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I want to show some measurements that I made yesterday and shared with @TheoS53 via pm, which includes two different M0 units - a red and a purple, and two different white-noise test tracks - one that I'd previously used, and one that @TheoS53 is using (pn_65536):
The Nyquist-glitch is just an issue with the windowing (and at low frequencies, there just aren't enough sample points in the periodic white noise section to cover every frequency). Other than that, it's ruler flat. However, I want to extend my earlier offer to all those of you that are still worried about the excessively bright-sounding nature of your M0 and are wondering about how best to dispose of it (does it go into the green trash can, or the blue?), please let me pm you my address so that you can mail it to me and I will help you all dispose of it in an environmentally-friendly way
@TheoS53 - did you generate that calibration file for your sound card using a loop-back? I think it has to be worth trying another sound card.
P.S. There's a much more accurate way of doing these FR measurements. More later...
The Nyquist-glitch is just an issue with the windowing (and at low frequencies, there just aren't enough sample points in the periodic white noise section to cover every frequency). Other than that, it's ruler flat. However, I want to extend my earlier offer to all those of you that are still worried about the excessively bright-sounding nature of your M0 and are wondering about how best to dispose of it (does it go into the green trash can, or the blue?), please let me pm you my address so that you can mail it to me and I will help you all dispose of it in an environmentally-friendly way
@TheoS53 - did you generate that calibration file for your sound card using a loop-back? I think it has to be worth trying another sound card.
P.S. There's a much more accurate way of doing these FR measurements. More later...
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