Anthem D2/D2v/AVM50/AVM50v/ARC1 tweaking guide - Page 1192

My intention of boxing up the OPPO was not to blame the OPPO but to allow the repairer to work with and experience the same component setup in trying to solve the problem.

I completely understood what you meant but I didn't want to risk couriering my Oppo as well with my past luck with such things (another story). The repairer has an Oppo BDP-83 to test with the Anthem. I will find out Monday if he has the same issues as me, if not then it must be my Oppo as remote as that may be considering I tested it with my TV today and there's no issues at all. Nothing changed in the Oppo setup using same HDMI input.

I watched Harry Potter - DHP2 last night on Bluray and found the center channel to be lacking. I have an Oppo 95 and the D2v. This is the first movie that I remember watching in which I had to boost the center channel by 2 dB to be able to clearly hear the dialog over the background sounds.

Odd - anybody else encounter this with the movie?

Thanks,
Mike

^^Mike - I noticed that too.

Stefan

Compare LPCM vs. Bitstream output from the player. This will help determine if the problem is in the content or is in the decoder in the Player vs the decoder in the Anthem.
--Bob

I spoke to the tech guy that's testing my D2v today and he hooked it up to an Oppo-93 and it all works using the same setup as me and he changed nothing in the Anthem's setup menu, left it exactly as I have it setup at home. He used HDMI for both the output and input on the D2v and was getting sound and picture without issues.

So I am at a complete loss as to why it wont all of a sudden not work with my Oppo-95 which works fine on my Sony Tv using HDMI from Oppo. I will be getting the Anthem back this Thursday and will hook it back up as per normal and see what happens.

Just can't figure this one out.

Your OPPO sees a different protocol when connected to
the display versus the AVR. When connected to the display
it sees the display. When Connected to the AVR - it sees
a Repeated Signal versus the source. In THEORY - it should
be fine.

I still think your problem is the OPPO and not the Anthem.
But my opinion is only worth 2 cents American

I have to repeat my suggestion from before. Send him your OPPO and your cables.
Eliminate any doubt. If its the OPPO, their CS people may be able to help

I think I'm having the same problem with Simon now. Things degraded over the weekend. Most of the time now I get no audio from my D2v with multiple HDMI sources right when I boot everything up. I play around switching between sources for awhile and then it comes one. I upgraded the firmware to 2.12x and then back down to 2.10. Made no difference. I also configured the Opt1 and AES and it does the same thing. No audio. I switch around the sources and go into the menu and something seems to click and then the audio starts. I haven't figured out a pattern yet. Once the sound comes on the audio is there in all it's glory until I power down the unit. I switched a few HDMI cables out and the noise on the picture went down but the configuration is basically the same configuration I was running months ago with no issues.

There is a much newer Firmware on the tech page. If you call and they think it will help.

It is 2.13 something... I cannot remember off hand. I am running 2.11 (c) with the best results.

If you were seeing cable dependant noise on digital HDMI video you very likely have some cabling or connector issues. Digital video should be perfect with regards to noise and since it is digital data what affects the video is likely affecting the audio too.

Did you ever get your HD music problem resolved? I ask because I have the exact same problem. I am feeding my Anthem AVM 50V, 192 KHz music from an Oppo BDP 93 player through HDMI 1. My 50V shows that it is receiving 192 KHz input but it is ouputting 96 KHz.

I have tried other inputs and some other settings but no luck. Any help will be appreciated.

That's pretty interesting. At the time of my testing I didn't have a display connected so I couldn't go into the Oppo and change anything like Bitstream/pcm to see if that made any difference. I did go into the D2v's setup and switched sources and changed the HDMI audio inputs according to what I had connected at the time where I tried inputs 1-2 and then 8. I spent an hour trying but it simply wouldn't talk to the Oppo.

I had the opportunity to get the unit delivered to a relatives today then get it on Thursday but after talking to the place of purchase they would prefer the unit be tested more to completly cover everything. The service person couldn't use HDMI 1 video (output) on the D2v as his tv wouldn't accept 1920x108024p (setup for Bluray) and he didn't want to mess around with the setup so he used HDMI 2 instead (setup for dvd 1920x1080i60). He encountered "0" issues.

The service guy unfortunalty isn't in today and no one else can test it out, so I have to wait until tomorrow before he can replicate exactly how I have it at home and he said he will have a projector on hand this time which is good.

I did not receive an answer from Bob on my question and I don't actually consider it a problem. I really suspect that DSP in Anthem 50V cannot (or does not like or want) to handle 192 KHz so it down-converts 192 KHz to 96 KHz if correction is on. When you switch ARC Room EQ off, you will get full 192 KHz on output as well so it indirectly proves my theory. If 50v and d2v have the same DSP chips then d2v should behave the same otherwise it is just a marketing ploy to down-sample 192 KHz in 50v for ARC/processing which would be a bit unfair.

Hello folks,

I have an Anthem D2. I got a pair of Revel Studio speakers the other day, and they have mad bass output for my room! I figured that I would run them full range, and not use a sub.

I ran through ARC (version 3.0.1 I believe), and I set the target curve to "flat."

All seems to be well, except when LFE kicks in it is super loud! It sounds like it's up 10db or so.

Anyone know what might be going on and how to fix it?

Thanks!!!

Todd
(Goatwuss)

That's because Bob didn't know the answer. If the AVM 50v has a quirk like this it's news to me, but I don't use an AVM 50v so I can't check.
--Bob

True, but you was the only one who honestly answered technical questions about Anthem processors and I thank you for that. Anthem support evade direct answers altogether. DSP chips in 50v and d2v look similar according to specifications (dual core 800 MIPS) but d2v upconverts everything up to 192 KHz (either before ARC/DSP or after) so probably it is always showing 192 KHz in audio output where as 50v is honestly stating that initial 192 KHz was down-converted to 96 KHz for ARC processing. According to this review ARC is working with frequencies up to 96 KHz so my guess is that d2v is down-converting the 192 KHz before ARC too but we don't see (and hear) it:
http://www.avforums.com/review/Anthe...er-Review.html

Hello,

Can a D2v without the new HDMI daughter board already take advantage of the new firmware available in beta (D2v v2.13b) in order to use the new auto frame rate switching?

Thanks

Yes, at your own risk of course
John

Ok. Good enough. Did you try that yourself? What about ARC? Do I need to do a rerun afterwards?

The version of ARC did not change so you don't have to rerun it. You may need to re-upload your old arc settings after updating the firmware.

Just FYI with my D2V w/o 3d board, beta version 2.12X the HDMI inputs did not work, went back to 2.11 and all fine. Dont know about 2.13, but as John says, "at your own risk" Anyone else try 2.13b w/o 3d board and have HDMI input problems?

Hopefully trying it today. No need to rerun ARC.
John

That would defy the law of physics.

Scotty said you can't defy the laws of physics so therefore he must know
John

Maybe you missed this on the forum you talked about above.

************************************************************ ************************************************************ *******

" The D2v, which replaced the D2 in Jan 2009 and has four DSP cores instead of two, accepts 192k (8 channels). It does not necessarily down-convert for ARC, only doing so when certain other processes are on, namely Dolby Volume* and/or THX. The mandate was to keep sample rate native where possible, and to use the highest possible when down-res is unavoidable.

*which is very intensive, requiring conversion all the way to 48k."

Best Regards,
Nick@Anthem


************************************************************ ************************************************************ ******

Q: How does the MRX 300/500/700 ARC implementation compare to D2v/AVM50v?

A: ARC consists of software that runs on a user-supplied computer which calculates a room correction solution and a DSP chip in the receiver which implements it. The ARC software is the same for all Anthem A/V receivers and processors. The MRX DSP is about half as powerful as in the D2v/AVM50v.

Nick @ Anthem elaborates:

MRX 300/500/700 DSP has around the same amount of number crunching ability as anything in the price range, which is around half as much as AVM/D prepros using ARC (and PBK for that matter), which have as much as pro systems in the five figures. This means that MRX 300/500/700 corrected response usually does not meet target response as closely as AVM/D, thought it's also usually not too far off.
The other difference is that correction range not only defaults to 5 kHz but cannot be made to go higher. Correction above 5 kHz is not normally recommended regardless.
Another difference not dependent on ARC is that MRX DSP uses crossover frequencies of 60, 80, 100, 120, and 150 whereas AVM/D allows 25-160 in 5 Hz steps. It relates because ARC selects the crossover frequencies based on in-room measured response.
The practical difference depends on the amount of correction the room speaker/combo needs, and this varies greatly. MRX-ARC still improves things regardless, using the same principles as the other ARC.

Stew

I just checked Anthem data sheet for 50v and d2v and both of them have two dual-core DSP processors with total up to 800MIPS. So there is no difference in DSP here between those processors but 50v is clearly downsamples to 96KHz from 192KHz when ARC is on and no Dolby volume and THX. So technically speaking either d2v does the same downconversion for ARC but we don't see it because it upconverts it back to 192 KHz or 50v was deliberately doing it just to be different from d2v (but not because it should do that).

Todd,
By setting the sub to flat in ARC you diable ARC's filters that are meant to protect your sub -- or speakers set to full range.
Many subs have their own protection built in, which makes setting the sub to flat safe. ARC will send the unfiltered bass/lfe to the sub or speaker, and the filters in the sub or speaker will decide what is safe.
Not all subs have this filtering built in, which is why it is recommended to check first before using the flat setting.
I would guess that even fewer speakers have this type of protection built in.

If I were you I would disable the flat setting in ARC to your fronts. Immediatly. You can check with Revel to see if there is built in protection for LFE.

You have the option in ARC of:
-setting your fronts to full range, but leaving the sub setting at auto, not flat.
-using your sub for lfe, and setting it to flat, if it is capable.
-setting up separate music and movie speaker configurations in ARC, using your sub for movies, but setting your fronts to full for music.

My sugestion would be to setup the separate movie and music configurations in ARC, using your sub for movies, but leaving your speakers at full range range for the music configuration.

Tom

He has no sub and using the LFE at high volume with these audio speakers with 2 8" woofers may not be safe.

Specs for Revel Studio
Frequency responses: in-room response and first-reflection, 31Hz-12kHz, ±1dB; listening window, 31Hz-20kHz, ±1.5dB. Low-frequency extension: -10dB at 22Hz, -6dB at 26Hz, -3dB at 33Hz.


Todd

I suggest posting the ARC results including targets.

Stew

Stew,
It's unclear to me whether or not he has a sub (and decided to take it out of the mix) or has no sub. You may be correct in your assumption.

Either way Todd should remove the 'flat' setting ASAP.
There is a chance he may damage his speakers if they do not have built in protection necessary to run ARC at flat.
Better safe than sorry.

Tom