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Low SPL reading

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low reading spl
1K views 1 reply 1 participant last post by  draki 
#1 ·
Got Umik1 from CS. Prepared the first session with REW. Umik in MLP. All cabling OK. Got generator signal out of speakers (pink noise, speaker cal, level -12dB). Set speakers (L/R, no sub) to a comfortable level , fairly loud. REW's SPL meter shows VERY low levels, around 25-30 dB even though the levels should be comfortably over 75dB. When speak (shout!) in Umik the level does increase, peaking to about 45-50 dB.

Something is clearly wrong. What am I doing wrong? While waiting for Umik, I read and reread the REW help manual, but stumbled on the first step! Frustrating...:help:

Any advice will help. Thanks in advance.
 
#2 ·
Issue SOLVED!
For those who might be in a similar situation:
in "Preferences", in "Soundcard", diver "Java":
- Input device: Microphone (Umik1)
- Input: Microphone (Master Volume)

Previously both were set as "default device".

Now SPL reading (and indeed first measurements) are working OK.

Rgds
 
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