I have learned so much from all of you. And my science heart always loved graphs instead of words, so I appreciate the SINAD.
However, I read a few interesting threads in the forum. One arguing that harmonic distortion may not matter as much as SINAD may portray. I also have seen Amir criticizing others by bringing things that we do not perceive, like phase shift.
Knowing what we know about human hearing and perception, is it possible to come up with a ranking of things we can hear? For example, dynamic range Amir presents is 20hz to 20khz. Is noise at 20hz really important? Not understanding about it too much, it seems someone thought about this and came up with A-weighting. I don’t care if there is noise at 30khz or phase shift or harmonic distortion that is masked. I care about stuff that really makes a difference.
Residual noise was one thing that opened my eyes. To me this seems important as equipment with noise can be heard and is bad, while say harmonic distortion at -95dB may be masked. Case in example was my own miniDSP 88A that Amir reviewed. It was useless in my active setup, as one could hear hiss from a meter away.
Sorry for venting, but being a science forum, could we define threshold of audibility of THD and SNR (measured at various outputs), all within what humans perceive. We don’t need ghz snr or stuff with no phase shift, as you all have argued those don’t matter.
Cheers!
PS: We measure and define preferred headphone frequency curve based on how human ear perceives sound with headphones on the ear. We do not use Hartman curve, which we came up with based on human hearing perception and preferences. We do not rank speakers based on purely flat response to 30 or 90 kHz
However, I read a few interesting threads in the forum. One arguing that harmonic distortion may not matter as much as SINAD may portray. I also have seen Amir criticizing others by bringing things that we do not perceive, like phase shift.
Knowing what we know about human hearing and perception, is it possible to come up with a ranking of things we can hear? For example, dynamic range Amir presents is 20hz to 20khz. Is noise at 20hz really important? Not understanding about it too much, it seems someone thought about this and came up with A-weighting. I don’t care if there is noise at 30khz or phase shift or harmonic distortion that is masked. I care about stuff that really makes a difference.
Residual noise was one thing that opened my eyes. To me this seems important as equipment with noise can be heard and is bad, while say harmonic distortion at -95dB may be masked. Case in example was my own miniDSP 88A that Amir reviewed. It was useless in my active setup, as one could hear hiss from a meter away.
Sorry for venting, but being a science forum, could we define threshold of audibility of THD and SNR (measured at various outputs), all within what humans perceive. We don’t need ghz snr or stuff with no phase shift, as you all have argued those don’t matter.
Cheers!
PS: We measure and define preferred headphone frequency curve based on how human ear perceives sound with headphones on the ear. We do not use Hartman curve, which we came up with based on human hearing perception and preferences. We do not rank speakers based on purely flat response to 30 or 90 kHz
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