exaU2I - Multi-Channel Asynchronous USB to I2S Interface - Page 105

DjSinae · 08:41 PM

Quote:

Originally Posted by greggp

It would be nice if you had a mixer panel with a feature that lets you speed up or slow down the audio so you had perfect lip-sync. I know some of the player apps have this feature, but not all of them do. If you use Windows Media Center for watching DVDs and Blu-rays, you can't make these adjustments.

this need to be done in the media players since it will playback audio before video..

The best is to have less latency in the chain..
I think i'm gonna go with Lynx AES16... low latency and jitter.. not async
and a dac with good jitter handling like ES9018.

exa065 · 15th March 2012, 09:06 PM

Quote:

Originally Posted by DjSinae

good i think RME soso SQ is because of the dacs they use and not the usb to dac implementation.. they offer also bitperfect playback but i guess when enable it bypass the internal dsp mixer..

as for processing power, i guess the only way would be to compare them side by side on the same machine.

Your product seem interesting.. im trying to find a way to have a low latency active system (FIR crossover and DRC) with audiophile SQ(dac, usb to i2s) without have to buy the Deqx HDP-4

it's a mess.. it's seems there is no low cost alternative.. sad

In your case the latency is an issue during the recording of the impulse response. Since you have RME, you can use it during the recording stage. Once you have the filter files, the latency won't matter. You just get a delay from the moment the audio stream leaves the player to the moment it hits the DAC. Thus has nothing to do with group relays in the room or in the speakers. Convolution is one way process and it actually can be done offline.

exa065 · 15th March 2012, 09:16 PM

Quote:

Originally Posted by greggp

It would be nice if you had a mixer panel with a feature that lets you speed up or slow down the audio so you had perfect lip-sync. I know some of the player apps have this feature, but not all of them do. If you use Windows Media Center for watching DVDs and Blu-rays, you can't make these adjustments.

I agree, it is about time to do that.

DjSinae · 15th March 2012, 09:20 PM

Quote:

Originally Posted by exa065

I agree, it is about time to do that.

is this possible? In my opinion, the only way is thru the player since you will have to delay video playback or forward audio in the player?

exa065 · 09:31 PM

Once again, the issue is not latency itself, the issue is the lack of recording ability on the same clock.

People do successful room correction with Slim Devices Squeezbox. How much is the latency over WiFi?

We don't mess with the phase, please be careful with what you are saying. We have customers that have achieved a successful room correction with J River convolver and also with Reaper.

exa065 · 15th March 2012, 09:28 PM

Quote:

Originally Posted by DjSinae

is this possible? In my opinion, the only way is thru the player since you will have to delay video playback or forward audio in the player?

Our ASIO drivers report latency to the player. It is part of the ASIO standard. The synchronization is usually a feature of the player.

DjSinae · 15th March 2012, 09:31 PM

Quote:

Originally Posted by exa065

Our ASIO drivers report latency to the player. It is part of the ASIO standard. The synchronization is usually a feature of the player.

Sorry hihi i forgot about asio latency compensation.. didn't know media players supported this..

DjSinae · 15th March 2012, 09:33 PM

Quote:

Originally Posted by exa065

We don't mess with the phase

i never said you mess with the phase... i said IIR filters in current crossover offering (like minidsp) mess with the phase and that we need a low cost, low latency FIR solution soon.

exa065 · 15th March 2012, 09:34 PM

Sorry, I misunderstood you.

johnmarkp · 22nd March 2012, 07:01 PM

I just finished hooking a exaU2I to a Buffalo III. I am using JRiver as my server on a dedicated machine. The build was easy, the directions where spot on and the driver installed in seconds.
I am still trying to decide what I think of the sound. The combo has a scary amount of detail with no one part of the spectrum dominating the whole. It just seems to lack some of the emotional involvement of my Rega Saturn / BIII setup. I am wondering if the exaI2U takes time to break in like analog components. (those who do not believe in such things need not reply)

Also, what do people think about using higher cost USB cables? Right now I am just using a generic cable.

John

15th March 2012, 09:26 PM	#1045
exa065 diyAudio Member Join Date: Feb 2011	Once again, the issue is not latency itself, the issue is the lack of recording ability on the same clock. People do successful room correction with Slim Devices Squeezbox. How much is the latency over WiFi? We don't mess with the phase, please be careful with what you are saying. We have customers that have achieved a successful room correction with J River convolver and also with Reaper. __________________ exaDevices.com \| exaSound.com Last edited by exa065; 15th March 2012 at 09:31 PM.

15th March 2012, 09:34 PM	#1049
exa065 diyAudio Member Join Date: Feb 2011	Sorry, I misunderstood you. __________________ exaDevices.com \| exaSound.com

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Ultimate USB to I2S interface	sampler	Digital Source	206	30th January 2012 03:45 PM
High Resolution Multi-Channel Digital Interface	Brian Brown	Digital Source	34	15th January 2008 06:48 PM
interface I2S with USB	mermoz	Digital Source	0	21st February 2003 10:34 AM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

22nd March 2012, 07:01 PM	#1050
johnmarkp diyAudio Member Join Date: Apr 2004 Location: Wisconsin	I just finished hooking a exaU2I to a Buffalo III. I am using JRiver as my server on a dedicated machine. The build was easy, the directions where spot on and the driver installed in seconds. I am still trying to decide what I think of the sound. The combo has a scary amount of detail with no one part of the spectrum dominating the whole. It just seems to lack some of the emotional involvement of my Rega Saturn / BIII setup. I am wondering if the exaI2U takes time to break in like analog components. (those who do not believe in such things need not reply) Also, what do people think about using higher cost USB cables? Right now I am just using a generic cable. John