Friday, March 11, 2011

A real time spectrum analyzer iPhone app for audio

Sinusoid Pty Ltd today is pleased to announce the release of AKLite 1.0 for the iPhone and iPad, a real time spectrum analyzer for audio. It is a lite version of the Spectrum part of Audio Kit iPhone App. FFT (Fast Fourier Transform) is used to calculate the frequencies in the Spectrum Analyzer and these are displayed in real time. The frequency is displayed in either logarithmic or linear scale and this is selectable.

The area under the line trace can be optionally filled or left blank. The FFT length used in AKLite is 2048, giving good resolution of frequencies. Interpolation gives resolution to within 1Hz. A Bartlett FFT window type is used for calculations and there are 3 FFT windows used. The strongest frequency is displayed above the peak.

The full version, Audio Kit is a collection of four tools which are essential for those working in audio, sound and music; A real time Spectrum Analyzer, a Scope to display waveforms, an SPL Meter, and a Signal Generator producing sine waves, white noise and pink noise. Users can view a real time spectrum of audio, identifying peak frequencies, as well as view the actual waveform of the audio signal and much more.
Device Requirements:
* iPhone, iPod touch 2G, 3G 4G iPod touch, and iPad
* Requires iOS 3.0 or later
* 0.8 MB

Pricing and Availability:
AKLite 1.0 is free and available worldwide exclusively through the App Store in the Music category. AKLite – A low cost RTA for those working in audio, sound and music.

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