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SNR of the REW setting

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setting snr
1K views 5 replies 3 participants last post by  49 Prodiceye 
#1 ·
Hi all,

One question for the REW setting. If I want to know the SPL and Impusel of my headphone system with a UMIK-1 MIC. The noise of my room is 40dB in low frequency and 20dB in high frequency. What level should I adjust in when I do the measurement?

I really appreciate it.
 
#5 ·
Real life strikes again. My own approach is make critical measurements at night, turn off the refrigerator, turn off the AC/furnace, turn off flourescent lights that buzz, replace all noisy pc fans and power supplies with super-quiet ones, take measurements of acoustical and electrical noise floors to maximize SNR.

A 105 dB measurement with headphones will very likely yield high distortion and not be representative of typical listening performance.

Phase response measurements are tough to do much with, except see that they match closely between L and R transducers (they should match closely).
 
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