noise audibility

I have some confusion about information I find on this site. On one side, in the Wiim Mini review the internal DAC is seen as not good (84dB). But on the other hand others mention that noise at -84dB cannot be heard. Is there a real-world difference between a 140dB DAC and the Wiim DAC? Or do...

Hi, I have a similar problem with Topping L30 as in this topic and I'm going insane from it. To wrap it up shortly. I have Topping L30 and E30 and I have been using it without a problem since release (2012 SN). Recently I moved to new apartment and from first second trying out my gear I heard...

So this one might get me the stupid question of the week award or something... but anyway: We all know hearing threshold curves, which are taken using narrow bandwidth tones AFAIK. What do they mean for minimum detectable white noise level though? How low typically is it? Are there any studies...

A recent discussion on the Benchmark's AHB2 discussed the consequences of an amp with measuring THD of -100 vs one with -120 dB. Although unstated, I perceived that the real issue was the audibility spurious sound energy. This got me thinking about how sound levels work across the audio...

Wondering about noise audibility for people here on ASR. I created a file, that has 2 seconds of filtered white noise from 3-5 khz followed by two seconds of silence. It repeats for 16 seconds. That keeps noise and no noise segments in echoic memory. The noise is in the ear's most sensitive...