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post #71 of 191 Old 09-08-08, 08:09 PM Thread Starter
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Re: REW Noob

Does having the loopback always connected effect the testing of the highs?
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post #72 of 191 Old 09-08-08, 08:18 PM
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Re: REW Noob

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That's what I did to get the bottom graph.
No, that's a test of the loopback cable without the soundcard cal file loaded.
Are you sure you created the soundcard file on the right channel with the cable on the right channel and then saved that file and did the test measurement on the right channel. The left channel is never used, and you do not check the box that says "Use left channel as calibration reference"..

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Does having the loopback always connected effect the testing of the highs?
Huh???

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post #73 of 191 Old 09-08-08, 08:37 PM Thread Starter
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Re: REW Noob

I was just wondering about the loopback connection. It just mentions it is optional. Did not know if it needs to be connected all the time.

Here is a snap shot of the settings.
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post #74 of 191 Old 09-08-08, 08:40 PM Thread Starter
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Re: REW Noob

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No, that's a test of the loopback cable without the soundcard cal file loaded.
Are you sure you created the soundcard file on the right channel with the cable on the right channel and then saved that file and did the test measurement on the right channel. The left channel is never used, and you do not check the box that says "Use left channel as calibration reference"..
What I don't understand is everything works fine for the sub. The highs just seem to drop off almost 25dB compared to the <200Hz frequencies.
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post #75 of 191 Old 09-08-08, 09:22 PM
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Re: REW Noob

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What I don't understand is everything works fine for the sub. The highs just seem to drop off almost 25dB compared to the <200Hz frequencies
Can you tell me what you are trying to measure and what frequency range you're talking about.

Hopefully your receiver is in stereo only mode and all soundfields are shut off.

Your settings page looks fine (other than I would select the line-in and line-out device in the pulldown rather than the Default you're using).

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post #76 of 191 Old 09-09-08, 12:01 AM
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Re: REW Noob


Quote:
Can you explain how to test the highs? When I went to try today, the measurements were steadily declining after 200Hz.
Under the "Target Settings" button on the left side of the REW screen, change the "Speaker type" from SUBWOOFER to FULL RANGE. Then go to the "Graph Limits" icon at the top right of the screen and change the Right axis limit from 200 to 20,000. You should be good to go then.

Keep in mind that the Radio Shack meter is only going to be good out to 5 kHz or so...

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post #77 of 191 Old 09-09-08, 07:22 AM Thread Starter
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Re: REW Noob

Here is what I am getting when I try to measure to 20kHz....
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post #78 of 191 Old 09-09-08, 08:28 AM
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Re: REW Noob

Turn off your sub and measure one main speaker by itself from 15Hz-20000Hz. Be sure to use the correct Main speaker pink noise to Check/Set levels and use a 75dB target.

Post the graph..........

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post #79 of 191 Old 09-09-08, 11:09 AM Thread Starter
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Re: REW Noob

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...measure one main speaker by itself from 15Hz-20000Hz. Be sure to use the correct Main speaker pink noise to Check/Set levels and use a 75dB target.
That should help. It is currently going through both main speakers.
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post #80 of 191 Old 09-09-08, 11:24 AM
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Re: REW Noob

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That should help.
Well, I don't know about that. I'm just trying to establish what sort of problem you have. It looks like an equalizer setting is turned on somewhere (in the soundcard, in the receiver). Did you go through all the soundcard settings and be sure all soundfields and mixers and EQ and boost etc are shut off?
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