Audio Hardware Options

There are many options for getting audio into and out of an iOS device. We have listed them by category, showing the pros, cons, and applications for each. Choose the method that best suits your uses. Click on the images for more information about each.

Built-in Mic Headset Mics Generic USB Audio / Dock Interfaces iTestMic2 iAudioInterface2
Always available, no setup, fair accuracy Slight improvement over built-in mic No rolloff, connect external audio devices Calibrated, flat response, convenient, low power, dual-range, 28-120dBA Dual-input, 48V mic pre, line input, line output, battery, charges device. Optical digital output. Full support for all AudioTools modules
Rolloff, limiter, not flat, subject to elements Rolloff, limiter, not flat, may be costly May require power, tricky to calibrate, may not support 48k SR No line input Requires setup and calibration
Quick checks, basic SPL monitoring, feedback finder, polarity tests Same as built-in Studio work, home testing, secondary interface Noise studies, home theater setup, room analysis Type-certified tests, transfer function, line level tests, impedance tests, home theater 5.1 setup, use with Type 1 mics