Dayton measurement mic, cal

[Phil_RC_1]

Just got the Dayton EMM-6 mic. Comes with a calibration "graph", which surprised me. I guess I miss-read the description when I ordered the mic, I was expecting a cal file, not a piece of paper with a graph.

I'm just beginning to learn and set up Soundeasy, and I also have a Behringer DSP 8024 that I want to use the mic with. How do I use this graph to cal the mic?

Phil

[djarchow]

Re: Dayton measurement mic, cal

You could draw out the CAL in SE but this will be a pain. Scan the paper cal and save it as an an image. Download SPLtrace and use it to trace the graph and save it off as an frd file, then import the cal into SE.

Regards,

Dennis

[critofur]

Re: Dayton measurement mic, cal

Who wants to call PE and tell them they need to include a file if they want to sell a "calibrated" mic? Somebody should, I've got a 2nd kid on the way prob. today or tomorrow so I'm swamped atm...

I don't have a calibrated mic yet myself, and I need one. I'd sure be disappointed if I ordered one and found it didn't come with the file.

[brianpowers27]

Re: Dayton measurement mic, cal

Who wants to call PE and tell them they need to include a file if they want to sell a "calibrated" mic? Somebody should, I've got a 2nd kid on the way prob. today or tomorrow so I'm swamped atm...

I don't have a calibrated mic yet myself, and I need one. I'd sure be disappointed if I ordered one and found it didn't come with the file.

+1

Even though they mark in the fine print that the graph is included, most people expect a file. It is all about expectations, isn't it?

[WWWJD]

Re: Dayton measurement mic, cal

Until proven otherwise, I would suspect that Dayton got Behringer to brand an ECM8000 mic for them..

http://www.parts-express.com/pe/showdetl.cfm?Partnumber=248-625

@$2 difference in current price.. suspicious indeed. Does the calibration graph look anything like this?



This file's available here for download: http://personal.inet.fi/private/ilkk...orrections.txt

If not... oh well I tried.

[fbov]

Re: Dayton measurement mic, cal

Every calibration graph I've seen is so flat I don't know why you'd bother creating a cal file; the error is far less than I suspect I can hear (not true on my recent-vintage ECM8000).

Think of it as proof of calibration.

Frank

[critofur]

Re: Dayton measurement mic, cal

Hmm, then, by "calibrated" they may also mean that the mic's circuit board has had the appropriate components adjusted to flatten the mic's response.

[WWWJD]

Re: Dayton measurement mic, cal

Hmm, then, by "calibrated" they may also mean that the mic's circuit board has had the appropriate components adjusted to flatten the mic's response.

I wouldn't take "calibrated" to mean that the mic has been adjusted.. I understand it to mean that next to a flat calibrated source, the microphone's response curve is accurately graphed so that you can make accommodations or adjustments in your software / RTA / etc.

[WayneN]

Re: Dayton measurement mic, cal

I am curious; right now the Behringer ECM8000 is on sale at http://www.markertek.com/Audio-Equip.../ECM8000.xhtml for almost the same price as the Dayton EMM-6. From all my reading lately, they also should be calibrated, which is the better deal? Is the graph that comes with the EMM-6 accurate, has anyone taken the graph and converted it to a cal file and are you happy with the results?
Should they be calibrated no matter what the graph or cal file that comes with the respected product says?

WayneN

[williamrschneider]

Re: Dayton measurement mic, cal

Here's what one person found...

http://www.htguide.com/forum/showpos...0&postcount=69

[poneal]

Re: Dayton measurement mic, cal

About 2 years ago there was a gentleman named Ken something that did mic calibrations and sent you the corresponding file. RomanB has his address IIRC.

[WayneN]

Re: Dayton measurement mic, cal

The persons name is Kim Girardin
E-mail: [email protected]

I sent him an email with some questions and am waiting a response.

WayneN

[Phil_RC_1]

Re: Dayton measurement mic, cal

Until proven otherwise, I would suspect that Dayton got Behringer to brand an ECM8000 mic for them..

http://www.parts-express.com/pe/showdetl.cfm?Partnumber=248-625

@$2 difference in current price.. suspicious indeed. Does the calibration graph look anything like this?



This file's available here for download: http://personal.inet.fi/private/ilkk...orrections.txt

If not... oh well I tried.

Thanx for trying.

The graph looks more like the one here http://www.htguide.com/forum/showpos...0&postcount=69 and very similar to the one on the PE description page. Even though they are all similar, they are all obviously different, unique and serialized. Maybe it IS too little to worry about. Just curious why PE would take the time (or spend the $$) to test and print a graph but not store the info as a usable file.

[Phil_RC_1]

Re: Dayton measurement mic, cal

Every calibration graph I've seen is so flat I don't know why you'd bother creating a cal file; the error is far less than I suspect I can hear (not true on my recent-vintage ECM8000).

Think of it as proof of calibration.

Frank

LOL,,,,, you are probably right.

I just know how people will stress over leveling a 1 or 2 dB bump or dip and I would hate to think the bump (or dip) was actually an artifact of the "calibrated" mic being used.

When I do get my setup running, I hope I can keep a realistic view point about the little things, like you apparently have. (LOL)

[lhwidget]

Re: Dayton measurement mic, cal

Here's what one person found...

http://www.htguide.com/forum/showpos...0&postcount=69

Hey Bill,
That's Herb Singelton (Cross Spectrum Labs), he runs calibration tests and generates cal files for all types of mics. He tested my ECM8000 last October for about $50. Herb's and Kim Girardin's results were almost identical.