Audyssey's Next Generation of Room Correction (MultEQ-X)

[krabapple]

First, any Youtube video that claims to 'expose' something like Audyssey is suspect, and second, he clearly has no clue what DEQ is for. 'Simplified' indeed.

 

[montyliam]

Does anyone have any advice on how to integrate properly the sub to each of the LCR? I'm having a hard time figuring out how to optimise integration accross the LCR and not just individually? Would Multi Sub Optimiser be useful even though I'm only using one sub?

 

[pmar4015]

I could never get MSO to work in terms of alignment with mains (although I had fabulous results using MSO align subs with each other…..probably user error on my part however); furthermore, my understanding, as a general matter (i.e. not specific to MSO), is you have to choose between L/R or the Center channel (or find the best compromise). I use the approach (assuming you have access to a measurement microphone and REW) found in the following link:

. Also, the alignment tool in REW is very handy as well.

 

[chych7]

Does anyone have any advice on how to integrate properly the sub to each of the LCR? I'm having a hard time figuring out how to optimise integration accross the LCR and not just individually? Would Multi Sub Optimiser be useful even though I'm only using one sub?

I use Multi Sub Optimizer to do this with subs+mains integration. Works pretty well, smooth transition from subs to each LCR.

 

[montyliam]

One more question (sorry for being annoying), is it best practice to EQ the LCR with crossovers enabled or disabled?

Also does anyone happen to know the slopes of the crossovers in the Denon AVR. I’ve been reading through the thread and seen mentioned 2nd order high pass for the main channels and 4th order low pass for the LFE?

 

[HarmonicTHD]

Does anyone have any advice on how to integrate properly the sub to each of the LCR? I'm having a hard time figuring out how to optimise integration accross the LCR and not just individually? Would Multi Sub Optimiser be useful even though I'm only using one sub?

With one sub MultiEQX does a good job. MSO is helpful for multiple subs.

I don’t understand your last question from your last post. Audyssey always measures speakers individually (for good reason) and automatically keeps everything neutral before then calculating the EQ filters and suggesting xovers

 

[pmar4015]

One more question (sorry for being annoying), is it best practice to EQ the LCR with crossovers enabled or disabled?

Also does anyone happen to know the slopes of the crossovers in the Denon AVR. I’ve been reading through the thread and seen mentioned 2nd order high pass for the main channels and 4th order low pass for the LFE?

With one sub MultiEQX does a good job. MSO is helpful for multiple subs.

I don’t understand your last question from your last post. Audyssey always measures speakers individually (for good reason) and automatically keeps everything neutral before then calculating the EQ filters and suggesting xovers

Your second comment is interesting in that I have never fully understood if Audyssey suggested crossovers are based on the lowest frequency response the speaker can reasonably handle or rather the suggested XOVER is a function of whatever frequency provides the best ‘alignment’. I believe the former but am far from certain on that.

 

[montyliam]

Your second comment is interesting in that I have never fully understood if Audyssey suggested crossovers are based on the lowest frequency response the speaker can reasonably handle or rather the suggested XOVER is a function of whatever frequency provides the best ‘alignment’. I believe the former but am far from certain on that.

Im going to do some loop back measurements with REW and my AVR to see what the crossovers are doing!

 

[montyliam]

Does anyone know why when I import EQ filters from REW, the gains of each PEQ aren't also imported, only Freq and Q?

 

[pmar4015]

Does anyone know why when I import EQ filters from REW, the gains of each PEQ aren't also imported, only Freq and Q?

No. That is certainly odd. Did you save the PEQs generated in REW in ‘generic/text’ format as per the instructions in the Design Target Curve ——-> Import Parametric/Biquad EQ page?

 

[montyliam]

No. That is certainly odd. Did you save the PEQs generated in REW in ‘generic/text’ format as per the instructions in the Design Target Curve ——-> Import Parametric/Biquad EQ page?

Yes followed exactly, it imports Freq and Q properly just leaves all the gains as 0, makes the process 1000x longer!

 

[krabapple]

Your second comment is interesting in that I have never fully understood if Audyssey suggested crossovers are based on the lowest frequency response the speaker can reasonably handle or rather the suggested XOVER is a function of whatever frequency provides the best ‘alignment’. I believe the former but am far from certain on that.

The 'crossover' for bass management that an AVR reports from Audyssey calibration is based on the measured sound at the mic position. That means a measure of the speaker output plus any SBIR (low frequency reinforcement effect of walls near the speaker) and room mode effects. It is NOT guaranteed to match the speaker's true 'crossover' for bass management i.e. the manufacturer's spec'ed F3 point (which should be the low frequency at which its on-axis output drops 3 dB in an anaechoic measurement). And thus the AVR reported crossover is not necessarily the lowest frequency that the speaker 'can reasonably handle'. These are all reasons why setting it at 80Hz (rather than an AVR-reported lower frequency) is typically recommended. Small speakers need to be set even higher than 80. 'Full range' towers *might* benefit from lower.

 

[pmar4015]

Appreciate the reply

thanks

 

[HarmonicTHD]

Yes followed exactly, it imports Freq and Q properly just leaves all the gains as 0, makes the process 1000x longer!

Strange. When I checked back then it worked. Well that does not mean it is not broken now. Could you file a report with Audyssey support please?

 

[montyliam]

Strange. When I checked back then it worked. Well that does not mean it is not broken now. Could you file a report with Audyssey support please?

Yes I will do!

 

[montyliam]

Here are the AVR pre out measurements for the LFE channel and the front (left) channels, 24db slope for the sub, 12db slope for the fronts, adding a Butterworth high pass at the XO frequency (120hz), to get matching slopes for the sub and mains XO helped with the mains integration around that region.

 

[gorman]

Just got a new Denon. While waiting for Dirac (if it gets a correct implementato), I would be curious to try this.

How much does one lose in functionality through the iOS app? I have a 12.9" iPad with Bluetooth mouse and I would rather go that way, considering pricing and licensing.

Also, is there a good tutorial anywhere? I am familiari with REW but no expert. I have a Umik-1.

 

[tjcinnamon]

Just got a new Denon. While waiting for Dirac (if it gets a correct implementato), I would be curious to try this.

How much does one lose in functionality through the iOS app? I have a 12.9" iPad with Bluetooth mouse and I would rather go that way, considering pricing and licensing.

Also, is there a good tutorial anywhere? I am familiari with REW but no expert. I have a Umik-1.

I love MQX and prefer it to Dirac, especially when run with Dynamic EQ. I don't have any experience with the mobile app but I've read that it works quite well.

MQX requires a Windows PC to run. Definitely, worth it.

 

[FrantzM]

Just got a new Denon. While waiting for Dirac (if it gets a correct implementato), I would be curious to try this.

How much does one lose in functionality through the iOS app? I have a 12.9" iPad with Bluetooth mouse and I would rather go that way, considering pricing and licensing.

Also, is there a good tutorial anywhere? I am familiari with REW but no expert. I have a Umik-1.

I have both. The IOS App is better than the "regular Audyssey", the one you find in the AVR. It is however not precise, trying to "draw" a curve with fingers or BT mouse is tedious and not reliable: You may or, may not find the proper settings. MultEQ-X PC app is at a different level, a much better and more powerful application. It does have a learning curve but is IMHO worth the bother and expense. I was against it in the beginning, but have come to see it as indispensable. I haven't used and, don't know much about DIRAC. I do know, however despite the buzz, that there is no conclusive proof, that it is superior to Audyssey.
Currently and patiently working with MutEQ-X to fine-tune my system. I will post my REW measurements when done. I ran into a bizarre issue that I need to ascertain. It seems that Audyssey doesn't work with all app or software inputs on my AVR, a Denon AVR-X3400H, it could be a fault on the AVR itself. Audyssey definitely works with Spotify and on movies from the Apple TV 4K connected via HDMI.. It, "seems" to have issues with Apple Airplay when using Apple Music.
I will look into this more.

Questions to the collective: How can one use REW with Apple Airplay? IOW sending the test tones via Airplay? Is this at all possible?

Peace.

 

[pmar4015]

I love MQX and prefer it to Dirac, especially when run with Dynamic EQ. I don't have any experience with the mobile app but I've read that it works quite well.

MQX requires a Windows PC to run. Definitely, worth it.

I dont have DIRAC but I do have MULTEQ-X and I can say without hesitation that I agree wholeheartedly MULTEQ-X is worth it