John Curl's Blowtorch preamplifier part III

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Nothing could have finer granularity than a set of continuous sinewaves - each infinitely narrow in bandwidth. I don't know why you are so afraid of sine waves, given that you mentioned them (fundamental and harmonics).

mmerrill99 said:
Ok, example - FFT grass is plotted at -130DB - is the noise floor of the DUT -130DB?
-130dB is of course a ratio, not a value, but let us assume that we have agreed a reference level. -130dB in an FFT plot means that in the bandwidth of the frequency bin there is noise at the -130dB level. To say that the noise floor of the DUT is -130dB does not tell you anything without a bandwidth. Anyway, it is likely that the bandwidth of the DUT is much wider than a bin so the noise floor will be higher than -130dB. Noise depends on bandwidth, whether you measure in the frequency domain or the time domain.
 
Is there evidence that that sort of thing is likely to happen?

I've already said I don't know, the brain using brain power? What do you want from me? ;) BTW, I see you've mastered the Socratic method :)
I wasn't really looking for an answer - just trying to get you to consider your original question in a different light/different understanding, perhaps?

Is "auditory perception" a little man in your brain who knows things? Does it talk to you? Does it tell you things?
Seriously, please leave homunculi out of it, there is not a being called "auditory perception" that "knows" anything.

Jeez, this is as bad as picking on my use of the word "technicolor"
The use of the word "knows" is because the ongoing task that auditory perception is achieving is categorizing the incoming granular sound events into meaningful sound streams that correspond to physical objects in the real world. Much the same as the job of visual perception creates an internal visual scene & visual streams which correspond to objects in the real world

So to answer your question - no, it's not a little man & yes it does know things - lots of things about the behavior of sound objects in the real world"
Yes, it tells you things - lots of things about the real world objects

Did anybody read the chapter from Diana Deutsch that Nelson linked to? This is all pretty much answered there
 
Of course they use tones (sinewaves) but that doesn't mean that a sinewave is the smallest granular level at which auditory processing operates

Maybe I'm the one that is wrong in all of this but anyway, I can see there is no point in discussing further - case closed

Merrill,

So you are admitting you have no argument? How old are you? Old enough to know better ..... perhaps. You would be better off listening, as listening is both an activity and a skill you need to cultivate in order to survive here.

If you do reply, just leave out the vile language will you?

ToS
 
If mp3 is the best it can do.....well, ya know :D

This MQA thing, is that based on Fourier transform?

They don't publish much real info on their money grubbing scheme, but the lossy codec portion is almost certainly built on the fundamentals of MP3 and similar, which rely on the MDCT and FFT.

Trying to conflate the validity of the generalized Fourier Transform with the performance of a lossy audio codec that happens to utilize an implementation of it is beyond pointless.
 
They don't publish much real info on their money grubbing scheme, but the lossy codec portion is almost certainly built on the fundamentals of MP3 and similar, which rely on the MDCT and FFT.

Trying to conflate the validity of the generalized Fourier Transform with the performance of a lossy audio codec that happens to utilize an implementation of it is beyond pointless.

Yah.....gotta watch that conflation! ;)

I’m curious just to see if it does any better than FLAC for streaming.....it’s free with my tidal hi-fi just don’t have a capable dac.
 
Yah.....gotta watch that conflation! ;)

I’m curious just to see if it does any better than FLAC for streaming.....it’s free with my tidal hi-fi just don’t have a capable dac.

Well, FLAC is lossless. MQA isn't. It does better for streaming in only that it has a lower bitrate.

If you have a philosophical problem with MP3 then you should have a problem with MQA.

It's a scheme to allow Meridian to collect fees while locking people into their ecosystem and a failing streaming service (Tidal).
 
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So to answer your question - no, it's not a little man & yes it does know things - lots of things about the behavior of sound objects in the real world"
Yes, it tells you things - lots of things about the real world objects

This is not just a matter of ill-chosen words, you are positing the existence of a "thing" that knows, which is somehow not you but is "inside" you. This is a very old trope and is simply wrong. You are the thing that knows. What you are calling "auditory perception" is a process, perhaps purely physiological, perhaps not, but a part of your brain function. It does not know anything, because it is not a thing that exists apart from you. This is a very slippery slope that has led to a lot of bad ideas.

case closed

Works for me.
 
Well, FLAC is lossless. MQA isn't. It does better for streaming in only that it has a lower bitrate.

If you have a philosophical problem with MP3 then you should have a problem with MQA.

It's a scheme to allow Meridian to collect fees while locking people into their ecosystem and a failing streaming service (Tidal).

My problem with mp3 isn’t philosophical it’s strictly performance based.

MQA uses ADPCM for compression?

Tidal doesn’t lock you into MQA it just offers the option on available tracks....(edit)...at no extra cost.) I hope tidal doesn’t fail I really like it.
 
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The reality is that you, and most of the world (including audiophiles) probably can't hear the difference between uncompressed audio and a high bitrate MP3 with normal music. It's not worth arguing over, though. That horse has been beaten to death years ago.

You are almost certainly paying for MQA as a part of your subscription fees, anyway.

Well, if MQA uses standard ADPCM, then you should be even more concerned about performance. For a quick comparison, use Foobar2000 or similar to encode a WAV file at 128 kbps with ADPCM and then compare to MP3 at the same bitrate and let me know what you think of the ADPCM file...
 
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