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Post by JKCashin on Jul 10, 2020 17:32:34 GMT -5
The product information page for the XMC-2 has a bunch of logos, specifically, these:  In the following replies I have broken out each logo and explained what I think it's for, and invite you to correct me so we can have a one-stop place for these logos. Some of the text includes clickable links for things like company websites |
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Post by JKCashin on Jul 10, 2020 17:32:44 GMT -5
LIVE-AV  This is an Emotiva trademark, and refers to the ability in the XMC-2 and similar processors to make changes to settings affecting sound, and hear the change right away without having to save or back out of the menu Why should I care? This is a very nice feature to have. In the XMC-1, some menu settings did not do this, so you could not easily compare the effect of a change. This featire allows you to toggle a setting from one value to another, then back, and immediatly hear the effect, helping you to decide which setting to keep.
32 BIT / 384K HIGH-RES AUDIO  The processors are capable of supporting high resolution audio (see Wikipedia article) up to 32 bit depth, at 384K samples per second. Thats 4,294,967,296 discreet amplitude levels, taken at a sample rate of 393,216 samples every second. Why should I care? Higher numbers = better! Seriously though, support for this bit-depth and sample rate means you don't have to worry about digital artifacting affecting the sound you hear from your sources. This is many orders of magnitude beyond introducing coloration that any human would be able to discern.
SHARC  SHARC is the name of the audio processor chips provided by Analog Devices Corporation. More info can be found hereWhy should I care? These are the state-of-the art audio processing chips. There may be better chipsets out there, but you won't hear the difference, you'll only feel it in your pocketbook. Thanks to klinemj for helping me out with that one!
VELVET SOUND  Audio digital-to-analog conversion is performed by AKM AK4490 Verita DACs. Velvet Sound is a trademark of AKM. The technology is explained at VelvetSound.AKM.comWhy should I care? This one actually goes along with SHARC... it's one of the technologies used by Analog Devices in the audio processing chain, and is from a user standpoint is just a trademark for some of the magic in the chips.
9.1.6  One of the Dolby surround sound formats. referring to a speaker layout with nine "bed layer" channels, one subwoofer channel, and six "height" channels. For more information, see Dolby 9.1.6 setup guideWhy should I care? This one just tells you the maximum Dolby ATMOS format that is supported by the processor. You may choose to set up for 7.1.4, or 5.1, but you will always have the flexibility of using all 16 channels the processor supports and go to full 9.1.6 |
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Post by JKCashin on Jul 10, 2020 17:32:59 GMT -5
Dirac  From the Dirac Website, Dirac is a "state-of-the-art digital room correction technology that employs a sophisticated analysis of your speakers and listening room to optimize the speakers' overall audio performance and remove sound colorations introduced by the room." Why should I care? Dirac is the only room correction system that corrects in the time domain (mixed phase correction) as well as the frequency domain. It is considered by many to be the best room correction system available.
dts X  dts-X is an object based surround sound format from dts corporation. Why should I care? Less common than DOLBY ATMOS, this is still a desirable 3D audio format to have as some BluRay releases do support it.
DOLBY ATMOS  DOLBY ATMOS is an object based surround sound format from Dolby Laboratories. More info can be found here. Why should I care? This is the most commonly supported 3D audio format out there, and the only one currently supported by streaming services, including Tidal audio streaming, so you want this if you want 3D audio.
4:4:4 CHROMA SUBSAMPLING  Chroma Subsampling is a method of discarding some color information to provide a form of video signal compression. The theory is that the human eye is more sensitive to brightness (luminance) than color (chrominance) so this compression should go unnoticed. The degree of subsampling might be expressed with numbers like 4:2:0, or 4:2:2, but 4:4:4 indicates no compression, i.e., the video signal is processed without subsampling compression. So 4:4:4 is a good thing. I have somewhat oversimplified it, but if you want to dig deeper, Crutchfield has an excellent article on it here. And here's the key info from that article in case it disappears some day: Why should I care? This means your processor will pass through any video signal it receives as uncompressed 4:4:4 to your fancy TV. |
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Post by JKCashin on Jul 10, 2020 17:33:16 GMT -5
DOLBY VISION  DOLBY VISION is a HDR (High Dynamic Range) technology from Dolby Laboratories. More information can be found here. Why should I care? My bias will show here... I don't consider this a must-have, but it's very nice to have. Dolby Vision is just one of several HDR formats that your Emotiva processor supports, but not all content provides it, not all devices support it, and TV support for this is still limited (but will improve.)
4K UltraHD  Paraphrasing the Wikipedia article, this is the logo for: Why should I care? Not quite the latest version of the HDMI standard, but only one version removed. You want a minimum of HDMI 2.0 and HDCP 2.2 to support the latest TVs. HDMI 2.1 would be nice, as it offers eARC, which would allow you to bring uncompressed Dolby ATMOS content from your television back to the processor, but that is all that is lacking currently.
HDMI  According to the Wikipedia article, HDMI is: Grossly oversimplified, it's a way to connect audio and video between devices Why should I care? If you want to connect any modern input source to your processor, you need this. |
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DYohn
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Post by DYohn on Jul 10, 2020 17:50:37 GMT -5
The logos mean the use rights fees have been paid to the appropriate organizations to use their technology.
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Post by JKCashin on Jul 10, 2020 18:04:10 GMT -5
The logos mean the use rights fees have been paid to the appropriate organizations to use their technology. Indeed, but to us, the consumer, they represent compliance. For HDMI, and Dolby Atmos, that's something I understand. But I created this thread because I didn't know what some of the logos, such as SHARC, represented. I have since updated the entries to add a " why should I care" line for each |
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klinemj
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Post by klinemj on Jul 10, 2020 18:19:45 GMT -5
LIVE-AV View AttachmentThis is an Emotiva trademark, and refers to the ability in the XMC-2 and similar processors to make changes to settings affecting sound, and hear the change right away without having to save or back out of the menu
32 BIT / 384K HIGH-RES AUDIO View AttachmentThe processors are capable of supporting high resolution audio (see Wikipedia article) up to 32 bit depth, at 384K samples per second. Thats 4,294,967,296 discreet amplitude levels, taken at a sample rate of 393,216 samples every second.
SHARC View AttachmentI have no idea what this is - If anyone knows, please tell me and I will update this page.
VELVET SOUND View AttachmentAudio digital-to-analog conversion is performed by AKM AK4490 Verita DACs. Velvet Sound is a trademark of AKM. The technology is explained at VelvetSound.AKM.com
9.1.6 View AttachmentOne of the Dolby surround sound formats. referring to a speaker layout with nine "bed layer" channels, one subwoofer channel, and six "height" channels. For more information, see Dolby 9.1.6 setup guide"SHARC" refers to a specific type of processor they have in the units. The others are pretty commonly used so you should be able to find any you have not heard of with a Google search. Mark |
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Post by JKCashin on Jul 10, 2020 18:30:23 GMT -5
"SHARC" refers to a specific type of processor they have in the units. The others are pretty commonly used so you should be able to find any you have not heard of with a Google search. Mark Excellent.... that was the info I needed! Thanks |
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DYohn
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Post by DYohn on Jul 10, 2020 19:38:13 GMT -5
The logos mean the use rights fees have been paid to the appropriate organizations to use their technology. Indeed, but to us, the consumer, they represent compliance. For HDMI, and Dolby Atmos, that's something I understand. But I created this thread because I didn't know what some of the logos, such as SHARC, represented. I have since updated the entries to add a " why should I care" line for each "Compliance" is not always a good assumption. Or rather I should say how much compliance. Many of the technologies referenced have a number of different levels of compliance, and unless the company displaying the logo tells you, the consumer has no way of knowing what the unit might be able to do. So displaying the logo only means that the use fees have been paid. You ahve to dig much deeper if you care about specific capabilities. By the way I used to work in the compliance testing lab for THX, and can tell you that back in the early 90's there were many pieces of gear that performed far below the ideal spec that sported the THX logo, because they had paid the fee. |
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Post by 405x5 on Jul 10, 2020 20:42:19 GMT -5
The product information page for the XMC-2 has a bunch of logos, specifically, these: View AttachmentIn the following replies I have broken out each logo and explained what I think it's for, and invite you to correct me so we can have a one-stop place for these logos. Some of the text includes clickable links for things like company websites They mean every day I get closer to dumping everything and getting a record player. Bill |
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Post by markc on Jul 11, 2020 2:36:24 GMT -5
The product information page for the XMC-2 has a bunch of logos, specifically, these: In the following replies I have broken out each logo and explained what I think it's for, and invite you to correct me so we can have a one-stop place for these logos. Some of the text includes clickable links for things like company websites They mean every day I get closer to dumping everything and getting a record player. Bill Not for me! I want all of this fancy technology to able to properly play the "high rez" Vinyl "rips" that owners have "kindly" shared for the benefit of those without decks. I can benefit from their 24bit 192kHz preservation of the crackles, wow, flutter, limited sonic range and special mastering (merely done to allow audio to fit onto a set of grooves in plastic with the mastering/compression set to not overload the capability of the format.) These home "rips" are much better than the HD tracks studio masters or CD (joke)  |
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Post by AudioHTIT on Jul 11, 2020 5:28:57 GMT -5
Nice roundup! Just one correction I noticed, you say “As an example, the current Apple TV 4K does not support Dolby VIsion”. Indeed it does, in fact there’s a huge library of DV material to watch on TV4K, many of them have Dolby Atmos too (which it also supports).
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Post by AudioHTIT on Jul 11, 2020 5:42:34 GMT -5
... "SHARC" refers to a specific type of processor they have in the units. Or the nickname of my favorite bartender at Legends Bar & Grill in Park City, I think though it might refer to his hunting skills and be spelled with a K, the ladies have little chance. |
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Post by ottaone on Jul 11, 2020 7:38:25 GMT -5
Nice roundup! Just one correction I noticed, you say “As an example, the current Apple TV 4K does not support Dolby VIsion”. Indeed it does, in fact there’s a huge library of DV material to watch on TV4K, many of them have Dolby Atmos too (which it also supports). TIL that ATV4K will work with YouTube 4K! Nice. |
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Post by JKCashin on Jul 11, 2020 7:45:54 GMT -5
Nice roundup! Just one correction I noticed, you say “As an example, the current Apple TV 4K does not support Dolby VIsion”. Indeed it does, in fact there’s a huge library of DV material to watch on TV4K, many of them have Dolby Atmos too (which it also supports). Thanks, I will correct that! |
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Post by amped on Jul 11, 2020 8:47:02 GMT -5
Thank you for the LOGO Id's...But you did forget one:
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Post by AudioHTIT on Jul 11, 2020 9:14:20 GMT -5
Nice roundup! Just one correction I noticed, you say “As an example, the current Apple TV 4K does not support Dolby VIsion”. Indeed it does, in fact there’s a huge library of DV material to watch on TV4K, many of them have Dolby Atmos too (which it also supports). TIL that ATV4K will work with YouTube 4K! Nice. I’ve heard it may be supported in tvOS 14 |
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novisnick
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Post by novisnick on Jul 11, 2020 9:58:16 GMT -5
Thank you for the LOGO Id's...But you did forget one:
The most self-explanatory logo to never be found on any of your gear! |
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Post by simpleman68 on Jul 11, 2020 15:11:48 GMT -5
Dirac From the Dirac Website... Why should I care? Dirac is the only room correction system that corrects in the time domain (mixed phase correction) as well as the frequency domain. It is considered by many to be the best room correction system available.
Wavelet DSP from Legacy (Bohmer Audio) also corrects for both, though priority is given to the time domain. 
"Analog Devices, internal processing sample rate 96kHz, bit depth 56 bits"
Scott
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