Audio Spectrum is a powerful and versatile real-time FFT spectrum analyzer designed for iPhone users. With this app, users can visualize and analyze acoustic signals, making it a valuable tool for audio equipment testing and sound analysis.

Featuring a spectrum analyzer and SPL meter, Audio Spectrum provides users with a comprehensive analysis of audio signals. The app offers fast real-time response, allowing users to view live updates of the frequency response of audio equipment or the characteristics of different sounds, such as musical instruments.

Audio Spectrum supports multiple sampling rates, including 44.1kHz, 48kHz, and 96kHz (external microphone required for 96kHz analysis). Users can choose from various window sizes, ranging from 256 to 65536, to customize the analysis according to their needs.

In addition to the detailed analysis, Audio Spectrum offers zoom and pan functionality, allowing users to focus on specific frequency ranges or zoom in to examine specific details. The app also provides measurement values, making it easy to quantify and compare different audio signals.

Sharing and exporting charts is made simple with Audio Spectrum. Users can easily share charts through email or social networks, or export image charts (in png format) to the iOS 11 Document Browser, including support for iCloud.

With a flexible frequency scale (linear and logarithmic) and amplitude scale (linear and logarithmic SPL/RMS), Audio Spectrum caters to the needs of both beginners and professionals in the audio industry. The app also offers SPL meter weighting options, including dBZ - linear, ensuring accurate and reliable measurements.

Whether you are a sound engineer, musician, or simply interested in analyzing audio signals, Audio Spectrum is a comprehensive and user-friendly tool that provides real-time FFT spectrum analysis on your iPhone.