miniDSP UMIK-1 USB Measurement Calibrated Microphone User Manual

1. Introduction

The miniDSP UMIK-1 is a unique, omni-directional, USB measurement microphone. It provides a plug-and-play solution for acoustic measurement tasks, offering a calibrated and reliable tool for various audio analysis applications. Each UMIK-1 comes with its own unique calibration file, ensuring accurate and consistent measurements.

This manual provides detailed instructions for setting up, operating, and maintaining your UMIK-1 microphone, along with troubleshooting tips and product specifications.

2. Box Contents

Upon opening the packaging, please verify that all the following items are present:

• miniDSP UMIK-1 USB Measurement Microphone
• Mini Tripod Stand
• USB Cable
• Windscreen
• Unique Calibration File (downloadable online using the microphone's serial number)

Image: The miniDSP UMIK-1 microphone, USB cable, and tripod stand are shown alongside the product's white packaging box. This image displays the primary components included in the package.

Image: The miniDSP UMIK-1 microphone, USB cable, and tripod stand are neatly arranged within the product's internal packaging, demonstrating how the items are secured for transport.

3. Setup

3.1. Driver Installation

The UMIK-1 is designed for plug-and-play operation and typically does not require specific driver installation for Windows, Mac, Linux, and iDevices. It functions as a standard USB Audio Class 1 device.

3.2. Connecting the Microphone

1. Attach the Tripod: Screw the UMIK-1 microphone onto the included mini tripod stand. Ensure it is securely fastened.
2. Connect USB Cable: Plug one end of the supplied USB cable into the UMIK-1 microphone and the other end into an available USB port on your computer or iDevice (using a Camera Connection Kit for iDevices).
3. Operating System Recognition: Your operating system should automatically detect the UMIK-1 as a USB audio input device.

Image: A close-up view of the miniDSP UMIK-1 microphone, showing its connection to a USB cable and its placement on the mini tripod stand, illustrating the physical setup.

3.3. Downloading the Calibration File

Each UMIK-1 microphone is individually calibrated. To ensure accurate measurements, you must download the specific calibration file for your unit:

• Locate the serial number on the body of your UMIK-1 microphone.
• Visit the official miniDSP website's UMIK-1 calibration download page.
• Enter your serial number to download the corresponding calibration file (.txt format).
• Save this file to a readily accessible location on your computer. This file will be loaded into your acoustic measurement software.

4. Operating the UMIK-1

4.1. Software Compatibility

The UMIK-1 is compatible with a wide range of acoustic measurement software, including but not limited to:

• Dirac Live
• REW (Room EQ Wizard)
• Smaart
• Other audio analysis applications that support standard USB audio input and external calibration files.

4.2. Basic Measurement Procedure (General)

While specific steps vary by software, the general procedure for using the UMIK-1 for acoustic measurements involves:

1. Select UMIK-1 as Input: In your chosen acoustic measurement software, select the UMIK-1 as the audio input device. It will typically appear as "UMIK-1" or "USB Audio Device".
2. Load Calibration File: Load the downloaded calibration file (.txt) into the software. This corrects the microphone's frequency response for accurate readings.
3. Position Microphone: Place the UMIK-1 at the desired measurement position. For room acoustic measurements, this is often the primary listening position.
4. Perform Measurement: Follow the software's instructions to generate test signals and capture acoustic data.
5. Analyze Results: Use the software's tools to analyze the collected data, such as frequency response, impulse response, or SPL levels.

Refer to your specific software's documentation for detailed instructions on its operation with the UMIK-1.

5. Maintenance

To ensure the longevity and accuracy of your UMIK-1 microphone, follow these maintenance guidelines:

• Storage: Store the microphone in its padded transport case when not in use to protect it from physical damage and dust.
• Cleaning: Use a soft, dry cloth to clean the microphone body. Do not use liquid cleaners or solvents, as these can damage the electronics or microphone capsule.
• Handling: Handle the microphone with care. Avoid dropping it or subjecting it to strong impacts, which can affect its calibration and performance.
• Environmental Conditions: Avoid exposing the microphone to extreme temperatures, high humidity, or direct sunlight for extended periods.

6. Troubleshooting

6.1. Microphone Not Detected

• Check USB Connection: Ensure the USB cable is securely connected to both the UMIK-1 and your computer/device. Try a different USB port.
• Try Different Cable: Test with another USB cable to rule out a faulty cable.
• Restart Device: Restart your computer or iDevice.
• Check Device Manager (Windows) / System Information (Mac): Verify that the UMIK-1 is listed as an audio device.

6.2. No Audio Input / Low Level

• Software Input Selection: Confirm that the UMIK-1 is selected as the input device within your measurement software and operating system sound settings.
• Input Level: Check the input level settings in your operating system and measurement software. Ensure it is not muted or set too low.
• Calibration File: Ensure the correct calibration file is loaded in your software. While not directly affecting input level, an incorrect file can lead to inaccurate readings.

6.3. Inaccurate Measurements

• Calibration File: Double-check that you have downloaded and loaded the correct calibration file for your specific UMIK-1 serial number.
• Microphone Placement: Ensure the microphone is positioned correctly according to your measurement software's recommendations.
• Environmental Factors: Minimize background noise and ensure stable environmental conditions during measurement.

7. Specifications

8. Warranty and Support

8.1. Warranty Information

miniDSP products typically come with a standard manufacturer's warranty. For specific warranty terms and duration, please refer to the warranty card included with your product or visit the official miniDSP website. Keep your proof of purchase for warranty claims.

8.2. Technical Support

For technical assistance, software compatibility issues, or further questions regarding your UMIK-1 microphone, please visit the miniDSP support portal or contact their customer service directly. Online forums and knowledge bases are also available for community support and common queries.

Official Website: www.minidsp.com

Support Page: Refer to the miniDSP website for the most current support contact information and resources.