Impressive analyzer
If you would like to see the frequencies and amplitude of your environment or music, this free analyzer is an excellent choice.
Free
With Ads
About
Visualize sound in real-time with this audio analysis tool. It measures sound pressure levels and analyzes digital frequency levels, offering a reliable reference for sound checks and adjustments in various environments.
✓Real-time FFT audio spectrum analysis
✓dB SPL sound pressure level meter
✓Digital frequency analyzer (dBFS)
✓Smooth graph motion
✓Dark mode support
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What's New in N
1.1.0
January 8, 2026
What's New in v1.1.0 Real-time Peak Frequency Display - See the dominant frequency at a glance with a live marker on the spectrum graph - Smart peak tracking prevents label flickering in noisy environments - Frequency shown with "≈" symbol to indicate approximation Improved Low-Frequency Accuracy - Enhanced FFT processing now measures down to 20Hz (previously 23Hz) - More accurate energy distribution across frequency bands Visual Refinements - Cleaner spectrum display with uniform floor level - Smoother curves in the low-frequency range
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FAQ
What is N-Signal used for?
N-Signal is used to visualize sound in real-time, measuring sound pressure (dBSPL) and analyzing digital frequency levels (dBFS). It's helpful for adjusting PA systems, testing stage sound, or improving room acoustics.
Is N-Signal a professional-grade instrument?
No, N-Signal is described as a reliable audio reference tool for daily sound checks and education, not a laboratory-grade instrument.
What devices does N-Signal support?
N-Signal is supported on iPhone, iPad, and iPod devices.
What is the age rating for N-Signal?
N-Signal has an age rating of 9+.
How often is N-Signal updated?
The latest version, 1.1.0, was released on January 8, 2026, indicating recent updates for the application.
Does N-Signal have ads?
Yes, N-Signal contains advertisements.
What are the key analysis features of N-Signal?
N-Signal offers real-time audio spectrum with FFT analysis, a dB SPL sound pressure level meter, and a digital frequency analyzer on a dBFS scale.
Can N-Signal be used for live performances?
Yes, the smooth graph motion is optimized for live performance, making it suitable for musicians and engineers during shows.
