I agree, other than I cannot tolerate the distortion on fortissimo in large symphonic orchestra recordings (on the SET I own and heard).
That's why audiophiles often buy free cables in addition to very expensive break-in post-hypnotic suggestions.
Someone's playing the drums im the neighboorhood. I immediately know it wasn't a recording. I'm at least a hundred meters away. How do I know?
Someone's playing the piano in their living room one floor up, window open. I pass by. I know it's not a recording. How come?
That's exactly the question I've asked over and over. The answer is certainly not compression and gobs of distortion.
A concert hall doesn't lose it's sonic character between high and low levels when a live acoustic performance is taking place in front of listeners, we can still perceive the "hall", but many poorer recording systems (especially 16/44) collapse the space when the level gets high.
How have you determined that it's the 16/44 system as opposed to the usual run of lousy engineering? Certainly the Eargle recordings, Keith Johnson's wonderful work, and CDs from Pierre Sprey don't have any problems in this respect, at least when I listen to them over my own high dynamic range system.
Do we design audio to satisfy our measuring gear or to let us enjoy music?
Good question.
For me the audio setup is solely to let me enjoy better reproduced music. However for a designer measurements are indispensable tool.
That's why audiophiles often buy free cables in addition to very expensive break-in post-hypnotic suggestions.
I consider myself an audiophile, however, as far as I can tell, I'm not given to post-hypnotic suggestions.
Hi,
Some nails are well hit on the head here.
Ask yourself, where does it go wrong?
Too much interference at the recording venue? Lack of power of the SET amp? Speakers not efficient enough?
Music being produced or just recorded?
Maybe one day we'all realise that less can be more?
Cheers, 😉
I'm going to take another stab at this microdynamics definition...
It's the ability of an audio reproduction system to effortlessly and naturally reproduce low-level dynamic and related timbral details. These have to be present in the recording, of course.
--
The point that timbral changes need to match dynamic changes sounds good to me.
From what I've heard in systems I've had or used:
Why is it that transformer coupled circuits often seem to portray low level details more smoothly than RC or DC coupled circuits?
Why is it that triode amps w/ no NFB seem to do this better than the much more linear SS or pentode amps w/ NFB?
Why is it that the low level dynamics sound more exciting and natural from a top-shelf LP playback system than from CD, when the CD is supposedly many times more linear?
Why is it that SACD in a stock player does this a little better than CD, but not so well as a really good LP playback setup?
Is it all subjective? Maybe so. Especially since I know from direct experience that a judiciously used, high quality audio compressor can really bring 'sparkle' and 'life' to an otherwise blah-sounding recording. I used to think of compression as magic pixie dust on a recording. Recording engineers learn that it helps the recording 'gel.' It sounds more cohesive, less strained, less 'thin' or 'raspy.' And all the compressor is doing is making quiet sounds louder. It's a magical subjective effect when used well, but not what we think of as 'linear.'
I'll buy the idea that SET amps (no matter how good) act as really nice compressors. That would explain to me why they sound so good on chamber music, small group jazz, solo singer-songwriters, etc. But most SET's I've heard really can't do full-scale orchestral music very well... they make magic in the quieter sections, but cloud up when things get big, loud and complex.
Incidentally, while the legendary compressors from days of yore were tubed, some of the very best are solid-state.
--
Some nails are well hit on the head here.
Ask yourself, where does it go wrong?
Too much interference at the recording venue? Lack of power of the SET amp? Speakers not efficient enough?
Music being produced or just recorded?
Maybe one day we'all realise that less can be more?
Cheers, 😉
Maybe one day we'all realise that less can be more?
It is more than a music. Like, first flight was not a commute, it was a magic: "Wow! I Can Fly!"
The same here: "Wow! It is magic! It sounds real!
Hi,
Serial poster at work here....
Exactly.
To my mind and I've been convinced about this for at least thirty years, is to keep it (it being the recording/reproduction process) as simple as possibly can be.
The problem is a social one, not a technical one. Power, distortion, ego...that kind of thing.
I do empathize with those that long for SET amps and high efficiency horns, distortion be dammed. At least they'll get something right but not everything.
The everything is probalby a large part of the "produced" music.
Back to square one...
Cheers, 😉
Serial poster at work here....
Quote:
Someone's playing the drums im the neighboorhood. I immediately know it wasn't a recording. I'm at least a hundred meters away. How do I know?
Someone's playing the piano in their living room one floor up, window open. I pass by. I know it's not a recording. How come?
That's exactly the question I've asked over and over. The answer is certainly not compression and gobs of distortion.
Exactly.
To my mind and I've been convinced about this for at least thirty years, is to keep it (it being the recording/reproduction process) as simple as possibly can be.
The problem is a social one, not a technical one. Power, distortion, ego...that kind of thing.
I do empathize with those that long for SET amps and high efficiency horns, distortion be dammed. At least they'll get something right but not everything.
The everything is probalby a large part of the "produced" music.
Back to square one...
Cheers, 😉
Hey All,
Let me add up some of the conversation. Triodes are not linear. The peak of the wave form is higher on one half the cycle than the other, thinking about it that is the definition of 2nd order distortion. As we push the envelope a bit both peaks tend to round a bit, we call it compression. The lower level lower amplitude stuff in between retains its detail. Think a bit more, this is the definition of 3rd order distortion. I do think that compression/dynamic range and linearity or lack of it can define micro-dynamics. I do think the sonic signature (a screen shot of the amplifier’s FFT) may be a big step towards the technical definition of micro-dynamics as experienced with SET’s . Yes a topic prominent in this thread.
DT
All just for fun!
Let me add up some of the conversation. Triodes are not linear. The peak of the wave form is higher on one half the cycle than the other, thinking about it that is the definition of 2nd order distortion. As we push the envelope a bit both peaks tend to round a bit, we call it compression. The lower level lower amplitude stuff in between retains its detail. Think a bit more, this is the definition of 3rd order distortion. I do think that compression/dynamic range and linearity or lack of it can define micro-dynamics. I do think the sonic signature (a screen shot of the amplifier’s FFT) may be a big step towards the technical definition of micro-dynamics as experienced with SET’s . Yes a topic prominent in this thread.
DT
All just for fun!
I do think the sonic signature (a screen shot of the amplifier’s FFT) may be a big step towards the technical definition of micro-dynamics as experienced with SET’s .
It is exactly what we were doing with SY analyzing what to tweak in my Pyramid-V: changing signal level and observing products of distortions on computer's screen. Dynamic matters. Half of power... 2'nd harmonic grew up to -80 dB... going up... The 3'rd one appeared... 4'th one.... more... Grass! First stage needs to be adjusted!
There are two separate issues here.
One is the quality of the recording - mixing - mastering, which many times is disappointing.
The other is the quality of the audio reproduction gear.
To enjoy better the better recordings, it takes high quality audio reproduction gear – even when better reproduction gear exposes more the shortcomings of the not-so-good recordings.
To my taste, masking the shortcomings of certain recordings, while at the same time degrading the reproduction quality of the better recordings – is out of question.
One is the quality of the recording - mixing - mastering, which many times is disappointing.
The other is the quality of the audio reproduction gear.
To enjoy better the better recordings, it takes high quality audio reproduction gear – even when better reproduction gear exposes more the shortcomings of the not-so-good recordings.
To my taste, masking the shortcomings of certain recordings, while at the same time degrading the reproduction quality of the better recordings – is out of question.
It is exactly what we were doing with SY analyzing what to tweak in my Pyramid-V: changing signal level and observing products of distortions on computer's screen.
Sorry we're not neighbors anymore!
One is the quality of the recording - mixing - mastering, which many times is disappointing.
It is extremely hard to make it "appointing" such a way. Select hall with needed acoustic, place musicians and singers properly, put microphones (2 or 3, no more), and record at once. No mixing, no mastering. Mixing-matrixing and recording, that's it. It is the easiest way to make high-end sound.
There are two separate issues here.
One is the quality of the recording - mixing - mastering, which many times is disappointing.
The other is the quality of the audio reproduction gear.
To enjoy better the better recordings, it takes high quality audio reproduction gear – even when better reproduction gear exposes more the shortcomings of the not-so-good recordings.
To my taste, masking the shortcomings of certain recordings, while at the same time degrading the reproduction quality of the better recordings – is out of question.
sorry Joshua, but I can say no to all of it 😛
its a deception derived from crappy highend gear, like MarkLevinson etc
It is extremely hard to make it "appointing" such a way. Select hall with needed acoustic, place musicians and singers properly, put microphones (2 or 3, no more), and record at once. No mixing, no mastering. Mixing-matrixing and recording, that's it. It is the easiest way to make high-end sound.
I agree with your description of how a good recording should be made.
The point is that it's extremely difficult to make a really good recording with only 2 or 3 microphones.
Anyhow, be it easy or difficult, regrettably, most recordings aren't being done this way.
sorry Joshua, but I can say no to all of it 😛
its a deception derived from crappy highend gear, like MarkLevinson etc
Sorry, I fail to get what crappy "high end" gear has to do with what I wrote.
Sorry we're not neighbors anymore!
Who knows, my friend, who knows... The Earth is still round! 😉
I agree with your description of how a good recording should be made.
The point is that it's extremely difficult to make a really good recording with only 2 or 3 microphones.
Anyhow, be it easy or difficult, regrettably, most recordings aren't being done this way.
But it is possible. If it is not done such a way, it can't be a high-end recording.
By the way, thanks to SY I've found some good recordings today, and already ordered CDs.
Hi,
Excellent post. 😎
Whether one calls it DDR or microdynamics is irrelevant.
...snip...
Do we design audio to satisfy our measuring gear or to let us enjoy music?
Cheers, 😉
Some of us have golden ears, and others of us have ears of tin.
In addition to having ears which have suffered near 60 years of abuse and are none the better for it, I find that for me the setting up of proper unbiased and objective listening tests is time consuming and difficult to do properly.
Listening tests are indispensable at some point in the design of an amp, but measurements with instruments can speed the design process by allowing us to eliminate some undesirable characteristics early on.
My goal is to understand the relationship between harmonic distortion and other measurable parameters, and the correlation of these measurable parameters to acceptable and unacceptable sound reproduction.
Besides, I like playing with toys.
But it is possible. If it is not done such a way, it can't be a high-end recording.
Yes, it's possible.
Yes, it's top-end recording.
Regrettably, there aren't very many such recordings.
Linear measurements of such artificially sounding amps show nothing wrong, since measurement tools are not ears with brain, and do not follow sounds below noise level, and don't expect them to be like in the real nature. They ignore them assuming that distortions on such levels are inaudible. But they are, when their specter goes wider with decay!
That's why audiophiles prefer SE amps: not because of distorted fortissimo! They prefer them despite of distorted fortissimo for clean, fresh like a cold clean water, fine details, for goosebumping and breathtaking pianissimo, for sound of closes that violin player wears, sor sound of nails on strings, for the cool wind under the ceiling of a Cathedral!
Thankyou Anatoly for contributing one of the most insightful, dogma free posts on this thread.

That's exactly why I own and build SE AND PP amps. Which one I choose depends on mood, music and environment.
My goal is to understand the relationship between harmonic distortion ...
Screw them. Marketoid measurements. Observe behavior in dynamics, see laws of changes, and extrapolate what to expect beyond thresholds of measurements. That's it.
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