Online Spectrogram Viewer
View frequencies online with a private audio spectrogram viewer. Import an MP3, WAV, FLAC, M4A, or other audio file to analyze frequency content over time, inspect high-frequency rolloff, and spot lossy encoding artifacts directly in your browser.
Import audio to view frequencies online.
Drag & drop an audio file or click to browse.
What can you analyze with an online spectrogram?
A spectrogram is an audio spectrum analyzer over time: low frequencies sit near the bottom, high frequencies sit near the top, and brighter colors show stronger energy. This makes it useful when you need to analyze audio visually instead of only listening.
- Check MP3 bitrate cutoffs and missing high-frequency content.
- Find hiss, hum, clipping, clicks, dropouts, and narrow noise bands.
- Compare speech, music, field recordings, samples, and stems by their frequency content over time.
- Inspect whether an audio file needs restoration, denoising, or high frequency regeneration before release.
Why this spectrogram viewer runs locally
The file is decoded and rendered in the frontend only. Your audio is not imported into a Neural Analog backend project, and the spectrogram is computed from the local file in the browser. That keeps unreleased tracks, client references, podcast edits, and sample packs private while you inspect the frequency view.
Fix audio after you inspect the frequency view
If the online spectrogram shows a hard cutoff, smeared highs, or compression damage, simple format conversion will not add the missing detail back. Neural Analog audio upscaling is designed for restoration: it removes artifacts and regenerates coherent high-frequency information so old MP3s, AI music exports, and noisy recordings can translate closer to studio-quality audio.