REW YouTube Tutorial - Page 2 - Home Theater Forum and Systems - HomeTheaterShack.com

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post #11 of 105 Old 06-06-12, 08:49 AM
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Re: REW YouTube Tutorial

A bi-directional sound card simply means that it's capable of playback and recording at the same time.

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post #12 of 105 Old 07-02-12, 12:48 PM
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Re: REW YouTube Tutorial

What Bryan refers to as "bidirectional" is actually what is usually known as "full-duplex". Full duplex is the norm these days and it would be very unusual to find a sound card or audio interface that was not full duplex, so typically you don't have to worry about it.
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post #13 of 105 Old 09-16-12, 04:58 PM
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Re: REW YouTube Tutorial

Could I get some assistance regarding how i might use your REW software in conjunction with my DBX Driverack 260? Thanks!
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post #14 of 105 Old 09-17-12, 06:20 AM
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Re: REW YouTube Tutorial


Among other things, REW can help you determine where to set the crossover frequencies for your PA system as well as equalize it. Hard to be more specific without more details on your system and/or intended application.

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post #15 of 105 Old 09-19-12, 12:55 AM
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Re: REW YouTube Tutorial

hi, need to know the difference between xtz room analyser and REW software. which one is more accurate and user-friendly. will appriciate comments.
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post #16 of 105 Old 09-19-12, 05:11 AM
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Accuracy of these systems can be dependent on outside dependencies such as hardware, product and subject familiarity and even weather/climate. I personally use a combination of REW for my main measurments and XTZ for validation if something does not look correct to me.

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post #17 of 105 Old 09-19-12, 05:18 AM
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Also, with REW you can capture down to 0 Hz and XTZ only to 16.

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post #18 of 105 Old 11-20-12, 11:47 AM
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Thumbs up Re: REW YouTube Tutorial

Thank you, thank you, thank you!
I used to use REW a few years ago. This video will bring me back up to speed in no time, (well, about 9 minutes and 34 seconds!)
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post #19 of 105 Old 01-03-13, 01:04 PM
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Re: REW YouTube Tutorial


Great video! However, there is a significant error at about 3:25 when it says to perform the measurement with the mic in an upright position, but neglects to mention that this requires a special calibration file for 90-degree orientation. Traditionally horizontal orientation has been used for frequency response measurements in minimally-reverberant free-field environments like we find with the typical home theater. It should be mentioned the our generic calibration files for the Behringer ECM8000 and Dayton EMM-6 mics are 0-degree files for horizontal orientation. More reading on mic orientation in the links found in this post.

Regards,
Wayne



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post #20 of 105 Old 01-04-13, 07:39 AM
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Re: REW YouTube Tutorial

Hi Wayne

Here is a quote from the REW download link where they talk about mics and calibrations:

"For listening position measurements we recommend that the meter or mic be oriented vertically with a forward angle of about 10 - 20 degrees to capture a good mix of direct and reflected sound for 'room' measurements.

For near-field measurements we recommend a horizontal position to give the most accurate high frequency readings."

Since we're doing listening position testing, the vertical orientation is what is recommended.

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