Note: In its initial release, FuzzMeasure Pro 4 doesn't support absolute SPL calibration based on the sensitivity figure in the UMIK-1 calibration file. Acoustic measurements will be correct but the absolute SPL readings in FuzzMeasure's Sound Pressure Level frequency response display will not be correct. SPL calibration from the UMIK-1 calibration file is expected in a future revision of FuzzMeasure Pro 4. Select your Playback (output) device ("HDMI" in this example).Select the UMIK-1 as the Record (input) device.Under Playback Channels, select the output channel that you want to send the measurement signal on.The sample rate will automatically change to UMIK-1 sample rate of 48000 (48 kHz) if it was not already. In this example, it is set for HDMI channel 3. Under Record Channels, drop down the selector for channel 1 and select "miniDSP UMIK-1.".If you have selected a stereo output device, select channel 1 for left and channel 2 for right. Note that both input and output operate at the same sample rate, so the output device must be able to operate at 48 khz (almost every device will).īefore proceeding, turn down the volume on your preamp or A/V receiver to a fairly low level. Position the UMIK-1 where you want to take the measurement, and point it towards the speaker being measured.Ĭlick on the + button to view the Measure screen:Īs long as you have turned the volume down, you can click on the Measure button (the red one with the triangle). You should hear a faint sweep from low to high frequencies through the selected speaker. Turn up the system volume until the sweep is loud enough to halt a conversation, but not so loud as to be uncomfortable or to sound distorted. You can now run as many more measurements as you like! If the environment is noisy, set the "Synchronous averages" to a number greater than one in order to average the signal from several sweeps and improve signal to noise ratio. When you are ready, you can save your measurement as a single project file which you can re-open again later.įuzzMeasure provides a lot of analysis tools, accessible from the menus. And to share your graphs online, right-click on any graph and select Export Image File. Building a 2way crossover and Stereo 3/4 way Crossover describe the basics of setting up a loudspeaker with an active crossover.With the audio cable connected to the left ear cup and the port cover in place on the right ear cup, the RØDE NTH-100 have an overall warm, round sound profile.Loudspeaker measurement with UMIK-1 and REW explains the principles of loudspeaker measurement (but you would use FuzzMeasure instead of Room EQ Wizard.).The following app notes contain information that you may find helpful in your journey: Now that you have the ability to run acoustic measurements with FuzzMeasure Pro, you can proceed to optimize and equalize your system. They deliver a touch of extra boom to mixes while the rolled-off treble mellows vocals and lead instruments.
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