Share Your Microphone Calibration Files to Help Us Improve Room Correction

[guy48065]

Dayton IMM-6
file type: txt
room type: Wooden building (?)
distance: 2m

@ "The Team": Explain the request for room information & such. This is unknown in the OEM cal file--as is the reference mic, procedure used, or any other useful info normally provided with a "calibration". The file submited here looks like an OEM dataset--except it's MUCH flatter than normal.

 

[LesE]

Dayton Audio iMM-6C

.TXT file format

Room 1: Irregular shape, roughly 12'X20' Measurement Distance = 13'

Room 2: Rectangular shape, 11'X16' Measurement Distance = 9'

 

[Burnside]

@ "The Team": Explain the request for room information & such. This is unknown in the OEM cal file--as is the reference mic, procedure used, or any other useful info normally provided with a "calibration". The file submited here looks like an OEM dataset--except it's MUCH flatter than normal.

Does it matter why they requested it beyond what they said I.e to “enhance audio processing algorithms”?

 

[canard]

I was rereading the first message...
we are only waiting for cal type files... so dayton style, umik usb, see other rare existing options adapted to this situation...
so we already have what we need..and I have imagined for a long time
(http://www.micwaudio.com/detail.php?id=345 ?)

It is the 0/90 degree approach that can be reflected

but this thread is really a joke
and the autogain ( since 2022, and even more essential since the arrival of peq mode ) ?

 

[slartibartfast]

Does it matter why they requested it beyond what they said I.e to “enhance audio processing algorithms”?

It does seem strange though. The mic has the same calibration file in any room and for any listening position.

 

[Burnside]

It does seem strange though. The mic has the same calibration file in any room and for any listening position.

I don’t think it’s necessarily related to the calibration files. Maybe they’re considering other means of room correction especially where users don’t have access to a calibrated mic - for example, my Linn amp’s “space optimisation” relies on room dimensions, speaker and listening position, room construction materials etc and eschews the new for a mic completely.

 

[Wiimer]

I don’t think it’s necessarily related to the calibration files. Maybe they’re considering other means of room correction especially where users don’t have access to a calibrated mic - for example, my Linn amp’s “space optimisation” relies on room dimensions, speaker and listening position, room construction materials etc and eschews the new for a mic completely.

My audio room is only 2.7m * 3.6m wide and I don't want to disclose it here.

 

[slartibartfast]

I don’t think it’s necessarily related to the calibration files. Maybe they’re considering other means of room correction especially where users don’t have access to a calibrated mic - for example, my Linn amp’s “space optimisation” relies on room dimensions, speaker and listening position, room construction materials etc and eschews the new for a mic completely.

They talk about "context" for the cal file (room type, distance) as if we are producing our own calibration files at a particular position in our room. Bear in mind that the new automatic timing function for subwoofers doesn't actually optimise the phase relationship between the speakers and the subwoofer at the crossover frequency. We don't want another disappointment like that.

 

[guy48065]

The request is very vaguely worded. I would think, from a developer's standpoint, that to add the ability to import the cal file and subtract it's quantified errors from the room correction measurement they would only need to see what RANGE of corrections... and maybe how many datapoints... they need to accommodate.

Asking about the room (to create the cal file? to create the RC data?) is confusing to me.

 

[s3igell]

Perhaps "the Team" is collecting "loosely related" data for multiple lines of inquiry. And simply wished to put a "combined" request out to a group who indicate that they actually care (and use) at least one of the functions under investigation.
It is easier to post a single request than to post two which are likely to produce a lot of overlapping responses.

 

[slartibartfast]

Perhaps "the Team" is collecting "loosely related" data for multiple lines of inquiry. And simply wished to put a "combined" request out to a group who indicate that they actually care (and use) at least one of the functions under investigation.
It is easier to post a single request than to post two which are likely to produce a lot of overlapping responses.

Well they ask for "measurement conditions". If they mean measurement conditions for the manufacturer's calibration file then I'm sorry I haven't a clue

 

[Joseespona]

Thats what I dont understand. We are asked for room type etc when the calibration files are produced by the manufacturer so you dont need that info. That info would have a value if you could export a file from the WiiM app after doing the sweep with the mic plugged in

 

[canard]

seems especially not to know how the measurement conditions and qualification, norme, of microphones of this type are achieved
"Additionally, please provide information about the file format, microphone model, measurement conditions (e.g., room type, distance), and any other relevant details."

the options being limited..it is up to their engineers to discuss with dayton or minidsp... will be simple

 

[Smartplug]

They mention before that wiim remote can be use as mic. Is this device maybe better?

 

[guy48065]

They mention before that wiim remote can be use as mic. Is this device maybe better?

That would be great & could clear up issues with needing to import cal files of different formats/sizes/ranges BUT it's highly unlikely the mic currently in the remotes is of better quality than these inexpensive USB mics, or the one in your phone.
The need for correction would still exist unless WiiM can source a cheap mic where ALL have the same curve.

 

[guy48065]

I wonder if there's enough desire for accurate RC from the general consumer to warrant including a measurement mic with each unit. Calibrated and serial number-matched to each streamer.

 

[QuarryHunslet]

I wonder if there's enough desire for accurate RC from the general consumer to warrant including a measurement mic with each unit. Calibrated and serial number-matched to each streamer.

I would not think that there would be, I know that I certainly wouldn’t be interested.

 

[Joseespona]

Maybe manufacturing a premium remote with a room correction capable mic? It would be cool to have a remote that matches better with the ultra. Although I guess most of the users dissmiss the remote and use the app instead

 

[Francesco58]

iMM-6C

 

[guy48065]

But was it calibrated on the factory floor? In a small test room off to the side? In an anechoic chamber?