Quote:
SandmanX wrote:
 For a soundcard I am using the Creative Soundblaster Live External 24 as recommended by this site. I am using the EMM8 electret condenser microphone and
a MP-1r microphone pre-amplifier |
That setup works well, though the MP-1r produces a bit of noise at very low frequencies. Set the Input Volume to 1.000, to set the gain on the MP-1r play a speaker cal signal at 75dB SPL and aim for around -20dB rms input level on REW (it's easier to set the levels with speaker cal than sub cal) or look for the -10dBV LED on the MP-1r to start flickering - should find the level control is at about 2 or 3 o'clock.
Quote:
| deadkenny64 wrote:
I am using a stereo adapter with a RS meter as the mic with the same USB sound card and got the same error message. I switched the meter from 80db to 70db and got it to take after 2 more tries. It seems to be just barely enough signal on the line in to work with all sliders maxed. |
Something is wrong in the setup, with the SB Live 24-bit External and the Line In/Mic-In slider set to full (1.000) you should see around -21dB rms with the RS meter set to the 80dB range when a 75dB SPL cal signal is playing.