TOPIC:

Sorry if making 3 threads is bad. i like to keep line of thoughts separate. When looking at my REW of Left and right response. I have it pretty well matched. This is 8 point averaged on the left side and Eq'd and 8 point averaged on the right side and eq'd

This is a multi speaker system time aligned.

The first pic is Rew of L and R before any DIRAC. The second is a measurement of Dirac is sitting in a car using the Chair measurements. As you can see, i have huge dips and i have no idea why.

The curve is the shape i want to get but my question is. Should i place my house curve in the middle of the measurement and optimize or should i have the curve below the measurement and have everything cut to meet the curve

Is this using one of the miniDSP Dirac Live boxes?

Hello Jscoyne2,

Did you use the same area of measurements with both method ?
What you see might be the power response, do you cross the mids around 1.2/1.4Khz?

john.reekie wrote:

Is this using one of the miniDSP Dirac Live boxes?

No this is the software based on a computer. I turned off my time alignment and the big notch around 300hz went away but the one around 1.5khz stayed.

My ACOUSTIC xovers are
sub 0-90
midbass 90-380
midrange 380 to 6.6khz
tweet 6.6 upwards

grosso wrote:

Hello Jscoyne2,

Did you use the same area of measurements with both method ?
What you see might be the power response, do you cross the mids around 1.2/1.4Khz?

no i didnt use the same measurement points. Just seems weird to me that i still get a close resemblance of my house curve but with a giant dip at 1.5khz and nowhere else.

Jscoyne2 wrote:

john.reekie wrote:

Is this using one of the miniDSP Dirac Live boxes?

No this is the software based on a computer. I turned off my time alignment and the big notch around 300hz went away but the one around 1.5khz stayed.

My ACOUSTIC xovers are
sub 0-90
midbass 90-380
midrange 380 to 6.6khz
tweet 6.6 upwards

Hi, it's just that that is a very unusual (to me) curve. you have something like a 30 dB swing. I thought maybe it's the microphone you are using. I can't help wondering if you are EQing only to mask engine noise?

@ Jscoyne2

mmmh, something doesn't jive here on your measurements (else it must sound "VERY" boomy in your car with such response).
Can we please start simply and try to make a measurement of the UMIK-1 with REW (making sure the USB is plugged all the way) of a known "linear environment" .e.g. a Hifi speaker maybe (not a car).

Something is wrong on that measurement (or your car is all bass and nothing else).. I think we're looking maybe at the wrong curve as John implies..

Devteam

Did you continue to explore on this Jscoyne2?