Measured: iPhone 18 Pro microphone frequency response and directivity
Frequency Response I measured the frequency response of the iPhone 18 Pro microphone by positioning a lab-grade reference microphone (PCB model 377C01 connected to model 426A14 phantom-powered preamp) 0.5 mm away from the phone (facing the mic) in our anechoic chamber. The reference mic was connected directly to input 1 of an RME ADI-2 Pro FS R dual channel USB interface (A Mackie phantom power supply was used to power the mic preamp). The iPhone microphone signal was routed directly to a USB-C to 3.5mm headphone adapter using SignalScope’s audio play through function (with measurement mode enabled) and from there to input 2 of the ADI-2 Pro. The response between the 2 microphones was measured with SignalScope’s Dual FFT Analyzer […]
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