See your voice, music or test your audio equipment. See whatever your microphone can hear! This real-time spectrum analyzer (RTA) / audio visualizer features: - 176 high-quality frequency bands [20Hz to 22kHz] - Logarithmic frequency scale to match human perception - Low latency for high responsiveness - High frame rate to see smooth frequency and amplitude movements - Low battery drain due to high performance native code - Fast graphics using OpenGL ES 2.0 - FFT window size 4096 @ 60 frames