Sound Spectrum Pro

RTA (Real-Time Analyzer), FFT (amplitude display driven by Fast Fourier Transform), calibration, signal generators...

Everything is included, bundled in a friendly interface with many on-screen controls and smooth real-time display.

== Features ==

+ FFT (amplitude) and RTA (octave, 1/3 octave, ... down to 1/24 octave).

+ Sound pressure level dBA, dBC, and dBZ.

+ Noise Criterion and Noise Rating in octave RTA.

+ Equivalent continuous sound level LAeq, LCeq, LZeq, LAeq15, LAeq60.

+ Impulse response and RT60 measurement.

+ Large font SPL + LEQ meter.

+ THD+N Total Harmonic Distortion plus Noise

+ Lightning-fast FFT with size from 16k to 1M, providing frequency resolution of 0.05Hz directly and 0.01Hz with downsampling.

+ Sample rate of 48kHz, if supported by the device.

+ Many window functions to choose from.

+ Logarithmic or linear frequency axis.

+ Peak and valley hold with adjustable decay.

+ Highest peak display

+ Adjustable exponential smoothing.

+ Easy pan (drag) and zoom (pinch).

+ Measurement cursors, also used for setting frequency of signal generators.

+ File load/save and full calibration capability, for accurate SPL readings.

+ Signal generators: tone, white noise, white sweep, pink noise, pink sweep, pink octave, pink 1/3 octave.

+ Synchronous measurement mode (including frequency sweep) for clean and fast spectrum analysis.

+ Loopback mode to try out signal generators and window functions.

+ Sharing and printing of screenshots.

+ No ads!