Author Topic: MadVR setup for HDR UHD @PJ Big Screen  (Read 376 times)

Offline rock123

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MadVR setup for HDR UHD @PJ Big Screen
« on: January 15, 2020, 20:46 »
Hi guys,
Been doing some readup and like to try HTPC feed to Projector for with regards to MadVR setup @HDR UHD Picture.
It seem like it's matching the nits output\pixel mapping technology.
 
Wonder if anybody have tried this out ? If yes, how does the license work for the MadVR software?
Hardware cost for the need HTPC specifications will be another factor too.

Thanks so much.
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Offline Jag

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Re: MadVR setup for HDR UHD @PJ Big Screen
« Reply #1 on: January 15, 2020, 23:08 »
Madvr is free.

Pixel mapping is out of the box mapping with HDMI. You just simple need to set your GPU to set refresh rate to 23.976hz.

Madvr will convert HDR to fit your pj nits. Describing it here is beyond the scope since the proper documentation will describe it clearly.

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Offline eggz

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Re: MadVR setup for HDR UHD @PJ Big Screen
« Reply #2 on: January 20, 2020, 14:11 »
After using a Himedia Q10 pro for about a year I decided to build a MadVR HTPC on a smallish budget using some used components sourced from Carousell  ;D

My display setup is a JVC X5900 throwing on a 130inch 2.35:1 Screen Innovations Black Diamond

HTPC specs are:
Intel i3-9100 on ITX B360 chipset motherboard
Nvidia GTX 1070
16Gb DDR4 RAM

So far I've been really happy with the results, the HDR looks much better and I really like the flexibility of the HTPC. The 1070 is good enough for virtually all 4K UHD playback with all of MadVR's enhancements turned on to max. The only time I had to tune things down for performance was playing back 60Hz material at 4K like Gemini Man and Billy Lynn, and it was only 1 setting which made no significant impact on the image, at least nothing I could detect.

The good:
- MadVR works really well and you can tweak it to match the HDR capabilities of your PJ almost perfectly
- The flexibility allows one to adjust aspect ratios as needed, very useful since I'm using an anamorphic lens but don't have to rely on the stretching modes on the PJ which introduce more delays to the video chain and sometimes can cause lip sync issues
- Benefit from the latest and greatest Codec and filter improvements.
-  One can play with various media players on the HTPC while they all share the same MadVR setup. For example for most .mkvs one can use MPC-HC, but if you wanna play BDMV folders or .iso (via virtual drive), you can use JRiver MC
- For listening to multi-channel sound on headphones (when the family needs me to be quiet), I just attach a Creative X-Fi AMP USB dongle and any corded headphone, cheap and cheerful and works well too.

Some caveats to be aware of:

1) If you're using a Nvidia GPU, you'll be at the mercy of their drivers and various versions of the drivers might have issues. some of the problems and recommendations are tracked here: https://forum.doom9.org/showthread.php?s=d850392f75b9e5a3b81f1db637605726&t=176013
2) If you're using last gen (before N series) JVC projectors there is a magenta bug, certain refresh rates with 8 bit depth causes the entire screen to turn magenta. It's well documented in the thread above and there are various workarounds
3) Depending on your set up, HTPCs might introduce ground noise, but it's easy to fix

Excellent MadVR info found here for one to get started:

https://forum.doom9.org/showthread.php?t=146228
https://forum.kodi.tv/showthread.php?tid=259188
« Last Edit: January 20, 2020, 14:17 by eggz »

Offline desray

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Re: MadVR setup for HDR UHD @PJ Big Screen
« Reply #3 on: January 20, 2020, 20:13 »
After using a Himedia Q10 pro for about a year I decided to build a MadVR HTPC on a smallish budget using some used components sourced from Carousell  ;D

My display setup is a JVC X5900 throwing on a 130inch 2.35:1 Screen Innovations Black Diamond

HTPC specs are:
Intel i3-9100 on ITX B360 chipset motherboard
Nvidia GTX 1070
16Gb DDR4 RAM

So far I've been really happy with the results, the HDR looks much better and I really like the flexibility of the HTPC. The 1070 is good enough for virtually all 4K UHD playback with all of MadVR's enhancements turned on to max. The only time I had to tune things down for performance was playing back 60Hz material at 4K like Gemini Man and Billy Lynn, and it was only 1 setting which made no significant impact on the image, at least nothing I could detect.

The good:
- MadVR works really well and you can tweak it to match the HDR capabilities of your PJ almost perfectly
- The flexibility allows one to adjust aspect ratios as needed, very useful since I'm using an anamorphic lens but don't have to rely on the stretching modes on the PJ which introduce more delays to the video chain and sometimes can cause lip sync issues
- Benefit from the latest and greatest Codec and filter improvements.
-  One can play with various media players on the HTPC while they all share the same MadVR setup. For example for most .mkvs one can use MPC-HC, but if you wanna play BDMV folders or .iso (via virtual drive), you can use JRiver MC
- For listening to multi-channel sound on headphones (when the family needs me to be quiet), I just attach a Creative X-Fi AMP USB dongle and any corded headphone, cheap and cheerful and works well too.

Some caveats to be aware of:

1) If you're using a Nvidia GPU, you'll be at the mercy of their drivers and various versions of the drivers might have issues. some of the problems and recommendations are tracked here: https://forum.doom9.org/showthread.php?s=d850392f75b9e5a3b81f1db637605726&t=176013
2) If you're using last gen (before N series) JVC projectors there is a magenta bug, certain refresh rates with 8 bit depth causes the entire screen to turn magenta. It's well documented in the thread above and there are various workarounds
3) Depending on your set up, HTPCs might introduce ground noise, but it's easy to fix

Excellent MadVR info found here for one to get started:

https://forum.doom9.org/showthread.php?t=146228
https://forum.kodi.tv/showthread.php?tid=259188

Great info :) Thanks for sharing...