iDSD micro Black Label. Tour details (page 147). Release info (page 153).
Aug 19, 2015 at 6:31 PM Post #2,058 of 4,252
As promised....
 

Flavours of Firmware 5.0 for DSD256

Vanilla, Strawberry or Choc Chip?
 
 

 
The DSD DoP Revolution – iFi Firmware v5.0 ushers in a new era
At iFi, when we say we develop our software in-house, we really mean it. This time, with Firmware version 5.0 (and its sub-versions) we have gone above and beyond because:
 
1) Firmware v5.0 ‘Vanilla’ optimises DSD via DoP to give it equal performance; freedom from clicks and sound quality on par with native DSD (which was up to now, only available on Windows). While the 30% data overhead of DoP is retained, special code optimisation in the iFi firmware brings it level with ASIO native. Sonically, both protocols are now equally good.
 
2) Special sub-version firmware v5.0A ‘Strawberry’ that enables DSD256 via DoP (on nano iDSD and micro iDAC2 ONLY). Supports DSD256 on all major computer platforms including Smartphones and Streamers as well as computing platforms like Windows, OSX and Linux.
 
3) Additional Sub-version firmware 5.0B ‘Choc Chip’ (for micro iDSD only) to disable sleep mode for Android and similar devices. Thus prevents the micro iDSD from drawing charge from recent generation Android Phones/Tablets/Phablets. Also prevents any click/pop generated by the micro iDSD’s entering sleep mode.
 
For detailed instructions and the download files, please follow this link:
http://ifi-audio.com/downloads/
 
Happy Easter!
wink_face.gif

 
FW5.0Flavourstable-19August2015.pdf 62k .pdf file
 
 
 
1Background. The DSD DoP Evolution
DoP DSD is known for inherently creating noise when switching between PCM and DSD-DoP tracks and back. This problem has been addressed at the source by some but not all playback software - hence, much available software when playing DSD, struggles. So we at iFi have taken it upon ourselves to think ‘outside of the (PC) box’ to resolve this upstream issue at the downstream firmware level for all our DSD capable devices. In a process that took over a year, we have resolved the many areas where the differences between DSD-DoP and PCM make switching an annoyance.
 
Additionally, DoP is often cited as offering a lower sound quality. By adjusting core code and the clocking system in the firmware, this point is now moot – as we eliminated the hit on processor utilisation by DoP vs. native DSD playback. So choose native DSD or DoP-DSD with the confidence that either will deliver the same great DSD sound quality and user experience. Just like DSD and PCM, we like one as much as the other.


 
iFi audio Stay updated on iFi audio at their sponsor profile on Head-Fi.
 
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Aug 21, 2015 at 2:11 AM Post #2,059 of 4,252
 
3) Additional Sub-version firmware 5.0B ‘Choc Chip’ (for micro iDSD only) to disable sleep mode for Android and similar devices. Thus prevents the micro iDSD from drawing charge from recent generation Android Phones/Tablets/Phablets. Also prevents any click/pop generated by the micro iDSD’s entering sleep mode.

 
 
As a clarification, in "off" mode the iDSD micro will always draw as much power as it is allowed to, which can be up to 1.5A to charge the battery.  
In battery mode the iDSD micro "tests" the power source before charging in sleep mode. When it was developed most smartphones could only provide 100mA current to USB Devices attached. 
 
So if the source voltage collapses when drawing more than 100mA the iDSD micro takes this as evidence that it is attached to a smartphone or similar device and will not charge.
 
Since Smartphones and Tablets have appeared that provide 500mA or even more on their USB Ports. In this case the iDSD micro has no way of telling what it is attached to and may draw up to 500mA. 
 
If the Device manufacturer of the Phone and/or Tablet has allowed the port to offer more than 500mA current and has set the appropriate detection, the iDSD micro will detect this as "downstream charging port" and will thus attempt to draw as much charging current as possible.
 
If you have this combination, please load Firmware 4.10 which disabled "sleep mode" for this reason, however be aware that this causes the SPDIF input to become inoperable as long as a USB Source is connected.

 
I updated to FW v4.10 and now it does what I want it to when connected to my Note 3 (4.4.2) and without using the OTG Lock app. When connected in battery mode, the micro does not go into sleep (LED always on) and does not go into charging mode. The FW update also fixed the problem I was having with garbled transmission after pausing the music for more than a few seconds. I can now pause seemingly indefinitely and resume playback without any issues. Thanks, iFi!

 
What changes have been made between v4.10 and v5.0B on the micro iDSD? As I understand it, v4.10 already disables sleep mode when connected to portable devices (Android/iOS). If I'm using ASIO for native DSD with a PC (don't need it for my smartphone), is there any benefit for me in upgrading to Choc Chip?
 
Aug 21, 2015 at 4:43 AM Post #2,060 of 4,252
   
What changes have been made between v4.10 and v5.0B on the micro iDSD? As I understand it, v4.10 already disables sleep mode when connected to portable devices (Android/iOS). If I'm using ASIO for native DSD with a PC (don't need it for my smartphone), is there any benefit for me in upgrading to Choc Chip?

 
Just a few minor tweaks from 4.10 to 5.0. Sorry cant divuge the inner workings as others are watching.
 
The 5.0B is dis-able to dis-able sleep mode for certain Android devices.
 
Cheers.
 
iFi audio Stay updated on iFi audio at their sponsor profile on Head-Fi.
 
https://twitter.com/ifiaudio https://www.instagram.com/ifiaudio/ https://ifi-audio.com/ https://www.youtube.com/@iFiaudiochannel comms@ifi-audio.com
Aug 21, 2015 at 4:45 AM Post #2,061 of 4,252

iFi will rock your Mac world

Double-click for DSD256 DoP on OS X
 

 
 
The DSD DoP Revolution – and updater now on OS X
 
A few days ago, we launched the special Firmware version 5.0 (and the sub-versions). We incorporated an ‘Easter Egg;’ we have coded three separate iFi dmg files for updating the 3 ‘flavours’ of firmware on OS X.
 
1) Firmware v5.0 optimises DSD via DoP was launched a few days ago to give it equal performance; freedom from clicks and sound quality on par with native DSD (which was up to now, only available on Windows). While the 30% data overhead of DoP is retained, special code optimisation in the iFi firmware brings it level with ASIO native. Sonically, both protocols are now equally good.
 
2) Special sub-version firmware v5.0A that enables DSD256 via DoP (on iDSD nano and iDAC2 micro). Supports DSD256 on all major computer platforms including Smartphones and Streamers as well as computing platforms like Windows, OSX and Linux. Further, there is lso sub-version 5.0B is for micro iDSD only to disable sleep mode for Android and similar devices[1].
 
3) iFi Firmware update on for MAC which introduces the much requested option to update the specific firmware not only via Windows PC but also using Mac OSX. Making iFi one of only a handful of companies to develop a proprietary Mac OS X firmware update application.
 
[1] Thus prevents the iDSD micro from drawing charge from recent generation Android Phones/Tablets/Phablets. Also prevents any click/pop generated by the iDSD micro entering sleep mode.
 


 
 
Not everyone spotted the Easter Egg which was the dmg files.
 

 
So if you are a MAC OS X user (you need 10.10.0 or later - so quite a recent version of OS X).
 
MACFirmwareupdatetov5.0.pdf 119k .pdf file
 
 
Note:
The Firmware is 'built-into' the dmg file. So, one must select the correct 'flavour' of firmware dmg file to upgrade.
 
Unlike Windows where one does a 'browse.'
 
If you are a MAC person, no need to source a Windows PC.
 
We hope you like it as it was a little bit of work (heck, otherwise there would be loads of dmg files out there.) 
wink_face.gif




 
iFi audio Stay updated on iFi audio at their sponsor profile on Head-Fi.
 
https://twitter.com/ifiaudio https://www.instagram.com/ifiaudio/ https://ifi-audio.com/ https://www.youtube.com/@iFiaudiochannel comms@ifi-audio.com
Aug 21, 2015 at 4:49 AM Post #2,062 of 4,252
Just a few minor tweaks from 4.10 to 5.0. Sorry cant divuge the inner workings as others are watching.
 
The 5.0B is dis-able to dis-able sleep mode for certain Android devices.
 
Cheers.

 
Not asking you to divulge trade secrets. But basic functionality changes that affect the user, that you should be able to tell us?
 
To clarify, if v4.10 already disables sleep mode for my Android device (and I don't need DSD DoP functionality), then there's no reason to upgrade to v5.0B, correct?
 
I'm of the "if it ain't broke, don't fix it" camp. Cuz in my experience, "fixing" often results in "breaking".
 
Aug 21, 2015 at 5:22 AM Post #2,063 of 4,252
Just updated firmware from 4.10 to 5.0 ....... all I can say is WOW! --  better dimensionality and transparency, lower register became more detailed and dynamic with impactful tune ---- more musical and free flowing!
 
Thanks iFi Audio! Keep up the good work!
 
Related Equipment: CAPS Zuma V3 with Windows Server 2012 R2 / Jriver MC20; iFi iUSB / iFi Micro iDSD / iFi Gemini
 
Aug 21, 2015 at 5:56 AM Post #2,064 of 4,252
   
Not asking you to divulge trade secrets. But basic functionality changes that affect the user, that you should be able to tell us?
 
To clarify, if v4.10 already disables sleep mode for my Android device (and I don't need DSD DoP functionality), then there's no reason to upgrade to v5.0B, correct?
 
I'm of the "if it ain't broke, don't fix it" camp. Cuz in my experience, "fixing" often results in "breaking".

 
Hi,
 
No functionality change except for the 'dis-able' sleep for 5,0B 'Choc Chip.'
 
There are far more details in the pdf.
 
As attached.
 
 
 
iFi audio Stay updated on iFi audio at their sponsor profile on Head-Fi.
 
https://twitter.com/ifiaudio https://www.instagram.com/ifiaudio/ https://ifi-audio.com/ https://www.youtube.com/@iFiaudiochannel comms@ifi-audio.com
Sep 4, 2015 at 6:26 AM Post #2,065 of 4,252
Hello! I have purchased the micro idsd at least! I am very excited and happy about this device and I can't wait for the 24 hours first charging to end!  I am a little bit confused about the charging otpions though and I could use some help with this.
 
I know that when I power the devide before connecting it to the computer then it runs on battery mode instead of getting the power from the usb bus. Now because I want to use this mostly as a desktop amp/dac,I would like to know if the amp and the dac section allways run from the battery (battery power has its bennefits) when using battery mode? What I want is to have it allways running from battery mode and charging from my usb all the time.
 
Is this going to harm the battery's life? Is there an optimum way to use the battery mode for a desktop use?
 
When in usb power mode does it complete bypassed the batter and feeding the amp/dac directly from the usb bus? Is this preffered for better batter life?
 
And at last I would like to know if there is a problem that my computer has usb 2.0 ports and the idsd cable is usb 3.0.
 
Thanks for your help in advance! Cheers
 
Sep 4, 2015 at 11:00 AM Post #2,066 of 4,252
And at last I would like to know if there is a problem that my computer has usb 2.0 ports and the idsd cable is usb 3.0.


No problem.

All your other questions have been answered over and over in this thread already. Do a little searching.
 
Sep 4, 2015 at 5:19 PM Post #2,067 of 4,252
Does anybody knows why jriver isn't upsampling to 768 khz since the idsd micro is capable of handling it? I tried to upsample with jriver but there is only options avalable for as high as 384 khz.
 
Do I need to update the firmware or to change a setting for the micro?
 
Any help would be aprecated!
 
Cheers
 
Sep 4, 2015 at 10:34 PM Post #2,068 of 4,252
  And at last I would like to know if there is a problem that my computer has usb 2.0 ports and the idsd cable is usb 3.0.
 
Thanks for your help in advance! Cheers

 
Myj fanless ASUS laptop also has 2.0 USB port, no problem using the stock cable at all!
 
Sep 5, 2015 at 2:50 AM Post #2,069 of 4,252
Bumping this because it has bothered me from yesterday and i cant find a solution,has anyone tried to upsample pcm with jriver up to 768 khz? Micro can surely take it but jriver doesnt present an option it is only goes up to 384 khz...
 
Sep 5, 2015 at 7:16 AM Post #2,070 of 4,252
Bumping this because it has bothered me from yesterday and i cant find a solution,has anyone tried to upsample pcm with jriver up to 768 khz? Micro can surely take it but jriver doesnt present an option it is only goes up to 384 khz...


You have answered your own question.

JRiver doesn't have that option.
 

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