miniDSP UMIK-1 Omni-Directional USB Measurement Calibrated Microphone

Product Information

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. Recall that we applied smoothing to the graph. An in-room measurement has a lot of reflections that create peaks and dips in the frequency response. Above 250 Hz or so, much of this is not relevant to what we hear, so for full-range measurements, 1/3 or 1/6th octave smoothing is generally used. For graphs limited to the low frequency range (up to say 300 Hz), use 1/24, 1/48 or no smoothing. Umik-1 on Ipad: Our technical team has been testing the UMIK-1 along with few ipad apps. A plug&play setup for a full featured measurement + SPL meter running from the Ipad. Next stage is to configure the ASIO source. We'll select the miniDSP ASIO driver(previously installed) and follow the below example configuration.

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. 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):For multichannel system (E.g. 5.1/7.1) or a surround application where multiple speakers are spreadout around the room, use the 90deg file and point the UMIK-2 at the ceiling. Please note that OBS is third-party software. miniDSP is not able to directly provide support for this software. For questions or issues specifically related to OBS, please refer to the OBS Forum and its online tutorials. REW: miniDSP worked along with John Mulcahy to develop even greater compatibility for the UMIK-1 inside REW! With the latest beta release of REW (v5.01 and up), the UMIK-1 is automatically recognized by the software and prompted for use when REW is started with the microphone plugged in. Special features such as calibrated SPL measurement enabled under free Room EQ Wizard (REW) software

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. FeaturesPlease note: miniDSP cannot provide support for third-party applications or hardware. This app note shows you how to set up the miniDSP UMIK-1 to use with SignalScope Pro but other functions of the Apple iPad or the SignalScope Pro app are beyond the scope of miniDSP support. 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. For OBS to be able to support the 4 ch USB audio interface from the ambiMIK-1, there are few settings to be configured first. To make sure the below steps are running smooth, make sure to connect the ambiMIK-1 to your PC/Mac before going further. 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.