iPhone Apps - SignalScope

SignalScope

02/11/2010 Article Added: SignalScope 2 for iPhone offe...
12/23/2009 Article Added: SignalScope Pro for iPhone no...
10/11/2009 App updated to version 1.3 (iPhone OS 3.0 Tested)

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$24.99

About

Release Date: 10/07/2009 Size: 0.6 MB Popular Rank #: 795 Languages: English Requirements: Compatible with iPhone and iPod touch Requires iPhone OS 2.2.1 or later URL:

SignalScope turns your iPhone or iPod touch into a powerful real-time spectrum analyzer and oscilloscope. Easily measure audible frequencies in SignalScope’s Spectrum tab. Capture a balloon pop with single-shot triggering in the Waveform tab. “Touch” your data with highly interactive, multi-touch enabled analyzer displays.

NOTE: The frequency response of the iPhone's built-in and headset microphones is quite flat. However, the built-in microphone of the original iPhone seems to be routed through a codec, which limits the sample rate to 8 kHz and significantly affects the frequency response. The iPhone 3G rolls off the built-in and headset mic signals below 100 Hz.

NOTE: iPod touch devices require additional external hardware to get audio signals into SignalScope.

For iPhone/iPod touch audio I/O compatibility and frequency response measurements, visit http://blog.FaberAcoustical.com.

Check out video demos at www.FaberAcoustical.com.

FEATURES
- Analyze signals coming from the iPhone's built-in or headset microphone, or from the built-in accelerometer.
- Sample the built-in or headset microphone at 48 kHz, and the accelerometer at 100 Hz (the built-in microphone sample rate is limited to 8 kHz on first-generation iPhones).
- Zoom in or out on spectrum and waveform displays with two-finger expand/pinch gestures, even while the analyzer is running.
- Pan vertically or horizontally in zoomed displays with two-finger scrolling.
- Pinpoint individual sample values or frequencies with a cursor.
- Save high-resolution spectrum or waveform display images to the iPhone's Camera Roll photo album.

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If you're looking for a whole and 1/3-octave spectrum analyzer (traditional RTA), engineering units, input calibration, a built-in signal generator, and data acquisition (saving acquired time and/or frequency data to text or .mat files), check out the new SignalScope Pro for iPhone and iPod touch.
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