Audio Analyzer-Audio Analysis Tool for Insights

Audio Analyzer — purpose and high-level design

Audio Analyzer is a specialized automated system for extracting, visualizing, and explaining the acoustic and musical properties of recorded audio. Its design purpose is to bridge the gap between raw audio signals and actionable musical, acoustic, and technical insights. At the lowest level it works with time-domain samples (amplitude vs. time) and derives frequency-domain representations (spectra, spectrograms) and higher-level musical features (tempo, pitch, harmonic content, timbre descriptors). It is built to serve two complementary goals: (1) provide rigorous, reproducible measurements useful to engineers and acousticians, and (2) provide intuitive, musically meaningful analyses useful to musicians, producers and musicologists. Core design principles: • Multi-layer analysis: simultaneous time-domain, frequency-domain, and perceptual/musical feature extraction so that the user sees both raw measurements and musical interpretations (e.g., energy envelope + beat locations + tonic/harmonic summary). • Explainability: every metric has an explanation and an illustrative visualization (e.g., spectrogram with highlighted harmonic tracks), so users can both trust and learn from results. • ReusAudio Analyzer overviewability & automation: analysis outputs are machine-readable (JSON, CSV) and visual (PNG, interactive plots). Batch-processing and parameter presets let users run identical analyses across many files for comparative studies. Examples / scenarios: 1) Mixing engineer checking spectral balance: the engineer uploads a stereo mix; Audio Analyzer returns an overall spectral balance plot (long-term average spectrum), frequency-band RMS numbers (e.g., 20–120 Hz, 120–800 Hz, 800–5kHz, 5k–20kHz), and suggestions where a mix is overly dominated (e.g., "low mids +3.2 dB above target"). The engineer uses that to inform EQ moves and re-render. 2) Musicologist analyzing folk recordings: the user needs pitch contours, harmonic summaries, and rhythmic meter estimates across archival recordings. Audio Analyzer extracts pitch tracks, estimates predominant scale/tonic candidates, and produces beat/tatum maps so the researcher can compare melodies and rhythmic patterns across dozens of files. 3) Room-acoustic diagnostics for a live venue: a venue operator records test sweeps and short musical stimuli; Audio Analyzer extracts impulse-response-derived reverberation times (T20/T30), modal frequencies, and shows how reflections and resonances manifest in the spectrogram and energy-decay curves, enabling targeted acoustic treatment.