***** "As a former IEEE Technical Committee Chair for Signal Processing, I find this app amazingly flexible and useful. Works very well with its proper designed-in control selections." - Roblake...
>> PLEASE NOTE: This app uses the iPhone's microphone to visualize music and surrounding sounds! It does NOT import iPod music library! Currently Bluetooth and AirPlay are NOT supported....
★★★★★ "I use this for analog, and audio measurements. Attach an Apple USB adapter and a $40 stereo A-D converter available online, and my iPad is like a $300 O'Scope." -thymeout-