Faber Acoustical Blog » iPhone 3GS

iPhone Microphone Frequency Response Comparison

ben — Thu, 25 Jun 2009 15:58:50 +0000

With the advent of sound level meter apps for the iPhone OS (of which SoundMeter was the first) people began to ask, “How flat is the frequency response of the iPhone’s microphone?” Early testing indicated that the built-in microphone of the original iPhone was not a good candidate for sound level measurements, but that the -> read more ...

iPhone Line Input Frequency Response Comparison

ben — Wed, 24 Jun 2009 20:03:57 +0000

Although I already listed some options for getting line-level audio into an iPhone or iPod touch, that list didn’t include much information that would suggest which option would be best. One important metric that people frequency ask about is frequency response. Well, I finally have some frequency response comparisons available to help answer that question.

These -> read more ...

iPhone Dock and Headset IO Frequency Response

ben — Fri, 19 Jun 2009 23:30:20 +0000

People often ask about the frequency response of iPhone and iPod touch audio inputs. To shed some light on the issue, I made some frequency response measurements of the iPhone, iPhone 3G, iPhone 3GS, and iPod touch 2G with Electroacoustics Toolbox and an Edirol FA-101 audio interface. These measurements are broken into two groups, one -> read more ...

Dock Connector Audio I/O

ben — Wed, 10 Jun 2009 22:51:44 +0000

Several options exist for getting audio signal into and out of iPhone OS devices via the dock connector. However, not all accessories are compatible with all iPhone OS devices. So, we put together this compatibility chart, based on our own tests with SignalScope/Pro and SignalSuite.

Dock Audio Accessory Compatibility

These devices were chosen for their ability to -> read more ...

iPhone OS Audio Routes

ben — Tue, 19 May 2009 17:23:58 +0000

Getting audio signals into and out of an iPhone OS device can sometimes be a bit tricky. The information presented below outlines the available means for getting audio signals into and out of each iPhone OS device. Available Input Routes ... Available Output -> read more ...