Spectre!

Spectre is an iOS audio analysis utility designed to be useful and visually appealing, making use of retina displays. Feature Highlights: FFT(Fast Fourier Transform) Analysis Oscilloscope Customizable Features: Wave Amplitude, Sample/Time Control, Line Width Linear & Logarithmic Wave Forms Pause/Play Controls Zoom in/out on the Waveform Optimized for iPhone 3,4,5 and iOS 7Currently this app takes input from standard input, and external mics. Cross-app sound analysis coming soon Waveform recording also coming soon