TEF TALK

The ListServe

1audiohack — Wed, 05 Aug 2009 04:36:27 GMT

Is it possible in any way to view the list serve archives?

I would bet most of the questions asked in the forum have been answered or discussed already, too bad that information is unavailable to those of us who were not present at the time. It is troubling to see how many help and information requests seem to go unanswered. Even if they were answered on the list serve or in a PM that does not help the masses and, anyone looking in the forum will think that this is business as usual here and not even bother.

As an opposite example, I have three LinearX programs and have yet to come upon one question or problem that I did not find the answer in the literature or on the forum.

So how can we access all that information?

All the best,
Barry.

Forum: TEF 20+ 25

Rub-Buzz Testing

Brian — Mon, 27 Jul 2009 22:07:34 GMT

I am new to the system, and generally frustrated with the documentation. I have emailed goldline support. I heard back on one question, but not on the other... It has been over a month.

I need to setup a production test of raw speaker drivers. I can to frequency response, and harmonic distortion. I need to do rub-buzz testing as well. Can some one give me an idea of how to do a pass/fail rub-buzz test? I have done some FFT measurements with 125Hz Excitation and can see the rub or buzz, but haven't figured how to do a pass/fail.

TEF25
V6.8.5.22 Jun 25 2007
PEQ 6.6.3
Ptest 6.6.3
SLX 6.8.0.16

Is there a book or white papers that would go into more details on this?

Thanks,
Brian

Forum: General Audio Measurements

Is this forum dead?

Brian — Thur, 16 Jul 2009 20:40:12 GMT

Just wondering if the forum what is happening here. It seem to be pretty much dead.

Thanks
Brian

Forum: TEF 20+ 25

New RTA software

Doug — Wed, 25 Mar 2009 22:55:20 GMT

HI All,
There is new BETA version of RTA available on the Goldline website. You can try it for 60 days for free. Lots of new features, so check it out!

Doug

Forum: TEF 20+ 25

TEF 12 + Looking to Buy

JJS — Fri, 12 Dec 2008 04:44:58 GMT

Looking to purchase a 12 + in good condition.

Thank you\
JJS

Forum: Buy - Sell -Work

TEF EZTUNETH1 Kit for sales

bpost — Wed, 26 Nov 2008 16:25:24 GMT

EZTUNETH1 kit for sale. Also included in the bundle is Gold Line ZM1 Impedance Meter and Gold Line Phase/Polarity Analyzer. This was our second field kit and was rarely used and could be put to better use by another individual or company. Make a reasonable offer and it is yours. Feel free to call me with any questions:

Brian Post
LouisClark, Ltd.
847-864-0271 x105

Have a great holiday season.

Brian

Forum: Buy - Sell -Work

phase measurmant's

kold81 — Tue, 29 Jul 2008 11:18:02 GMT

Hi there,

I use the Tef 25 to makes some measurements, practically i started a month ago. I did some first measurmnats in pretty big sports hall where the Community loudspeakers R series are installed, in one cluster on middle of hall. I tried to measure a phase diffrents between the speakers in overlapping area. And I got very strange results, I did measurements like is written in manual, I know how the TDS method works and how to set it (delay etc). In enclosure I attached the files from measurmants, as You will see the phase graph looks strange, the phase degrees looks strange . Where I did the mistakes and how it supposed to be set?

Marcin Zimny

acoustic, sound system designer.

sory for my Eanglish..

Forum: TEF 20+ 25

Subwoofer Parametric EQ

jon — Tue, 15 Jul 2008 00:07:57 GMT

Does anyone have any recommendations on EQs? I've been trying to find the Goldline Programmable EQ on their website but have had no luck. Certainly looking for a simple mutiband parametric EQ for subs that I could use reliably to augment systems with limited abilities such as those with A/V Receivers.

Important features would of course be narrow bandwidths and multiple filter between 0Hz and 100Hz. Constantly variable with stacking ability would be great too. Any suggestions of tried and true gear and or methods would be great.

Thanks all

Forum: General Audio Measurements

TEF 25 Not Responding

jon — Sat, 28 Jun 2008 01:15:29 GMT

I'm getting an error when trying to use my brand new unit.

The preamp is not responding to the software. I have shot an email to tech support also but assume they are off for the weekend. Can this be anything other then a DOA?

I've got lights on at the 48V and output locations and the POWER LED is dim at best regardless of whether I plug in just usb or if I use the supplied power adapter.

Please help, thanks!

Forum: TEF 20+ 25

MLS or TDS, that is the question...

Sonart — Fri, 02 May 2008 21:13:39 GMT

Hi everyone,

I do acoustical measurements in halls and rooms; studios, control rooms, home theaters...

What would be the best software for me; MLS or TDS?

What about the following I read on Gold-Line's web site:

Combined with your personal computer and the appropriate software, you can transform the TEF into a TDS analyzer, noise analyzer, real time analyzer, and now, a maximum-length sequence analyzer. So, you no longer have to choose between TDS and MLS, as long as you choose TEF.

Sales and support are not able to answer my question...

Thanks,

Mike

Forum: TEF 20+ 25

Frequency response

Sonart — Fri, 02 May 2008 21:05:01 GMT

Hi,

I own a very old version of MLS software.

I perform frequency response and phase measurements by transforming, for instance, an ETC (from a time window) to frequency plot. About frequency response, is the TEF-25 system as accurate as the SMAART software?
There is something about dual channel FFT.. (?)

Thanks!

Mike

Forum: TEF 20+ 25

TEF-25 and ISO-3382

Sonart — Fri, 02 May 2008 20:55:24 GMT

Hello,

I would like to know if the TEF system can do the following measurements, according to ISO-3382;

Sound Strength, G, in dB
Early Decay Time, EDT, in s
Clarity, C80, in dB
Definition, D50
Centre Time, TS, in ms
Early Lateral Energy Fraction, LF or LFC
Late Lateral Sound Level, LG, in dB

Thanks!

Mike

Forum: TEF 20+ 25

RTA and ANSI

Sonart — Fri, 02 May 2008 20:50:32 GMT

Hi there,

Is the TEF-25 system with the RTA soft conform with ANSI standards? Class 1, 2 ...

(... of course with the proper microphone)

Thank you!

Mike

Forum: TEF 20+ 25

RT60 measurents... made easy?

Sonart — Fri, 02 May 2008 20:44:21 GMT

Hi there,

We are planning to go with a newer version of TEF and MLS software. With this system and this soft (or an other) is it possible to;

to get RT60 measurements automatically, like in a table or in a format that can be imported in a spreadsheet. By automatically, I mean, without having to examine all the filtered ETC plots looking at the slopes to determine the RT60.

to perform an averaging of several measurements made at different spots in a room?

Forum: TEF 20+ 25

Hyperspike

Sweeptime — Wed, 05 Mar 2008 23:15:40 GMT

OUCH! Man are these things loud. While non-disclosures limit what I can say, a Hyperspike is really loud and can project sound really far. For a look a what a TEF user is doing out at the ragged edge of electro-acoustical theory take a look at http://www.wattre.com/

Greg Miller
TEF Division
(203) 938 2588

Forum: General Audio Measurements