diyAudio

diyAudio (https://www.diyaudio.com/forums/index.php)
-   Digital Line Level (https://www.diyaudio.com/forums/digital-line-level/)
-   -   XMOS-based Asynchronous USB to I2S interface (https://www.diyaudio.com/forums/digital-line-level/188902-xmos-based-asynchronous-usb-i2s-interface.html)

zoka959 17th September 2011 11:37 AM

Lorien
do you have any aknowledgments do your board will work with CMP2 CPLAY
as ASIO driver
Zoran

Lorien 18th September 2011 12:08 PM

@zoka959: You made me curious so I'll make some test with Cplay and WaveIO next week. There are any specific settings you prefer to try?

@pcourtney: Regarding USB bus powering option, it will be available on next revision for "just in case" situations though, I doubt it will be any good using it. :shy: Moreover, I enounter a case when WaveIO wasn't able to work properly because the USB port (from a specific laptop) didn't source enough current (0.5A) and taking into account the fact the new revision will have 4 or more chips assembled on the card... :)

Regards,
L

Duwenbleidd 18th September 2011 11:37 PM

zoka959: It's working flawlessly, absolutely stable and no error messages.
While I'm at it - there has been a comparison with a competing product - KingRex UC192. Long story short, the difference was night and day. Three audiophiles other then me were present and they didn't have a clue which one actually should be better. They picked WaveIO as the better one just in few seconds.

zoka959 19th September 2011 08:52 AM

Duwenbleidd ,
thanks for valuable feedback.
Lorien,
thank you for support but as you see Duwenbleidd have positively run CPLAY over
WAVE IO.
My intention is to pull out cs8420 out of my BEHEINGER DCX2496
(upgraded with ak4396 , JENSEN passive ouput and POORSERBIANMAN LIGHTSPEED
ATTENUATOR) and try to make direct I2S input over Wave IO.
Any comments about it will be highly apriciated.
Zoran

Lorien 20th September 2011 12:56 PM

Looks like you wanna build a nice setup there! Frankly sepaking, WaveIO could help you feeding your AK DAC... I don't see any compatibility problems here so what I can say is: "hearing is believing" :)
If you have any doubs, simply ask.
L

zoka959 21st September 2011 07:55 AM

Lorien,
what I`m questioning myself is the matter will there be a problem if I2S is going
to be presented directly to ADSP21056L in Behringer and how WAVE IO is going to react with master clock of that has a place in between ADSP and AK DAC.
Zoran

zigzagflux 21st September 2011 05:08 PM

Second Zoka's questions. Very interested in interfacing I2S to DCX2496. I think the simple question of yes/no comes down to whether the XMOS resamples, such that I can input 16/44.1 by USB and output 24/96 by I2S. If this is not possible, then we are constrained to use SPDIF output and allow the CS8420 to provide upsampling.

Either way, it looks like this would be a great product to squeeze inside the DCX. Now to work out that external 5V supply. Maybe I could use the existing 5V logic supply...

Lorien 22nd September 2011 07:51 AM

I need to do...
 
.. few clarifications here. Since WaveIO card wants to be a bit-perfect USB to I2S bridge, it does not support sampling rate conversions (or other kind of processing techniques) so is something like WYSIWYG (What You See Is What You Get) at I2S outputs in limit of 24/192 (for now...)
Besides that, from what I know so far, the I2S bus from Behringer is driven by the DSP (I hope I'm right) acting as a Master. Moreover, the CS8420 is wired to "boot" with I2S port in slave-mode (SDOUT pin wired to GND). Well, WaveIO does not support slave mode thus it is only acts as a Master one (it generates the Bit-clock and Word-clock signals internaly). Though, it can be used as a USB-to-I2S bridge when is wired to the I2S input of CS8420 chip, if possible. I would not use the SPDIF path... I hate SPDIF :wchair:
Kind regards,
L

pcourtney 22nd September 2011 11:16 AM

Quote:

Originally Posted by Lorien (https://www.diyaudio.com/forums/digital-line-level/188902-xmos-based-asynchronous-usb-i2s-interface-post2714730.html#post2714730)
@pcourtney: Regarding USB bus powering option, it will be available on next revision for "just in case" situations though, I doubt it will be any good using it

Lorien, what I meant was an external PSU supplying your WaveIO card, not the laptop ( which sucks)

cheers
Peter

zigzagflux 22nd September 2011 12:32 PM

Quote:

Originally Posted by Lorien (https://www.diyaudio.com/forums/digital-line-level/188902-xmos-based-asynchronous-usb-i2s-interface-post2719895.html#post2719895)
I hate SPDIF

Agreed, that's why I am interested in using I2S. Just need to figure out how. I'll look into the CS8420 options for a different input signal.


All times are GMT. The time now is 11:53 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 17.65%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Copyright ©1999-2020 diyAudio

Wiki