Tunelabs

Tunelabs is a free professional-grade real-time audio analyzer designed for audio installers, tuners, and enthusiasts who want accurate frequency analysis without the cost. REAL-TIME ANALYZER (RTA) • 6, 8, 16, and 31-band octave analysis (IEC 61260 standard) • Peak hold — retains the highest level per band with slow decay • Smoothing — exponential smoothing for stable, jitter-free readings • Supports built-in, wired 3.5mm, and USB microphones MICROPHONE CALIBRATION • Import .cal and .csv calibration files for corrected measurements • Per-profile noise floor calibration to reduce background noise • Multiple mic profiles — switch between microphones easily CLEAN & ADAPTIVE UI • Light and dark theme support — follows your device system setting • Landscape and portrait layouts • Minimal, distraction-free interface built for real-world use POWERED BY SARANULABS Tunelabs is built on the same measurement engine as Tunelabs Pro — the full professional toolkit used by car audio installers for crossover analysis, time alignment, SPL metering, phase analysis, and spectrogram diagnostics. UPGRADE TO TUNELABS PRO Unlock the complete toolkit: • SPL Meter with A/C weighting (IEC 61672) • Time Alignment Calculator with IR auto-measurement • Crossover Analysis with automated DSP recommendations • Phase Analyzer with cancellation zone detection • Spectrogram with auto-diagnostic engine • Pink Noise, Sine Wave, and Sine Sweep generators • Audio Engine configuration (FFT size, sample rate) • EQ genre presets and frequency zoom Measurement algorithms aligned with IEC 61260 and IEC 61672 standards.