M/microphone software-related-7.txt 7

It's probable that there's a mic correction curve, fixed windowing, or even a high pass filter loaded when the software knows you're using the bundled mic, but even then the deviations should be far less than 3 dB either way.

Unless the mic itself is faulty or subjected to relatively extreme changes in temperature or humidity. What microphone preamp is being used? Have you checked that it can provide a consistent phantom voltage? Some of the bus-powered interfaces don't achieve 48 Volts unless hooked up to mains power, and some microphones don't play nicely with a lower voltage. Likewise for the impedances, which can limit the maximum SPL which can be measured with a certain combination of mic and preamp.

It could be that there is clipping occurring at the preamp, even at relatively low output levels, if the gain isn't adjusted accordingly. A 'fair' test would be to use the different mics in the same software too.

There's no reason the ARC3 mic shouldn't work with REW, which would give a nice comparison of the relative responses if you can get the mics at the same physical position.

Even a few millimetres out can make quite a big difference in a room, so a nearfield measurement of the drivers would also be a good start. I'd expect to see much more deviation at the very high-frequency region on microphones up to the real expensive types, so a close mic measurement of the tweeter is a nice and easy test.

You also don't have to upset the cats and dogs in the neighbourhood, since you can get away with lower sound levels. Hi - Arc software automatically calibrates when measuring with their own microphone, but if you select the third party option then the load of calibration file does not do anything.

The interface I am using is a Motu M2 and it supplies 48 volt phantom power, the mic doesn't work without it. Just to close the circle - I have downloaded some open source room measurement software called Cavern. You must log in or register to reply here.

Similar threads R. Try these steps to solve the problem: Step 1. If your're using Safari as your web browser you'll need to try a different browser or a different test. Check that your microphone is connected to the correct normally pink socket in your computer. If it's a mic with a USB connector just make sure it is properly connected to the USB socket you will not use the pink microphone in this case.

Check that your microphone is not muted - sometimes the mic has a mute button on it or on the wire that is connected to it. Step 4. Check that the volume on the microphone is not turned all the way down. Tried the steps and it still doesn't work? Check the settings in your operating system:. Mic generally works but not in some programs? You currently do not have access to any training programs. The Latest. Standards and Solutions for the Cannabis and Hemp Industry Learn more about our degree approach for cannabis, from standards development to training, proficiency testing, and certification programs.

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