"Official" Audyssey thread (FAQ in post #1) - Page 741

Well, Mac, I only stumbled into HT about 6 yrs ago, so I'm making up for lost time. I'm glad, though, that I didn't discover it earlier, for boy is it time consuming (but fun!). Good thing I'm near retirement.

Much sooner then me. I got into this mess only a year a go. My logic was to pony up the $$$ to get decent audio now, before my hearing goes south. I figured I got my moneys worth out of 20 year old audio gear. It is however nice that displays have GROWN, and in my questimate BlueRay seems approx. 20% sharper/detailed then DVD, helpful for failing eyes at least. HAPPY early BIRTHDAY!!! Perhaps when you HIT 70, the dial with be at reference level?

I actually am listening to BD's at ref level (0 on my Onk 1007) now that I leave the Audyssey level settings just as it sets them. This way DynEQ really does its job just as advertised. The speakers are all at ~68 dB (on my RS SPL meter) this way (rather than 75), but things come out well by leaving them there.

You are very welcome.

There would need to be a LOT of pictures to cover all the words in this thread.

Yes your right maybe a videoguide on youtube or something. a long one

Hi all,
are there little differences regarding this feature on 2eq and multieq?

does the dynamic volume on multieq adjusts the volume only during the exchange from film to spot or during the entire transmission/film ?

not sure m8 sry but i did find a little bit of info of the subject if you'r interested



also check out:

multieq, Technology Overview, the faq & chris talking on youtube.

maybe you already have been around that way and if so im sorry but couldn't really find any more specific information.
as far as i could find out 2eq can't be used to calibrate the sub but that may be wrong.

Sorry if this has already been answered, but here goes.

I have a fantastic Denon AVR-5803A receiver. Is there any way for Audessy to help me?

It doesn't appear that the 5803A has Audyssey. If that is the case, you would probably need to go with this:

http://www.audyssey.com/hometheater/soundeq.html

It may need to be professionally installed, but I don't know that for a fact.

I have a couple of questions I've been meaning to ask. I'm happy with the way audyssey equed my system.

1. why is it that when I raise my subs crossover point, its output gets louder? its not boomy but it kind of overpowers my other speakers. I raised it to 60 an I like how it sounds there, but I'd like to raise it to 80 to give my receiver more headroom. no biggie if I can't but I'd still like to know why this happens.

2. compared to other sound modes, the thx modes have significantly lower bass. I don't know if this has something to do with audyssey though.

thanks.

1. For the record, subs do not have crossover points. The other speakers cross over TO the sub. Receivers/processors have low pass filters on the low frequency effects/enhancement channel. What exactly are you raising?

2. Might be the nature of the sources, or perhaps some parameter is not set correctly. In any case, there is nothing in what Audyssey is doing that would account for that.

Jeff

What AVR do you have? What are your calibration settings?

I'm raising the crossover point in the receiver to give it more head room and unload the lower frequencies to the sub.

I read in my receivers manual that when you engage a thx mode, something happens to audyssey but I don't remember what. I don't have it with me at this time. I don't know if this has anything to do with the bass though.

I have the onkyo tx nr1007. unfortunately I'm not home right now so I can't check, but ill try to post them as soon as I get home to see if something is wrong.

Yes, that's good! Raising crossovers after setting up Audyssey accomplishes what you said.


There is a change wrt the target curve when using a THX mode with RE-EQ, but that change is at the upper end. Review your receiver's menu option for THX mode and make sure that everything is set correctly. "Subwoofer: Yes" would be something I would look at first.

I also have the 1007, and my understanding is that when you use a THX mode Audyssey switches to its 'flat' eq curve, which does NOT attenuate the high freq region (as the std Audyssey eq curve does).

As stated above the LFE 'cross over' is actually a low pass filter, attenuating any output in the LFE channel that is above this value. Audyssey always suggests setting this to the highest possible value (120 Hz for this AVR); i.e., why cut out any of the signal in the LFE channel.

You do create more headroom for the main channels (L, C, R, and surrounds) by increasing their x-overs, i.e., sending all the signal from these channels below that value to the sub. But you probably don't want to increase their x-overs much over 80 Hz (unless Audyssey sets them above this), for audio much above this value tends to become increasingly localized at the sub's location.

Also, make sure that you do not have THX Boundry Gain Compensation Turned on.

http://www.thx.com/technologies/bgc.html

Hi Heja,

It appears that theoretically, i.e. on paper, DTS has already created a solution to permit speaker remapping from the recording environment to the listening environment. If I understand correctly, the DTS remapping feature requires that the particular recording speaker layout be specified by providing metadata in the source recording. Only by knowing where the speakers were positioned during the recording process, can the DTS algorithms correctly electronically adjust the apparent positions in the listening environment. This requires a feature built into the receiver decoder that permits the user to select which of a number of predetermined speaker configuration comes closest to his/her actual layout. However, so far I have not run across any receivers or preamplifiers that have this functionality built into their decoders.

I am not familiar with the Yamaha process that you are discussing. I didn't see a remapping feature on their flagship receiver. Which device were you listening to?

I believe the purpose of speaker remapping is to electronically reposition the apparent direction of speaker locations so that the sound presentation in the listening room more accurately matches the recording configuration. This is absolutely not the purpose of Audyssey DSX. Perhaps if a receiver/prepro were released that incorporated the DTS speaker remapping feature Audyssey DSX would have to be modified to account for this new processing, but otherwise I see no similarities.

Thanks.

Larry

Yep, lots of settings that can hose a system's performance!

Pepar
Whats the go with THX loudness plus? how does this work and how is it an advantage for any source if indeed it is an advantage at all?

This sounds like what THX does with the "Advanced Speaker Array" used with THX Ultra 2/Select 2 Cinema.

http://www.thx.com/home/setup/listening/index.html?n=t

Don't have it, so I don't know. But is *sounds* like it would be something like Audyssey's Dynamic EQ which is meant to correct for human hearing at levels below reference.

Yes, THX Loudness Plus is similar in concept but different in execution from Dynamic EQ. I have it on my Onkyo and used it initially before I figured out how to optimize Dynamic EQ. To my ears it is not as effective as Dynamic EQ but it works well with all sources (movies, CDs, tv,etc.) without some of the workarounds/tweeks that Dynamic EQ requires.

The explanation is not great:

http://www.thx.com/technologies/loudness_plus.html

Thanks Blue and Pepar appreciated.

Hi,

Perhaps they are using similar electronic tricks to move the apparent position of speakers. However, the Advanced Speaker Array only deals with the surround field distributed among the four surround speakers. In contrast, the advertised purpose of DTS Speaker Remapping is to move the apparent position of potentially all speakers. In addition, I believe that the THX Ultra2 Cinema mode results in a diffuse surround soundfield. Hopefully in the case of DTS Speaker Remapping that would not result in an appreciable loss in directionality, otherwise that would defeat its purpose of electronically repositioning the speakers.

Regardless, of how this repositioning is accomplished, I fail to follow the original poster's point somehow suggesting that DSX is related to Speaker Remapping.

Larry

A question for Chris, or anyone else who knows. I had run Audyssey many times months ago - and after experimenting there was one combination in terms of distance settings and trims that sounded the best. What I mean by this, is that often times Audyssey would set trims and distances different each time, but only different by half a unit at best. I would listen to the results until I realized which 'combination' sounded best to my ears. Note, I re-ran the test with microphone at exact locations each time. When I realized what sounded best after so many tries, I re-ran the process until I "landed" on the distance/trim combination which I liked the best. Actually, the only distance-setting result which varied was for the subwoofer, the 5 speakers were the same each time.

Still, after running the test so many times, I knew which distance setting for the subwoofer sounded the best. Let's just say my ears are as golden as they are critical. Either way it has paid off and the soundfield in my room is truly exquisite.

My question is, in the exact same environment, if I re-ran the Audyssey process using the exact same microphone locations (but only the first location dictates distance and trim) and at the end of the process all trims and distances come up the same as before, except the subwoofer distance varies by a foot. If I were to then change the sub-distance back to what it was before, will it be the same soundfield as before, or has Audyssey somehow changed things around this time to adapt to a new subwoofer distance?

I know it is "okay" to change trim as has been repeated many times, but it is okay to change a distance and hypothetically preserve the same soundfield from before.

Moral is, when I inevitable have to re-run it in future, I want the same result as before, without having to spin the wheel and hope the same subwoofer distance pops up each time.

Thanks.

Sorry if this has been answered already. I have a 5.1 setup in my living room and a 5.1 setup in my bed room, but only want to use one at a time (I'm not sure how I'm going to execute the speaker wire switching yet). They are powered by a Denon AVR-4310ci. Is it possible to store multiple (in my case two) Audyssey configurations or would I have to hook up a computer to the receiver every time I wanted to load a different calibration?

Thanks to anyone who can help!
Tog

Hi Tog,

No, it is not possible to store different calibrations in the Denon AVR-4310. However, it is Audyssey Pro capable so if you were to purchase a Pro kit it would be possible to store multiple Audyssey Pro calibrations on your computer. However, this would be a rather inconvenient approach.

Larry

I just said it "sounds like" not that it was.

I fully understand the differences.