Advice For Measurements - Page 2 - Home Theater Forum and Systems - HomeTheaterShack.com

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post #11 of 33 Old 09-18-16, 04:10 PM Thread Starter
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Re: Advice For Measurements

Quote:
Wayne A. Pflughaupt wrote: View Post

You can do it either way, shouldnít make any impact on the measurement.

Regards,
Wayne

Ok thanks, now about my other question. Should measure the one meter from the driver or mouth of the horn in my case?
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post #12 of 33 Old 09-18-16, 05:34 PM
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Re: Advice For Measurements


Your original post said you wanted a room measurement? Thatís done with the mic at the listening position.

Regards,
Wayne A. Pflughaupt



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post #13 of 33 Old 09-19-16, 06:59 AM Thread Starter
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Re: Advice For Measurements

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Wayne A. Pflughaupt wrote: View Post

Your original post said you wanted a room measurement? Thatís done with the mic at the listening position.

Regards,
Wayne A. Pflughaupt
You are correct Wayne but, shouldn't I want to know what the speakers are doing alone also? Would that help when I eq the room?
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post #14 of 33 Old 09-19-16, 01:29 PM
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Re: Advice For Measurements


If you want to know what the speakers are doing apart from the room, you need to do a gated measurement, or else take measurements outdoors. That may or may not cull information you’d want to use for EQing in-room.

Really, ”room EQ” is a misnomer. We’re more precisely equalizing the effects (changes in frequency response) that the room has inflicted on the speaker. And that’s really only below ~3-500 Hz. Above that point we’re primarily equalizing the response of the speaker itself (at least in a reasonably dampened room).

Regards,
Wayne




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post #15 of 33 Old 09-24-16, 11:53 AM Thread Starter
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Re: Advice For Measurements

Ok hopefully I remembered how to do this? Here are the newish measurements of my room from the LP. So how do they look???

Last edited by Jay Compton; 09-28-16 at 07:17 AM.
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post #16 of 33 Old 09-30-16, 08:16 AM Thread Starter
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Re: Advice For Measurements

Well how do they look???
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post #17 of 33 Old 09-30-16, 10:54 AM
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Re: Advice For Measurements


Sorry ‘bout that, I typically don’t want to take the time to deal with .mdat files.

They look fine overall, but I’m sure things would sound much better if the broad peak just < 3 kHz were tamed. Bass response < 200 Hz is also pretty poor, but that’s typical for main-channel speakers. That’s why we use subwoofers, optimally placed and properly equalized.

Regards,
Wayne A. Pflughaupt



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post #18 of 33 Old 09-30-16, 12:46 PM Thread Starter
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Re: Advice For Measurements

Quote:
Wayne A. Pflughaupt wrote: View Post

Sorry Ďbout that, I typically donít want to take the time to deal with .mdat files.

They look fine overall, but Iím sure things would sound much better if the broad peak just < 3 kHz were tamed. Bass response < 200 Hz is also pretty poor, but thatís typical for main-channel speakers. Thatís why we use subwoofers, optimally placed and properly equalized.

Regards,
Wayne A. Pflughaupt
Wayne thanks for the imput, now here there are with some eq???
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post #19 of 33 Old 09-30-16, 02:40 PM
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Re: Advice For Measurements


The right channel looks worse after EQ – the broad trough between 300 and 2800 Hz is deeper, which makes the 2800 peak even worse than before.

The left looks overall about the same.

However, with both left and right, the bass peak at 40 Hz has been reduced to the point that things probably sound worse, bass-speaking.

Also, with both EQ’d graphs the overall level below 10 kHz dropped as much as 4 dB in places. Wholesale, across-the-board level adjustments shouldn’t happen with proper EQ. Levels should only change in specific places where EQ has been applied

Regards,
Wayne




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post #20 of 33 Old 10-02-16, 06:04 PM Thread Starter
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Re: Advice For Measurements

Ok Wayne,

Made some adjustments and ended up here..
Attached Thumbnails
Advice For Measurements-left-channel-sub-10-2-16.jpg  

Advice For Measurements-right-channel-sub-10-2-16.jpg  

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