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!

Step 1. Download Sound Spectrum Pro Mod (Paid for free) APK file on HappyMod.com.
Step 2. Once it's downloaded, open Downloads, tap on the APK file, and tap Yes when prompted.
Step 3.Sound Spectrum Pro Mod (Paid for free) APK will begin installing on your device. Simple.

Step 1. Download HappyMod APK file on HappyMod.com.
Step 2. Once it's downloaded, open Downloads, tap on the APK file, and tap Yes when prompted.
Step 3.Search Sound Spectrum Pro Mod, click Download.
Step 4: You can download 100% working mods on HappyMod with one click.