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- Users: KeithEmo
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Testing audiophile claims and myths
I'm jumping in late here... but it seems to me that the ENTIRE point has been missed. If you want to make an analogy between images and sound then the color range of a JPG image is NOT a good choice. The main issue with lossy compression is NOT the EQ or frequency range of the music - although...- KeithEmo
- Post #16,666
- Forum: Sound Science
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Testing audiophile claims and myths
First let me admit that I sort of skimmed the video.... I did watch all of it... but not all carefully. First - I agree with you entirely - there is no reason for "a more expensive cable" to be able to do ANYTHING better than a cheap cable in terms of actually transmitting the signal to the...- KeithEmo
- Post #15,220
- Forum: Sound Science
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Testing audiophile claims and myths
I would agree - provisionally. Some audio circuit designs are very sensitive to even minor variations in supply voltage. However, some circuit designs are virtually immune to them, and can tolerate huge variations in supply voltage with to measurable change in performance. The specification...- KeithEmo
- Post #13,718
- Forum: Sound Science
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Testing audiophile claims and myths
That makes perfect sense to me. With analog sources it's quite possible for a noise like a tick or pop to very briefly exceed the maximum level of the normal signal - by a very significant margin. A tick or pop coming from a vinyl album may also contain very high levels of very high or even...- KeithEmo
- Post #13,717
- Forum: Sound Science
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Testing audiophile claims and myths
Let me try to clear up a few things. A balanced signal does not include a "hot" and "cold" signal - even though they are sometimes described that way. The (+) signal is a full level in-phase signal and the (-) signal is a full level signal that is inverted (exactly 180 degrees out of phase with...- KeithEmo
- Post #13,712
- Forum: Sound Science
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Testing audiophile claims and myths
I agree entirely... to a point. You have no absolute reference.... but at least you have a relative reference.... and that works for you in two ways. 1) If you have some favorite music that you always use when auditioning equipment then, even though you may not know what that music sounded...- KeithEmo
- Post #13,701
- Forum: Sound Science
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Testing audiophile claims and myths
There are a whole bunch of little "DSP boxes" with a variety of purposes. The popular "Mini DSP" boxes, which are really just general purpose audio DSP boxes you can load a variety of software on, can be loaded with a variety of filters and software - including crossover filters, room correction...- KeithEmo
- Post #13,697
- Forum: Sound Science
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Testing audiophile claims and myths
That's been my experience. I would note that the different streaming services vary wildly in terms of what they have available. The new Amazon Music service seems very good - and has lossless files. Spotify probably still has the best coverage - but their sound quality is sometimes lacking...- KeithEmo
- Post #13,677
- Forum: Sound Science
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Testing audiophile claims and myths
I don't get your comment. At least so far, I can stream all the music I want, AND own actual copies of the stuff I really care about. If you're referring to the fact that we always seem to get screwed by somebody, at least if they can figure out a way to make a few extra bucks... that isn't...- KeithEmo
- Post #13,671
- Forum: Sound Science
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Testing audiophile claims and myths
I'd have to say that I fall firmly on BOTH sides of this one. I personally NEVER read the liner notes on CDs. If I'm curious about the details I generally just Google them. Therefore, when I acquire a new CD, it immedlately gets ripped, and the plastic gets tossed into the closet in a box...- KeithEmo
- Post #13,669
- Forum: Sound Science
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Testing audiophile claims and myths
To a degree you are correct.... however there are major differences between video and audio.... and, in the end, I expect them to make a significant difference there. What you have described about "what we all expected cable to become" is actually largely what it has become. My cable service...- KeithEmo
- Post #13,665
- Forum: Sound Science
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Testing audiophile claims and myths
INTERESTING STATISTICS ABOUT MUSIC SALES..... https://www.statista.com/chart/17244/us-music-revenue-by-format/ https://www.statista.com/statistics/188822/lp-album-sales-in-the-united-states-since-2009/ https://www.statista.com/chart/13578/vinyl-resurgance-style-over-substance/...- KeithEmo
- Post #13,663
- Forum: Sound Science
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Testing audiophile claims and myths
That's what I would expect based on their description. According to what they say, their process burns the same data onto the disc, but does so using a slightly more "conservative" physical format. As with most specs, the Red Book CD standard sets a minimum and maxiumum range for pit and gap...- KeithEmo
- Post #13,651
- Forum: Sound Science
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Testing audiophile claims and myths
That sounds like a good - and readily available - solution.- KeithEmo
- Post #13,639
- Forum: Sound Science
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Testing audiophile claims and myths
Amazingly - some people just like to know how the stuff they use actually works. However, in this case, a lot of people seem to have less favorable experiences with CDs than you have. (Which tends to make many people even more interested in how they work - and the details about why sometimes...- KeithEmo
- Post #13,638
- Forum: Sound Science
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Testing audiophile claims and myths
Those are excellent questions... Your first question is actually trickier than it sounds. Because of how it works, the error correction on CDs is able to repair single relatively serious flaws, but can be "overloaded" by a large number of smaller flaws. This suggests that it's a good idea to...- KeithEmo
- Post #13,633
- Forum: Sound Science
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Testing audiophile claims and myths
That is INCORRECT... interpolation (otherwise known as error concealment) always results in artifacts, simply because it does not deliver the correct data, but those artifacts may or may not be obvious or audible. A section of a CD that is too badly damaged for the drive to track will either...- KeithEmo
- Post #13,628
- Forum: Sound Science
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Testing audiophile claims and myths
For most people, it is uncommon for this to happen, and you may never experience it. However, whether it is likely to occur depends on the particular disc player you have, and on how you treat your discs, Data is stored on a CD in the form of a track comprised of alternating spots that are...- KeithEmo
- Post #13,626
- Forum: Sound Science
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Testing audiophile claims and myths
You are partially correct..... but you have made an over-generalized claim. A CORRECTIBLE error, once corrected, is simply no longer an error.... so it will not be audible at all (because it is simply no longer there). However, an UNCORRECTIBLE error, or a series of uncorrectible errors, which...- KeithEmo
- Post #13,620
- Forum: Sound Science
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Testing audiophile claims and myths
For anyone interested in RIPPING SACDs...... You are quite correct.... until recently about the only way to RIP SACDs was to modify and hack a PlayStation or actually modify one of a few other SACD players. HOWEVER, the Oppo 103/105 can also be used to RIP SACDs (that's the last model before...- KeithEmo
- Post #13,603
- Forum: Sound Science
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Testing audiophile claims and myths
You are absolutely correct.... it is extremely unlikely that a CD will ever play without some errors (probably many errors). In fact, CD-R and DVD-R media is assumed to have errors, and the quality rating for it specifies the acceptable number of errors-per-second (BER) - among other things...- KeithEmo
- Post #13,601
- Forum: Sound Science
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Testing audiophile claims and myths
I think you're missing the point of the claim itself..... If the "turntable style CD player" fails to clamp the CD tightly, then it will probably vibrate as it spins (surprisingly - many CD transports are not built to very tight tolerances). And, if the CD vibrates too much, it could cause the...- KeithEmo
- Post #13,594
- Forum: Sound Science
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Testing audiophile claims and myths
I am slightly confused about one thing you said.... The W4S DAC2 offers a choice between several filters.... and, as I recall, one was claimed to be the most accurate. However, because a reconstruction filter is required for the DAC to perform properly, there is no option to choose not to use...- KeithEmo
- Post #13,593
- Forum: Sound Science
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Testing audiophile claims and myths
I'm not sure who you're replying to... but I absolutely agree with you there. With current technology, we are ABLE to measure virtually anything with more precision and accuracy than human hearing, so anything which is audible should certainl;y be measurable. The catch is that sometimes the data...- KeithEmo
- Post #13,592
- Forum: Sound Science
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Testing audiophile claims and myths
I agree entirely.... Phenomena like jitter cover a huge range of possible variations.... from slow clock drift over tens of seconds to modulation products that may occur at tens of kHz.... and from specific waveforms, to purely random, to data-correlated. - I wouldn't necessarily expect 100...- KeithEmo
- Post #13,585
- Forum: Sound Science