"Official" Audyssey thread (FAQ in post #1) - Page 1980

+3.5 is a good setting. Do you mean a second round back to back? Audyssey normally goes through each speaker and sub 6 or 8 times depending on the Audyssey version you have.

 

Probably.

 

You have been specially selected from countless thousands LOL. I bet Readers Digest treat you the same! :)

 

It is normal for Audyssey to do a second (and a third if necessary) round, but only if it detects high ambient noise when performing the measurement. A second round in no way invalidates the calibration though. A trim of +3.5 is fine.

 

Take a look at these FAQ answers for more information:

 

 

 

b)9.   Why is Audyssey 're-chirping' and raising the level of the test tones, even though my ambient noise is very low?

 

b)10. Why can I barely hear the test tones when Audyssey is calibrating my subwoofer?

 

b)2.   Why is Audyssey reporting 'Ambient Noise Too High'?

Thanks, that's exactly the type of feedback I was looking for - I guess I was concerned that I was paying for a technology (XT32) that I wouldn't fully utilize as I have no immediate plans (due to WAF) to setup the room with HT requirements as a frist priority. However, it sounds like since I'm not going to do that I stand to benefit even more. Thanks again.

After getting feedback from this and the Denon 4520 thread I think I've just about convinced myself to go with the 4520 over the 3313. However, if I can successfully convince the wife to incorporate height channels (no room for wides), can DSX be applied to two channel sources? This isn't a dealbreaker but I noticed today in this thread that DSX 2 was announced which deals with 2 channel sources. So I guess I was wondering if you take a 2 channel source and apply PLIIx to get 7.1 matrix playback can you then apply DSX to derive height information?

I figure if I'm going to jump on the 4520 bandwagon I'm going to annoy the wife until she stops vetoing the height channels - I'll feel better about my upgrade if I can hook up a couple of extra speakers:).

If I record music in a concert hall, using microphone positions that capature the sound of the hall, then play it back in the same concert hall, the hall sound will fight the recorded hall sound, yielding, likely, a spongy-sounding inarticulate mess. Heck, I don't even use reverb on my guitar amps for the same reason.

Saw a very fine keyboardist using a highly advanced piano program for live performance with a band. He used a setting that recreated a close mic and a more distant mic on a grand piano, and it sounded great where he was playing, 3 feet from his speaker. It was utterly unintelligable in the club because his native sound was so awash in reflections that the club's reflections just killed the direct sound of the piano. Literally sounded out of tune at times. Shame, really.

any of you know if Audyssey Pro in this unit allows for shelving filters or any other type of L/T equivalent?

Specifically I'm looking to see if Audyssey Pro in the Marantz AV8801 has the capabilities of doing any sort of low end improvement via shelving filters or similar approaches...

FYI, not all of us use the same color scheme you do. A lot of your post is almost invisible.

Yes, DSX (at least the first version) only works on 5.1 source content. But you can use another method (like PLII) to first matrix the stereo signal and then layer DSX on top to generate heights and/or wides. With the 4520 you would have your choice of DSX, PLIIz, or DTS Neo:X for generating height channels.

 

I'm glad it's not just me!  I also have issues when Keith posts links to the FAQ.  FWIW, I use the AVS Black skin.  If I'm on a PC then I just "highlight" the text which makes it dark and visible.

Is it OK to adjust the speaker distance after calibration if Audyssey measures one at a .5 or 1", I'm finding that when running calibrations there are small variations from a previous calibrations or is this a no no!

With the exception of the subwoofers, it is generally not recommended to adjust the speaker distances calculated by Audyssey. It is not uncommon to have slight variations in the distances because of slightly different microphone positions. I would trust what Audyssey calculates.

Thanks Batpig. I just figured some sports programming that may still be in 2.0 can possibly benefit from heights. In any case, it seems I'll be covered.

Thanks!

 

Yes, this is a fault in the skin designs offered by AVS. Done properly, the links would translate correctly to the offered skins. There is no way around it because if I change the colour of the links to suit the black skin, then they are bad for the regular skin.

 

It is not recommended to change the distances (delays in fact) set by Audyssey. Audyssey is very accurate in setting the distances (more accurate than the resolution most AVRs offer). The small variations are because the mic is not in the exact same place each time you measure (No 1 position).

 

e)2.   Is it OK to change the distance settings Audyssey sets?

 

LOL - I wish I could discipline myself to read ahead - I just replied with a more or less exact copy of your post...

 

Here's another one for you.  How do you get the entire post to quote when you reply to a post which already has a quote from another post in it?  For example, I hit the quote button on your post and it gives me what you see above.  If I hit the multi and select the relevant posts then they look like this:

 

 

 

 

I can't seem to figure out how you get the nested quotes in your replies?!

 

p.s.

My next post was going to ask you what your post count would be if only you read ahead before responding to other posts!

I hate it what that happens...

I use the Black skin and Firefox 17.0.2 (or 18 at home) on a PC running Windows 7. For me, the Quote button always nests all of the quotes that are in the post that I'm quoting. Like has happened here. I have to manually edit whatever is in the Content box to get anything else.

My understanding is that the MultQuote is for quoting multiple separate posts in a single reply Content box. I've only used it once, though.

I don't disagree with your description of what's generally, recommended, but I thought that the distances were all determined from the first microphone position, not from the later positions. So they should all be right (within measurement error) except for the added distance to the subwoofer measurement that results from bass management. Tell me if I'm wrong...

Any time you find something like that at a web forum, there's probably a setting in your user account that will change it. It took me three tries at another forum recently to find the setting that would stop sending me emails for every post in every thread I had posted to

 

OK, to be precise, you can get slightly different distance (delay) settings if there is a slight variance in the placement of the microphone for the first measurement position of an Audyssey calibration.

 

Are we in agreement now?

Well done! There was an option to remove nested quotes on replies checked in my settings and that is what caused it. Thanks!

I don't understand what you mean by "variance." If there were two or more measurements, there would be a variance (as in the carpenter's dictum, "Measure twice and cut once."). But you're saying there is variance in one measurement??

 

No - you're at cross purposes. Jerry is saying the same as I said in my reply to the same question. The distance settings are set from the first mic position used (usually the MLP). If you make a million calibrations without ever moving that mic, you will get the exact same distance each time. If you pack it all away and then come back a week later to run a fresh calibration, it is almost impossible to put the mic in the exact same spot as it was before - this will give you a likely different distance setting. Audyssey measures the distance with exceptional accuracy, usually with much more resolution than AVRs have, which use either 6 inches or 2 inches AFAIK. Hence, move the mic a little and you are likely to get a different measurement. If the resolution of the AVR is 2 inches and the first cal was taken and gave a distance (delay) of say 10 feet 6 inches, it may have been right on the 10 feet 6 inch mark. Moving it a quarter of an inch for the next cal could tip it to the 10 feet 8 inches result - it looks like you have moved the mic 2 inches but in reality you didn't and don't need to in order to get that variation. IIRC, and ICBW on this, I remember reading on Ask Audyssey that Chris said the measurement was accurate to 0.2 of an inch. I have taken the liberty of editing Jerry's post for further clarity (edits in red above).

^ Keith, thanks for putting an end to what was becoming a peculiar discussion.

I've got a question regarding the use of RS SPL meter as a final check for trim level.

Here's a scenario:
Meter reads 75dB for L,C,R,SL,SR.
Meter reads 75dB for LFE.

Is the LFE level really about 75dB? The meter could be under-read in the low bass region. If we take the meter reading of 75dB, in reality, it could be 90dB or more?

I do know that there are many websites that post the correction table for different frequencies. How do we know which correction value to apply for when the AVR is playing its internal LFE test tone? Could the AVR be playing a broad range of bass pink noise?

It is best to stick to bold, italic and underlined text. CAPITALIZATION is also effective for making a point. Fancy colors are an affectation.

IMO.

Jeff