- Thread Starter
- #81
I presume this would be corroborated in a comparative spectral density estimation?
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Timbral Quality of DAC Output Signals
- Thread starter Audicron
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Timbre is the characteristic overtone/harmonics structure of an instrument. As the simplest search could tell you.
Timbre - Wikipedia
Blowing up the word into something audio reproduction technology allegedly has or does, and then without a proper, widely agreed on definition, only muddies language and serves no purpose.
- Thread Starter
- #83
Timbre is also a psychophysical perception...Timbre is the characteristic overtone/harmonics structure of an instrument. As the simplest search could tell you.
Timbre - Wikipedia
en.wikipedia.org
Blowing up the word into something audio reproduction technology allegedly has or does, and then without a proper, widely agreed on definition, only muddies language and serves no purpose.
- Thread Starter
- #85
Psychophysics - Wikipedia
Explain in this context. Use your brain and write.Psychophysics - Wikipedia
kemmler3D
Master Contributor
This is a person who apparently thinks frequency response measurements are inadequate to demonstrate that a DAC can reliably render changes in pitch. If not a troll, beyond help. Let's all move on.
- Thread Starter
- #88
Nothing more to explain... extrapolate this into the context of your statement.
MatrixS2000
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Correct, but since we don’t have access to the original recording (and this is a huge hole in your logic), we can never compare directly. Instead, we use measurements like THD+N, SINAD, etc. to assess whether the DAC is transparent or not. Case closed.I presume this would be corroborated in a comparative spectral density estimation?
Spectral density estimation - Wikipedia
- Thread Starter
- #91
Not true... and you are reframing the context regarding Timbre with this blanket statement about 'pitch'
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- Thread Starter
- #92
Okay... I am wondering if a segment of digitized music were used as the comparative source-signal rather than a frequency sweep, would more be revealed in the spectral density estimation...
oleg87
Addicted to Fun and Learning
He's a troll, but it's good to at least address what I often see as common misapprehensions made by non-technical non-trolls.
The analogy to acoustic instruments is one I often see lead people down the wrong path, because it seems tempting to assume a choice of capacitor in the signal path is somehow akin to a choice of tonewood or perhaps the material for a loudspeaker enclosure. Of course, it does not work that way (unless a piece of equipment is heroically misdesigned).
The analogy to acoustic instruments is one I often see lead people down the wrong path, because it seems tempting to assume a choice of capacitor in the signal path is somehow akin to a choice of tonewood or perhaps the material for a loudspeaker enclosure. Of course, it does not work that way (unless a piece of equipment is heroically misdesigned).
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MatrixS2000
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Well, per my earlier post — a transparent DAC doesn’t add or remove anything you can hear from the digital input to the analog outputs. So whether you use a frequency sweep or digitized music as the source, the result is the same: a transparent DAC shows no measurable difference. You’ve now closed your case too.
- Thread Starter
- #95
Okay... Who is trolling who?
Lots of insinuating presumptions, and misinterpretations and reframing of context...
If you folks are presuming that I am challenging you and your insights... You are wrong... the cognitive bias is overwhelming.
Lots of insinuating presumptions, and misinterpretations and reframing of context...
If you folks are presuming that I am challenging you and your insights... You are wrong... the cognitive bias is overwhelming.
- Thread Starter
- #98
I agree in theory... How do we implicitly define a transparent DAC platform output signal, without investigating the spectral density of this energy? Is a simple sine-wave frequency sweep telling the whole story?
MatrixS2000
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You are ignoring all the other measurements used - THD+N, SINAD, IMD etc. When all of these measurements show performance below the threshold of audibility, we have empirical proof of transparency. Spectral density is one measurement, but not the only proof of transparency. Don't rely on a single measurement as proof of transparency, particularly when you lack access to the original reference signal needed to make the measurement useful.
kemmler3D
Master Contributor
This exists and has been used for this purpose frequently... https://deltaw.org/ go to town...
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