# Audio Analysis & Visualization Tools

Generate spectrograms and waveforms, analyze spectrums in 3D, check stereo phase with goniometers and vectorscopes, and run QC diagnostics on audio — free and browser-based.

> Canonical page: https://elysiatools.com/en/hubs/audio-analysis-and-visualization-tools

- **Category:** audio analysis and visualization

- **Keywords:** spectrogram generator, audio spectrogram, waveform generator, audio waveform, waveform video, spectrum analyzer, 3d spectrum, frequency analyzer, goniometer, vectorscope, phase analyzer, stereo phase, audio dropout detection, silence detection, audio duration check, caption sync check, audio QC

## Overview

See what is actually inside your audio files. Render a spectrogram or waveform as an image or animated video, explore the spectrum in 3D, verify stereo imaging with a goniometer and vectorscope, then run diagnostics for dropouts, dead air, duration errors, and caption drift — everything processed locally in your browser.

## Tools

- Audio Spectrogram Generator: Generate a spectrogram image from an audio file or a video audio track
- Audio to Spectrogram Video: Create a video from audio with a spectrogram visualization
- Audio Waveform Generator: Generate a waveform image from an audio file
- Audio to Waveform Video: Create a video from audio with a waveform visualization
- 3D Spectrum Analyzer: Audio spectrum analyzer with 3D isometric visualization
- Audio Visualizer Player: Play audio files with real-time frequency visualization
- Audio Frequency Analyzer: Real-time audio frequency spectrum analyzer with detailed frequency band analysis
- Audio Goniometer: Render a polar stereo image to visualize width and panning
- Audio Vectorscope: Visualize stereo audio with a Lissajous vectorscope display
- Audio Phase Analyzer: Real-time stereo phase correlation analyzer for mono compatibility checking
- Audio Dropout Detector: Detect brief signal dropouts and silent gaps in audio
- Audio Non-Silence Detector: Detect and list the parts of the audio that contain sound
- Audio Duration Checker: Get the exact duration of an audio file
- Audio Caption Sync Checker: Compare SRT or WebVTT cue timing with likely speech activity and flag timing drift.
- Audio Repair Audit Report: Audit an audio file and recommend repair tools

## Samples

- Copyright-Free WAV Audio Samples: Uncompressed PCM WAV audio samples for testing and development, mirrored from MP3 set with nature sounds and meditation music
- Copyright-Free FLAC Audio Samples: Lossless FLAC audio samples for testing and development, mirrored from MP3 set with nature sounds and meditation music
- Copyright-Free MP3 Audio Samples: Collection of royalty-free audio samples for testing and development purposes including nature sounds, meditation music, and ambient audio

## Related content

- [Audio Measurement and Inspection Tools](https://elysiatools.com/en/hubs/audio-analyze): Compare loudness, dynamic range, peak, BPM, key detection, spectral inspection, and metadata review tools in one hub for audio analysis.
- [Audio Loudness, Dynamics, and Mastering Delivery Tools](https://elysiatools.com/en/hubs/audio-mastering-loudness-workflows): Measure LUFS and true peak, normalize loudness, shape dynamics, and prepare podcast, broadcast, or music files for cleaner audio delivery in one mastering-focused hub.
- [Audio Restoration, Noise Repair, and Cleanup Tools](https://elysiatools.com/en/hubs/audio-restoration-repair-workflows): Repair clicks, hum, clipping, crackle, room noise, and spectral problems in one audio restoration hub for old recordings, spoken-word cleanup, and salvage workflows.
- [Karaoke, Stem Separation & Vocal Tools](https://elysiatools.com/en/hubs/karaoke-and-stem-separation-tools): Remove vocals for karaoke tracks, split songs into stems, isolate or double vocals, slice beats, and balance your mix with free browser-based audio tools.
- [Audio Metadata, Tags, Chapters, and Album Art Tools](https://elysiatools.com/en/hubs/audio-metadata): Compare audio metadata viewers, tag editors, metadata cleanup tools, album art utilities, and chapter tools for podcast, music, and audio delivery workflows.