How to Measure Your IEM’s Frequency Response Graph: To measure the frequency response of in-ear monitors (IEMs), you will need the following equipment:
- An audio frequency generator (AFG) or a software-based tone generator.
- An audio interface or a sound card with a loopback function.
- A microphone or a calibrated measurement microphone.
- A measurement software such as REW (Room EQ Wizard), ARTA, or FuzzMeasure.
Here are the steps to follow to measure the frequency response of your IEMs:
- Connect the AFG or tone generator to the audio interface or sound card using an appropriate cable (e.g., XLR or 1/4-inch TRS).
- Connect the microphone or calibrated measurement microphone to the audio interface or sound card using an appropriate cable (e.g., XLR or 1/4-inch TRS).
- Set the AFG or tone generator to generate a sine wave sweep from 20 Hz to 20,000 Hz (the typical range of human hearing).
- Set the measurement software to record the output from the microphone or calibrated measurement microphone.
- Insert the IEMs into your ears and play the sine wave sweep through the IEMs.
- Use the measurement software to analyze the recorded data and generate a frequency response graph.
It’s important to note that the accuracy of the measurement will depend on the quality and calibration of the equipment and the environment in which the measurement is taken. It is recommended to use a calibrated microphone and a soundproof room to obtain the most accurate results.