USB to I2S 384Khz - DSD Converter - Page 114 - diyAudio
Go Back   Home > Forums > Commercial Sector > Vendor Forums > Vendor's Bazaar

Vendor's Bazaar Commercial Vendors large & small hawking their wares

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
Reply
 
Thread Tools Search this Thread
Old 14th January 2013, 09:44 PM   #1131
diyAudio Member
 
Join Date: Apr 2011
I use Buffalo III, with amanero.
My understanding is that :
- you get worse jitter rejection setting PLL in the highest direction.
- it Is easier to get unlocks at higher sampling rate content
- also Buffalo DAC tends to have random unlocks that decrease with warm up.

In my experience I like the sound of the dac, and I think it sounds better with amanero than with toslink.
I am not very happy with the unlock issue, I rather listening to lower sample rate content than getting The PLL input worse.

I think it is a buffalo thing, more than something about amanero.
  Reply With Quote
Old 14th January 2013, 10:59 PM   #1132
glt is offline glt  United States
diyAudio Member
 
Join Date: Oct 2004
Yes, in theory you get worse jitter rejection with higher DPLL bandwidth
Yes, it is easier to get unlocks with higher sampling rate
Yes, the "random" unlocks decrease with warm up

You can solve by setting DPLL to "best" (although no one really knows what "best" is)

It is a Sabre32 chip thing rather than a "Buffalo thing"
__________________
www.hifiduino.wordpress.com
  Reply With Quote
Old 14th January 2013, 11:21 PM   #1133
diyAudio Member
 
Join Date: Apr 2011
Hi GLT,

If is a Sabre32 thing, can it be improved with a better source?
Do you know if Ian's reclocking DIY kit solves this problem?
Does using an arduino controller improves the situation?
Can you ear sound degradation when playing with de PLL setting, beside unlocks?


Best
  Reply With Quote
Old 15th January 2013, 02:09 AM   #1134
Malvin is offline Malvin  United States
diyAudio Member
 
Join Date: Jan 2006
Location: New York
+1 GB4
  Reply With Quote
Old 15th January 2013, 05:41 AM   #1135
glt is offline glt  United States
diyAudio Member
 
Join Date: Oct 2004
Quote:
Originally Posted by charly chile View Post
Hi GLT,

If is a Sabre32 thing, can it be improved with a better source?
Do you know if Ian's reclocking DIY kit solves this problem?
Does using an arduino controller improves the situation?
Can you ear sound degradation when playing with de PLL setting, beside unlocks?


Best
Improved but not eliminated with better source. But can be eliminated by feeding the clock from the source. Ian's recloking does that well. (You disable the clock in Buffalo and feed the clock from the FIFO clock board.
The arduino controller "can" improve the situation by letting you choose the DPLL bandwidth. If you set it to "BEST", then there is no unlock problem
No one (that I know off) have reported sound degradation with DPLL settings, but people have reported sound improvement with synchronous operation
__________________
www.hifiduino.wordpress.com
  Reply With Quote
Old 15th January 2013, 11:08 AM   #1136
diyAudio Member
 
Join Date: Apr 2011
Thanks for your views!
  Reply With Quote
Old 15th January 2013, 04:50 PM   #1137
gioz is offline gioz  Italy
diyAudio Member
 
gioz's Avatar
 
Join Date: Jul 2008
Quote:
Originally Posted by glt View Post
Likely. How were you using the BII before? SPDIF input? SPDIF works with the DPLL set at "lowest"
With spdf input without problems, whit audiowidget (I2s) I've some problems, I hope to solve with amanero ;-)
  Reply With Quote
Old 16th January 2013, 09:54 AM   #1138
diyAudio Member
 
Join Date: Feb 2006
Location: UK
Quote:
Originally Posted by glt View Post
The arduino controller "can" improve the situation by letting you choose the DPLL bandwidth. If you set it to "BEST", then there is no unlock problem
No one (that I know off) have reported sound degradation with DPLL settings, but people have reported sound improvement with synchronous operation
I have played around with the settings of the various parameters that can be changed in the Sabre chip and the only ones that seem to make any audible difference subjectively appear to be the DPLL Bandwidth settings.
In my system, subjectively the sound appears to get thinner and bass reduced as I go from the highest DPLL Bandwidth to the Lowest but clarity and focus seem to remain unchanged. May be additional jitter manifests itself subjectively as more bass? Strange I know this is a bit off-topic but are there any other subjective experiences out there?
  Reply With Quote
Old 16th January 2013, 10:13 AM   #1139
Account disabled at member's request
 
Join Date: Sep 2007
Location: Multiple...
Quote:
Originally Posted by themystical View Post
I have played around with the settings of the various parameters that can be changed in the Sabre chip and the only ones that seem to make any audible difference subjectively appear to be the DPLL Bandwidth settings.
In my system, subjectively the sound appears to get thinner and bass reduced as I go from the highest DPLL Bandwidth to the Lowest but clarity and focus seem to remain unchanged. May be additional jitter manifests itself subjectively as more bass? Strange I know this is a bit off-topic but are there any other subjective experiences out there?
I would expect you are running either a 80 or 100MHz clock...
With synchronous master clock the DPLL and jitter remover settings have little or no impact on the fidelity in my setup.
Quantizer and filter settings are the ones that matters for fidelity...

Lower jitter = deeper bass and better defined bass.
Thus I expect your system may have jitter or noise issues.

Last edited by RayCtech; 16th January 2013 at 10:20 AM.
  Reply With Quote
Old 16th January 2013, 10:27 AM   #1140
diyAudio Member
 
Join Date: Feb 2006
Location: UK
Quote:
Originally Posted by RayCtech View Post
I would expect you are running either a 80 or 100MHz clock...
With synchronous master clock the DPLL and jitter remover settings have little or no impact on the fidelity in my setup.
Quantizer and filter settings are the ones that matters for fidelity...

Lower jitter = deeper bass and better defined bass.
Thus I expect your system may have a jitter issues.
Perhaps deeper, better defined bass is perceived by me as less bass.
There probably are noise issues (in the electronic measurement sense) in my system as I use a lot of valves including in the output stage of the DAC
Yes running with a 80MHz clock. Not yet tried synchronous but probably worth exploring.
As a matter of interest, which quantizer setting gives you the best subjective fidelity. Does this align with 6bT apparently giving the best theoretical SNR and THD? What filter settings do you use?

Last edited by themystical; 16th January 2013 at 10:55 AM.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
HLLY USB SPDIF/ I2S CONVERTER kp93300 Digital Source 12 29th January 2012 02:55 PM
exaU2I - 32bit/384kHz Multi-Channel Asynchronous USB to I2S Interface exa065 exaDevices 0 11th November 2011 11:41 AM
$40 USB to I2S converter sharpi31 Digital Line Level 7 12th July 2009 04:09 PM


New To Site? Need Help?

All times are GMT. The time now is 01:49 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2