anechoic chamber – Faber Acoustical Blog

Measured: iPhone 18 Pro microphone frequency response and directivity

October 5, 2026 ben Hardware, iPhone, News

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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Measured: iPhone 17 Pro microphone frequency response and directivity

September 25, 2025 ben Hardware, iOS, iPhone, News

Frequency Response I measured the frequency response of the iPhone 17 Pro microphone by positioning a lab-grade reference microphone (PCB model 378B02) approximately 1mm away from the phone (facing the mic) in our anechoic chamber. The reference mic was connected directly to input 1 of a model 485B39 dual channel USB interface. 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 485B39. The response between the 2 microphones was measured with SignalScope’s Dual FFT Analyzer (on a Mac) with the microphones facing toward and away from a loudspeaker which was generating a swept sine excitation signal. The […]