4.5 out of 5
Dayton Audio UMM-6 USB Measurement Microphone
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Pricing Note
Product Description
Manufacturer Part Number: UMM-6
Dayton Audio's UMM-6 USB measurement microphone matches the level of precision previously offered only by expensive measurement equipment.
Key Features:
Overview:
Dayton Audio UMM-6 USB Measurement Microphone
The Dayton Audio UMM-6 professional-quality USB measurement and recording microphone is designed to work with industry-standard third party recording and measurement software. The rugged construction and compact size make it the perfect companion for audio professionals who must work on-location performing acoustic analysis, monitoring audio levels, or recording. Each UMM-6 is calibrated individually using a laboratory-standard reference microphone, for consistent, repeatable PC measurements that match the level of precision offered previously only by expensive stand-alone microphones and measurement equipment. Works great with the software.
Combining the UMM-6 and Room EQ Wizard provides you with an array of tools that are great for all audio engineers.
Frequency Response is a curve that shows how strongly an audio system reproduces different parts of the frequency range. A frequency response is related to its "impulse response" (the pressure signal that a speaker or sound system would make if it were fed by an extremely short pulse).
The purpose of a Impulse Response is to reveal how the frequency response of a loudspeaker is affected by the room at the location of the microphone.
Harmonic distortion is the unwanted addition of new tones to the original audio signal. These distortion products occur at multiples of the original frequency and are centered on the harmonics of the original. For example, a 1kHz fundamental that has been subjected to harmonic distortion will produce energy at 2kHz (2nd harmonic), 3kHz (3rd harmonic), 4kHz (4th harmonic), and so on.
A waterfall (or CSD) illustrates, on a 3-D graph, how a speakers' energy decays or is radiated over a range of frequencies. Waterfall plots are used by driver and loudspeaker designers for driver selection, to identify resonances or reflections, and to view driver and waveguide behavior.
The EQ window allows you to customize and visualize the effects of filters based on the measurements taken with the UMM-6
The SPL (sound pressure level) meter allows you to measure how loud your source is while the spectrum analyzer shows you the relative SPL of frequency bands.
Use the Oscilloscope to view any sound waveforms. These might include music, your voice, or waveforms played by loudspeakers.
Use the Bass Decay analyzer to measure how bass notes decay in a room. This is a great measurement to understand how the room affects the low end.
A unique serialized calibration .txt file will be available for your UMM-6. Once you receive your microphone, Visit where you will be prompted to enter the serial number found on the base of your calibrated UMM-6. After entering the serial number, your unique calibration .txt file will be available for you to download.
Learn more about OmniMic from seasoned professionals
Specification:
Manuals & Resources:
Dayton Audio's UMM-6 USB measurement microphone matches the level of precision previously offered only by expensive measurement equipment.
Key Features:
- Precision condenser microphone for critical measurement and recording applications
- Connects to your PC or Mac via USB port
- True omnidirectional pattern and calibrated flat frequency response
- Rugged construction with high-quality components
- Compact design; includes sturdy carrying case with foam insert
- Compatible with most industry-standard measurement software
Overview:
Dayton Audio UMM-6 USB Measurement Microphone
The Perfect Companion for Audio Professionals
The Dayton Audio UMM-6 professional-quality USB measurement and recording microphone is designed to work with industry-standard third party recording and measurement software. The rugged construction and compact size make it the perfect companion for audio professionals who must work on-location performing acoustic analysis, monitoring audio levels, or recording. Each UMM-6 is calibrated individually using a laboratory-standard reference microphone, for consistent, repeatable PC measurements that match the level of precision offered previously only by expensive stand-alone microphones and measurement equipment. Works great with the software.
Features
- Precision condenser microphone for critical measurement and recording applications
- Compact, portable, accurate, affordable
- Connects to your PC or Mac via USB port
- Rugged construction with high-quality components
- True omnidirectional pattern and calibrated flat frequency response
- Accurate response from 5 to 20,000 Hz using the unique calibration files
- For professionals and hobbyists--design and tune speaker systems and arrays
- A carrying case with foam insert, 10 ft. USB connection cable, and a mini tripod mic stand are included with the UMM-6.
Measurements
Combining the UMM-6 and Room EQ Wizard provides you with an array of tools that are great for all audio engineers.
- Sound level meter with full integrating functionality including equivalent sound level and sound exposure level; mic/meter and soundcard calibration corrections applied; A, C or Z weighting
- Real Time Analyser with up to 1/48th octave resolution
- Frequency response and distortion measurement using logarithmically swept sine signals for fast, accurate analysis of room acoustics and audio performance
- Two channel oscilloscope with a math channel
- Harmonic and intermodulation distortion measurement including harmonic phase
- RT60 Decay plot using frequency domain analysis to provide decay data at much higher resolution and with narrower octave fractions than is possible with classical RT60 analysis
- Impulse Response delay calculation and adjustment
- Spectral decay plots, waterfalls (Fourier and Burst Decay) and spectrograms (Fourier, Burst Decay and wavelet)
- Signal Generator with 11 different functions
- Clarity and definition parameters C50, C80 and D50 plus centre time Ts
- Impedance measurement including Equivalent Peak Dissipation Resistance (EPDR) plot, component model for inductor and capacitor measurements
- Thiele-Small parameter calculation from sealed volume, added mass or dual added mass impedance measurements
- Automatic identification of peaks in the response, automatic assignment of EQ filters to peaks and optimisation of filter parameters to counter the peaks and track a desired target response
- Room Simulator supporting up to 8 subwoofers
- Room resonance analysis to determine the frequencies and decay times of modal resonances with pole-zero plots of the response and any filters applied
Frequency Response
Frequency Response is a curve that shows how strongly an audio system reproduces different parts of the frequency range. A frequency response is related to its "impulse response" (the pressure signal that a speaker or sound system would make if it were fed by an extremely short pulse).
Impulse Response
The purpose of a Impulse Response is to reveal how the frequency response of a loudspeaker is affected by the room at the location of the microphone.
Harmonic Distortion
Harmonic distortion is the unwanted addition of new tones to the original audio signal. These distortion products occur at multiples of the original frequency and are centered on the harmonics of the original. For example, a 1kHz fundamental that has been subjected to harmonic distortion will produce energy at 2kHz (2nd harmonic), 3kHz (3rd harmonic), 4kHz (4th harmonic), and so on.
Cumulative Spectral Decay
A waterfall (or CSD) illustrates, on a 3-D graph, how a speakers' energy decays or is radiated over a range of frequencies. Waterfall plots are used by driver and loudspeaker designers for driver selection, to identify resonances or reflections, and to view driver and waveguide behavior.
Automatic EQ
The EQ window allows you to customize and visualize the effects of filters based on the measurements taken with the UMM-6
SPL Meter / Spectrum Analyzer
The SPL (sound pressure level) meter allows you to measure how loud your source is while the spectrum analyzer shows you the relative SPL of frequency bands.
Oscilloscope
Use the Oscilloscope to view any sound waveforms. These might include music, your voice, or waveforms played by loudspeakers.
RT60 Analysis
Use the Bass Decay analyzer to measure how bass notes decay in a room. This is a great measurement to understand how the room affects the low end.
Calibrate Your UMM-6
A unique serialized calibration .txt file will be available for your UMM-6. Once you receive your microphone, Visit where you will be prompted to enter the serial number found on the base of your calibrated UMM-6. After entering the serial number, your unique calibration .txt file will be available for you to download.
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Learn more about OmniMic from seasoned professionals
Specification:
Product Details | |
|---|---|
| Brand | Dayton Audio |
| Model | UMM-6 |
| Part Number | 390-808 |
| UPC | 848791000119 |
| Unit of Measure | Each |
| Weight | 2 |
Manuals & Resources:
Attention CA Residents: Prop 65 Warning
WARNING:
This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.
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Customer Reviews
By Jason Nevill
Date: October 03, 2025
Works well with REW.
Rating: 
[4 of 5 Stars!]
[4 of 5 Stars!]
By Jason Elliott
Date: September 20, 2025
Got my entire stereo system installed in the car, was super excited to Tune it with REW. The unit I received lights up Blue, but there is zero input picked up. I have tried multiple PC's, MAC etc. As someone else said, how did this thing get a calibration file if its already dead when it made it to me.
Rating: [4 of 5 Stars!]
[4 of 5 Stars!]
By Tav Saelak
Date: September 19, 2025
This is a pretty good microphone to use for home or vehicle. The only downfall is the size of the microphone and the calibration file from Dayton doesnt work on SMAART unless you alter their calibration file. I setup (FS -20 94db) and compared it to one of my ISemCon microphone with 85db, pink noise, and it came relatively close. Then I created a calibration file myself using my ISemCon as reference. It's definitely worth it, if you are using it for home or car. I wouldn't use this on the field to calibrate a large room, I'd probably use it only for SPLs and to keep RTA running at Front of House. 4/5 score mainly for the size of the microphone. Performance is great
Rating: 
[5 of 5 Stars!]
[5 of 5 Stars!]
By Natanael Calderon
Date: September 06, 2025
Used to tune the audio in my car, I'm very happy with the results. Build quality and materials are also excellent. Seems to be solid aluminium.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By Mark
Date: September 01, 2025
Worked well with pink noise audio adjustment
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By Bermuda Shorts
Date: July 30, 2025
The mic. works just as promised. The software is like a 3-credit course. Be prepared.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]