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Tag Archive for PerfectDynamics

iBasso DX200 Purist ROM version 2.9.209 V2 released with stability improvements!

 

DX200 - Purist ROM

 

First of all, I’d like to inform you that there’s new changes in kernel version 2.9 that made some usual optimizations I put on didn’t work anymore. I made some adjustments to fix this issue and released it with testing from my environment.

However, some cases like Samsung 256GB micro SD card having massive collection like 20,000 songs won’t work smoothly. With help from understanding clients who tested my ROM and loan his unit for testing, I can finally make a stable release.

In this release, I’ll also add instructions to flash factory image version 2.1.94 and wiping data too. You can skip optional steps if you don’t have any issue.

 

-Based on firmware version 2.9.209
-Play Store added
-Apollo – Fidelity Edition from https://forum.xda-developers.com/android/apps-games/apollo-music-player-fidelity-edition-t3038629 included
-Revamped MangoPlayer UI with improved user experience
-build.prop tweaks for better video and storage performance and improve battery life
-Audio engine optimized for only audio playback (EQ/Gaplass features work)
-Bundled audio effects removed but keep main engine (Poweramp works now)

 

Download: iBasso DX200 Purist ROM

 

Installation Guide

1. Download Factory Tool provided by Paul http://www.ibasso.com/uploadfiles/download/FactoryTool_v1.39_DX200.zip
2. Turn off DX200
3. Connect DX200 with USB connection to computer while holding play button switch
4. Install Rockchip USB driver included in FactoryTool
5. Open FactoryTool.exe and flash ROM according to instructions provided in DX200 batch tool instruction.doc

Optional (If your DX200 still has performance issues)

1. Flash factory image version 2.1.94 with FactoryTool
2. Copy OTA ROM version 2.9.209 to DX200 storage and flash from Settings > About DX200 > System updates > Local update
3. Flash Fidelizer Purist ROM with FactoryTool again

For Mac / Linux users, please check this guide for flashing Fidelizer Purist ROM on Mac / Linux instructions.

 

There’s a lot of improvements for Advanced ROM and I also added Enhanced ROM into collection too. Please read Portable Products for more details including iBasso DX200 Fidelizer Mod project with 3 modification levels. Happy listening. 🙂

iBasso DX150 Purist ROM version 2.10.275 released!

 

Fidelizer - PerfectDynamics Sound Optimizations

 

Hi. After working constantly on Fiio ROM updates, there’s also DX150 release for ROM version 2.10.275 too. Now DX150 Purist ROM update is ready to install with some new adjustments and improvements based on recent Fiio updates.

Right now I’m working on proper DX200 ROM update. They seem to make some major changes in kernel and changes I usually apply didn’t work on DX200 2.9. First release has issues with some cases in Mango but that’ll be fixed soon.

 

-Based on firmware version 2.10.275
-Play Store added
-Apollo – Fidelity Edition from https://forum.xda-developers.com/android/apps-games/apollo-music-player-fidelity-edition-t3038629 included
-Revamped MangoPlayer UI with improved user experience
-build.prop tweaks for better video and storage performance and improve battery life
-Audio engine optimized for only audio playback (EQ/Gaplass features work)
-Bundled audio effects removed but keep main engine (Poweramp works now)

 

Download: iBasso DX150 Purist ROM

 

Installation Guide

1. Download Factory Tool provided by Paul http://www.ibasso.com/uploadfiles/download/FactoryTool_v1.39_DX200.zip
2. Turn off DX150
3. Connect DX150 with USB connection to computer while holding play button switch
4. Install Rockchip USB driver included in FactoryTool
5. Open FactoryTool.exe and flash ROM according to instructions provided in DX200 batch tool instruction.doc

Optional (If your DX150 still has performance issues)

1. Flash factory image version 2.9.250 with FactoryTool
2. Copy OTA ROM version 2.10.275 to DX150 storage and flash from Settings > About DX150 > System updates > Local update
3. Scan music and confirm it works fine before flashing Fidelizer Purist ROM with FactoryTool again

For Mac / Linux users, please check this guide for flashing Fidelizer Purist ROM on Mac / Linux instructions.

 

There’s a lot of improvements for Advanced ROM and I also added Enhanced ROM into collection too. Please read Portable Products for more details including Fidelizer Mod project with 3 modification levels. Happy listening. 🙂

Fiio X5iii Purist ROM version 1.2.1 released – Bright sound signature is now fixed with as Odexed ROM

 

Fidelizer Mod

 

Sorry for the long delay. I was visiting my parents since last month and I didn’t bring my ROM cooking materials with me. I only got back to my place few days ago and started cooking new Fiio ROMs as soon as possible.

As some people reported and mentioned in forums about Purist ROM sounding brighter than stock ROM, it was caused by de-odexing ROM which is a common practice for ROM cooking with ART runtime.

Odexed file is compiled as Dalvik byte code so app will run through Dalvik VM. De-odexing ROM will allow ART runtime to run app natively which also improve transparency and resolution in audio too.

However, opamps used in Fiio devices tend to sound brighter so de-odexing will make those characteristics more revealing too. I will publish odexed ROM so it won’t change sound signature on stock unit and use de-odexed ROM for Fidelizer Mod version.

 

-Based on firmware version 1.2.1
-Apollo – Fidelity Edition from https://forum.xda-developers.com/android/apps-games/apollo-music-player-fidelity-edition-t3038629 included
-build.prop tweaks for better video and storage performance and improve battery life
-bundled audio effects removed but keep main engine (Poweramp works now)

Download: Fiio X5iii Purist ROM

 

Installation Guide

1. Download X5iii Firmware Upgrade Tool
2. Turn off Fiio X5iii
3. Connect X5iii with USB connection to computer while holding previous track button
4. Install RK USB driver included in Firmware Upgrade Tool and replace update.img image with Fidelizer Purist ROM version
5. Open X5III Firmware Upgrade Tool.exe and flash ROM according to instructions provided in Instructions of How to Use the X5 3rd gen Firwmare Upgrade Tool.pdf

For Mac / Linux users, please check this guide for flashing Fidelizer Purist ROM on Mac / Linux instructions.

 

There’s a lot of improvements for Advanced ROM and I also added Enhanced ROM into collection too. Please read Portable Products for more details including Fiio X5iii Fidelizer Mod project with 3 modification levels. Happy listening. 🙂

iBasso DX200 Purist ROM version 2.9.209 released!

 

DX200 - Purist ROM

 

I thought I’d release DX200 2.9 ROM together with PerfectDynamics 2.0 but sadly I haven’t finished it yet especially after listening to classical concert in Golden Hall. There’s a lot for me to do to improve Purist ROM for 2.0 release.

However, I managed to fix a few issues during development so I’ll also include those fixes into this release too. I apologize for the issues that happened with some cases in Enhanced / Advanced ROM and now they’re all resolved. 🙂

 

-Based on firmware version 2.9.209
-Play Store added
-Apollo – Fidelity Edition from https://forum.xda-developers.com/android/apps-games/apollo-music-player-fidelity-edition-t3038629 included
-Revamped MangoPlayer UI with improved user experience
-build.prop tweaks for better video and storage performance and improve battery life
-Audio engine optimized for only audio playback (EQ/Gaplass features work)
-Bundled audio effects removed but keep main engine (Poweramp works now)

 

Download: iBasso DX200 Purist ROM

 

Installation Guide

1. Download Factory Tool provided by Paul http://www.ibasso.com/uploadfiles/download/FactoryTool_v1.39_DX200.zip
2. Turn off DX200
3. Connect DX200 with USB connection to computer while holding play button switch
4. Install Rockchip USB driver included in FactoryTool
5. Open FactoryTool.exe and flash ROM according to instructions provided in DX200 batch tool instruction.doc

For Mac / Linux users, please check this guide for flashing Fidelizer Purist ROM on Mac / Linux instructions.

 

There’s a lot of improvements for Advanced ROM and I also added Enhanced ROM into collection too. Please read Portable Products for more details including iBasso DX200 Fidelizer Mod project with 3 modification levels. Happy listening. 🙂

PerfectDynamics 2.0 Sound Optimizations will be introduced in Munich 2018 AV Show

 

Fidelizer - PerfectDynamics Sound Optimizations

 

PerfectDynamics technology is device-specific optimizations for Enhanced / Advanced ROM introduced on 1st October 2017. In upcoming Munich 2018 AV Show, I’ll introduce PerfectDynamics 2.0 with iBasso DX200 and Fiio X5iii device.

During development of PerfectDynamics’ initial version, iBasso DX200 and Fiio X5iii didn’t get the better sounding version of firmware and they later improved in over time. After I tried DX150 2.9 firmware port on DX200, I feel it’s ready to take this to the next level.

Having good sounding firmware to optimize is very important because sometimes you can’t be sure whether this optimization will really improve over all performance or just compesate the flaw with firmware itself. Even now I’m still not sure that I can finish it before the show lol.

 

PerfectDynamics 2.0 Goals:

-Fix random crash and reboot in some scenarios (90% – Fixed stability issues with boot image optimizations)
-Decay, depth and imaging will be important than clarity and separation (60% – Tuning I/O optimizations)
-Transient dynamics will have improved linearity which will also reduce digital glare effect (40% – Tuning PerfectDynamics specific optimizations)
-Full sound reproduction will take higher priority than making audio sounding pure (40% – Tuning audio optimizations)

 

If I can archive all that, PerfectDynamics 2.0 will make Linux based audio performance becoming closer to Fidelizer’s optimizations in Windows. I’ll start working today on iBasso DX200 first and I hope to master PerfectDynamics 2.0 before the show. 🙂