What problem does it solve? Analyzing audio content visually requires specialized tooling; this Skill turns audio files into spectrograms and multi-panel feature visualizations (mel, chroma, MFCC, and more) with a single CLI command, making audio characteristics inspectable as images. ## Core Features & Use Cases - Spectrogram Generation: Render standard or mel-scaled spectrograms from WAV and MP3 files, with optional ffmpeg support for other formats. - Multi-Panel Feature Grids: Combine up to nine visualization types (chroma, HPSS, self-similarity, loudness, tempogram, MFCC, flux) into a single image. - Flexible Output Control: Slice audio by time range, adjust FFT window/hop, frequency range, color palettes, dimensions, and PNG/JPG output. - Use Case: Compare two synthesized audio outputs by generating side-by-side mel spectrograms, then inspect the images with a vision model to verify frequency content differences. ## Quick Start Generate a mel spectrogram from my track.mp3 file and save it as a PNG image.