Welcome! Log In Create A New Profile

Advanced

Vanity 203HD Dolby TrueHD DTS-MA

Posted by yage 
Vanity 203HD Dolby TrueHD DTS-MA
May 07, 2021 03:50AM
Hopefully somebody still reads this forum... I bought a Vanity 203HD board a few years ago to 'future-proof' my Oppo UDP-203. Now I finally have a reason to use it. Installation went smoothly but I encountered a few hiccups:

- With a Benchmark DAC3 HGC, DoP loses sync frequently resulting in dropouts or static. Are there any settings I can change to fix this?

- DTS-MA and TrueHD 24/192 are not sent over the SPDIF output, I only get 24/48. Is this normal?


Thanks in advance!
Re: Vanity 203HD Dolby TrueHD DTS-MA
May 10, 2021 03:48PM
Hi yage,
Yeah, the forum is still active! :-)
- Try to find a setting in your DAC to relax the ESS loop filter bandwidth (DPLL). With some DACs based on the ESS parts the tiny frequency adjustments on Vanity's digital clock recovery system may cause momentary "unlocks" of the incoming signal due to too strict DPLL setting of the ESS part. The best to confirm the root cause of the glitches is to look at the Vanity board during operation and see if the LEDs indicating the frequency adjustment correspond to the sync issues.

- This might be OPPO's settings. To be honest I don't have much experience with those two formats if and how they would be decoded and played by the OPPO, but if everything is setup correctly and there is no restriction (from the HDMI subsystem for example) you should get 192/24.

Regards,
Pavel
Re: Vanity 203HD Dolby TrueHD DTS-MA
May 22, 2021 02:33PM
Thanks for the reply! I’ll have a look at the LEDs next time I get the chance. Just to confirm - they should flash together if there is clock adjustment, right? In the meantime the DSD to PCM conversion sounds really good already. Nice work!

I did a little more research into the TrueHD and DTS-MA and I think that HDCP prevents the full 24/192 soundtrack from being output. Not too big of a deal since most of the movie watching is done over streaming anyway these days and limited to 24/48.
Re: Vanity 203HD Dolby TrueHD DTS-MA
May 29, 2021 12:37AM
Hi yage,
Correct about the LEDs, when they flash simultaneously as the clocks are being adjusted.
HDCP on downstream HDMI can surely be the reason for the OPPO refusing to play 192/24. Try to play the DTS disc with no HDMI device connected to the OPPO and see. You can use the mobile app to control the player if there is no screen connected.
Regards,
Pavel
Sorry, only registered users may post in this forum.

Click here to login