Faber Acoustical Blog

SignalScope 2 for iPhone offers upgrades via in-app purchase

ben — Wed, 10 Feb 2010 20:23:24 +0000

Faber Acoustical, LLC announced today that SignalScope 2.0 for iPhone and iPod touch devices is available for immediate download on the iTunes App Store. With version 2, SignalScope users can now enjoy the full features of the Pro version without having to pay full price for SignalScope Pro. Faber Acoustical’s SignalScope 2.0 includes full and -> read more ...

IOScope 1.0.1 lands in the app store

ben — Tue, 09 Feb 2010 23:03:46 +0000

IOScope, version 1.0.1, is now available for download on the iTunes App -> read more ...

How about an iPhone-ProTrack SLM

ben — Fri, 05 Feb 2010 21:43:46 +0000

Alesis finally got around to making shields for securing an iPhone or iPod touch to the ProTrack stereo iPod recording -> read more ...

iPod Touch 3G Headset IO Frequency Response

cole — Wed, 03 Feb 2010 09:41:35 +0000

To add to the previously published results, we decided to measure the frequency response of the iPod Touch 3G. Electroacoustics Toolbox 2.1.7 was used with a MOTU UltraLite mk3 audio interface to measure the frequency response. These measurements include the response of the headset output as well as the -> read more ...

Frequency Response Measurement of Logitec LIC-iREC03P

cole — Fri, 22 Jan 2010 17:03:25 +0000

There haven been a few requests regarding a recently released line input device called the Logitec LIC-iREC03P. To add to the frequency response measurements done previously, we decided to add this new device to the group.

This measurement was made using an iPod Touch 2G. As before, the audio was routed through the phone using SignalScope -> read more ...

SignalScope Pro includes SoundMeter tool

admin — Thu, 24 Dec 2009 19:06:01 +0000

SignalScope Pro's new Meter tool builds on what SoundMeter has to offer and extends it beyond measuring acoustic signal levels to support time-weighted and equivalent levels for any supported signal -> read more ...

Measuring Loudspeaker Impedance with IOScope

ben — Fri, 11 Sep 2009 18:35:35 +0000

Today, a new video, Measuring Loudspeaker Impedance with IOScope, was published on this site, as well as on the Faber Acoustical YouTube channel. The video is both a demonstration of IOScope, as well as a simple tutorial on measuring loudspeaker impedance. Although the video is largely self-explanatory, I thought it would be beneficial to include -> read more ...

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 ...

Measuring Time Delay with Electroacoustics Toolbox

ben — Fri, 12 Jun 2009 21:33:13 +0000

Measuring Time Delay in an Audio System Using Electroacoustics Toolbox

Although Electroacoustics Toolbox is not limited to measuring audio systems, the measurement of audio systems is a common use that offers convenient ways to demonstrate the capabilities of the software. These examples can then be applied to other applications in which the Toolbox’s measurement capabilities may -> read more ...

Measuring Audio Unit Effect Plug-ins With Electroacoustics Toolbox

ben — Fri, 12 Jun 2009 21:20:50 +0000

Measuring Audio Unit Effects Plug-ins Using Electroacoustics Toolbox, Soundflower, and AU Lab

A valuable use of Electroacoustics Toolbox is measuring Audio Unit effects. Measuring Audio Units can be useful to developers of such plug-ins, or to anyone employing Audio Unit effects in their digital audio recording, editing, or reproduction system.

This tutorial requires two free software packages -> read more ...

Audio Interface Frequency Response Measurement with Electroacoustics Toolbox

ben — Fri, 12 Jun 2009 21:02:41 +0000

Measuring the Frequency Response of Your Audio Device

One of the most powerful tools in Electroacoustics Toolbox is the Dual FFT Analyzer, which is capable of measuring system transfer functions and even indicating the quality of the measurement. This tutorial focuses on using the Dual FFT Analyzer to measure the frequency response of the audio device -> read more ...

iPhone Headset Input Options

ben — Fri, 12 Jun 2009 15:32:32 +0000

One of the most obvious ways to get analog signals into an iPhone or 2nd generation iPod touch is through the headset connector. Several options exist for getting acoustic or electric signals into the headset input, which are discussed below. Any of these options will work with the iPhone, iPhone 3G, or iPod touch 2G. -> 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 ...