Announcement

**Mike_TX** · 06-12-2010, 01:35 PM

Audyssey MultEQ Pro kit

Audyssey Pro information
See my HT thread link (here & here) for info on personal (vs. dealer) ordering of Audyssey Pro

Better resolution (32 measures vs. 8) and ability to "see" the results (before/after screens).
Link

Installer Program - gear:
What’s included in the Installer Kit?
The Installer Kit includes a calibrated preamplifier, calibrated microphone, microphone stand, MultEQ Pro Application CD, mini-XLR cables, mini-XLR-to-RCA adapter, USB cable, R232 cable, and a carrying bag to hold it all.

General Installer FAQ
FYI...
(I added red. Important things I am/was looking at for using a laptop that might change and knowing the probable "Pro" cost versus buying on my own with the possibility of unlimited tweaking repeats.)

"How much should I charge for an Audyssey MultEQ Pro Calibration?
There is no MSRP for an Audyssey MultEQ ProÂ® Calibration. Pricing is set by the installer—a survey of all Audyssey installers found that the average selling price for the calibration is $500. An installer can adjust this price up or down depending on the number of measurements, time spent on the job, and expertise using the software application."

"Can I sell an Installer Kit to a customer? How much does it cost?
An installer may sell an Audyssey installer kit to a customer so he may calibrate his own system. MSRP for the Audyssey Installer Kit is $550."

"Can I install the MultEQ ProÂ® software application on more than one computer?
Yes. The MultEQ ProÂ® software application may be installed on multiple computers."

"Can I use the same license for multiple receivers?
No. Each Audyssey Installer-Ready product requires a separate license.

Do License Keys expire?
Yes. Once you purchase a License Key it can be used any time in the next 30 days. If the installation happens after 30 days or if you wish to return to the customer for a re-calibration at a later time, you will have to re-generate a new key (at no cost). This is done by logging in on the Audyssey Installer website and clicking “generate new key” (under Purchase/Activate MultEQ Pro Licenses)."

Audyssey Installer website: http://www.audyssey.com/InstallerWeb/Home.aspx

Contact & Tech Support

Headquarters:
Audyssey Laboratories, Inc.
350 South Figueroa Street, Suite 233
Los Angeles, California 90071
Tel: 213-625-4300
Fax: 213-625-4383

Send us your questions or comments:
Audyssey Customer Support
[email protected]

------------------------------------------
$550 for kit
$150/license (each AVR)

You can call Audyssey at Contact/installer list and tell them you don't have a local installer and want to do it yourself.

**Mike_TX** · 06-12-2010, 02:01 PM

Calibration Software
- Acoustisoft ETF
---- RPlusD (= ETF6, 3/3/09) - link
---- ETF5 (replaced by RPlusD = ETF6) - link
---- Rubinson, Kalman, 7/1998 – Stereophile – on ETF4 - link
- REW - Room EQ Wizard
---- REW link
---- REW help files - link
- Rives Audio software site - link .
- True RTA - link

**tesseract** · 06-12-2010, 09:21 PM

Excellent, thanks for the extensive leg work, Mike. I will be referring to this page.

**Mike_TX** · 06-13-2010, 12:15 AM

Originally posted by tesseract

Excellent, thanks for the extensive leg work, Mike. I will be referring to this page.

Thanks.
I will try to organize the cut and paste mess more later.
I just got back from a great Indian meal in Washington DC with great conversation and wine.
Time to crash out.

Mike

**sbdman** · 10-22-2010, 10:28 AM

Now that Audyssey MultiEQ XT32 is out, wonder if anyone has tried this and seen any improvements? Has MCACC or YPAO seen improvements?

I know I always have to tweak each channel after an auto setup to equalize the volume a db or two. And I've heard quite a few complaints about auto setup, particularly with crossover being too high (sounds like post correcting this won't include any equalization below what was auto set), or too low which always happens for me.

So, my biggest question is, is manual correction the way to go, and do most receivers give you the ability to set the level for each equalization range by playing a tone in that range so you can use a meter to adjust?

Auto correction takes a good amount of time, especially with 9 point tests. I would think the manual method if it's available, would be a bit quicker? And does it give you a better soundstage and overall experience?

**etcarroll** · 10-22-2010, 10:59 AM

Nice work Mike.

**Mike_TX** · 10-31-2010, 08:09 AM

iPhone SPL meter application recs?

Cross posted here, but...

Anyone using iPhone sound pressure level (SPL) apps?
Recommendations?

I just read a Sterophile review where he was looking at the SPL at a concert and thought it might be neat.
One of the apps descriptions said it is better than the RS meter, which I doubt.

Also, I've seen: Audio Tools ($19.99) - SPL, RTA, Generator, Line Level Tests, Audio Scope...etc

Studio Six Digital SPL Meter (or just "SPL") has some high rankings but one is $0.99 and one is $8.99

I've also seen noted a difference with the 3G microphone, but no mention of the iPhone 4 mic.

Thoughts?

Mike

**Mike_TX** · 10-31-2010, 08:12 AM

What calibration products do you use (mult answers ok)?

Originally posted by etcarroll

Nice work Mike.

Thanks.

I was thinking of starting a separate thread/poll linked to this thread asking people what EQ/calibration they use.

The polls are limited to 10 items.
Here is a partial list -- what to add or cut?

What calibration products do you use (mult answers ok)?

- None
- Manual
- Audyssey products (incl SVS ASEQ1) - please specify in post
- XTZ
- MACC
- Trinnov
- DSP
- Behringer product
- YPAO

....

Mike

**Mike_TX** · 11-03-2010, 11:18 AM

Subwoofer Setup Guide by Bossobass

Subwoofer Setup Guide by Bossobass - PDF enclosed...

Mike

Attached Files

Subwoofer Setup Guide by Bossobass.pdf (41.8 KB, 32 views)

**Mike_TX** · 11-22-2010, 11:43 AM

Home Theater Spot -- Room Acoustics Discussion Forum - links

More links from a FAQ I was working on at Home Theater Spot...
(obviously also not complete, but a work in progress...)

Home Theater Spot -- Room Acoustics Discussion Forum
Thread link
HT Acoustics FAQ link

Education
GIK Acoustics (Education) - http://www.gikacoustics.com/education.html
Sound Isolation (Green Glue) - http://www.greengluecompany.com/technicallibrary.p...

Useful Links
Acoustical Treatments that Don't Work (HTS) - http://www.hometheaterspot.com/showtopic.php?tid/1...
Acoustical Forum (Rives) - http://www.audioasylum.com/forums/rives/bbs.html
AVS Forum

Services
Erskine-Group Architectural Acoustics- http://www.erskine-group.com/
Rives Audio - http://www.rivesaudio.com/
Seaton (Mark)

Companies / Products
Fiberglass (703) - ...
Fiberglass (705)
GIK Acoustics - http://www.gikacoustics.com/
Guilford OF MAINE (GOM) fabric - acoustically transparent
--- GIK - http://www.gikacoustics.com/gom_fabrics.html#build
Green glue - http://www.greengluecompany.com/
RPG Diffusor Systems - http://www.rpginc.com/
QuietRock drywall - http://www.quietrock.com/quietrock-drywall.html?_k...

Calibration CD / Software
See also:
- "SPL meters, Sub calibration, etc" thread - http://www.hometheaterspot.com/showtopic.php?tid/1...

-----------------
I haven't checked that all the links transferred.
I will update post #1 occasionally and at the HTS site.

Mike

**Mike_TX** · 01-13-2011, 09:30 PM

Dayton OmniMic Precision Measurement System

Anyone using this...

Dayton OmniMic Precision Measurement System
From AVS Thread:

Dayton OmniMic Precision Measurement System

http://www.avsforum.com/avs-vb/showthread.php?t=1293353

Looks like Dayton has made the move to come up with a very simple system for measuring, with a calibrated usb mic. Seeing as I haven't had the best luck with REW on the hardware side I'm going to pick one of these up when they become avail. but it looks promising & simple from what I can see...

Looks like Dayton has made the move to come up with a very simple system for measuring, with a calibrated usb mic.

Seeing as I haven't had the best luck with REW on the hardware side I'm going to pick one of these up when they become avail.
But it looks promising & simple from what I can see.
Kal Rubinson stated he'll be getting one, I would imagine to put up against the XTZ unit.

Parts Express Order page

Page not found

http://www.parts-express.com/pdf/390-790b.pdf

User info / Manual - pdf download

MSRP: $350
Parts Express (from PDF): $298

From PE site

Dayton Audio's OmniMic is a must-have for system integrators, acoustic engineers, and A/V installers.
It was developed in collaboration with Liberty Instruments, inventors of the Praxis analysis tool.
The OmniMic provides quick and accurate measurements that will reduce installation time, saving you both labor and money.
Test signals may be initiated from the host computer, or from any audio CD player.
System includes calibrated USB microphone, mic clip, software and test signal discs, 6 ft. USB cable, and carrying case.
Compatible with Windows XP, Vista, and Windows 7.

Extremely quick and easy to use with intuitive software—open the box, start testing in minutes
High quality calibrated USB microphone for accurate measurements
Developed in collaboration with Liberty Instruments, inventors of the Praxis Measurement System
Perfect for setting up home theater systems
Design and tune speaker systems and arrays
Optimized for use with Netbooks and Laptop computers to enhance portability
Compact, portable, accurate, affordable
For professionals and hobbyists
Compatible with Windows XP, Vista and Windows 7

Measurements include:

SPL meter with A, B, C, or no weighting
Spectrum analyzer, FFT, or RTA
Frequency response with phase and impulse response
Oscilloscope function to view complex waveforms
Harmonic distortion: 2nd, 3rd, 4th, 5th harmonics plus THD
RT60 reverberation: measures sound reflection
Bass decay function identifies room modes and helps determine proper subwoofer placement

Parts Express thread -- Link

Mike

**tesseract** · 01-14-2011, 03:40 AM

Re: Dayton OmniMic Precision Measurement System

This is finally available? It is new, so no one has it yet, but I expect it to become pretty popular.

**Mike_TX** · 01-14-2011, 09:27 AM

Originally posted by tesseract

Re: Dayton OmniMic Precision Measurement System

This is finally available? It is new, so no one has it yet, but I expect it to become pretty popular.

It is available at Parts Express now (see links above)
Check out the AVS thread.
Someone was posting graphs in either the Audyssey or Seaton AVS threads.
I'll try to track that down and link later.
I tried REW, but never really got the hang of it.
This might work for me.
Do I need it, no.
(Well, define "need" :poke:)

This might be a price sweet spot to get more people measuring and posting results.

Mike

**HuskerOmaha** · 01-14-2011, 09:55 AM

You know, this sounds like the perfect "self" christmas gift for mojave or tesseract.

Now if they only had new equipment to test it on.......:hide:

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Room / Speaker Analysis and Calibration

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