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Post by rixtergonzo on Oct 13, 2010 15:58:51 GMT -5
Has the USB bitrate limitation been confirmed? I spoke to Lonnie about this when I was at Emofest. Lonnie sent me to Eric in engineering. Eric told me the USB only supported max. 16/48. I was hoping that it would support at least 24/96 on the USB because I am moving away from CD transport to computer based audio. I believe that computer based audio is one of the big reasons for the renewed interest in DAC's. Still, I plan to buy an XDA-1 because it does support 24/192 on the SP/DIF and at $300 it is a great value. OK. So how do I play a 24/96 FLAC file from PC in bit perfect to the XDA-1? |
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Post by rockguitar on Oct 13, 2010 15:59:11 GMT -5
Has the USB bitrate limitation been confirmed? I spoke to Lonnie about this when I was at Emofest. Lonnie sent me to Eric in engineering. Eric told me the USB only supported max. 16/48. I was hoping that it would support at least 24/96 on the USB because I am moving away from CD transport to computer based audio. I believe that computer based audio is one of the big reasons for the renewed interest in DAC's. Still, I plan to buy an XDA-1 because it does support 24/192 on the SP/DIF and at $300 it is a great value. This is very disappointing as previously the information was that USB would support 24/192. See e.g. the very last post on this page of emotivalounge.proboards.com/index.cgi?board=media&action=display&thread=12059&page=3 There are other times posted in the forum when we have been lead to believe that USB would support 24/192. Oh well. Bummer  |
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Post by rixtergonzo on Oct 13, 2010 16:12:26 GMT -5
I spoke to Lonnie about this when I was at Emofest. Lonnie sent me to Eric in engineering. Eric told me the USB only supported max. 16/48. I was hoping that it would support at least 24/96 on the USB because I am moving away from CD transport to computer based audio. I believe that computer based audio is one of the big reasons for the renewed interest in DAC's. Still, I plan to buy an XDA-1 because it does support 24/192 on the SP/DIF and at $300 it is a great value. This is very disappointing as previously the information was that USB would support 24/192. See e.g. the very last post on this page of emotivalounge.proboards.com/index.cgi?board=media&action=display&thread=12059&page=3 There are other times posted in the forum when we have been lead to believe that USB would support 24/192. Oh well. Bummer More on USB support of 24/196 at: emotivalounge.proboards.com/index.cgi?board=preampdac&action=display&thread=12973&page=6 |
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iceman66
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"You miss 100% of the shots you don't take" The Great One
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Post by iceman66 on Oct 13, 2010 16:22:23 GMT -5
So you have your XDA-1 for a month without the incoming samplerate display and it sounds great, better then anything you have ever heard, you get the firmware update that adds the incoming sample rate display and lo and behold it IS being downsampled before it hits the XDA, does it now sound not as great as before? Maybe I should post this to the mystery thread... You missed the point of the original post. To answer your question... "does it now sound not as great as before?" Obviously, it would still sound the same. But the point is, that seeing the rate displayed would be a very helpful tool to those of us who are moving to computer based audio. Seeing the rate displayed would help as one tries to configure their playback software/computer to output bit perfect audio stream. I understand the point and am not disagreeing, in fact I to am disappointed that the XDA will not show input sample rate, I was just being a  |
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Post by Fede on Oct 13, 2010 16:44:25 GMT -5
I think it is important that Emotiva make an official statement about the usb capability of the XDA-1 and to make it clear in the web page, emotiva has a reputation about being honest and straightforward, in their amp ratings and other things, but the web page of the xda-1 is confusing at best with statements like "Bit Depth: Standard bit depths up to 24Bit are supported at clock frequencies up to 192kHz".
You must be clear on what each input can do so that users can make an informed purchase, I know it is a bummer that the time when the xda was designed 24/96 on usb was not the standard, but right now there are many DACs that handle it for affordable prices as the xda, (hlly, audio-gd, music streamer II, etc, etc). But even if the xda is lacking in this department, the buyers deserve to be informed about the real features of the otherwise very very good product. I know that you've heard about the tenor and other usb reciever chips that will do the 24/96 without custom drivers for you in the next xda, but please correct your web page so that is clear for all of us.
Thanks again for a great company and great products, there are very few companies like yours and there should be more, keep up the good work.
An emotiva fan.
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Post by regulator on Oct 13, 2010 17:25:22 GMT -5
So what's the final answer?
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Post by sharkman on Oct 13, 2010 17:35:14 GMT -5
Many will not be expecting the option I am about to submit since with most companies it is just not possible.
Here goes. You could simply phone Emotiva and get a real live person if you are interested in features of the XDA. I am not kidding, you will get a live person to discuss things with.
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Post by roadrunner on Oct 13, 2010 18:00:03 GMT -5
We will need Lonnie to tell us what the USB is able to do. I also asked Eric, at Emofest, if he knew what the bit rate for the USB port on the XDA will be. He told me, that he was NOT sure but he thought it was 16/48. Later that day, Lonnie said it would support up to 24/192 on all ports. Where Eric was not certain, and Lonnie seems to have confirmed it will handle 24/192 so I am leaning toward the latter. It would be nice tho if Lonnie would chime in and give us the "official" capabilitiy.
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Lonnie
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admin
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Post by Lonnie on Oct 13, 2010 18:04:42 GMT -5
We will need Lonnie to tell us what the USB is able to do. I also asked Eric, at Emofest, if he knew what the bit rate for the USB port on the XDA will be. He told me, that he was NOT sure but he thought it was 16/48. Later that day, Lonnie said it would support up to 24/192 on all ports. Where Eric was not certain, and Lonnie seems to have confirmed it will handle 24/192 so I am leaning toward the latter. It would be nice tho if Lonnie would chime in and give us the "official" capabilitiy. The last I saw because I haven't done it myself was 24/192 but Eric had to do something on the computer to port it out. I think he loaded a 3rd party software, but I am not 100% certain on that. Since I am leaving town early tomorrow morning, I sent him an email to jump in here and let everyone know what he did.  |
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Post by blessingx on Oct 13, 2010 20:22:53 GMT -5
To complicate things this is what I received in an email (asked before my last post) from a rep (not Eric)...
"Hello Richard with the appropriate 3rd party software on your computer you may playback 24 bit 96khz files from your computer. Vox is software of choice for the Windows side of the world for instance.
Most computers software will only allow 48khz maximum.
Thank you for your support."
A little confused as some software wouldn't be restricted to 24/96 either, but if this is a sign the XDA-1 will handle up to 24/96 over USB, that would be great. Fingers crossed.
If this is correct, my next question would be is there native/locked 24/88.2 (twice 44.1 CD/half 176.4 HRx) support properly fed? Not every chip does.
Mind drifting to possible Amarra or Pure Vinyl use? Hmmmm.
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Post by malibujeff on Oct 13, 2010 21:37:58 GMT -5
Vox is software of choice for the Windows side of the world for instance. Vox ?? |
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ratmice
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Post by ratmice on Oct 13, 2010 22:45:46 GMT -5
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Post by morgain on Oct 14, 2010 6:07:06 GMT -5
I think this would be a great addition for a next firmware upgrade ;D I also would like to be definately sure about the input bit and sample rate! So you have your XDA-1 for a month without the incoming samplerate display and it sounds great, better then anything you have ever heard, you get the firmware update that adds the incoming sample rate display and lo and behold it IS being downsampled before it hits the XDA, does it now sound not as great as before? Maybe I should post this to the mystery thread... No ofcourse it wouldn't make the sound less great when you would see the incoming sample rate after a firmware upgrade, but when you notice a not expected lower incoming sample rate, it will actually show you that can make the sound even better than it allready sounded  And also if at all the sound might not be as great as expected, it can help you a bit in troubleshooting the cause. PS I love mysteries so please show me that thread, I'll probably feel right at place there  |
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Post by Nemesis.ie on Oct 14, 2010 9:53:32 GMT -5
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Post by rclark on Oct 16, 2010 2:02:41 GMT -5
Um, I'm confused on this point, why won't the DAC display bits? I mean, isn't that like a cd player not displaying track listings? I don't understand why such a seemingly fundamental feature is being ommitted? How will you know for sure what you're getting? By ear? Is this something that can be updated later?
For me it's not immediately crucial as for the time being I'm strictly ERC-1 to XDA-1 but when I do add a hi-res music server I want to be able to display bitrate. Also, we're coming to understand that the unit does not do hi-res over the USB, without some special software, is that correct?
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Post by jannick on Oct 16, 2010 7:02:54 GMT -5
If native 24/192 is not possible, a solution might be to use something like www.m2tech.biz/hiFace.asp to go from usb->sp/dif. Havn't tried the unit myself yet, but it has received a lot of good reviews. Supposedly it's gives less jitter than usb, and prevents a galvanic connection between the pc and the dac. |
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Post by rixtergonzo on Oct 16, 2010 10:40:18 GMT -5
There is no reason why USB cannot handle 24/192 unless the XDA-1 itself cannot. Computer Audiophile has good info on USB DACs using J River and the ASIO4All universal ASIO driver for Windows that enables sending digital audio directly to the USB DAC. www.computeraudiophile.com/content/Windows-7-Audio-J-River-Media-Center-14-ConfigurationIn that article, Computer Audiophile has used DACs that display incoming bit-rate to verify that Windows/driver are setup correctly and outputting a bit-perfect stream. |
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MikeWI
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Post by MikeWI on Oct 16, 2010 11:28:35 GMT -5
If native 24/192 is not possible, a solution might be to use something like www.m2tech.biz/hiFace.asp to go from usb->sp/dif. Havn't tried the unit myself yet, but it has received a lot of good reviews. Supposedly it's gives less jitter than usb, and prevents a galvanic connection between the pc and the dac. I didn't see cost or how to order on that link: www.m2tech.biz/hiFace.aspMike |
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Post by jannick on Oct 16, 2010 16:15:40 GMT -5
If native 24/192 is not possible, a solution might be to use something like www.m2tech.biz/hiFace.asp to go from usb->sp/dif. Havn't tried the unit myself yet, but it has received a lot of good reviews. Supposedly it's gives less jitter than usb, and prevents a galvanic connection between the pc and the dac. I didn't see cost or how to order on that link: www.m2tech.biz/hiFace.aspMike I guess you will have to find a local importer. In Denmark we can get it from www.vassagohifi.com/products/m2tech/m2tech.html for about $149. We have high taxes and VAT, so would assume a lower price elsewhere. |
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ddhd
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Post by ddhd on Oct 17, 2010 11:49:51 GMT -5
Does anyone know if this dac will convert an hdcd codex? I know the erc-1 does.
Thanks
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