"Official" Audyssey thread (FAQ in post #1) - Page 42

Mebbe but you might get a better result with your current setup. 3 measurements is pretty minimal. How close were they? What was your mic setup? How good/bad are your room acoustics? (Audyssey cannot make a silk purse out of a sow's ear.)

Measurements were all done on the sofa in front of TV 14ft away. The living room is open to the kitchen. No room treatment done. I am no audiophile, but I would say the room has good acoustics. Mic was setup on tripod.

Here is another one that might be found local for many people, and for even a lower price as well.


http://www.radioshack.com/product/in...entPage=search

http://thx.com/technologies/reeq.html


No.
It just takes another Audyssey target curve: The (Audyssey) FLAT instead of the Audyssey target curve.


THX Re-EQ does a high frequency roll off as does the Audyssey target curve. Together with that Audyssey target curve you would have double the high frequency roll of, which is unwanted, so the Audyssey FLAT target curve is chosen automatically.

Thanks for confirming that's how it works. The question(s) everyone's asking in their own way then is: how desirable is that high-freq roll-off? As it's present in both Re-EQ and Audyssey curves I'd think it's very much intended for near field acoustics in the home? Why do some want to get rid of it with the FLAT curve? Any advantages or disadvantages to either scenario?

I suggest you give it another shot with more measurements. Try 2-3 in the vicinity of your listening position and 3-4 in the surrounding portions of the sofa. If the sofa is leather (or other reflective material), cover it with a towel or blanket to prevent the early reflections. As for having good acoustics without treatment, that is relative and, imho, unlikely.

Did shamus daisy chain or use 2 different EQ channels. He didn't specify, although he quoted a guy who daisy chained and he didn't correct him so I am assuming he did. Theoretically, Audyssey can do each sub separately. Why did he daisy chain vs EQing both channels independently?

What is Audyssey's "Official" stance on 2 subs? Daisy chain and EQ as a single channel from the Equalizer or EQ independently?

What does the new Audyssey enabled product made especially for subs do for dual subs? Does it expect you to daisy chain?

This guy David Rich from Sensible Sound said:

Please tell me he made that up.
My installation has the sub as channel #6. Do I need a new installation?

My equalizer is a over year old. Did Audyssey put in more advance DSP chips or DACs?

If so, should I upgrade?

If not, does Audyssey have any plans to upgrade? (At some point they must, they can't keep old DSP chips. Can at least the equalizer’s DACs be swapped out for newer ones and will Audyssey allow customers to send it in to do so?

On our Denon AVRs we only have the capability of EQing one sub. I have a Klipsch RSW 12 in front and a RSW 15 behind, daisy chained from the AVR. I did as Shamus suggested and I have no localization of either sub.

Thanks for this reply. I do have leather sofa and will put a blanket. I have run Audissey several times and wondered why I can get vastly different results. I never thought of the couch material.
Is there any difference in the order you take points? We have a L-shaped leather sectional and I generally start in the middle because that is the main listening point and then go in one direction outward and then pick up the remaining spots. I do usually take eight positions.

The only thing that is affected by the order are the measurements exclusive to the first mic position. That should be, as you have done it, at the prime listening position.

Nope. That's the default but you should be able to change any of the designations.

When, and how much?

How do I change a designation? I would think it's too late once the software ran?

Won't all that hardware under the place you thread the microphone onto (that flat black piece) interfere with the microphone?

Would this work well, or would it be too large or too reflective?

http://www.radioshack.com/product/in...entPage=search

what is it a target curve ?
What does it means that MultiEQ is on but the target curve is flat?

I know is not related to Audyssey, but please let me ask this.
What drives to choose THX Surr EX or Dolby Digital Extended provided that all these can be chosen with the same kind of signal i.e. Dolby EX 5.1?

Straight stands, camera or mic, don't seem to have enough placement range. They go up and down but not left & right and back & forth. To get the capsule properly located and oriented requires more adjustability.

Yup. You gotta run it all over again.

Thanks for the response...

so how would this differ if Audyssey is not engaged?

I'm very green in this area and I'm trying to figure out how these curves are used in the receivers.

I've been using the EQ Pro for a year. WOW! The best upgrade in my system ever. I can hardly wait to see what it does with the new high resolution formats.

The 2 most amazing and biggest real life differences are localization and clarity.

localization: I always thought it was Hollywood's intention to have things swish by and not be very specific about it. That is very cool in of and of its self. But Post EQ, when things go by, even as small as a bullet there is no mistaking exactly how large the object going by is. I can't believe this technology exists. I've been to many, many professional rooms and never did I hear such localization. This tells me that even with treatment, there has be some EQing.

Clarity: When I a/b the EQ vs. off the clarity is obvious. It sounds like someone is shaking the speakers a bit when it's off. One time I left the EQ off and fell asleep. When I woke up I could swear someone was trying to shake the speaker. I was about to scream at my kid for shaking the speaker. I once caught him trying, but they way 100 lbs each.

What it means is that MultiEQ does 2 separate things:

1- it always corrects for room abnormalities and speaker response anomalies,

2- it also offers to apply some other alterations to the signal. The "flat curve", hardly a curve, simply gives you the first set of corrections mentioned above which should produce a flat frequency response at the listening position. Their recommended option is the "Audyssey curve" which introduces a slight roll off at higher frequencies. I suspect that gives you a sound a little closer to what you would hear in a cinema since air actually absorbs sound slightly at high frequencies and the amount of absorption is determined by room volume. Cinemas have a much bigger volume than rooms in a home therefore there is a bit more absorption at high frequencies in a cinema than what you hear at home. A third option, the 'Front curve' available on Denon receivers, matches the tonal response of the surround speakers to that of the front speakers, enabling a bit better blend of sound if you're running different speakers in the surround positions to your front speakers.

With MultiEQ on, you always get the corrections mentioned in 1 above but you can choose which of the optionsor target curvesin 2 above is to be applied in conjunction with those in 1 above.

In other words, you choose between having the corrections in 1 above, or having no correction at all when you choose between having MultiEQ on of off. When you choose those corrections by turning MultiEQ on, you also have to choose one of the target curves in 2 above. If you simply want the room and speaker corrections only, you choose the 'flat curve'. Alternatively you can choose the Audyssey curve for a slight treble rolloff or the option that matches surround response to front speaker response if that is available on your receiver.

Are you talking about the Audyssey Sound Equalizer?

Anyone?

you coud try the late night listening mode it usually keeps the volume one level

I own a Onkyo 605 and ran the AudysseyEQ two times with similar results. It set my fronts, center and surrounds to Cross-Over at:
Left /Right 150Hz
Center 150Hz
Surround 150Hz
Subwoofer 120Hz (manually)
The problem is the specs on my speakers are as follows = 105Hz min.-20KHz Max (-6dB)

So should I manually set the cross-over to 120hz on my speakers or just leave it alone knowing that Audyssey won't work correctly if I lower the cross-over freq. I guess I'm wondering if any advantages or disadvantages can be had if I tweak the cross-over settings.

I would leave it where it is. The FR is usually specified at the -3dB point but yours are stated at the -6dB point, so the 150Hz rating is probably appropriate.

Thanks for fast reply. I know it's easy for questions to get lost in some of these threads..

I have posted in post #1178 of this thread how the head of the tripod is likely interfering with the Audyssey measurement using the stubby Onkyo mike. The problem went away by raising the mike from the tripod head. Because I have found that a tripod with adjustable telescoping legs, and a head that is fully adjustable with respect to tilt and inclination, provides completely adequate flexibility in positioning (on the couch seat, between recliners, etc.), I have devised a simple way to securely attach the mike to tripod head while elevating it sufficiently from the flat tripod head.

I bought a 1/4" - 20 x 12" solid brass threaded rod from Home Depot (in the hardware section, next to the nuts and bolts). I took the mike with me so that I could pick out one which threaded in easily into the bottom of the mike. I attached the other end of the brass rod to the screw on the tripod head using a 1/4" nut (a true coupling nut would have been better but I did not find one). See attached picture.