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You can always use your Umik 1 to calibrate the ECM8000. Not very hard to do.
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UMIK-1 vs Behringer ECM PRO + Focusrite Scarlett Solo 3Gen...
- Thread Starter
- #22
Okay.... So I had some fun with REW and UMIK-1 today. Shown above are 9 measurements of the same channel (pssngr TW) using acoustic timing reference.
The drifting is within ~0,027 ms range... I don't really know if it matters or not... I'd assume yes, especially at home. Maybe someone could explain more?
Should have my Scarlett+ECM8000 combo next week. Will post some results...
Let me know if I should check someting more or do something different
DVDdoug
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I don't know what you're comparing or what's "drifting" but I'm seeing 77.6 us = 0.027 meters (27mm) or 1.05 inches at the speed of sound. The microphone (or microphone element) might be in a slightly different position?
It doesn't seem significant when you consider the varying location of your ears and the distance between your ears.
Keith_W
Major Contributor
If you plan to use Acourate or Audiolense, you are much better off with an XLR mic instead of a USB mic. While Acourate/Audiolense can work with USB mics, there are serious issues. Audiolense's forums have many complaints from people who get odd results, and the culprit is usually a USB mic. Acourate doesn't let you use a USB mic at all unless you trick it by using software cables.
The other issue (if you use Windows) is that USB mics at best can use WASAPI Exclusive. No ASIO. And WASAPI Exclusive has variable latency: buffer sizes, audio drivers, hardware capabilities, and Windows settings can all affect performance. ASIO OTOH has very low latency and is virtually immune to variable latency.
That reminds me, at some point I need to test the latency of WASAPI Exclusive and compare it to ASIO.
The other issue (if you use Windows) is that USB mics at best can use WASAPI Exclusive. No ASIO. And WASAPI Exclusive has variable latency: buffer sizes, audio drivers, hardware capabilities, and Windows settings can all affect performance. ASIO OTOH has very low latency and is virtually immune to variable latency.
That reminds me, at some point I need to test the latency of WASAPI Exclusive and compare it to ASIO.
- Thread Starter
- #25
Yeah you right... My bad... Sorry I'm a REW Noobie
What I wanted to say (and hoped it will be visible on the graph - but it wasn't) is that every measurement I take (mic in holder - measuremenets one after another - no chance for any physical movement of equipment) I get different value in field "Delay". Here:
And the difference can be as big as 0,06ms
Is this a lot or not?
pogo
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And what do Dirac Live's algorithms with the deviations, for example?
I just got a Dayton UMM-6 with calibration file. It is set up properly in REW.
I ran some sweeps to compare it to my 2018 vintage Behringer ECM 8000, and I'm seeing a huge difference. From the measurements, my guess is that the Behringer is the more accurate mic. Measured by the Dayton, my Dutch & Dutch 8Cs seem to be broken.
I ran some sweeps to compare it to my 2018 vintage Behringer ECM 8000, and I'm seeing a huge difference. From the measurements, my guess is that the Behringer is the more accurate mic. Measured by the Dayton, my Dutch & Dutch 8Cs seem to be broken.
a4eaudio
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Just ran across this thread.
Neither the Behringer ECM8000 nor the ECMPRO come with a calibration file. As some of the charts show on the first page of the thread, the ECM8000 is known to have a large variation. I posted a comparison of the ECMPRO (uncalibrated) compared to an Earthworks M23R in the diyaudio thread linked in post #12 above. This is a sample of one, so take it for what it is worth, but the results for this particular mic is quite good.
I compared the Earthworks, Behringer ECM8000 and Dayton EMM-6 HERE. I wouldn't trust either without a calibration file and the Dayton's don't have a good reputation for having a very accurate calibration file, although the one I was testing was quite old and there is chance they are better now.
Best option if you want the timing advantage of an XLR mic and loopback system...buy either of the Behringers (ECM8000 is $20 from Sweetwater if you are in the US) and create your own calibration file from your UMIK-1. (Blumlein 88 states this in post #21 also.)
Neither the Behringer ECM8000 nor the ECMPRO come with a calibration file. As some of the charts show on the first page of the thread, the ECM8000 is known to have a large variation. I posted a comparison of the ECMPRO (uncalibrated) compared to an Earthworks M23R in the diyaudio thread linked in post #12 above. This is a sample of one, so take it for what it is worth, but the results for this particular mic is quite good.
I compared the Earthworks, Behringer ECM8000 and Dayton EMM-6 HERE. I wouldn't trust either without a calibration file and the Dayton's don't have a good reputation for having a very accurate calibration file, although the one I was testing was quite old and there is chance they are better now.
Best option if you want the timing advantage of an XLR mic and loopback system...buy either of the Behringers (ECM8000 is $20 from Sweetwater if you are in the US) and create your own calibration file from your UMIK-1. (Blumlein 88 states this in post #21 also.)
The UMIK 1 recently became rather pricey in the United States. (MiniDSP was charging around $300 after tariff surcharges.)