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 7
Currently this app takes input from standard input, and external mics. Cross-app sound analysis coming soon! Waveform recording also coming soon!