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Post by igorzep on Jan 23, 2016 17:56:53 GMT -5
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Post by igorzep on Nov 23, 2015 9:59:06 GMT -5
sometimes going from track to track in normal succession listening. It kind of sounds like the sound the stylus makes through the speakers when it makes initial contact with the vinyl. It's only a split second and then everything sounds great, but, what an annoying split second!!! Welcome to the club of annoyed by the digital-zero-silence bug... This is a known issue, but unfortunately there is too little hope for a fix.
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Post by igorzep on Nov 23, 2015 9:46:31 GMT -5
UPDATE: I have narrowed this issue down to just the two Mode Selector buttons and the Music & Movie Mode buttons on the remote. I can successfully change the mode by clicking Menu > Main Zone > Surround Mode > and selecting a mode from the list. So, I have a workable solution for now. I can confirm that I have the same issue. I thought I had been able to 'fix' it by changing mode configuration from Stereo to Auto and back to Stereo. It worked OK for a while but the problem returned back again.
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Post by igorzep on Oct 22, 2015 5:31:55 GMT -5
Sorry for the confusion but "Loudness Compensation" is the industry standard term for Fletcher-Munson frequency compensation. Dolby unfortunately chose to use"Loudness" in the name for their unrelated dynamic range compression scheme. Not much I can do about it. Isn't it actually named "Dolby Volume" by the Dolby?
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Post by igorzep on Sept 17, 2015 17:32:09 GMT -5
While Emotiva gets a 'B' with this review... Considering XMC-1 can't play some of the Stereophile's own test tracks correctly did you expect 'A' rating? The 'B' is already too inflated. To me Stereophiles already lose credibility with letting components having such bugs to appear on their 'recommended' list.
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Post by igorzep on Sept 4, 2015 16:57:02 GMT -5
Therefore, we have concluded that this is probably being caused by the code in one of the DSPs - which is hard-coded into the DSP itself. Then asking TI why their chips/code are losing some samples from an audio stream could help. They should be working on bug-fixing their code too. Since most recordings use dithering, very few song tracks actually have stretches of digital zeros which would trigger this behavior Then I am very lucky to get all of them that don't dither... at least the space in between tracks is undithered quite often. Some TV channels too seems not to bother dithering gaps in between scenes when mixing audio for them. 4) We did receive two sample files which exhibit a rather worse problem - where there are significant dropouts at certain points in the test pattern. These dropouts are far more unpleasant and noticeable than a split second of silence. However, while we've been able to confirm that these occur with the XMC-1, and also confirm that our other DACs seem able to play the files OK, we have NOT been able to confirm that sort of problem with any music files we have. Could you share them or explain how it sounds? May be it is related to the loud high-frequency static noise I sometimes hear on loud scenes on some TV channels... I wasn't yet able to investigate where is the source of the problem (seems complicated to do as always happens at unexpected time). It is really far more unpleasant, but as it is from TV I am unable to record the stream to be able to reproduce/investigate it. But it hasn't happened with other AVR connected the same way before. It mainly happens on National Geographic HD set of channels - audio tracks with russian translation. So you hardly will be able to get them too. If it is the same issue and you have the test files to replicate... then it is another issue that happens in real life too.
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Post by igorzep on Sept 4, 2015 15:38:36 GMT -5
No, for the same reason that saying 37 people said yes doesn't prove that every XMC has this bug. That was my point. But if you randomly select several devices from different batches starting from the beginning of it's production, test them for presence of the issue with a well reproducible test and this test shows that all of them are affected... There is very high probability that all other units, or at minimum most of them behave the same way. This is my point. That doesn't change the fact that you seem to be experience much more frequent problems than the average XMC user May be I just the most vocal of them
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Post by igorzep on Sept 4, 2015 15:27:16 GMT -5
Tell me how to reproduce the pops and clicks and I'd be happy to contribute what I can to help figure out what is causing it. www.dropbox.com/sh/2q4m7uaqeze3wy1/AAAUMF329LNBHLz3Ihg5bfaPa?dl=0The test files that demonstrate the zero-samples bug are there. The "chromatic scale" is the synthetic test but the most revealing one (as it has zero-samples repetitive over short amount of time). If you play it bit-perfectly you will easily hear pops and skips (most of the low-frequency part of chirps are skipped). Two other files are cuts of CD so the pause between track is in between. There are two quiet clicks on XMC-1 when track transitions and also audible skip of the beginning of next track. While clicks are quiet they are still very vell audible in noiseless environment, Dirac on, Loudness on even at moderate listening levels. At noisy daytime it might be that clicks become inaudible, but when they are and this happens between every track on a CD... this becomes extremely annoying. Also when it happens 5 times in a row in 10 seconds when commercials change on a TV - it gets way too disturbing. Also on XBMC (and I believe some users reported on XBOX happens something similar) when navigating the menu feedback sounds gets distorted or skipped at all. Sometimes I get a few feedback ticks from the XBMC through XMC-1, but mostly there is just silence instead of them (XBMC with WDM Exclusive mode configured to infinitely keep the connection to the sink open). Did you say Emo can reproduce it? If so, then I would suspect a firmware fix is coming. Yes, they can. KeithL confirmed he tried it on several of their units and can reproduce it on all of them and it is neither source, transport nor mode dependent. About the fix... his response is not so promising. If he has any good news and can comment on this it would be very welcome.
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Post by igorzep on Sept 4, 2015 15:01:36 GMT -5
What bandwagon? Where have I harped ad nauseum on DSD thumping? Where have I insisted that everyone has the issue? When I said about "we are waiting for this set of problems to be fixed"... I've included the DSD thump too. Actually I know at least 4 problems leading to thumps/clicks/pops (whatever one names them) at different times and of different loudness/character (three of them are confirmed to be general problem, fourth one - I don't know the reason yet). You said you don't have any problems and attacked me with unpleasant jokes. So, you don't want the DSD thump to be fixed too. Just a logical conclusion. So, I am leaving your bandwagon as you don't care. I still care about three other issues.
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Post by igorzep on Sept 4, 2015 13:59:03 GMT -5
DSD thumping is the only thing I've gotten I don't have this problem, sorry... I would jump on your bandwagon if I had it (forgetting to tell "but I didn't even tried to listen a single SACD"). It is your personal problem and please do not tell me about it. I don't want to know about it. I don't want to hear about it. It is not the XMC-1 problem. As I don't experience it it is probably your XMC-1 is broken.. or compatibility problem. Sorry. Very sorry. I don't know how to apologise more. My english is not so perfect, but I would if I can.
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Post by igorzep on Sept 4, 2015 13:42:56 GMT -5
If your literally getting problems every day something is going on in your particular case. A lot of you guys watching National Geographic HD channels with russian track? But it really often the case with Compact Discs. And every time I check it is the zero-samples that cause this. And zero-samples are confirmed to cause problems with the XMC-1. It is NEITHER compatibility NOR my particular unit problem.
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Post by igorzep on Sept 4, 2015 13:36:35 GMT -5
37 people said yes, but how many said no? Does it matter? Unless it's zero I don't know how you can say with any certainty that this plagues every XMC. Test files are specifically exist for this. It is not zero because not everyone get's to conditions where it shows itself. Is this a compatibility issue with a certain device? The zero-sample bug that disturbs me the most is a bug in the XMC-1 and not a compatibility issue - it is reproducible with any source that is able to pass content bit-perfectly (Windows WDM mixer drivers surely are not) and through any digital input (HDMI, S/PDIF, USB). KeithL confirmed that. Also several XMC-1 users who bothered to test (or already get noticed the problem but wasn't sure it is XMC-1). Only one user to date claimed that his unit is able to reproduce chromatic scale test without trouble, but I suspect it wasn't bit-perfect transport. Everyone else bothered to test instead of blind denying were able to reproduce it on their XMC-1s. There is DSD bug that is probably a compatibility issue with some devices, but nobody (except Emotiva) knows where the bug actually is - in the XMC or those third-party devices... It is claimed to be fixed in next firmware, but I personally not affected as I don't have any DSDs. It's just weird. I listen to a lot of different sources in a lot of different formats and I've never witnessed anything like this. You are lucky. Those bugs are content related. Good mix usually doesn't expose this. And if you only deal with good mixes (most blu-ray movies are). But not every mix is perfect (and a lot of CDs are problematic, also TV content, especially translated one - original tracks are usually good, but translation often done not as good)... And for me, as I told - there is no day in front of the XMC-1 without the problem being audibly exposed.
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Post by igorzep on Sept 4, 2015 13:17:36 GMT -5
Much of your harping is also when using test files and in the real world most folks don't sit around listening to test files. And please stop collectively-aggressively distribute lies about me! Every day I use the XMC-1 I experience the problem. All with real content. On real music files. On TV. The only days I don't hear it is when I don't use XMC-1. And NO, I don't listen test files every day... except that (some of) those music files I find exposing the problem are becoming test files. One of the files is a cut from the Led Zeppelin CD, as you might guess from my nick name I really listen this music and this is not only 'test file' for me!
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Post by igorzep on Sept 4, 2015 13:09:16 GMT -5
I'm saying don't use "we" as if you're speaking for everyone, as though this problem exists for everyone. It doesn't. The problem exists with every XMC-1 unit. KeithL knows about it and confirmed it. 37 people voted that all kinds of those clicking/popping problems are disturbing for them! And this is only those who know about this forum and bothered to find the topic and vote. So I have all right to use "WE".
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Post by igorzep on Sept 4, 2015 13:05:24 GMT -5
Can't help it if I get no chirping. I am truly sorry for that. Maybe it's because I find test files so boring. I waste my time with movies and music. Old fashioned I guess. One more example of how rude Emotiva evangelists can be. So. For everyone. If you buy Emotiva product, find a problem with it, then dare to mention it... This is what you will get in response... Lies and tries to humiliate you. As in this case. For you, geebo. You know very well that I want to waste my time with movies and music and enjoy clean undistorted sound... but instead of that I am presented with a device that suddenly distorts the sound with clicks, skips... I have to present test files (most of those ARE MUSIC, you should know this too)... And I worked on a software product company and know how good test is important - no way to test - no problem fixed, once there is good test - problem is fixed. As simple as that. We were really thankful to those customers that sent us good test. Here I get instead ugly dirty jokes and disrespect. For hard work that NOBODY ELSE have done. All this to make YOUR unit better. You like to live in sh** and tell how good it smells? You deserve it!
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Post by igorzep on Sept 4, 2015 11:53:10 GMT -5
"We?" Speak for yourself. Honestly... Emotiva fanboy sect is the most annoying one I had ever met in my life. Trying to collectively-aggressively convince me there are no problems by stating they do not exists serves nothing except irritating me (and A LOT of other people who HAVE problems using the XMC-1, the survey shows there are many, and the reality is that every XMC-1 is affected by those problems, just some users evangelists prefer to be blind and ignorant of them and disdainful of those who experience the problem when they themselves were just lucky not to meet the problem (probably just yet). I find all those denying comments rude and disrespectful. All those people who find those XMC-1 problems (and they are well reproducible and known by Emotiva) annoying get exactly nothing useful from your denying response. If you do not want the problems of the XMC-1 be fixed - better be silent than rude.
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Post by igorzep on Sept 4, 2015 7:41:38 GMT -5
Under what circumstances are the problems you are experiencing with the XMC-1 occurring? Described it here
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Post by igorzep on Sept 4, 2015 6:47:25 GMT -5
А lot of people are not as lucky as you are and find it quite worrisome.
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Post by igorzep on Sept 4, 2015 5:40:17 GMT -5
Of course, you can get poor performance out of any chip, no matter how good it is, if you implement it poorly; and there are some DAC chips which themselves perform poorly enough that no amount of implementation is going to help them. There is a tendency these days for a manufacturer to brag about using such and such a DAC chip - as if that proved how good their finished product would sound; sadly, it doesn't always ring true. Our DC-1 and our XMC-1 owe their great performance more to excellent design and proper testing than to a brilliant choice of DAC chips. And the analog part is only part of the game. As XMC-1 does DSP as well those exactly can be said about the digital part of the chain. And here XMC-1 falls not so well into the 'excellent design and proper testing' category. And currently it's analog performance is spoiled by digital bugs... So, we are all waiting until all those well audible sudden popping/clicking/cutting noises and distortions are fixed (thanks the software can be easily upgraded contrary to the hardware).
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Post by igorzep on Aug 28, 2015 13:32:33 GMT -5
Just reporting...
URC-7557 POWER TOGGLE, BASS/TREBLE UP/DOWN
Success. For those interested, the key codes extracted (EFC5,EFC,OBC,HEX):
POWER toggle 00240 240 221 44 BASS up 00183 183 2 BF BASS down 00187 187 3 3F TREBLE up 00181 181 0 FF TREBLE down 00185 185 1 7F
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