Simplified REW Setup and Use (USB Mic & HDMI Connection) Including Measurement Techniques and How To Interpret Graphs - Page 519 - AVS Forum | Home Theater Discussions And Reviews
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post #15541 of 15542 Old Today, 04:56 PM
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Originally Posted by AustinJerry View Post
The LFE track is encoded at 10dB lower than the other tracks. The AVR automatically adds the 10dB back, so there is no action required on your part, nor should you be concerned.
So the reason why REW ends up +10db for the sub LFE channel is because they aren't factoring in -10db to compensate for your AVRs +10db, which is assuming an input of -10db. Wow.

What started all this mess in the first place, I wonder?
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post #15542 of 15542 Old Today, 05:18 PM
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So the reason why REW ends up +10db for the sub LFE channel is because they aren't factoring in -10db to compensate for your AVRs +10db, which is assuming an input of -10db. Wow.
No, the reason it ends up +10dB is because you don't understand how the LFE channel works and therefore don't adjust your system to get the same SPL as the others when measuring.

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What started all this mess in the first place, I wonder?
Someone decided the LFE channel should be capable of 115dB whereas other channels were capable of 105dB. That means the same digital signal will yield different playback levels depending on the channel.
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