My most recent and impressive of discoveries regarding applications for this handy little device is SignalScope and was written by a company called Faber Acoustical. I have purchased a few other apps from this company's impressive line of audio applications for the iPhone/iPod Touch and have been pleasantly surprised with the professional result. I had waited on purchasing SignalScope as it was most expensive (at 24.99), but since I recently came into a $25.00 gift card for the iTunes store, I decided to give it a try.
Once the download completed I immediately inserted my Macally iVoice III into the dock connector for an attempt at a direct stereo input to SignalSuite. Originally the test was a failure. My last ditch effort was to connect the iVoice into the dock connector while the iPod was turned off and turning it back on. Starting SignalSuite one last time was a success. I immediately received a great signal from my computer (where I had a signal generator creating a sine wave on the left channel at 440 hz and square wave on the right channel at 441 hz.).
Below are some photos that were taken from the capture function in SignalSuite (an excellent feature) and exported through iPhoto and a video that I took with my camera.
The oscilloscope function where the red (left) channel is the sine wave and the green (right) channel the square wave:
The spectrum function using the same parameters as above:
And a little video:
This has quickly become my favorite app for the iPhone/iPod Touch and I will definitely be using it regularly in my audio adventures.
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