Author Topic: Your experiences with Dolby Surround Upmixer (DSU)...  (Read 9460 times)

Offline desray

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Re: Your experiences with Dolby Surround Upmixer (DSU)...
« Reply #15 on: June 10, 2017, 07:02 »


I was using the DTS X and Atmos demo disc to do "call out" for each speaker.

The DTS X was less "distinct" for the "overhead" channels so I switched it to Atmos processing on DTS X and it felt more localized.

So in the end I'm using Atmos/Dolby Surround upmix on any DTS soundtrack.

Interesting discovery. I'll try it out and share my experience later today.

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Offline Doggie Howser

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Re: Your experiences with Dolby Surround Upmixer (DSU)...
« Reply #16 on: June 10, 2017, 08:27 »
It's weird but I couldn't switch on Atmos processing on DTS X the other day.
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Offline desray

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Re: Your experiences with Dolby Surround Upmixer (DSU)...
« Reply #17 on: June 10, 2017, 08:38 »
It's weird but I couldn't switch on Atmos processing on DTS X the other day.

Exactly...I don't recall I am able to do it but since you mentioned it so I thought I'll revisit it again. :P

Online ronildoq

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Re: Your experiences with Dolby Surround Upmixer (DSU)...
« Reply #18 on: June 10, 2017, 10:41 »
It's weird but I couldn't switch on Atmos processing on DTS X the other day.

were you able to switch to atmos from DTSX master? Strange, i have never come across that availability on the Denon AVR. From Dolby To DTS Neural X yes, Atmos to DTS Neural or TrueHD yes. But never Atmos to DTS:X master or vice versa

Offline Doggie Howser

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Re: Your experiences with Dolby Surround Upmixer (DSU)...
« Reply #19 on: June 10, 2017, 11:53 »
Let me bring back the DTS 2016 Demo disc again. It might have gone to DTS HD when I paused it which allowed me to enable Dolby Upmix
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Online ronildoq

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Re: Your experiences with Dolby Surround Upmixer (DSU)...
« Reply #20 on: June 11, 2017, 09:44 »
yea, i think its different with Atmos and DTSX Master, which are object based audio, unlike the younger brother of Dolby TrueHD /Digital, DTS HD, DTS, which are all channel based. The latter allows you to switch between different listening modes because of the AVR's ability to decode channel based audio. I used to like DTS in the past, somehow it sounded better than dolby, mainly because of its higher bitrate.

I think the key is in the mixing of the original soundtrack when it comes to DTS X vs Atmos. Although both are object based, the tools & plug-ins used for encoding those data makes a difference. DTS were 2-3 years behind dolby when object based audio was introduced, but i believe they will catch up soon.

The only time i switch in the listening mode is when i have a Dolby Digital signal, i will pick DTS Neural X. But for DTS & DTS HD sources, i will stick to Neural X

Offline desray

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Re: Your experiences with Dolby Surround Upmixer (DSU)...
« Reply #21 on: June 11, 2017, 10:16 »
Let me bring back the DTS 2016 Demo disc again. It might have gone to DTS HD when I paused it which allowed me to enable Dolby Upmix

Any update?

Offline Doggie Howser

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Re: Your experiences with Dolby Surround Upmixer (DSU)...
« Reply #22 on: June 11, 2017, 14:36 »
Oops. I brought the discs back but was watching Railroad Tigers. Couldn't get past 20 minutes. Then watched Sword Master.

Will try it later tonight.
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Offline Doggie Howser

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Your experiences with Dolby Surround Upmixer (DSU)...
« Reply #23 on: June 19, 2017, 10:26 »
Took longer than expected - and oddly enough I didn't even need to bring the discs home. I actually have downloaded the clips for the speaker call outs and other demos so just played them through

I have noticed tho that the immersion is fantastic when I'm seated at the sweet center spot.  This is with DTS X and Dolby Atmos. Couldn't upmix DTS X to Atmos. I think I paused the playback last time when switching so the bitstream might have switched from DTS X to DTS HD for a moment.

Move off to the side of the 3 seater and the overhead sensations feel a bit less distinct. More vague. This is with Dolby Atmos enabled speakers. May be better with actual in ceiling speakers? I don't know. I did remember thinking it wasn't so obvious in the Atmos theater when I last heard it - Iron Man 3 in GV at Vivo.
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Offline desray

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Re: Your experiences with Dolby Surround Upmixer (DSU)...
« Reply #24 on: June 19, 2017, 14:22 »
Took longer than expected - and oddly enough I didn't even need to bring the discs home. I actually have downloaded the clips for the speaker call outs and other demos so just played them through

I have noticed tho that the immersion is fantastic when I'm seated at the sweet center spot.  This is with DTS X and Dolby Atmos. Couldn't upmix DTS X to Atmos. I think I paused the playback last time when switching so the bitstream might have switched from DTS X to DTS HD for a moment.

Move off to the side of the 3 seater and the overhead sensations feel a bit less distinct. More vague. This is with Dolby Atmos enabled speakers. May be better with actual in ceiling speakers? I don't know. I did remember thinking it wasn't so obvious in the Atmos theater when I last heard it - Iron Man 3 in GV at Vivo.

Thanks for the confirmation and update...My experience is a bit different than yours. I have no issue with the "sweet spots" 2 seats maybe due to the room width is less than yours? For reflection to work effectively, the "sweet spot" requires Audyssey calibration to work right the first time...you may wish to reconsider re-doing your Audyssey calibration? I have very good consistent results regardless where I sit. If done right, it CANNOT be just the "MLP or Prime seat" that sounds great.

Offline Doggie Howser

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Re: Your experiences with Dolby Surround Upmixer (DSU)...
« Reply #25 on: July 03, 2017, 19:16 »
I guess might depend on how far apart the speakers are.

I remember first time I watched ST Into Darkness TrueHD and the way the spear was thrown left and right past Bones and Kirk - it was so much more noticeable when I was in the MLP in more than a few different setups

Sitting on the sides definitely felt less noticeable.
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Offline desray

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Re: Your experiences with Dolby Surround Upmixer (DSU)...
« Reply #26 on: July 03, 2017, 20:33 »
I guess might depend on how far apart the speakers are.

I remember first time I watched ST Into Darkness TrueHD and the way the spear was thrown left and right past Bones and Kirk - it was so much more noticeable when I was in the MLP in more than a few different setups

Sitting on the sides definitely felt less noticeable.

I will try to share my experiences in setting up my Dolby Atmos enabled speakers soon and you hit the jackpot that distance is definitely one of the attributing factors.

Offline desray

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Re: Your experiences with Dolby Surround Upmixer (DSU)...
« Reply #27 on: January 05, 2019, 13:13 »
Reviving this thread to see if anyone has any good experience using the DSU (Dolby Surround Upmixer). We used to lament that the Dolby Pro Logic IIz was the "best" for movie and music listening if "done right"...Dolby had made a bold move to replace the Pro Logic IIz DSP modes (CInema & Music) with just one single DSP - i.e. DSU.

Since most of our discussions tends to revolve around Dolby Atmos and perhaps a little bit DTS X (due to limited titles) and let's not forget that many bros here owned numerous bluray titles before the "Object-based" sound mix era kicks in in 2014 with the intro of Dolby Atmos.

Let's talk about your experience with DSU on some of the older bluray collection that does not have Atmos sound mix in it. Do you prefer to switch on DSU for that "matrixed" height channel information to be activated or stick with the native sound format - meaning, if the bluray title feature Dolby TrueHD, do you stick with Dolby TrueHD track or you allow your AVR to throw in the DSP mode (DSU) just to get a better listening experience?

I will like to hear your views...if there are certain titles which really make the DSU mode "shine"...pls do share as well.

Offline wechnivag

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Re: Your experiences with Dolby Surround Upmixer (DSU)...
« Reply #28 on: January 05, 2019, 13:36 »
Slightly different, but I read that you can bypass the DSU limitations to Dts-hd tracks by setting your source to decode and output LPCM instead of dts-hd, and the avr will upmix LPCM to atmos. Is it true?

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Offline desray

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Your experiences with Dolby Surround Upmixer (DSU)...
« Reply #29 on: January 05, 2019, 13:48 »
Slightly different, but I read that you can bypass the DSU limitations to Dts-hd tracks by setting your source to decode and output LPCM instead of dts-hd, and the avr will upmix LPCM to atmos. Is it true?

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Never heard before and why would anyone want to do that? For me, a true object based sound mix should always be the preferred choice over everything else. Any form of down-mixing to “trick” the AVR deciding to output Dolby Atmos makes absolutely no sense whatsoever. But if you are talking about the update that rid DSU as a viable alternate DSP mode for non Dolby tracks. Then that’s different but that’s besides the point.

Just out of curiosity, where did u get this info of DTS HD MSTR to LPCM and allow AVR to upmix to Atmos? If it’s viable, what’s the experience like? Any firsthand empirical review perhaps?



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« Last Edit: January 05, 2019, 13:51 by desray »