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Bugs and suggest Improvements
Please post bugs and suggested improvements for WinMLS.

Subject MLS - Measurements using Log. Sweep

Date Tue Aug 13 2002 22:28

Author Lars Morset (morset@winmls.com)

File: sweeps.zip

We are currently working on implementing the logarithmic sweept sine method described in the attached zipped pdf-file. It also contains a very good discussion on most available measurement methods and is highly recommended. Unzip it and read it.

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Subject Beta Version Download

Date Wed Sep 25 2002 16:52

Author Ed Hatke (hatke@cincyvineyard.com)

Hi,
I purchased a personal version of WinMLS earlier this year. Recently, I decided to try the newest Beta Version of MLS. After I installed the Beta version and re-started MLS, it acted as if I was running an outdated demo version and asked me for an unlock code. When I entered the unlock code which I received when I purchased MLS, it rejected the code. I later noticed as well that installing the Beta version changed my serial number. Should I have not tried to install the Beta version? Can you help? Or should I just re-install my original version? Thanks!

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     Subject The Beta Version needs new Unlock Code

Date Thu Sep 26 2002 13:21

Author Lars Morset (morset@winmls.com)

Dear Ed, thanks for your question. The new beta version needs a new unlock code, it cannot use the old one. I have e-mailed you the new code so you can test it for 40 days.

Please note that we will post a new beta version update soon, and for all these updates you can use the same unlock code.

I hope this is of help.

Best,
Lars

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Subject Sine sweep using very high output gain

Date Tue Oct 1 2002 10:22

Author Lars Morset (morset@winmls.com)

File: Effects of Log Sine Sweep Output Amplitude.doc

The attachment is a very quickly made document that shows what may happen if you use too high output when using log sine sweep.

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Subject Latest Beta unlock codes

Date Mon Oct 28 2002 11:59

Author Jon Longtin (jlongtin@ms.cc.sunysb.edu)

Lars,

Can we use our existing unlock codes for the most recent beta versions (WinMLS_LatestBeta.zip, Oct. 16, 2002 in download section).

The beta and my current version have different serial numbers, and I am reluctant to transfer the license as an earlier version of the beta refused the license transfer.

Thanks,

-Jon Longtin

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     Subject Beta unlock codes

Date Wed Oct 30 2002 00:35

Author Lars Morset (morset@winmls.com)

To use the beta version, you need an unlock code for the beta version...
You are right, do not transfer the license for the version you have purchased to the beta version.
Send me an e-mail with the new serial number for the beta version. We posted a new update yesterday. Contact us, and we will send you information about how to download and install it.
-Lars

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Subject New beta available

Date Wed Nov 27 2002 09:48

Author Lars Morset (morset@winmls.com)

The new beta version is posted at:
http://64.41.85.4/downloadWinMLS/WinMLS2000Update/WinMLSbeta4.exe
If you previously have purchased or evaluated WinMLS, send us an e-mail to get the unlock code. Otherwise, fill inn the form at
http://www.nvo.com/winmls/evaluate/

The new features are not yet documented. If you test it, and have questions or suggestions or find bugs, please report it by posting a message at
http://www.nvo.com/winmls/discussionbugs/

Please note that the swept sine settings and some other new options are not yet saved in the measurement settings.
There will still be improvements before the release in January.

Best regards,
Lars Morset

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Subject New version for testing

Date Wed Feb 19 2003 01:02

Author Lars Morset (morset@winmls.com)

File: New Features ver 4_2.doc

Information is found here
http://www.nvo.com/winmls/latestbeta/

Best,
Lars

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Subject Production control and distortion

Date Fri Feb 21 2003 09:53

Author Lars Morset (morset@winmls.com)

File: Production line testing using WinMLS3.doc

See the attached document for an example on how to use WinMLS for measuring distortion and production control.

Best,
Lars

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Subject Polarity measurement and tolerances

Date Thu Mar 6 2003 08:56

Author Lars Morset (morset@winmls.com)

File: New Prod Control features - Polarity and Tolerances.doc

We have added new features for production control. Please see the attached document (link above).

Best,
Lars

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Subject Save workspace and room acoustics update

Date Thu Mar 20 2003 15:08

Author Lars Morset (morset@winmls.com)

File: ChangesBeta62.doc

A new version is posted at www.winmls.com/latestbeta
See the attached file (link above) for an explanation of the new features.

Best,
Lars

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Subject Building Acoustics ISO 140-4/ISO 717-1

Date Fri Mar 21 2003 11:58

Author Lars Morset (morset@winmls.com)

File: Building Acoustics Airborne In Verison Beta062.doc

Please find a description on how to use WinMLS for performing airborne building acoustics measurements according to the ISO 140-4:1997 and ISO 717-1:1997.
Above you will find a link to a word document explaining this. Contact us and we can send you a zip-file containing the setup needed to test this. You can unzip it to the folder where WinMLS is installed.

Best,
Lars

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     Subject ACOUSTIC STUDY

Date Sat Sep 10 2005 20:09

Author AMR (AMRSTEEL2000@YAHOO.COM)

THE PROCEDURE FOR CALCULATING THE OVERALL VALUE OF Dnt,w
ACCORDING TO ISO 717-1:1997

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Subject Room acoustics/Speech BATCH processing

Date Sat Apr 5 2003 10:14

Author Lars Morset (morset@winmls.com)

File: Batch processing room acoustics with WinMLS beta63.doc

If you want to compute parameters from multiple files in one go, please see the attached document linked above.

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Subject Guide to Impedance measurement - beta63

Date Sat Apr 5 2003 10:58

Author Lars Morset (morset@winmls.com)

File: Impedance measurement using WinMLS.doc

See the attachment above for at guide to measuring impedance.
Comments are welcome.

Lars

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Subject Wizard for measuring impedance

Date Sat Apr 5 2003 11:17

Author Lars Morset (morset@winmls.com)

File: Impedance.zip

Download the attached zip-file and unzip it to the folder where you have installed WinMLS beta 063 (or later).
It should give you at step-by-step procedure to measure impedance. The figures in the wizard will be improved.
Comments are welcome.

Best,
Lars

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Subject Beta066-new measurement interface

Date Fri May 23 2003 11:04

Author Lars Morset (morset@winmls.com)

File: ChangesBeta66.doc

Please see the attached document (link above).

Best,
Lars

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Subject Using the computers onboard soundcard

Date Sun Jun 1 2003 20:58

Author Håvard Christensen (havard@kulturhus.no)

File: Onboard.doc

Please read the attached document.

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Subject Sound analysis FFT

Date Thu Jun 5 2003 02:23

Author Peter van Oosterum (p.v.oosterum)

Dear Mr Morset,
I may have questions quite uncommon to you, but as a researcher in natural health practice I found that somewhat missing frequencies in peoples voices may have a theraputic and/or a diagnostic implementation. I have been working on his subject for about 10 years now and what I need most is a program that cam make a reliable FFT within the reach of the normal human voice and also provides me with the posiibility to make combined sinus signals from 0.1 up to 10.000 Hz.
My question may strike you as odd an unprofesional, but sice I got your name from a reckord edditing studio professional I just shoot away my question thinking: well you never know what it leads up to.
Any way, thanks for answering my question, if you can
Peter P. van Oosterum
Natural Health Practicioner

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     Subject FFT and combined sinusoids

Date Thu Jun 5 2003 14:50

Author Lars Morset (morset@winmls.com)

Dear Mr. Oosterum,
thanks for your question. Reliable FFT analysis is supported in WinMLS. You have a large amount of flexibility in setting the parameters.
Making combined sinusoidal signals is not yet supported in the software if you mean several sinusoids simultaneously. How many sinusoids would you like to generate simultaneously?

Best,
Lars

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Subject Get started with the beta version

Date Tue Jun 10 2003 10:40

Author Lars Morset (morset@winmls.com)

File: Get started with WinMLS.doc

Click the link above to get started with the beta version of WinMLS.

Best,
Lars

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Subject Comments on Room Acoustics

Date Sun Jun 22 2003 22:02

Author Lars Morset (morset@winmls.com)

File: Problems in Build 68.doc

Click on the link above to open the document.

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Subject New beta available

Date Wed Jul 30 2003 11:10

Author Lars Morset (morset@winmls.com)

File: GetStartedWithWinMLS.doc

See the download section under Latestbeta for info.
See attachment (link above) to get started.

Best,
Lars

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Subject New building acoustics documentation

Date Wed Jul 30 2003 11:18

Author Lars Morset (morset@winmls.com)

File: Building Acoustics Airborne In Verison Beta071.doc

Click the link above to read documentation about building acoustics (right-click to download).

Best,
Lars

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Subject New room acoustics documentation

Date Wed Jul 30 2003 12:52

Author Lars Morset (morset@winmls.com)

File: ShortGuideToMeasuringReverbTimeWinMLS2003andNorsonic.doc

Please see the attachment above.

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Subject surround sound measurement?

Date Tue Feb 3 2004 09:07

Author Knut Hvidsten

Just a thought.... I can see a potetial market for measuring surround sound systems. Is it possible to encode the stimulus to a 5.1/6.1/7.1 format so that a single coax/optical connection is all that is needed from computer to the amplifier of a surround system? Perhaps the logswept sines would survive the data compression schemes better?

This way, a ton of surround sound users could test their entire system by only setting up a single omni microphone. And the results of tweaking eq, levels and delay could be readliy seen in mls plots (as compared to doing simple measurements on the 5.1 analog inputs found on most amps that bypass internal processing)


best regards
Knut Inge

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     Subject Surround in WinMLS 2004

Date Mon Jan 10 2005 20:48

Author Lars Morset

Thanks for your suggestion. In WinMLS 2004 we have a setup named 'Sound System_Stereo and Surround' that will guide the user through such a measurement.

But you still need to connect the sound card left channel output to each input channel.

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Subject WinMLS, MATLAB and emphasis filter

Date Thu Dec 8 2005 13:07

Author Rousseau (mrousseau@bwspeakers.com)

This is not a bug, but it is worth knowing.

If you use Matlab (a recent version like 7 R14) to create .emp files, you have to use the old MATLAB 6 format to save it, using the -v6 option, otherwise WinMLS won't be able to open the .emp file.

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