For stereo system (e.g. 2ch dirac live, single speaker measurement), use the 0deg file and point the UMIK-1 at the speakers DSP equalization can't change reverberation time. Heavy drapes and carpets will reduce reverberation time, but if you need to go further, then dedicated acoustic treatment may be required. For cheap mics, I recommend the Sonarworks XREF20. You need to find a supplier who will sell them, since they’re meant to only be replacements for the bundled one with the software.

Amarra Symphony: Amarra Symphony with IRC is an advanced music file player for the Apple Mac platform. It includes a feature called "Impulse Response Correction" (IRC), that corrects for acoustical errors at the listening position caused by early reflections from the speaker and listening room. It also provides the ability to tailor the response at the listening position using target curves. The UMIK-1 is an omni-directional USB measurement microphone providing Plug & Play acoustic measurement. From speaker & room acoustic measurement to recording, this microphone provides low noise and accurate results you can rely on. Forget about driver installation, OS compatibility and un-calibrated mics. The Umik-1 is a USB Audio class 1 device automatically recognized by all Operating Systems (Windows/Mac) and Ipad with Camera Connection Kit. It is provided with a unique calibration file based on the serial number to insure an accurate measurement. Combined with our recommended acoustic measurement software, it is the perfect match for a plug&play measurement system. Features

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Note: the distortion components may include distortion from the microphone, so take care in interpreting these results.

At this stage, the ambiMIK-1 should be live and ready to stream audio as you'll notice from the RMS meters in the Audio Mixer section. Make sure to use the ambiMIK-1 gain utility (see user manual) to modify the internal gain for proper signal as you speak/play music... The yellow section from -20~-10dB is what we'd typically recommend. Dirac Live: As a well known reference in the world of room correction with countless high end audio/automotive, we're honored to have Dirac as part of our partners. The UMIK-1 is the recommended microphone by Dirac Research. This plot shows that there are slowly-decaying resonances around 26, 30, 57 and 74 Hz. With this type of graph, you may need to adjust some display parameters on the Controls and Limits popup windows to get the most useful and informative plot. Finally, change the signal generator to generate a pure tone (sine wave). Then go to the FFT display and tap the Play/Pause button. The display will show the tone being generated as a high "spike" as well as any distortion components. (For example, if you play a 1 kHz tone, distortion components will be at 2, 3, and 4 kHz):In this application note, we will show you some basic acoustic analysis techniques that you can apply to measurements of your listening room made with the UMIK-1 and Room EQ Wizard (REW). Why is the graph so uneven? Shouldn't we have a flat frequency response? Mostly, it's because of the room. Room modes (resonances) and reflections in a room act to make a nice flat loudspeaker response into a roller-coaster. NOTE: if you can't see the miniDSP ambiMIK-1 VST from this list, it's most likely because you didn't copy over the VST files in the correct folder as it will search the plugin in the following folders. Make sure to copy the VST files into one of these folders. REW: miniDSP once agains partners with John Mulcahy to develop even greater compatibility for the UMIK-2 inside REW! With the latest REW version (Beta , the UMIK-2 is automatically recognized by the software and prompted for use when REW is started with the microphone plugged in. Recommended values of reverberation time depend on the type of system (e.g. music or home theater), the size of the room, and the type of speaker. However, 300 ms to 500 ms (0.3 to 0.5 seconds) is a commonly recommended range. It can be seen that this room is within this range but towards the high end for a good part of the frequency band.