SignalScope 3.0 for iOS Goes Universal

Following in the footsteps of SignalScope Pro, SignalScope has now been enhanced for iPad users with native iPad support. SignalScope’s FFT analyzer and oscilloscope now support drawing on an external screen with a compatible video output adapter. The original iPad supports external screen resolutions up to 720p and the iPad 2 supports resolutions as high as 1080p and even 1920×1200 with compatible hardware. Video output support is not supported on iPhone or iPod touch. SignalScope can be upgraded, via in-app purchase, to the full functionality of SignalScope Pro. Alternatively, additional tool upgrades, such as the octave-band spectrum analyzer or signal generator, may be purchased individually. Like the Pro version, SignalScope now supports PDF file creation, in-app file previews, iTunes File Sharing, […]

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iPod touch 4 limited like iPhone 4

While built-in cameras and a microphone are exciting additions to the newest iPod touch, the same I/O limitations that plague the iPhone 4 as an audio/acoustics analyzer platform remain. In other words, the existing audio inputs on the 4th generation iPod touch suffer from significant low-frequency roll-off, just as the other iPhone and iPod touch models do. Also, existing analog line-level input accessories that worked with earlier iPod touch and iPhone devices (before the iPhone 4) are not compatible with the latest iPod touch. In spite of the present limitations, however, I’m sure it’s only a matter of time before suitable input options become available for the latest and greatest iOS devices…

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SignalScope on iPad?

The question frequently comes up, whether the existing Faber iPhone apps, SignalScope/Pro, SoundMeter, SignalSuite, etc will work on the iPad. The answer is, yes, they all work on the iPad. They aren’t universal apps, which means that they either appear in a small window in the middle of the iPad screen, or they can be zoomed to (mostly) fill the large screen. Even though the graphics are not as crisp when the apps are zoomed, these apps still offer a good user experience on the iPad.

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iPod Touch 3G Headset IO Frequency Response

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 headset input. The audio was routed through the iPod Touch using SignalScope Pro, and the measurements were made on a 3rd generation 32 GB iPod Touch. With each new iteration of the iPhone, the low-end roll off of the headset input has been steeper and steeper.  The iPod Touch seems to be following a similar trend. The iPod Touch 2G had a 3 dB frequency around 30 Hz while the iPod […]

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