My master? What do you mean?
Sorry, I have no master, and I do not understand your logic or your words.
Andrea, I come on this forum only now and then, mostly in vacations, like now.
I do not have knowledge of churches inside forums, but I admit they may exist. In any case, I do not have any "masters". I just try to be objective and responsive responsibly, to not make mistakes too often or too grave. Most important, I am here more to learn than to teach or help.
In this later direction, I think you "suffer" from staying too long active on this forum, like many others do. Could it be that there is still room above your current level of knowledge as well? I would be happy to hear a yes. Then we can try to fill that, reciprocal and mutual, in a useful manner and with controlled language and attitude.
What's wrong with Syn08, except that you appear to be always in defensive with him? Please describe it technically.
I do not have knowledge of churches inside forums, but I admit they may exist. In any case, I do not have any "masters". I just try to be objective and responsive responsibly, to not make mistakes too often or too grave. Most important, I am here more to learn than to teach or help.
In this later direction, I think you "suffer" from staying too long active on this forum, like many others do. Could it be that there is still room above your current level of knowledge as well? I would be happy to hear a yes. Then we can try to fill that, reciprocal and mutual, in a useful manner and with controlled language and attitude.
What's wrong with Syn08, except that you appear to be always in defensive with him? Please describe it technically.
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You are not getting anywhere. Your latest postings are just repetitions. You seem tired and upset. Take a break for a few weeks and chill. It's just audio...
//
It is basically very wrong to judge what someone loves.
And yes, most composers of music are examples of humility. Imagine, they must let others interpret what they write. I do not know about Bruce Griffiths.
Why are they your masters? Are you a composer too?
You are not getting anywhere. Your latest postings are just repetitions. You seem tired and upset. Take a break for a few weeks and chill. It's just audio...
I trust Andrea 100% when he says "I don't care of what you think". He is not responding to any feedback he gets from peers. Instead, he is in fact constantly addressing only his customer base, using the whole arsenal (name dropping, looking for conjectural supporters, etc...) intended to communicate his sales message "look at us, our products are the best in the world". At the same time he's attempting to smear "don't listen to those guys, they don't have a clue, they don't read, they don't have experience, they don't listen", also flaming his potential competitors (do I need to name names?).
For the rest, I still have to see Andrea contributing to any constructive discussions, sharing his experience and (why not) mistakes, sharing plans for future projects, commenting on other people results, willing to learn from those more experienced than him, you know, the usual DIY approach.
Or at least assume his small scale commercial audio entrepreneurship (like many do here) and keep his messages confined in the special threads and dedicated forum areas. I myself don't remember to ever had any beef with honest entrepreneurs (again no name naming here), that don't recommend hanging oscillators on rubber bands to improve the sound, instead discussing features and limitations of their products, offered for a fair price, without any hype or deceiving marketing message.
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It's a bit like a discussion diod - info flows one way. I think Andrea is skilful in what he is doing and seem competent. The oscillators/clocks are very good. That is why I think the attitude is so strange. Hes *master* seem to be the angry Cat so maybe he is imitating that? I believe he posted that "they" have tested immunity to vibration and despite a very loud speaker on the test bench with the osc box nearby - no evidence of interference was detected - at -135 dBc/Hz. That surprised me a bit actually. I would think it would act like a sensitive mic... so for me, suspending the crystal mechanically is no bad idea - even just for extra safety. I have made such experiment myself but could not come to any sure conclusion. But I don't have the gear to measure it or the inclination/stamina to detect minuscule differences by ear.
//
Which is essentially the same, what I'proposed fairly often in these threads; the demand of some kind of proof for subjective impressions is misguided, for one part as proof isn't possible and otoh it can't replace the individual decision about if any of it is of some importance for ones own listening.
From a scientific point of view, we need well planned and executed experiments, which give further insight in the human hearing sense and maybe give some corrobation for certain hypothesises.
Everything else is just a personal decision, give it a try if you have some confidence in some members proposals and don't do it, if you think it is worthless or unimportant.
The susceptibility of the crystal should be not disputable (therefore my surprise about some of the recent "cheap shot" posts) and it is questionable if the rubber band suspension can be dismissed without any evaluation.....
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Please help me, somehow, with your impressions of current sources.
Anyone had met a really good setup, a lot better than a simple chip-amp?
How they sound vs. measurements?
What speakers "designed for current" you know? How you imagine the design requirements? What are the optimum tradeoffs?
Anyone had met a really good setup, a lot better than a simple chip-amp?
How they sound vs. measurements?
What speakers "designed for current" you know? How you imagine the design requirements? What are the optimum tradeoffs?
Scott, when I was young, I was a little bit disappointed to know at least 2 guys who have much better hearing ability than me. One is a mix engineer who mixed Madonna's multi million hit single, and the other is (was) a young composer who later would have become millionaire (I believe). They immediately pointed out some low frequency things of the songs that we were listening, which I can't still hear even after 20 years, and we were listening them with mediocre small monitors (either 1030 or NS10M) at very low volume.
Now I feel I'm lucky to have that experience to be honest.
Now I feel I'm lucky to have that experience to be honest.
Haven't seen this, but if so, then why promoting this crazy idea?
Nobody debated the vibration sensitivity of crystals, the importance of oscillators phase noise for DACs and ADCs, but then keep this within reasonable limits. This is audio, for ***** sake, not microwave synthesis, Stratus I time keeping, missile guidance, metrology, etc...
As soon as somebody will demonstrate there is an audible difference between Andreas supa dupa, rubber suspended, clock phase noise and a 50 cent crystal (everything else being equal) I will deeply and humbly apologize for the rants. Don't hold your breath, I measured a 24 bit delta-sigma ADC with a 10MHz Millirem MTI 240 oscillator and a 50 cent 10MHz quartz and there was absolutely no measurable difference, not even a tenth of a dB in the SNR, as long as audio frequencies are involved. Of course, for a 1Gb/sec ADC the situation could be different.
Meantime, anything related to the "close-in phase noise" effect, the need for -150dB phase noise, etc... are in the same category as audiophile power cords and dark matter noise suppression, that is, audiophile BS promoted for the sole purpose of milking the wallets of useful idiots.
@Chris
I did not refer to you, you have not endorsed his nonsense about oscillators
@TNT
It's RF, not audio. ��
And yes, I confirm no interference was detected with the oscillators closed in the box.
However, as you said suspending the crystal mechanically is no bad idea, just one further precaution.
But it's certainly not something to be laughed at like syn08 did.
You have found the angry Cat.
@Ionmw
Sorry but it looks like you don't know much about RF and oscillators are RF matter.
John Miles who I have mentioned is not the singer (although "music was my first love" is appropriated for this thread), he is the guy who have designed the hardware and the software of the phase noise analyzer tool named Timepod 5330A (now Microsemi 5120A).
And Bruce Griffiths is one of the smartest RF guys.
Time-nuts it's the suitable place for RF topics.
We certainly couldn't learn from syn08 to design an oscillator as he is quite faulty in the RF field.
@syn08
You're repeating yourself to the point of boredom.
I'm more than willing to learn but unfortunately not from you.
Until now we have designed and built only a few pieces of the audio system we are working on (for our personal use), the oscillators for the digital to analog conversion and the battery power supply management.
About the oscillators the results are clear and measured and the measurements have been confirmed.
For the discussions there is a specific thread, you are welcome.
There is also a specific thread for the battery power supply, again you are welcome.
We have not measured the battery PS, I honestly don't know what we could measure but if you have a different idea we are happy to hear your comments.
So, conversely to what you say, we have shared our designs and our experience, the specific threads are still open and anyone is welcome.
We have also shared our current and future projects, there is a specific thread about a FIFO buffer (or digital front end if you want) and I will start soon a new thread about our discrete DAC (both under testing).
I have already mentioned the digital front end that we will use in our final system but it is still premature to open a thread as development times will be very long.
Still too early for amplifier and speakers.
Maybe you should give up on personal attacks and contribute to constructive discussions.
Don't you believe?
No hope, you are only capable of insulting ("useful idiots").
@ZacharyP
Sorry but I have to give up, you still keep misunderstanding the words "unlimited budget".
The last time, it means that we can develop our devices following the way we believe is the best without any marketing constraint.
Therefore we can use a 80 EUR crystal in our oscillator because we believe it is necessary and we care less than zero if all others will use a 25 USD Crystek oscillator or a 5 USD Si570 programmable oscillator. Anyone is free to follow his own way.
@jakob2
I apoligize, I have misunderstood your comments.
I did not refer to you, you have not endorsed his nonsense about oscillators
@TNT
It's RF, not audio. ��
And yes, I confirm no interference was detected with the oscillators closed in the box.
However, as you said suspending the crystal mechanically is no bad idea, just one further precaution.
But it's certainly not something to be laughed at like syn08 did.
You have found the angry Cat.
@Ionmw
Sorry but it looks like you don't know much about RF and oscillators are RF matter.
John Miles who I have mentioned is not the singer (although "music was my first love" is appropriated for this thread), he is the guy who have designed the hardware and the software of the phase noise analyzer tool named Timepod 5330A (now Microsemi 5120A).
And Bruce Griffiths is one of the smartest RF guys.
Time-nuts it's the suitable place for RF topics.
We certainly couldn't learn from syn08 to design an oscillator as he is quite faulty in the RF field.
@syn08
You're repeating yourself to the point of boredom.
I'm more than willing to learn but unfortunately not from you.
Until now we have designed and built only a few pieces of the audio system we are working on (for our personal use), the oscillators for the digital to analog conversion and the battery power supply management.
About the oscillators the results are clear and measured and the measurements have been confirmed.
For the discussions there is a specific thread, you are welcome.
There is also a specific thread for the battery power supply, again you are welcome.
We have not measured the battery PS, I honestly don't know what we could measure but if you have a different idea we are happy to hear your comments.
So, conversely to what you say, we have shared our designs and our experience, the specific threads are still open and anyone is welcome.
We have also shared our current and future projects, there is a specific thread about a FIFO buffer (or digital front end if you want) and I will start soon a new thread about our discrete DAC (both under testing).
I have already mentioned the digital front end that we will use in our final system but it is still premature to open a thread as development times will be very long.
Still too early for amplifier and speakers.
Maybe you should give up on personal attacks and contribute to constructive discussions.
Don't you believe?
No hope, you are only capable of insulting ("useful idiots").
@ZacharyP
Sorry but I have to give up, you still keep misunderstanding the words "unlimited budget".
The last time, it means that we can develop our devices following the way we believe is the best without any marketing constraint.
Therefore we can use a 80 EUR crystal in our oscillator because we believe it is necessary and we care less than zero if all others will use a 25 USD Crystek oscillator or a 5 USD Si570 programmable oscillator. Anyone is free to follow his own way.
@jakob2
I apoligize, I have misunderstood your comments.
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Being criticized for use of fluffy marketing language or for allowing pseudoscientific pontificating on your products isn’t a criticism of your ability to design an oscillator Andrea.
Also, yes, thank you for explaining how your unlimited budget works. Multimillion dollar corporations are too constrained, while you’re able to spend upwards of 300 to 1,600% more on individual components. Sadly, I don’t think one can purchase super powered hearing
not that anyone would actually want the kind of hearing necessary to detect the differences Andrea and Mark talk about hearing. With all the technology in today’s world, I can’t imagine how someone who can detect changes -140db down could ever get a moments rest
Rare defect causes supersonic hearing | king5.com
Sensory overload: How superpower hearing turned into a sonic nightmare - WHYY
But yes I’m sure the snake oil proponents who have such sensitive ears are able to turn it on and off like a super power. Or do they all live in isolation, only coming out to listen to the differences between some of the worlds best audio oscillators when played through a 2-way speaker system driven by a SET amp?
Also, yes, thank you for explaining how your unlimited budget works. Multimillion dollar corporations are too constrained, while you’re able to spend upwards of 300 to 1,600% more on individual components. Sadly, I don’t think one can purchase super powered hearing
not that anyone would actually want the kind of hearing necessary to detect the differences Andrea and Mark talk about hearing. With all the technology in today’s world, I can’t imagine how someone who can detect changes -140db down could ever get a moments restRare defect causes supersonic hearing | king5.com
Sensory overload: How superpower hearing turned into a sonic nightmare - WHYY
But yes I’m sure the snake oil proponents who have such sensitive ears are able to turn it on and off like a super power. Or do they all live in isolation, only coming out to listen to the differences between some of the worlds best audio oscillators when played through a 2-way speaker system driven by a SET amp?
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