25 votes - Music - First release: 2014-08-29T16:21:12Z

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Screenshots

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Description - 4+

Audio Spectrum is a real-time FFT spectrum analyzer. It gives you a visual representation of an acoustic signal. It can be used to measure the frequency response of audio equipment or to analyze different sounds (e.g. sounds of musical instruments).

Features 

- Spectrum analyzer 
- SPL Meter (dBFS) 
- Fast real-time response 
- Sampling rates: 44.1kHz, 48kHz, 96kHz* 
- Fast Fourier Transform (FFT) 
- Window sizes: 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536
- Zoom and pan 
- Measure values 
- Audio input can be supplied via the built-in microphone and an external microphone (via the USB camera adapter or through the iPhone/iPad dock connector – Core Audio compliant devices) 
- Sharing charts (through mail, social networks, clipboard) 
- Exporting image charts (png) to the iOS 11 Document Browser (supports iCloud)
- Frequency scale: linear and logarithmic 
- Amplitude scale: linear and logarithmic SPL/RMS (dBFS) 
- SPL meter weighting: dBZ - linear 


*For 96kHz analysis use an external microphone with such capabilities through a USB camera adapter or through the iPhone/iPad dock connector.