I’ll put them up when I’m home later. I actually lied…I had a look at Sound Character Profiler and I had a 3dB bass boost dialed in. I’m still not sure what’s up with the higher frequencies…would a bad microphone cause this?

 

[Rntlee]

Here's the filters GLM applied and Sound Character Profiler target curve. GLM's predicted correction as well:

 

[Rntlee]

Sorry, laptop logged me into old account. Only use it for GLM and REW, I usually use my iPad It's me "RobL"

 

[Joachim Herbert]

@RobL Did you find out what caused the issue?

 

[RobL]

@RobL Did you find out what caused the issue?

Still trying to get a chance to sit down and go through everything again…will update when I know something.

 

[Ecksbocks]

Measured my right speaker in REW with GLM (green) and without GLM (blue)...what the heck is GLM doing? no wonder I find it dull sounding!

View attachment 300070

No filters or shelves other than what GLM applied for correction.

I assume you're the OP. When I look at your SCP window it's set to "manual" and the HF shelf is set 660 hz, that's corresponding perfectly to the your REW measurements. Can't be sure of course but that indicates that the high shelf is active despite set to 0. It have never happened to me but it sure seem to be a bug. And 5 dB at 6k will sound dull indeed.

Good luck, I hate when these kind of issues takes up a whole day!

 

[srrxr71]

In this case delete your entire profile and start fresh. Doesn’t take but 5 minutes.

 

[RobL]

In this case delete your entire profile and start fresh. Doesn’t take but 5 minutes.

Yeah, this was my fault. Speaker’s DIP was set to stored and there was an old calibration in there with a high shelf. GLM was just doing it’s thing but the dumbass on the computer didn’t check the switches!