https://www.audiosciencereview.com/...ith-topping-d10-jitter-measurement-png.12285/
what does it mean? I see the limit being -140 a lot. Why not lower?
what does it mean? I see the limit being -140 a lot. Why not lower?
Another question. Why is it commas are not used after a decibel point, like this? 0.000,000,2
-140dB isn't a measurement limit per-se. Remember dB is just an expression of a ratio between two numbers. So, as mentioned, with dac outputs the maximum signal is typically 2 volts rms. However this is not always the case so it's better to express it as relative to full scale output and quote that voltage figure. dBFS.https://www.audiosciencereview.com/...ith-topping-d10-jitter-measurement-png.12285/
what does it mean? I see the limit being -140 a lot. Why not lower?
We can indeed make the electrons shut up. Just reduce the temperature to absolute zero. This is indeed done in some equipment such as radio telescopes.Well is perhaps this thermal noise just below 140 or so?
Why can't we tell these electrons to shut up? They could be taught to pipe down or be sedated somehow. Maybe scatter them so there can be some peace and quiet down there. Or you say temperature, so do the measurements inside a volcano or in Antarctica so that they might be -180 dB.
Well is perhaps this thermal noise just below 140 or so?
I would suggest noise. Your ear also has a resolution bandwidth, like a limit to the fft resolution. So the surrounding noise will "overtake" the signal at 1kHz. I will try and demonstrate this when Im back home by showing that signal at different fft resolutions.What would you hear if you played the -144 1kHz tone back and turned up the volume, noise or 1kHz tone plus noise?
What would you hear if you played the -144 1kHz tone back and turned up the volume, noise or 1kHz tone plus noise?
Probably, but your amps, and mine, are very quiet, so I was interested in what it sounds like, if anything. I don't consider it relevant to normal playback but I'm interested in how the ear + brain might might compare to the analyser + FFT.This is intriguing but are there many power amplifiers with a SNR anywhere near this, so wouldn't a listening test be dominated by amp noise?