tuga
Legal Alien
I would have agreed with you a few years ago.
What made you change your mind?
I would have agreed with you a few years ago.
Noise as a signal is how large? And then the distortion components of the tiny signal are how large? And then the nonlinear part of the distortion is how large? And then the part of that nonlinear distortion that is aliased into a particular audible frequency with enough magnitude to be heard relative to the music signal at that frequency is how large? To repeat, if you make any sort of effort to quantify the size you will see it is negligible.I understand your point regarding the bandwidth of CD and of most mics. SACD and vinyl have considerable ultrasonic noise though, and JA mentioned this when measuring such speakers.
What about noise-shaping and tweeters with a resonance peak that's 10dB above the audible range like the BnWs I mentioned previously?
Because it strongly supports the marketing of top of the range home audio speakers. To most audiophiles the further above 20 kHz the first resonance the better the product. It is just obvious and if this is done with an exotic material the extremely high price is obvious as well. Over-engineering sells luxury products.And why has (hard-domed) tweeter design focused on pushing the break up higher, away from the audible range?
How have you determined what ported bass sounds like? Our two ears and a brain lack a mechanism to distinguish the source of sound in a room at low frequencies in the way they do automatically at higher frequencies. If a sealed speaker was equalised to have the same frequency response as a ported speaker (and the driver in the sealed speaker was large enough not to have distortion issues) would you expect to hear a ported speaker, a sealed speaker or something else?The problem with ported bass is that it sounds like ported bass.
How have you determined what ported bass sounds like? Our two ears and a brain lack a mechanism to distinguish the source of sound in a room at low frequencies in the way they do automatically at higher frequencies. If a sealed speaker was equalised to have the same frequency response as a ported speaker (and the driver in the sealed speaker was large enough not to have distortion issues) would you expect to hear a ported speaker, a sealed speaker or something else?
Now post the transient response of the room in which you wish would compare the transient response of these two speakers. Conclusions?Transient response?
Now post the transient response of the room in which you wish would compare the transient response of these two speakers. Conclusions?
Not answering for @fatmarley but for me. Listening back-to-back in my dealer's listening room to ATC's SCM40A (sealed) and SCM50A (ported) convinced me there was nothing essential characterising the sound of ported speakers.What made you change your mind?
Not answering for @fatmarley but for me. Listening back-to-back in my dealer's listening room to ATC's SCM40A (sealed) and SCM50A (ported) convinced me there was nothing essential characterising the sound of ported speakers.
What made you change your mind?
I consider myself an extremely sceptical audiophile and in spite of my limited technical knowlege I am firmly in what is usually referred to as the objective camp. But I am not deaf.
Why do you need virtually "transparent" sources and amplification with infinitesimally small amounts of noise and distortions and crosstalk if the speaker produces comparatively massive amounts of HD, IM and non-linear distortions, etc., plus the room interference?
If you were objective about it then you would set about knowing why they sound different to you. Which differences are above an audibility threshold? If none, where does the explanation lie?You shouldn't be able to hear the difference between say a UCA222 and a Chord Mojo or between a T-Amp and a Marantz PM6003...
What ever I say isn't going to change your mind and that's exactly how I felt a few years ago. I build my own speakers now and lets just say that i'm very careful about what drivers I choose and how I tune my speakers because I detest bloated, boomy or subjectively slow bass. If you're anywhere near Cheltenham, you're more than welcome to have a listen.
Why do you consider yourself to be objective when you have no interest in the science of what is going on? In order to be objective you have got to have relevant knowledge and understanding to be objective with. You have taken no interest in the sizes of the quantities involved that would be required to make an ultrasonic tweeter resonance audible. You are simply taking it on faith that it is audible and looking to doubtful sources to confirm that faith. This isn't being objective. It isn't being subjective either. It is being an audiophile.
What does virtually transparent mean. What does massive amounts of HD, IM and non-linear distortion mean. Do the numbers and compare them to audibility thresholds. You might be surprised. Why can we recognise the sound of someone's voice despite massive and different room interference patterns? Why doesn't it seem to matter (at least at some frequencies)? Obtaining this sort of information would enable you to be objective.
If you were objective about it then you would set about knowing why they sound different to you. Which differences are above an audibility threshold? If none, where does the explanation lie?
I answered that question earlier in the thread. I have opted to skip the rest and stop because no discussion has taken place over the last few posts and we are only partially on topic.Why can we recognise the sound of someone's voice despite massive and different room interference patterns but not the decay of a ported speaker?
Some tweeters are remarkably efficient at making ultrasonic signals audible.
I was shocked when I first heard the effect for myself.
I always wonder the reasons for tweeters with super high frequency responses when most microphones fail to reach 15khz. I use a wide range including some rather tasty DPA and they top out at 15khz and most my other stuff really struggle to achieve 12khz and above.
I answered that question earlier in the thread. I have opted to skip the rest and stop because no discussion has taken place over the last few posts and we are only partially on topic.