Hello,
This is my first post here and first stab at REW after lots of reading and video watching. I wanted to share what I did as a workflow and the graph I got so that someone can help me further as the results do not make sense to me.
1. Installed REW 5.19 with java
2. Connected my miniDSP Umik-1
3. Opened REW, selected 90 degree calibration file
4. Generated Pink Noise and saved at -20 db
5. Generated Measuring Sweep 256k and saved at -12 db
6. Saved those to an external drive so I can play them directly from my AVR and thus engage my full system with the subwoofer and bass management. I simply wanted to avoid to connect HDMI from my laptop to the AVR (display port issue). Thus with this step I was hoping I am still correct in my approach.
7. Played back the pink noise and measured with REW SPL, turned up the AVR volume until SPL showed 71 db (live in a small apartment so wanted to calibrate lower)
8. Played back the Measuring Sweep 20Hz to 20k Hz and used RTA to measure
9. Saved the measurement Peaks and applied 1/3 octave smoothness on the graph.
10. Attached is the result
I think my result looks weird as everything from 500Hz and up goes down very steeply. Obviously something is not right. Can you guys help me out what I am doing wrong? Is measurement only possible by using HDMI and closing the loop between the PC and AVR? I thought playing the file from REW and sending it via HDMI would be equivalent to saving the generated tone and playing it back from the AVR.
Thank you very much in advance
This is my first post here and first stab at REW after lots of reading and video watching. I wanted to share what I did as a workflow and the graph I got so that someone can help me further as the results do not make sense to me.
1. Installed REW 5.19 with java
2. Connected my miniDSP Umik-1
3. Opened REW, selected 90 degree calibration file
4. Generated Pink Noise and saved at -20 db
5. Generated Measuring Sweep 256k and saved at -12 db
6. Saved those to an external drive so I can play them directly from my AVR and thus engage my full system with the subwoofer and bass management. I simply wanted to avoid to connect HDMI from my laptop to the AVR (display port issue). Thus with this step I was hoping I am still correct in my approach.
7. Played back the pink noise and measured with REW SPL, turned up the AVR volume until SPL showed 71 db (live in a small apartment so wanted to calibrate lower)
8. Played back the Measuring Sweep 20Hz to 20k Hz and used RTA to measure
9. Saved the measurement Peaks and applied 1/3 octave smoothness on the graph.
10. Attached is the result
I think my result looks weird as everything from 500Hz and up goes down very steeply. Obviously something is not right. Can you guys help me out what I am doing wrong? Is measurement only possible by using HDMI and closing the loop between the PC and AVR? I thought playing the file from REW and sending it via HDMI would be equivalent to saving the generated tone and playing it back from the AVR.
Thank you very much in advance
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