Audio Spectrum

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).

Category	Price	Seller	Device
Music	$0.99	Pawel Krzywdzinski	iPhone, iPad, iPod

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.

Reviews

Horizontal orientation...
AppleAntDude

... Only one layout. Can’t flip it over. ?

Matches our calibrated microphones.
Sirhcmarak

I work in a Modal lab. I downloaded this app just for quick measurements on the fly, to verify my test setups. Works great. The FFT matches our $90,000 analyzes and calibrated microphones. I am impressed to say the least. Please update allowing for triggers.

Carl F
CarlWF

This app works awesome. Only one upgrade I would suggest would be the ability to take screen shots and a record feature for data. I would still highly recommend.